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1

Category:Long-Wave Infrared | Open Energy Information  

Open Energy Info (EERE)

Long-Wave Infrared page? For detailed information on Long-Wave Infrared as exploration techniques, click here. Category:Long-Wave Infrared Add.png Add a new Long-Wave Infrared...

2

Long-Wave Infrared | Open Energy Information  

Open Energy Info (EERE)

Long-Wave Infrared Long-Wave Infrared Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Long-Wave Infrared Details Activities (1) Areas (1) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Remote Sensing Techniques Exploration Sub Group: Passive Sensors Parent Exploration Technique: Passive Sensors Information Provided by Technique Lithology: Map characteristic minerals associated with hot springs/mineral deposits Stratigraphic/Structural: Hydrological: Thermal: Map surface temperatures Dictionary.png Long-Wave Infrared: Long Wave Infrared (LWIR) refers to multi- and hyperspectral data collected in the 8 to 15 µm wavelength range. LWIR surveys are sometimes referred to as "thermal imaging" and can be used to identify relatively warm features

3

Geothermal Exploration with Visible through Long Wave Infrared Imaging  

Open Energy Info (EERE)

with Visible through Long Wave Infrared Imaging with Visible through Long Wave Infrared Imaging Spectrometers Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Geothermal Exploration with Visible through Long Wave Infrared Imaging Spectrometers Abstract Surface minerals of active geothermal systems have been mapped using visible-short wave infrared and mid wave and long wave imaging spectrometers separately. May and June 2008, the Prospectir sensor and SEBASS (Spatially Enhanced Broadband Array Spectrograph System) were located on together on a roll compensated mount viewing through the same camera port in a Twin Otter. These two imaging spectrometers have similar Instantaneous Fields of View (IFOV) and together collect over 600 channels of spectral information from the visible to the long wave infrared.

4

Definition: Long-Wave Infrared | Open Energy Information  

Open Energy Info (EERE)

Definition Definition Edit with form History Facebook icon Twitter icon » Definition: Long-Wave Infrared Jump to: navigation, search Dictionary.png Long-Wave Infrared Long Wave Infrared (LWIR) refers to multi- and hyperspectral data collected in the 8 to 15 µm wavelength range. LWIR surveys are sometimes referred to as "thermal imaging" and can be used to identify relatively warm features such as hot springs, fumaroles, and snow melt. LWIR can also be used to map the distribution of certain minerals related to hydrothermal alterations.[2] View on Wikipedia Wikipedia Definition References ↑ Katherine Young,Timothy Reber,Kermit Witherbee. 2012. Hydrothermal Exploration Best Practices and Geothermal Knowledge Exchange on Openei. In: Proceedings of the Thirty-Seventh Workshop on Geothermal

5

Comparison of Long-Wave Infrared Imaging and Visible/Near-Infrared Imaging of Vegetation for  

E-Print Network [OSTI]

Comparison of Long-Wave Infrared Imaging and Visible/Near-Infrared Imaging of Vegetation using spectral imaging. This has been accom- plished with both visible/near-infrared (Vis/NIR) sunlight-path laser absorption measurements [14]­[16], in-situ visible and near-infrared (Vis/NIR) spectral

Lawrence, Rick L.

6

Long-Wave Infrared At Coso Geothermal Area (1968-1971) | Open Energy  

Open Energy Info (EERE)

Long-Wave Infrared At Coso Geothermal Area (1968-1971) Long-Wave Infrared At Coso Geothermal Area (1968-1971) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Long-Wave Infrared At Coso Geothermal Area (1968-1971) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Long-Wave Infrared Activity Date 1968 - 1971 Usefulness useful DOE-funding Unknown Exploration Basis Fumarolic and hot springs activity Notes 8- to 14-micrometer IR imagery has value in delineating the typical arcuate structural patterns References Koenig, J.B.; Gawarecki, S.J.; Austin, C.F. (1 February 1972) Remote sensing survey of the Coso geothermal area, Inyo county, California. Technical publication 1968--1971 Retrieved from "http://en.openei.org/w/index.php?title=Long-Wave_Infrared_At_Coso_Geothermal_Area_(1968-1971)&oldid=473747"

7

Graphene-based long-wave infrared TM surface plasmon modulator  

Science Journals Connector (OSTI)

We describe theoretically a new long-wave infrared optical modulator based on the characteristics of TM surface plasmons in graphene. Calculations made using a finite-? random-phase...

Andersen, David R

2010-01-01T23:59:59.000Z

8

Long Wave Infrared Detection of Chemical Weapons Simulants  

SciTech Connect (OSTI)

The purpose of Task 3.b under PL02-OP211I-PD07 (CBW simulant detection) was to demonstrate the applicability of the sensor work developed under this project for chemical and biological weapons detection. To this end, the specific goal was to demonstrate the feasibility of detection of chemical agents via that of simulants (Freons) with similar spectroscopic features. This has been achieved using Freon-125 as a simulant, a tunable external cavity quantum cascade laser (ECQCL), and a Herriott cell-based sensor developed at Pacific Northwest National Laboratory (PNNL) specifically for this task. The experimentally obtained spectrum of this simulant matches that found in the Northwest Infrared (NWIR) spectral library extremely well, demonstrating the ability of this technique to detect the exact shape of this feature, which in turn indicates the ability to recognize the simulant even in the presence of significant interference. It has also been demonstrated that the detected features of a typical interferent, namely water, are so different in shape and width to the simulant, that they are easily recognized and separated from such a measurement. Judging from the signal-to-noise ratio (SNR) of the experimental data obtained, the noise equivalent absorption sensitivity is estimated to be 0.5 x 10-7 to 1 x 10-6 cm-1. For the particular feature of the simulant examined in this work, this corresponds to a relative concentration of 50 to 25 parts-per-billion by volume (ppbv). The corresponding relative concentrations of other chemical targets would differ depending on the particular transition strengths, and would thus have to be scaled accordingly.

Phillips, Mark C.; Taubman, Matthew S.; Scott, David C.; Myers, Tanya L.; Munley, John T.; Cannon, Bret D.

2007-04-27T23:59:59.000Z

9

Long-wave infrared imaging of vegetation for detecting leaking CO2 gas  

E-Print Network [OSTI]

Long-wave infrared imaging of vegetation for detecting leaking CO2 gas Jennifer E. Johnson Joseph A for detecting leaking CO2 gas Jennifer E. Johnson,a Joseph A. Shaw,a Rick Lawrence,b Paul W. Nugent,a Laura M of these calibrated imagers is imaging of vegetation for CO2 gas leak detection. During a four-week period

Shaw, Joseph A.

10

Hollow Core Fiber Optics for Mid-Wave and Long-Wave Infrared Spectroscopy  

SciTech Connect (OSTI)

The development and testing of hollow core glass waveguides (i.e., fiber optics) for use in Long-Wave Infrared (LWIR) spectroscopy systems is described. LWIR fiber optics are a key enabling technology needed to improve the utility and effectiveness of trace chemical detection systems based in the 8 to 12 micron region. This paper focuses on recent developments in hollow waveguide technology geared specifically for LWIR spectroscopy, including a reduction in both the length dependent loss and the bending loss while maintaining relatively high beam quality. Results will be presented from tests conducted with a Quantum Cascade Laser.

Kriesel, J.M.; Gat, N.; Bernacki, Bruce E.; Erikson, Rebecca L.; Cannon, Bret D.; Myers, Tanya L.; Bledt, Carlos M.; Harrington, J. A.

2011-06-01T23:59:59.000Z

11

Long wave infrared cavity-enhanced sensors using quantum cascade lasers  

SciTech Connect (OSTI)

Quantum cascade lasers (QCLs) are becoming well known as convenient and stable semiconductor laser sources operating in the mid- to long-wave infrared, and are able to be fabricated to operate virtually anywhere in the 3.5 to 25 micron region. This makes them an ideal choice for infrared chemical sensing, a topic of great interest at present, spanning at least three critical areas: national security, environmental monitoring and protection, and the early diagnosis of disease through breath analysis. There are many different laser-based spectroscopic chemical sensor architectures in use today, from simple direct detection through to more complex and highly sensitive systems. Many current sensor needs can be met by combining QCLs and appropriate sensor architectures, those needs ranging from UAV-mounted surveillance systems, through to larger ultra-sensitive systems for airport security. In this paper we provide an overview of various laser-based spectroscopic sensing techniques, pointing out advantages and disadvantages of each. As part of this process, we include our own results and observations for techniques under development at PNNL. We also present the latest performance of our ultra-quiet QCL control electronics now being commercialized, and explore how using optimized supporting electronics enables increased sensor performance and decreased sensor footprint for given applications.

Taubman, Matthew S.; Scott, David C.; Myers, Tanya L.; Cannon, Bret D.

2005-12-30T23:59:59.000Z

12

Systems having optical absorption layer for mid and long wave infrared and methods for making the same  

DOE Patents [OSTI]

An optical system according to one embodiment includes a substrate; and an optical absorption layer coupled to the substrate, wherein the optical absorption layer comprises a layer of diamond-like carbon, wherein the optical absorption layer absorbs at least 50% of mid wave infrared light (3-5 .mu.m wavelength) and at least 50% of long wave infrared light (8-13 .mu.m wavelength). A method for applying an optical absorption layer to an optical system according to another embodiment includes depositing a layer of diamond-like carbon of an optical absorption layer above a substrate using plasma enhanced chemical vapor deposition, wherein the optical absorption layer absorbs at least 50% of mid wave infrared light (3-5 .mu.m wavelength) and at least 50% of long wave infrared light (8-13 .mu.m wavelength). Additional systems and methods are also presented.

Kuzmenko, Paul J

2013-10-01T23:59:59.000Z

13

Ultra-Trace Chemical Sensing with Long-Wave Infrared Cavity-Enhanced Spectroscopic Sensors  

SciTech Connect (OSTI)

The infrared sensors task of Pacific Northwest National Laboratory's (PNNL's) Remote Spectroscopy Project (Task B of Project PL211) is focused on the science and technology of remote and in-situ spectroscopic chemical sensors for detecting proliferation and coun-tering terrorism. Missions to be addressed by remote chemical sensor development in-clude detecting proliferation of nuclear or chemical weapons, and providing warning of terrorist use of chemical weapons. Missions to be addressed by in-situ chemical sensor development include countering terrorism by screening luggage, personnel, and shipping containers for explosives, firearms, narcotics, chemical weapons, or chemical weapons residues, and mapping contaminated areas. The science and technology is also relevant to chemical weapons defense, air operations support, monitoring emissions from chemi-cal weapons destruction or industrial activities, law enforcement, medical diagnostics, and other applications. Sensors for most of these missions will require extreme chemical sensitivity and selectiv-ity because the signature chemicals of importance are expected to be present in low con-centrations or have low vapor pressures, and the ambient air is likely to contain pollutants or other chemicals with interfering spectra. Cavity-enhanced chemical sensors (CES) that draw air samples into optical cavities for laser-based interrogation of their chemical content promise real-time, in-situ chemical detection with extreme sensitivity to specified target molecules and superb immunity to spectral interference and other sources of noise. PNNL is developing CES based on quantum cascade (QC) lasers that operate in the mid-wave infrared (MWIR - 3 to 5 microns) and long-wave infrared (LWIR - 8 to 14 mi-crons), and CES based on telecommunications lasers operating in the short-wave infrared (SWIR - 1 to 2 microns). All three spectral regions are promising because smaller mo-lecular absorption cross sections in the SWIR are offset by the superior performance, ma-turity, and robustness of SWIR lasers, detectors, and other components, while the reverse is true for the MWIR and LWIR bands. PNNL's research activities include identification of signature chemicals and quantification of their spectroscopy, exploration of novel sensing techniques, and experimental sensor system construction and testing. In FY02, experimental QC laser systems developed with DARPA funding were used to explore continuous-wave (cw) CES in various forms culminating in the NICE-OHMS technique [1-3] discussed below. In FY02 PNNL also built an SWIR sensor to validate utility of the SWIR spectral region for chemical sensing, and explore the science and engineering of CES in field environments. The remainder of this report is devoted to PNNL's LWIR CES research. During FY02 PNNL explored the performance and limitations of several detection tech-niques in the LWIR including direct cavity-enhanced absorption, cavity-dithered phase-sensitive detection and resonant sideband cavity-enhanced detection. This latter tech-nique is also known as NICE-OHMS, which stands for Noise-Immune Cavity-Enhanced Optical Heterodyne Molecular Spectroscopy. This technique, pioneered in the near infra-red (NIR) by Dr J. Hall and coworkers at the University of Colorado, is one of the most sensitive spectroscopic techniques currently known. In this report, the first demonstra-tion of this technique in the LWIR is presented.

Taubman, Matthew S.; Myers, Tanya L.; Cannon, Bret D.; Williams, Richard M.; Schultz, John F.

2003-02-20T23:59:59.000Z

14

Isotope Geothermometry | Open Energy Information  

Open Energy Info (EERE)

Isotope Geothermometry Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Isotope Geothermometry Details Activities (0) Areas (0) Regions (0)...

15

Category:Geothermometry | Open Energy Information  

Open Energy Info (EERE)

following 2 subcategories, out of 2 total. G Gas Geothermometry 1 pages I Isotope Geothermometry 1 pages Pages in category "Geothermometry" The following 4 pages...

16

Geothermometry | Open Energy Information  

Open Energy Info (EERE)

Geothermometry Geothermometry Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Geothermometry Details Activities (65) Areas (48) Regions (5) NEPA(0) Exploration Technique Information Exploration Group: Geochemical Techniques Exploration Sub Group: Geochemical Data Analysis Parent Exploration Technique: Geochemical Data Analysis Information Provided by Technique Lithology: Stratigraphic/Structural: Hydrological: Thermal: used to estimate reservoir temperatures Cost Information Low-End Estimate (USD): 30.003,000 centUSD 0.03 kUSD 3.0e-5 MUSD 3.0e-8 TUSD / sample Median Estimate (USD): 30.003,000 centUSD 0.03 kUSD 3.0e-5 MUSD 3.0e-8 TUSD / sample High-End Estimate (USD): 30.003,000 centUSD 0.03 kUSD 3.0e-5 MUSD 3.0e-8 TUSD / sample Dictionary.png Geothermometry:

17

Category:Gas Geothermometry | Open Energy Information  

Open Energy Info (EERE)

navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermalpower.jpg Looking for the Gas Geothermometry page? For detailed information on Gas Geothermometry as exploration...

18

Gas Geothermometry | Open Energy Information  

Open Energy Info (EERE)

Gas Geothermometry Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Geochemical Techniques Exploration Sub Group:...

19

Geothermometry At Nevada Test And Training Range Area (Sabin...  

Open Energy Info (EERE)

Geothermometry At Nevada Test And Training Range Area (Sabin, Et Al., 2004) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermometry At...

20

Geothermometry At Blackfoot Reservoir Area (Hutsinpiller & Parry...  

Open Energy Info (EERE)

Activity Date Usefulness useful DOE-funding Unknown References Amy Hutsinpiller, W. T. Parry (1985) Geochemistry And Geothermometry Of Spring Water From The Blackfoot...

Note: This page contains sample records for the topic "geothermometry long-wave infrared" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Colorado thermal spring water geothermometry (public dataset...  

Open Energy Info (EERE)

dataset) Jump to: navigation, search OpenEI Reference LibraryAdd to library General: Colorado thermal spring water geothermometry (public dataset) Abstract The zipped Excel file...

22

Category:Isotope Geothermometry | Open Energy Information  

Open Energy Info (EERE)

Login | Sign Up Search Category Edit History Facebook icon Twitter icon Category:Isotope Geothermometry Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home...

23

Definition: Geothermometry | Open Energy Information  

Open Energy Info (EERE)

Definition Definition Edit with form History Facebook icon Twitter icon » Definition: Geothermometry Jump to: navigation, search Dictionary.png Geothermometry Chemical geothermometers are used to estimate reservoir temperatures for most of the systems. The geothermometers are based on temperature- dependent, water-rock reactions which control the chemical and isotopic composition of the thermal water. This method is applicable only to hot-water systems because the common chemical constituents of thermal water (SiO2, Na, K, Ca, Mg, Cl, HCO3, and CO3) are soluble in liquid water but lack significant solubility in steam.[1] View on Wikipedia Wikipedia Definition Geothermobarometry is the science of measuring the previous pressure and temperature history of a metamorphic or intrusive igneous rocks.

24

Geothermometry At Akutan Fumaroles Area (Kolker, Et Al., 2010) | Open  

Open Energy Info (EERE)

Akutan Fumaroles Area (Kolker, Et Al., 2010) Akutan Fumaroles Area (Kolker, Et Al., 2010) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermometry At Akutan Fumaroles Area (Kolker, Et Al., 2010) Exploration Activity Details Location Akutan Fumaroles Area Exploration Technique Geothermometry Activity Date Usefulness useful DOE-funding Unknown Notes The chemistry of the hot springs strongly suggests the existence of a neutral chloride reservoir with economically developable temperature. The fluid geothermometry tells a consistent story, with cation geothermometry detecting a >210degrees C reservoir temperature, probably near the fumarole, and silica geothermometry and presence of sinter suggesting that 160 to 180degrees C exists close to hot spring B. References

25

Geothermometry At Honokowai Area (Thomas, 1986) | Open Energy Information  

Open Energy Info (EERE)

Geothermometry At Honokowai Area (Thomas, 1986) Geothermometry At Honokowai Area (Thomas, 1986) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermometry At Honokowai Area (Thomas, 1986) Exploration Activity Details Location Honokowai Area Exploration Technique Geothermometry Activity Date Usefulness not indicated DOE-funding Unknown Notes Temperature and groundwater chemistry analyses were performed on three wells along the alluvial fan above Honokowai. Water temperatures were approximately 20degrees C and normal basal aquifer water chemistry was observed (Table 4). References Donald M. Thomas (1 January 1986) Geothermal Resources Assessment In Hawaii Retrieved from "http://en.openei.org/w/index.php?title=Geothermometry_At_Honokowai_Area_(Thomas,_1986)&oldid=387033"

26

Geothermometry At Fish Lake Valley Area (DOE GTP) | Open Energy...  

Open Energy Info (EERE)

Fish Lake Valley Area (DOE GTP) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermometry At Fish Lake Valley Area (DOE GTP) Exploration...

27

Geothermometry At Gabbs Alkali Flat Area (Kratt, Et Al., 2008...  

Open Energy Info (EERE)

Alkali Flat Area (Kratt, Et Al., 2008) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermometry At Gabbs Alkali Flat Area (Kratt, Et Al.,...

28

Geothermometry At Teels Marsh Area (Coolbaugh, Et Al., 2006)...  

Open Energy Info (EERE)

Coolbaugh, Et Al., 2006) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermometry At Teels Marsh Area (Coolbaugh, Et Al., 2006) Exploration...

29

Geothermometry At Rhodes Marsh Area (Coolbaugh, Et Al., 2006...  

Open Energy Info (EERE)

Coolbaugh, Et Al., 2006) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermometry At Rhodes Marsh Area (Coolbaugh, Et Al., 2006)...

30

Geothermometry At Fort Bliss Area (DOE GTP) | Open Energy Information  

Open Energy Info (EERE)

Fort Bliss Area (DOE GTP) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermometry At Fort Bliss Area (DOE GTP) Exploration Activity...

31

Geothermometry At Coso Geothermal Area (1978) | Open Energy Information  

Open Energy Info (EERE)

Geothermometry At Coso Geothermal Area (1978) Geothermometry At Coso Geothermal Area (1978) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermometry At Coso Geothermal Area (1978) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Geothermometry Activity Date 1978 Usefulness useful DOE-funding Unknown Exploration Basis Determine fluid origin in two exploratory wells Notes Collected water from original coso hot springs well (1967) and CGEH No. 1. and completed chemical analysis to determine fluid origin. The surface expression of fumarole and acid sulfate pools and shallow steam wells gives a false indication of an extensive vapor dominated system because upward convecting, boiling alkaline-chloride waters do not reach the surface.

32

Geothermometry At Haleakala Volcano Area (Thomas, 1986) | Open Energy  

Open Energy Info (EERE)

Geothermometry At Haleakala Volcano Area (Thomas, 1986) Geothermometry At Haleakala Volcano Area (Thomas, 1986) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermometry At Haleakala Volcano Area (Thomas, 1986) Exploration Activity Details Location Haleakala Volcano Area Exploration Technique Geothermometry Activity Date Usefulness not indicated DOE-funding Unknown Notes The field survey program on the northwest rift zone consisted of soil mercury and radon emanometry surveys, groundwater temperature and chemistry studies, Schlumberger resistivity soundings and self-potential profiles. Geophysical and geochemical surveys along this rift (southwest) were limited by difficult field conditions and access limitations. The geophysical program consisted of one Schlumberger sounding, one

33

Geothermometry At Socorro Mountain Area (Armstrong, Et Al., 1995) | Open  

Open Energy Info (EERE)

Geothermometry At Socorro Mountain Area (Armstrong, Et Al., 1995) Geothermometry At Socorro Mountain Area (Armstrong, Et Al., 1995) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermometry At Socorro Mountain Area (Armstrong, Et Al., 1995) Exploration Activity Details Location Socorro Mountain Area Exploration Technique Geothermometry Activity Date Usefulness not indicated DOE-funding Unknown Notes Corresponding Socorro caldera Carboniferous rocks were studied in the field in 1988-1992-Renault later completed geochemistry and silica-crystallite geothermometry, Armstrong petrographic analysis and cathodoluminescence, Oscarson SEM studies, and John Repetski (USGS, Reston, Virgina) conodont stratigraphy and color and textural alteration as guides to the carbonate rocks' thermal history. The carbonate-rock classification used in this

34

Multicomponent Equilibrium Models for Testing Geothermometry Approaches  

SciTech Connect (OSTI)

Geothermometry is an important tool for estimating deep reservoir temperature from the geochemical composition of shallower and cooler waters. The underlying assumption of geothermometry is that the waters collected from shallow wells and seeps maintain a chemical signature that reflects equilibrium in the deeper reservoir. Many of the geothermometers used in practice are based on correlation between water temperatures and composition or using thermodynamic calculations based a subset (typically silica, cations or cation ratios) of the dissolved constituents. An alternative approach is to use complete water compositions and equilibrium geochemical modeling to calculate the degree of disequilibrium (saturation index) for large number of potential reservoir minerals as a function of temperature. We have constructed several forward geochemical models using The Geochemists Workbench to simulate the change in chemical composition of reservoir fluids as they migrate toward the surface. These models explicitly account for the formation (mass and composition) of a steam phase and equilibrium partitioning of volatile components (e.g., CO2, H2S, and H2) into the steam as a result of pressure decreases associated with upward fluid migration from depth. We use the synthetic data generated from these simulations to determine the advantages and limitations of various geothermometry and optimization approaches for estimating the likely conditions (e.g., temperature, pCO2) to which the water was exposed in the deep subsurface. We demonstrate the magnitude of errors that can result from boiling, loss of volatiles, and analytical error from sampling and instrumental analysis. The estimated reservoir temperatures for these scenarios are also compared to conventional geothermometers. These results can help improve estimation of geothermal resource temperature during exploration and early development.

Cooper, D. Craig; Carl D. Palmer; Robert W. Smith; Travis L. McLing

2013-02-01T23:59:59.000Z

35

Geothermometry At Central Nevada Seismic Zone Region (Shevenell & De  

Open Energy Info (EERE)

Region (Shevenell & De Region (Shevenell & De Rocher, 2005) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermometry At Central Nevada Seismic Zone Region (Shevenell & De Rocher, 2005) Exploration Activity Details Location Central Nevada Seismic Zone Geothermal Region Exploration Technique Geothermometry Activity Date Usefulness not indicated DOE-funding Unknown References Lisa Shevenell, Ted De Rocher (2005) Evaluation Of Chemical Geothermometers For Calculating Reservoir Temperatures At Nevada Geothermal Power Plants Retrieved from "http://en.openei.org/w/index.php?title=Geothermometry_At_Central_Nevada_Seismic_Zone_Region_(Shevenell_%26_De_Rocher,_2005)&oldid=401374" Category: Exploration Activities What links here

36

Geothermometry At Kawaihae Area (Thomas, 1986) | Open Energy Information  

Open Energy Info (EERE)

Geothermometry At Kawaihae Area (Thomas, 1986) Geothermometry At Kawaihae Area (Thomas, 1986) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermometry At Kawaihae Area (Thomas, 1986) Exploration Activity Details Location Kawaihae Area Exploration Technique Geothermometry Activity Date Usefulness useful DOE-funding Unknown Notes Groundwater chemical data are limited due to the small number of wells near Kawaihae; however, the data that are available strongly substantiate the presence of a thermal resource. A measured water temperature of 31 degrees C in one well is clearly above normal ambient temperatures, and the chloride/magnesium ion ratio in the same well is elevated substantially above the normal range (Table 8). Both of these data provide strong evidence that at least a low-level thermal anomaly is present in the area.

37

Geothermometry At Lassen Volcanic National Park Area (Janik & Mclaren,  

Open Energy Info (EERE)

Geothermometry At Lassen Volcanic National Park Area (Janik & Mclaren, Geothermometry At Lassen Volcanic National Park Area (Janik & Mclaren, 2010) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermometry At Lassen Volcanic National Park Area (Janik & Mclaren, 2010) Exploration Activity Details Location Lassen Volcanic National Park Area Exploration Technique Geothermometry Activity Date Usefulness useful DOE-funding Unknown Notes Analyses of eight well samples taken consecutively during the flow test showed an inverse correlation between NH3 and Cl_ concentrations. The last sample taken had a pH of 8.35 and contained 2100 ppm Cl_ and 0.55 ppm NH3. Ratios of Na+/K+ and Na+/Cl_ remained nearly constant throughout the flow test. Cation geothermometers (with inherent uncertainties of at least

38

Geothermometry At Mauna Loa Northeast Rift Area (Thomas, 1986) | Open  

Open Energy Info (EERE)

Geothermometry At Mauna Loa Northeast Rift Area (Thomas, 1986) Geothermometry At Mauna Loa Northeast Rift Area (Thomas, 1986) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermometry At Mauna Loa Northeast Rift Area (Thomas, 1986) Exploration Activity Details Location Mauna Loa Northeast Rift Area Exploration Technique Geothermometry Activity Date Usefulness useful DOE-funding Unknown Notes A reexamination of all groundwater sources in the Keaau area was undertaken in an effort to confirm the chemical and temperature anomalies that formed the primary basis on which the Keaau area was identified during the preliminary assessment survey. The data generated by this survey (Table 9) determined that all of the anomalous data present in the earlier data base were spurious and that the groundwater chemistry and temperatures in this

39

Geothermometry At Lualualei Valley Area (Thomas, 1986) | Open Energy  

Open Energy Info (EERE)

Geothermometry At Lualualei Valley Area (Thomas, 1986) Geothermometry At Lualualei Valley Area (Thomas, 1986) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermometry At Lualualei Valley Area (Thomas, 1986) Exploration Activity Details Location Lualualei Valley Area Exploration Technique Geothermometry Activity Date Usefulness useful DOE-funding Unknown Notes Yhe extensive set of groundwater chemical data compiled for the wells in the valley (Table 1) showed that two of the primary indicators that have been commonly used in Hawaii for identifying geothermal potential (i.e. silica concentration and chloride to magnesium ion ratios) were anomalous in the groundwater of this survey area (Cox and Thomas, 1979). Several wells located on the caldera boundaries were found to have both

40

Geochemistry And Geothermometry Of Spring Water From The Blackfoot  

Open Energy Info (EERE)

Geothermometry Of Spring Water From The Blackfoot Geothermometry Of Spring Water From The Blackfoot Reservoir Region, Southeastern Idaho Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Geochemistry And Geothermometry Of Spring Water From The Blackfoot Reservoir Region, Southeastern Idaho Details Activities (3) Areas (1) Regions (0) Abstract: The Blackfoot Reservoir region in southeastern Idaho is recognized as a potential geothermal area because of the presence of several young rhyolite domes (50,000 years old), Quaternary basalt flows, and warm springs. North- to northwest-trending high-angle normal faults of Tertiary to Holocene age appear to be the dominant structural control of spring activity. Surface spring-water temperatures average 14°C except for a group of springs west of the Reservoir Mountains which average 33°C.

Note: This page contains sample records for the topic "geothermometry long-wave infrared" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Geothermometry At Raft River Geothermal Area (1980) | Open Energy  

Open Energy Info (EERE)

Geothermometry At Raft River Geothermal Area (1980) Geothermometry At Raft River Geothermal Area (1980) Exploration Activity Details Location Raft River Geothermal Area Exploration Technique Geothermometry Activity Date 1980 Usefulness not indicated DOE-funding Unknown Notes Geothermometer temperatures of shallow samples suggest significant re-equilibration at temperatures below those found in the deep wells. Silica geothermometer temperatures of water samples from the deep wells are in reasonable agreement with measured temperatures, whereas Na-K-Ca temperatures are significantly higher than measured temperatures. The chemical characteristics of the water, as indicated by chloride concentration, are extremely variable in shallow and deep samples. Chloride concentrations of the deep samples range from 580 to 2200 mg/kg.

42

Geothermometry At Coso Geothermal Area (1980) | Open Energy Information  

Open Energy Info (EERE)

Geothermometry At Coso Geothermal Area (1980) Geothermometry At Coso Geothermal Area (1980) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Geothermometry Activity Date 1980 Usefulness useful DOE-funding Unknown Exploration Basis Fluid temperature of feed water Notes Cation and sulfate isotope geothermometers indicate that the reservoir feeding water to the Coso Hot Spring well has a temperature of about 240 -250 C, and the reservoir feeding the CGEH well has a temperature of about 205 C. The variation in the chemical composition of water from the two wells suggests a model in which water-rock chemical equilibrium is maintained as a convecting solution cools from about 245-205 C by conductive heat loss. References Fournier, R.O.; Thompson, J.M.; Austin, C.F. (10 May 1980)

43

Geothermometry At Lahaina-Kaanapali Area (Thomas, 1986) | Open Energy  

Open Energy Info (EERE)

Lahaina-Kaanapali Area (Thomas, 1986) Lahaina-Kaanapali Area (Thomas, 1986) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermometry At Lahaina-Kaanapali Area (Thomas, 1986) Exploration Activity Details Location Lahaina-Kaanapali Area Exploration Technique Geothermometry Activity Date Usefulness not indicated DOE-funding Unknown Notes Groundwater temperature and chemistry surveys were similarly unable to identify any detectable thermal influence on the basal groundwaters. Silica concentrations and water temperatures (Table 4) were within the normal range expected for basal groundwaters receiving a limited amount of irrigation return water; chloride/magnesium ratios ranged downward from normal seawater values. References Donald M. Thomas (1 January 1986) Geothermal Resources Assessment In

44

Improved Geothermometry Through Multivariate Reaction Path Modeling and Evaluation of Geomicrobiological Influences on Geochemical Temperature Indicators  

Broader source: Energy.gov [DOE]

Improved Geothermometry Through Multivariate Reaction Path Modeling and Evaluation of Geomicrobiological Influences on Geochemical Temperature Indicators presentation at the April 2013 peer review meeting held in Denver, Colorado.

45

Suspended sediment and hydrodynamics above mildly sloped long wave ripples  

E-Print Network [OSTI]

Suspended sediment and hydrodynamics above mildly sloped long wave ripples Yeon S. Chang of suspended sediment and the associated hydrodynamics over mildly sloped long wave ripples on the inner shelf m. The vertical and temporal structures of the suspended sediment concentration (SSC) are consistent

Kirby, James T.

46

Geothermometry At Hot Springs Ranch Area (Szybinski, 2006) | Open Energy  

Open Energy Info (EERE)

Hot Springs Ranch Area (Szybinski, 2006) Hot Springs Ranch Area (Szybinski, 2006) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermometry At Hot Springs Ranch Area (Szybinski, 2006) Exploration Activity Details Location Hot Springs Ranch Area Exploration Technique Geothermometry Activity Date Usefulness useful DOE-funding Unknown Notes The brine from the drill holes, hot springs, seepages, and irrigation wells was sampled, as well as water from two nearby creeks, (total of 13 samples) and sent for analysis to Thermochem Inc. For sample locations refer to Figure 35; the geochemical data are presented in Appendix C. Geochemical results indicate the presence of two distinct waters in this group of samples (Tom Powell of Thermochem Inc., personal communication, 2005).

47

Geothermometry At Buffalo Valley Hot Springs Area (Laney, 2005) | Open  

Open Energy Info (EERE)

Buffalo Valley Hot Springs Area (Laney, 2005) Buffalo Valley Hot Springs Area (Laney, 2005) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermometry At Buffalo Valley Hot Springs Area (Laney, 2005) Exploration Activity Details Location Buffalo Valley Hot Springs Area Exploration Technique Geothermometry Activity Date Usefulness not indicated DOE-funding Unknown Notes Geochemical Sampling of Thermal and Non-thermal Waters in Nevada, Shevenell and Garside. The objective of this project is to obtain geochemical data from springs (and some wells) for which data are not publicly available, or for which the analyses are incomplete, poor, or nonexistent. With these data, geothermometers are being calculated and a preliminary assessment of the geothermal potential and ranking of the sampled areas is being

48

Geothermometry At Socorro Mountain Area (Owens, Et Al., 2005) | Open Energy  

Open Energy Info (EERE)

Geothermometry At Socorro Mountain Area (Owens, Et Al., 2005) Geothermometry At Socorro Mountain Area (Owens, Et Al., 2005) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermometry At Socorro Mountain Area (Owens, Et Al., 2005) Exploration Activity Details Location Socorro Mountain Area Exploration Technique Geothermometry Activity Date Usefulness not indicated DOE-funding Unknown Notes Pre-existing evidence includes heat gradients of upwards of 490mW/m2 from thermal-gradient wells, tepid spring waters (32oC) and silica geochemistry indicating thermal waters with a minimum of 82oC at depth References Lara Owens, Richard Baars, David Norman, Harold Tobin (2005) New Methods In Exploration At The Socorro Peak Kgra- A Gred Iii Project Retrieved from "http://en.openei.org/w/index.php?title=Geothermometry_At_Socorro_Mountain_Area_(Owens,_Et_Al.,_2005)&oldid=389518

49

Geothermometry At Columbus Salt Marsh Area (Shevenell, Et Al., 2008) | Open  

Open Energy Info (EERE)

Geothermometry At Columbus Salt Marsh Area (Shevenell, Et Al., 2008) Geothermometry At Columbus Salt Marsh Area (Shevenell, Et Al., 2008) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermometry At Columbus Salt Marsh Area (Shevenell, Et Al., 2008) Exploration Activity Details Location Columbus Salt Marsh Area Exploration Technique Geothermometry Activity Date Usefulness useful DOE-funding Unknown Notes Borate crusts that were partially mined during the 1800s were identified and mapped at Rhodes, Teels, and Columbus Marshes (playas), all in western Nevada (Figure 1). Subsequent field verification and chemical analyses of well, spring and groundwater samples indicated the presence of hidden subsurface geothermal reservoirs. Cation and quartz geothermometry indicate subsurface reservoir temperatures between 118°C and 162°C at all three

50

Geothermometry At Walker-Lane Transitional Zone Region (Shevenell & De  

Open Energy Info (EERE)

Shevenell & De Shevenell & De Rocher, 2005) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermometry At Walker-Lane Transitional Zone Region (Shevenell & De Rocher, 2005) Exploration Activity Details Location Walker-Lane Transition Zone Geothermal Region Exploration Technique Geothermometry Activity Date Usefulness not indicated DOE-funding Unknown References Lisa Shevenell, Ted De Rocher (2005) Evaluation Of Chemical Geothermometers For Calculating Reservoir Temperatures At Nevada Geothermal Power Plants Retrieved from "http://en.openei.org/w/index.php?title=Geothermometry_At_Walker-Lane_Transitional_Zone_Region_(Shevenell_%26_De_Rocher,_2005)&oldid=399607" Category: Exploration Activities What links here Related changes

51

Geothermometry At Salt Wells Area (Henkle, Et Al., 2005) | Open Energy  

Open Energy Info (EERE)

Geothermometry At Salt Wells Area (Henkle, Et Al., 2005) Geothermometry At Salt Wells Area (Henkle, Et Al., 2005) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermometry At Salt Wells Area (Henkle, Et Al., 2005) Exploration Activity Details Location Salt Wells Geothermal Area Exploration Technique Geothermometry Activity Date 2004 - 2005 Usefulness useful DOE-funding Unknown Exploration Basis Adsorbed mercury soil geochemical surveys and radiometric geophysical surveys were carried out in conjunction with geologic mapping to test the application of these ground-based techniques to geothermal exploration at three prospects in Nevada by Henkle Jr. et al. in 2005. Mercury soil vapor surveys were not widely used in geothermal exploration in the western US at the time, although the association of mercury vapors with geothermal

52

Geothermometry At Upper Hot Creek Ranch Area (Benoit & Blackwell, 2006) |  

Open Energy Info (EERE)

Geothermometry At Upper Hot Creek Ranch Area (Benoit & Blackwell, 2006) Geothermometry At Upper Hot Creek Ranch Area (Benoit & Blackwell, 2006) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermometry At Upper Hot Creek Ranch Area (Benoit & Blackwell, 2006) Exploration Activity Details Location Upper Hot Creek Ranch Area Exploration Technique Geothermometry Activity Date Usefulness useful DOE-funding Unknown Notes Ten water samples were collected for chemical analysis and interpretation. Analyses of three samples of the UHCR thermal give predicted subsurface temperatures ranging from 317 to 334 oF from the Na-K-Ca, silica (quartz), and Na-Li geothermometers. The fact that all three thermometers closely agree gives the predictions added credibility. References Dick Benoit, David Blackwell (2006) Exploration Of The Upper Hot

53

Geothermometry At Northern Basin & Range Region (Laney, 2005) | Open Energy  

Open Energy Info (EERE)

Geothermometry At Northern Basin & Range Region (Laney, 2005) Geothermometry At Northern Basin & Range Region (Laney, 2005) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermometry At Northern Basin & Range Region (Laney, 2005) Exploration Activity Details Location Northern Basin and Range Geothermal Region Exploration Technique Geothermometry Activity Date Usefulness not indicated DOE-funding Unknown Notes Geochemical Sampling of Thermal and Non-thermal Waters in Nevada, Shevenell and Garside. The objective of this project is to obtain geochemical data from springs (and some wells) for which data are not publicly available, or for which the analyses are incomplete, poor, or nonexistent. With these data, geothermometers are being calculated and a preliminary assessment of

54

Geothermometry At U.S. Midwest Region (Vugrinovich, 1987) | Open Energy  

Open Energy Info (EERE)

Geothermometry At U.S. Midwest Region (Vugrinovich, 1987) Geothermometry At U.S. Midwest Region (Vugrinovich, 1987) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermometry At U.S. Midwest Region (Vugrinovich, 1987) Exploration Activity Details Location U.S. Midwest Region Exploration Technique Geothermometry Activity Date Usefulness useful DOE-funding Unknown Notes Michigan "The silica heat flow estimator does provide estimates of surface heat flow which appear to be in good agreement with conventional estimates, but which are not entirely free from disturbances caused by groundwater movements. The technique should be more widely applied to areas where conventional heat flow measurements are lacking." References Raymond Vugrinovich (1987) Regional Heat Flow Variations In The

55

Geothermometry At Rhodes Marsh Area (Shevenell, Et Al., 2008) | Open Energy  

Open Energy Info (EERE)

Geothermometry At Rhodes Marsh Area (Shevenell, Et Geothermometry At Rhodes Marsh Area (Shevenell, Et Al., 2008) Exploration Activity Details Location Rhodes Marsh Area Exploration Technique Geothermometry Activity Date Usefulness useful DOE-funding Unknown Notes Borate crusts that were partially mined during the 1800s were identified and mapped at Rhodes, Teels, and Columbus Marshes (playas), all in western Nevada (Figure 1). Subsequent field verification and chemical analyses of well, spring and groundwater samples indicated the presence of hidden subsurface geothermal reservoirs. Cation and quartz geothermometry indicate subsurface reservoir temperatures between 118°C and 162°C at all three areas based on results from waters sampled proximal to borate crusts. References Lisa Shevenell, Mark Coolbaugh, Chris Sladek, Rick Zehner, Chris

56

Geothermometry At Reese River Area (Henkle & Ronne, 2008) | Open Energy  

Open Energy Info (EERE)

Geothermometry At Reese River Area (Henkle & Ronne, 2008) Geothermometry At Reese River Area (Henkle & Ronne, 2008) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermometry At Reese River Area (Henkle & Ronne, 2008) Exploration Activity Details Location Reese River Area Exploration Technique Geothermometry Activity Date Usefulness not indicated DOE-funding Unknown Notes Four formation water samples were collected from well 56-4, during an airlift test which took place between November 11 and November 14, 2007. One sample was taken from the Steiner Well which was the source for drilling water for the drilling of 56-4 and for the short injection test. The samples were analyzed by Thermochem for chemical constituents and by Rafter Lab at GNS for isotope analysis. References

57

Geothermometry At Fish Lake Valley Area (Deymonaz, Et Al., 2008) | Open  

Open Energy Info (EERE)

Geothermometry At Fish Lake Valley Area (Deymonaz, Et Al., 2008) Geothermometry At Fish Lake Valley Area (Deymonaz, Et Al., 2008) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermometry At Fish Lake Valley Area (Deymonaz, Et Al., 2008) Exploration Activity Details Location Fish Lake Valley Area Exploration Technique Geothermometry Activity Date Usefulness useful DOE-funding Unknown Notes There are no thermal springs within the Emigrant prospect area, but unambiguously indigenous hotwater samples were collected from boreholes 211 (see above) and 112 (Fig. 3). These samples were analyzed for major and selected minor chemical components (Table 1; Pilkington, 1984). Hot water at 96degrees C from borehole 211 was collected by airlifting from a depth of 123 m (water level) at a rate of 240 liters per minute. The

58

Geothermometry At Central Nevada Seismic Zone Region (Laney, 2005) | Open  

Open Energy Info (EERE)

Region Region (Laney, 2005) Exploration Activity Details Location Central Nevada Seismic Zone Geothermal Region Exploration Technique Geothermometry Activity Date Usefulness not indicated DOE-funding Unknown Notes Geochemical Sampling of Thermal and Non-thermal Waters in Nevada, Shevenell and Garside. The objective of this project is to obtain geochemical data from springs (and some wells) for which data are not publicly available, or for which the analyses are incomplete, poor, or nonexistent. With these data, geothermometers are being calculated and a preliminary assessment of the geothermal potential and ranking of the sampled areas is being conducted using the new geochemical data. Objectives changed slightly in 2004. Samples are now being collected at sites identified by other

59

Geothermometry At Salt Wells Area (Edmiston & Benoit, 1984) | Open Energy  

Open Energy Info (EERE)

Geothermometry At Salt Wells Area (Edmiston & Benoit, Geothermometry At Salt Wells Area (Edmiston & Benoit, 1984) Exploration Activity Details Location Salt Wells Geothermal Area Exploration Technique Geothermometry Activity Date 1980 - 1984 Usefulness useful DOE-funding Unknown Exploration Basis The blind Salt Wells geothermal system was first identified when Anadarko Petroleum Corporation drilled slim hole and geothermal exploration wells at the site in 1980. Two reports detail the results of this drilling activity. This paper seeks to (1) describe several moderate-temperature (150-200°C) geothermal systems discovered and drilled during the early 1980's that had not been documented previously in the literature, (2) summarize and compare chemical and temperature data from known moderate- to high-temperature (>200°C) in the region, and (3) to comment on the

60

Geothermometry At Salt Wells Area (Coolbaugh, Et Al., 2006) | Open Energy  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » Geothermometry At Salt Wells Area (Coolbaugh, Et Al., 2006) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermometry At Salt Wells Area (Coolbaugh, Et Al., 2006) Exploration Activity Details Location Salt Wells Geothermal Area Exploration Technique Geothermometry Activity Date 2005 - 2005 Usefulness useful DOE-funding Unknown Exploration Basis Geochemical water sampling, mineral distribution mapping, and shallow (30 cm) temperature probe measurements were conducted to expand on a previous field mapping study of surface geothermal features at Salt Wells, in order

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61

Geothermometry At Nw Basin & Range Region (Laney, 2005) | Open Energy  

Open Energy Info (EERE)

Geothermometry At Nw Basin & Range Region (Laney, Geothermometry At Nw Basin & Range Region (Laney, 2005) Exploration Activity Details Location Northwest Basin and Range Geothermal Region Exploration Technique Geothermometry Activity Date Usefulness not indicated DOE-funding Unknown Notes Geochemical Sampling of Thermal and Non-thermal Waters in Nevada, Shevenell and Garside. The objective of this project is to obtain geochemical data from springs (and some wells) for which data are not publicly available, or for which the analyses are incomplete, poor, or nonexistent. With these data, geothermometers are being calculated and a preliminary assessment of the geothermal potential and ranking of the sampled areas is being conducted using the new geochemical data. Objectives changed slightly in 2004. Samples are now being collected at sites identified by other

62

Geothermometry At Nevada Test And Training Range Area (Sabin, Et Al., 2004)  

Open Energy Info (EERE)

2004) 2004) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermometry At Nevada Test And Training Range Area (Sabin, Et Al., 2004) Exploration Activity Details Location Nevada Test And Training Range Area Exploration Technique Geothermometry Activity Date Usefulness not indicated DOE-funding Unknown Notes Groundwater data are limited to a portion of NAFR; data are more plentiful beyond the range boundaries. Geothermometry yields calculated groundwater temperatures generally ranging from 30 to 105degrees C, with a rough correlation between the SiO2-chalcedony and the Na-K-Na (Mg-corrected) geothermometers. References A. E. Sabin, J. D. Walker, J. Unruh, F. C. Monastero (2004) Toward The Development Of Occurrence Models For Geothermal Resources In The

63

Geothermometry At Teels Marsh Area (Shevenell, Et Al., 2008) | Open Energy  

Open Energy Info (EERE)

Shevenell, Et Al., 2008) Shevenell, Et Al., 2008) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermometry At Teels Marsh Area (Shevenell, Et Al., 2008) Exploration Activity Details Location Teels Marsh Area Exploration Technique Geothermometry Activity Date Usefulness useful DOE-funding Unknown Notes Borate crusts that were partially mined during the 1800s were identified and mapped at Rhodes, Teels, and Columbus Marshes (playas), all in western Nevada (Figure 1). Subsequent field verification and chemical analyses of well, spring and groundwater samples indicated the presence of hidden subsurface geothermal reservoirs. Cation and quartz geothermometry indicate subsurface reservoir temperatures between 118°C and 162°C at all three areas based on results from waters sampled proximal to borate crusts.

64

Rogue waves for a long wave-short wave resonance model with multiple short waves  

E-Print Network [OSTI]

1 Rogue waves for a long wave-short wave resonance model with multiple short waves Hiu Ning Chan (1 waves; Long-short resonance PACS Classification: 02.30.Jr; 05.45.Yv; 47.35.Fg #12;2 ABSTRACT A resonance between long and short waves will occur if the phase velocity of the long wave matches the group velocity

65

Geothermometry At Walker-Lane Transitional Zone Region (Laney, 2005) | Open  

Open Energy Info (EERE)

Laney, 2005) Laney, 2005) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermometry At Walker-Lane Transitional Zone Region (Laney, 2005) Exploration Activity Details Location Walker-Lane Transition Zone Geothermal Region Exploration Technique Geothermometry Activity Date Usefulness not indicated DOE-funding Unknown Notes Geochemical Sampling of Thermal and Non-thermal Waters in Nevada, Shevenell and Garside. The objective of this project is to obtain geochemical data from springs (and some wells) for which data are not publicly available, or for which the analyses are incomplete, poor, or nonexistent. With these data, geothermometers are being calculated and a preliminary assessment of the geothermal potential and ranking of the sampled areas is being

66

Geothermometry At Northern Basin & Range Region (Cole, 1983) | Open Energy  

Open Energy Info (EERE)

Northern Basin & Range Region Northern Basin & Range Region (Cole, 1983) Exploration Activity Details Location Northern Basin and Range Geothermal Region Exploration Technique Geothermometry Activity Date Usefulness not indicated DOE-funding Unknown Notes Wstern Utah hot springs: Antelope, Fish (Deadman), Fish (Wilson), Twin Peak, Cudahy, Laverkin, Grantsville, Crystal Prison, Arrowhead, Red Hill, Monroe, Joseph, Castilla, Saratoga, Thermo, Crater, Wasatch, Beck, Deseret, Big Spring, Blue Warm, Crystal Madsen, Udy, Cutler, Garland, Utah, Ogden, Hooper, Newcastle Area References David R. Cole (1983) Chemical And Isotopic Investigation Of Warm Springs Associated With Normal Faults In Utah Retrieved from "http://en.openei.org/w/index.php?title=Geothermometry_At_Northern_Basin_%26_Range_Region_(Cole,_1983)&oldid=4014

67

Geothermometry At Clear Lake Area (Thompson, Et Al., 1992) | Open Energy  

Open Energy Info (EERE)

Clear Lake Area (Thompson, Et Al., 1992) Clear Lake Area (Thompson, Et Al., 1992) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermometry At Clear Lake Area (Thompson, Et Al., 1992) Exploration Activity Details Location Clear Lake Area Exploration Technique Geothermometry Activity Date Usefulness useful DOE-funding Unknown Notes Based on the above discussion, we favor a model in which thermal water rises somewhere between Howard and Seigler Springs. At Howard Springs we see evidence for the most representative deep thermal water because the C1 is elevated (highest measured C1 concentrations occur at Howard Springs). Moreover, the Na-Li, Na-K and Na-K-Ca geothermometers suggest temperatures greater than 240 degrees C. References J. M. Thompson, R. H. Mariner, L. D. White, T. S. Presser, W. C.

68

Geothermometry At Desert Queen Area (Garchar & Arehart, 2008) | Open Energy  

Open Energy Info (EERE)

Queen Area (Garchar & Arehart, 2008) Queen Area (Garchar & Arehart, 2008) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Geothermometry At Desert Queen Area (Garchar & Arehart, 2008) Exploration Activity Details Location Desert Queen Area Exploration Technique Geothermometry Activity Date Usefulness not indicated DOE-funding Unknown Notes Temperatures of the reservoir at depth are estimated to be between 92-141 degrees C and were calculated using the δ18O(SO4-H2O) geothermometer. It is unclear whether these temperatures reflect waters from the outflow zone of the Desert Peak geothermal system, or waters from a different reservoir at Desert Queen. Quartz, chalcedony, amorphous silica, Na-K-Ca, and δ18O(SO4-H2O) geothermometer calculations were performed.

69

An experimental investigation into the effects of fluid composition on certain geothermometry methods  

E-Print Network [OSTI]

at the lower temperatures, and 5) thermal waters do not mix with shallower, cooler ground water. Silica geothermometer The dissolved silica content of geothermal water is used in geothermometry because silica is present in most geologic settings... This presents a real problem in evaluation of the geo- thermal potential of the area; one method gives reservoir temperatures high enough for potential geothermal energy use but another gives temperatures that are too low. The waters studied by Henry can...

Pope, Leslie Anne

2012-06-07T23:59:59.000Z

70

Long Wave Resonance in Tropical Oceans and Implications on Climate: the Atlantic Ocean  

Science Journals Connector (OSTI)

A wavelet analysis is preferred to a complex EOF analysis to investigate the resonance of long waves in the tropical ocean. If the two methods are similar for ... typical frequency domain analyses, i.e. the power

Jean-Louis Pinault

2013-11-01T23:59:59.000Z

71

Optimized multicomponent vs. classical geothermometry: Insights from modeling studies at the Dixie Valley geothermal area  

Science Journals Connector (OSTI)

Abstract A new geothermometry approach is explored, incorporating multicomponent geothermometry coupled with numerical optimization to provide more confident estimates of geothermal reservoir temperatures when results of classical geothermometers are inconsistent. This approach is applied to geothermal well and spring waters from the Dixie Valley geothermal area (Nevada), to evaluate the influence of salt brines mixing and dilution of geothermal fluids on calculated temperatures. The main advantage of the optimized multicomponent method over classical geothermometers is its ability to quantify the extent of dilution and gas loss experienced by a geothermal fluid, and to optimize other poorly constrained or unknown parameters (such as Al and Mg concentrations), allowing the reconstruction of the deep reservoir fluid composition and therefore gaining confidence in reservoir temperatures estimations. Because the chemical evolution of deep geothermal fluids is a combination of multiple time-dependent processes that take place when these fluids ascend to the surface, reactive transport modeling is used to assess constraints on the application of solute geothermometers. Simulation results reveal that Al and Mg concentrations of ascending fluids are sensitive to mineral precipitationdissolution affecting reservoir temperatures inferred with multicomponent geothermometry. In contrast, simulations show that the concentrations of major elements such as Na, K, and SiO2 are less sensitive to re-equilibration. Geothermometers based on these elements give reasonable reservoir temperatures in many cases, except when dilution or mixing with saline waters has taken place. Optimized multicomponent geothermometry yields more representative temperatures for such cases. Taking into account differences in estimated temperatures, and chemical compositions of the Dixie Valley thermal waters, a conceptual model of two main geothermal reservoirs is proposed. The first reservoir is located along the Stillwater range normal fault system and has an estimated temperature of 240260C. It covers the area corresponding to the geothermal field but could extend towards the south-west where deep temperatures of 200225C are estimated. The second reservoir has an estimated temperature of 175190C and extends from well 62-21 to northeastern Hyder, Lower Ranch, Fault Line, and Jersey springs.

L. Peiffer; C. Wanner; N. Spycher; E.L. Sonnenthal; B.M. Kennedy; J. Iovenitti

2014-01-01T23:59:59.000Z

72

Bias-Dependent Tunable Response of Normal Incidence Long Wave Infrared Quantum Dot Detectors  

E-Print Network [OSTI]

(FLIR) applications, a broadband response is desirable. However, for multispectral imaging" sensors can be operated in the FLIR mode (possibl

Hayat, Majeed M.

73

Gas Phase Photoacoustic Spectroscopy in the long-wave IR using Quartz Tuning Forks and Amplitude Modulated Quantum Cascade Lasers  

SciTech Connect (OSTI)

A paper to accompany a 20 minute talk about the progress of a DARPA funded project called LPAS. ABSTRACT: We demonstrate the performance of a novel long-wave infrared photoacoustic laser absorbance spectrometer for gas-phase species using an amplitude modulated (AM) quantum cascade (QC) laser and a quartz tuning fork microphone. Photoacoustic signal was generated by focusing the output of a Fabry-Perot QC laser operating at 8.41 micron between the legs of a quartz tuning fork which served as a transducer for the transient acoustic pressure wave. The QC laser was modulated at the resonant frequency of the tuning fork (32.8 kHz). This sensor was calibrated using the infrared absorber Freon-134a by performing a simultanious absorption measurement using a 35 cm absorption cell. The NEAS of this instrument was determined to be 2 x 10^-8 W cm^-1 /Hz^1/2 and the fundamental sensitivity of this technique is limited by the noise floor of the tuning fork itself.

Wojcik, Michael D.; Phillips, Mark C.; Cannon, Bret D.

2006-12-31T23:59:59.000Z

74

Geothermometry At Long Valley Caldera Area (Sorey, Et Al., 1991) | Open  

Open Energy Info (EERE)

Long Valley Caldera Area (Sorey, Et Long Valley Caldera Area (Sorey, Et Al., 1991) Exploration Activity Details Location Long Valley Caldera Area Exploration Technique Geothermometry Activity Date Usefulness could be useful with more improvements DOE-funding Unknown Notes Silica-geothermometer temperature estimates for the Casa Diablo and RDO-8 well samples ( 196-202 degrees C) are lower than the corresponding cation-geothermometer temperature estimates, indicating loss of silica with declining reservoir temperature or dilution with low-silica waters. At shallow depths in the caldera References Michael L. Sorey, Gene A. Suemnicht, Neil C. Sturchio, Gregg A. Nordquist (1991) New Evidence On The Hydrothermal System In Long Valley Caldera, California, From Wells, Fluid Sampling, Electrical Geophysics, And

75

Coexisting rogue waves within the (2+1)-component long-waveshort-wave resonance  

Science Journals Connector (OSTI)

The coexistence of two different types of fundamental rogue waves is unveiled, based on the coupled equations describing the (2+1)-component long-waveshort-wave resonance. For a wide range of asymptotic background fields, each family of three rogue wave components can be triggered by using a slight deterministic alteration to the otherwise identical background field. The ability to trigger markedly different rogue wave profiles from similar initial conditions is confirmed by numerical simulations. This remarkable feature, which is absent in the scalar nonlinear Schrdinger equation, is attributed to the specific three-wave interaction process and may be universal for a variety of multicomponent wave dynamics spanning from oceanography to nonlinear optics.

Shihua Chen; Jose M. Soto-Crespo; Philippe Grelu

2014-09-15T23:59:59.000Z

76

Mixed solitons in a (2+1)-dimensional multicomponent long-waveshort-wave system  

Science Journals Connector (OSTI)

We derive a (2+1)-dimensional multicomponent long-wave?short-wave resonance interaction (LSRI) system as the evolution equation for propagation of N-dispersive waves in weak Kerr-type nonlinear medium in the small-amplitude limit. The mixed- (bright-dark) type soliton solutions of a particular (2+1)-dimensional multicomponent LSRI system, deduced from the general multicomponent higher-dimensional LSRI system, are obtained by applying the Hirota's bilinearization method. Particularly, we show that the solitons in the LSRI system with two short-wave components behave like scalar solitons. We point out that for an N-component LSRI system with N>3, if the bright solitons appear in at least two components, interesting collision behavior takes place, resulting in energy exchange among the bright solitons. However, the dark solitons undergo standard elastic collision accompanied by a position shift and a phase shift. Our analysis on the mixed bound solitons shows that the additional degree of freedom which arises due to the higher-dimensional nature of the system results in a wide range of parameters for which the soliton collision can take place.

T. Kanna; M. Vijayajayanthi; M. Lakshmanan

2014-10-01T23:59:59.000Z

77

FY 2006 Infrared Photonics Final Report  

SciTech Connect (OSTI)

Research done by the Infrared Photonics team at Pacific Northwest National Laboratory (PNNL) is focused on developing miniaturized integrated optics and optical fiber processing methods for mid-wave infrared (MWIR) and long-wave infrared (LWIR) sensing applications by exploiting the unique optical and material properties of chalcogenide glass. PNNL has developed thin-film deposition capabilities, direct laser writing techniques, infrared photonic device demonstration, holographic optical element design and fabrication, photonic device modeling, and advanced optical metrologyall specific to chalcogenide glass. Chalcogenide infrared photonics provides a pathway to quantum cascade laser (QCL) transmitter miniaturization. The high output power, small size, and superb stability and modulation characteristics of QCLs make them amenable for integration as transmitters into ultra-sensitive, ultra-selective point sampling and remote short-range chemical sensors that are particularly useful for nuclear nonproliferation missions.

Anheier, Norman C.; Allen, Paul J.; Bernacki, Bruce E.; Ho, Nicolas; Krishnaswami, Kannan; Qiao, Hong (Amy); Schultz, John F.

2006-12-28T23:59:59.000Z

78

FY 2005 Infrared Photonics Final Report  

SciTech Connect (OSTI)

Research done by the Infrared Photonics team at Pacific Northwest National Laboratory (PNNL) is focused on developing miniaturized integrated optics for mid-wave infrared (MWIR) and long-wave infrared (LWIR) sensing applications by exploiting the unique optical and material properties of chalcogenide glass. PNNL has developed thin-film deposition capabilities, direct laser writing techniques, infrared photonic device demonstration, holographic optical element design and fabrication, photonic device modeling, and advanced optical metrologyall specific to chalcogenide glass. Chalcogenide infrared photonics provides a pathway to quantum cascade laser (QCL) transmitter miniaturization. QCLs provide a viable infrared laser source for a new class of laser transmitters capable of meeting the performance requirements for a variety of national security sensing applications. The high output power, small size, and superb stability and modulation characteristics of QCLs make them amenable for integration as transmitters into ultra-sensitive, ultra-selective point sampling and remote short-range chemical sensors that are particularly useful for nuclear nonproliferation missions. During FY 2005, PNNLs Infrared Photonics research team made measurable progress exploiting the extraordinary optical and material properties of chalcogenide glass to develop miniaturized integrated optics for mid-wave infrared (MWIR) and long-wave infrared (LWIR) sensing applications. We investigated sulfur purification methods that will eventually lead to routine production of optical quality chalcogenide glass. We also discovered a glass degradation phenomenon and our investigation uncovered the underlying surface chemistry mechanism and developed mitigation actions. Key research was performed to understand and control the photomodification properties. This research was then used to demonstrate several essential infrared photonic devices, including LWIR single-mode waveguide devices and waveguide couplers. Optical metrology tools were also developed to characterize optical waveguide structures and LWIR optical components.

Anheier, Norman C.; Allen, Paul J.; Ho, Nicolas; Krishnaswami, Kannan; Johnson, Bradley R.; Sundaram, S. K.; Riley, Bradley M.; Martinez, James E.; Qiao, Hong (Amy); Schultz, John F.

2005-12-01T23:59:59.000Z

79

Infrared Spectrophotometry  

Science Journals Connector (OSTI)

The wavelengths at which radiation is absorbed or emitted by minerals in the IR region can be related to the interatomic vibrations in the molecules or crystals. Infrared measurements, therefore, have definite...

W. M. Tuddenham; J. D. Stephens

1971-01-01T23:59:59.000Z

80

Infrared Audit  

Science Journals Connector (OSTI)

The infrared audit is a technique of investigation that allows ... a surface. Applications of thermography in the energy fields are very widespread, since through such ... . This chapter describes the application...

Giuliano DallO

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "geothermometry long-wave infrared" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Evaluation of infrared sensors for oil spill response operations. Final report, October 1994-June 1995  

SciTech Connect (OSTI)

During November 1994, the USCO conducted a field evaluation of several commercially available portable infrared (IR) sensors for their ability to detect oil on water at night. The evaluation was conducted over the natural oil seeps off the coast of Santa Barbara, CA. The portable sensors were operated from the open door of a Coast Guard HH-60J helicopter. Sensors evaluated included the Agema Thermovision 1000 and Texas Instruments LOCUSP operating in the long wave IR (LWIR) and the Cincinnati Electronics IRC-160ST and IRRIS-256ST operating in the medium wave IR (MWIR). The installed FLIR 2000 LWIR system provided a baseline reference of current CG IR capabilities.

Hover, G.L.; Plourde, J.V.

1995-06-01T23:59:59.000Z

82

Infrared floodlight  

DOE Patents [OSTI]

An infrared floodlight assembly designed particularly for security purposes and including a heat-conducting housing, a lens secured to the housing to provide a closure therefor, and a floodlight located within (and surrounded by) the housing. The floodlight combines the use of a tungsten halogen light source and dichroic hot and cold mirrors for directing substantially only infrared radiation toward the assembly's forward lens. Visible radiation is absorbed by the housing's interior wall(s) and, optionally, by a filter located between the floodlight and lens. An optional means may be used within the floodlight to reflect all forward radiation back toward the paraboloidal hot mirror or, alternatively, to reflect only visible radiation in this direction. The dichroic hot and cold mirrors preferably each comprise a glass substrate having multiple layers of titanium dioxide and silicon dioxide thereon.

Levin, Robert E. (S. Hamilton, MA); English, George J. (Reading, MA)

1986-08-05T23:59:59.000Z

83

Infrared Thermography (IRT) Working Group  

Broader source: Energy.gov (indexed) [DOE]

Infrared Thermography (IRT) Working Group Sco McWilliams U.S. Photovoltaic Manufacturing Consor;um (PVMC) Infrared Thermography Infrared Thermography (IRT) has been demonstrated...

84

Infrared microscope inspection apparatus  

DOE Patents [OSTI]

Apparatus and system for inspecting infrared transparents, such as an array of photovoltaic modules containing silicon solar cells, includes an infrared microscope, at least three sources of infrared light placed around and having their axes intersect the center of the object field and means for sending the reflected light through the microscope. The apparatus is adapted to be mounted on an X-Y translator positioned adjacent the object surface. 4 figs.

Forman, S.E.; Caunt, J.W.

1985-02-26T23:59:59.000Z

85

Infrared microscope inspection apparatus  

DOE Patents [OSTI]

Apparatus and system for inspecting infrared transparents, such as an array of photovoltaic modules containing silicon solar cells, includes an infrared microscope, at least three sources of infrared light placed around and having their axes intersect the center of the object field and means for sending the reflected light through the microscope. The apparatus is adapted to be mounted on an X-Y translator positioned adjacent the object surface.

Forman, Steven E. (Framingham, MA); Caunt, James W. (Concord, MA)

1985-02-26T23:59:59.000Z

86

Near infrared detectors for SNAP  

E-Print Network [OSTI]

Near Infrared Detectors for SNAP M. Schubnell a , N. Barron1k 1k and 2k 2k) near infrared detectors manufactured byas part of the near infrared R&D e?ort for SNAP (the Super-

2006-01-01T23:59:59.000Z

87

Integrated Chemical Geothermometry System for Geothermal Exploration  

Broader source: Energy.gov [DOE]

DOE Geothermal Peer Review 2010 - Presentation. Develop practical and reliable system to predict geothermal reservoir temperatures from integrated chemical analyses of spring and well fluids.

88

Evolution of infrared instrumentation  

SciTech Connect (OSTI)

The emergence of consumer-oriented infrared (IR) imaging devices is discussed. The discussion shows that the industry is presently dwindling because it does not fulfill expanding consumer needs. The features of future imaging devices are pointed out - smaller, easier to use, and easier to maintain. The challenge in the 1980s for the infrared manufacturing industry is to develop new technical innovations, smart IR imagining sensors, and consumer-oriented marketing, and produce a business/competitive industry. (MCW)

Sears, R.W.

1980-01-01T23:59:59.000Z

89

Infrared Thermography Laboratory  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Infrared Thermography Laboratory Infrared Thermography Laboratory The Infrared Thermography Laboratory (IRLab) conducts detailed laboratory experiments on the thermal performance of windows and other insulated systems. During a typical experiment, a specimen is placed between two environmental chambers that simulate a long, cold night during winter. Besides generating informative thermal images, the experiments collect several types of quantitative data with high spatial resolution that are useful for understanding subtle details in the thermal performance and for validating computer simulations of heat and fluid flows. Thermography experiments in the IRLab use an infrared imager to produce qualitative thermal images, or thermograms, that help provide a visual interpretation of how heat is flowing through the specimen. The infrared thermograms are also taken and postprocessed to extract numerical data to perform quantitative thermography that produces a database of the distribution of surface temperatures on the warm side of various specimen. A traversing system is also used to measure the distribution of air temperatures and velocities near the specimen. Research results are presented at various technical conferences -- see our schedule of upcoming conferences. Technical papers on infrared thermography are available for downloading. The IRLab contains a machine tool shop area that supports fabrication efforts in the Building Technologies Department. Other types of research, such as Non-Destructive Evaluation, are also conducted in the IRLab.

90

Infrared Thermography Laboratory  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Scientists measuring sample at IR Thermography lab Scientists measuring sample at IR Thermography lab Infrared Thermography Laboratory In the Infrared Thermography Laboratory (IRLab), researchers test the thermal performance of windows and other insulated systems. Test specimens are placed between chambers that simulate different climate conditions, including household room temperature versus extreme winter cold with high exterior wind speed. Using an infrared imaging system, the IRLab produces calibrated quantitative thermal images, or surface temperature maps, of the specimens in heat transfer experiments. This high resolution non-contact surface temperature data help researchers understand details of thermal performance and validate computer simulations of heat and fluid flow, as well as provide a powerful visualization of detailed thermal features in

91

Variable waveband infrared imager  

DOE Patents [OSTI]

A waveband imager includes an imaging pixel that utilizes photon tunneling with a thermally actuated bimorph structure to convert infrared radiation to visible radiation. Infrared radiation passes through a transparent substrate and is absorbed by a bimorph structure formed with a pixel plate. The absorption generates heat which deflects the bimorph structure and pixel plate towards the substrate and into an evanescent electric field generated by light propagating through the substrate. Penetration of the bimorph structure and pixel plate into the evanescent electric field allows a portion of the visible wavelengths propagating through the substrate to tunnel through the substrate, bimorph structure, and/or pixel plate as visible radiation that is proportional to the intensity of the incident infrared radiation. This converted visible radiation may be superimposed over visible wavelengths passed through the imaging pixel.

Hunter, Scott R.

2013-06-11T23:59:59.000Z

92

Infrared source test  

SciTech Connect (OSTI)

The purpose of the Infrared Source Test (IRST) is to demonstrate the ability to track a ground target with an infrared sensor from an airplane. The system is being developed within the Advance Technology Program`s Theater Missile Defense/Unmanned Aerial Vehicle (UAV) section. The IRST payload consists of an Amber Radiance 1 infrared camera system, a computer, a gimbaled mirror, and a hard disk. The processor is a custom R3000 CPU board made by Risq Modular Systems, Inc. for LLNL. The board has ethernet, SCSI, parallel I/O, and serial ports, a DMA channel, a video (frame buffer) interface, and eight MBytes of main memory. The real-time operating system VxWorks has been ported to the processor. The application code is written in C on a host SUN 4 UNIX workstation. The IRST is the result of a combined effort by physicists, electrical and mechanical engineers, and computer scientists.

Ott, L.

1994-11-15T23:59:59.000Z

93

Solar Infrared Photometer  

Science Journals Connector (OSTI)

A sun photometer which operates at five wavelengths in the near infrared between 1.0 and 4.0 ?m has been developed. The instrument is a manually operated, fitter wheel design and has principal applications for atmospheric aerosol studies. The ...

J. D. Spinhirne; M. G. Strange; L. R. Blaine

1985-06-01T23:59:59.000Z

94

Infrared Thermometer (IRT) Handbook  

SciTech Connect (OSTI)

The Infrared Thermometer (IRT) is a ground-based radiation pyrometer that provides measurements of the equivalent blackbody brightness temperature of the scene in its field of view. The downwelling version has a narrow field of view for measuring sky temperature and for detecting clouds. The upwelling version has a wide field of view for measuring the narrowband radiating temperature of the ground surface.

VR Morris

2006-10-30T23:59:59.000Z

95

Infrared radiation: Herschel revisited  

Science Journals Connector (OSTI)

The year 2000 marks the 200th anniversary of Herschels discovery of infrared radiation. Using a car light in place of the Sun and a liquid crystal sheet instead of thermometers the experiment is an effective classroom demonstration of invisible light.

Erin E. Pursell; Richard Kozlowski

2000-01-01T23:59:59.000Z

96

Infrared Basics | Open Energy Information  

Open Energy Info (EERE)

Infrared Basics Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: Infrared Basics Author Protherm Published Publisher Not Provided, 2013 DOI Not Provided...

97

Quantitative nondestructive testing using Infrared Thermography  

E-Print Network [OSTI]

turbine blade . . . . . . . . . . FLIR TM A320G InfraredTable 1.1: Specifications of the FLIR TM A320G InfraredInfrared Camera: A FLIR TM A320G Infrared camera was used

Manohar, Arun

2012-01-01T23:59:59.000Z

98

Stabilization, Injection and Control of Quantum Cascade Lasers, and Their Appli-cation to Chemical Sensing in the Infrared  

SciTech Connect (OSTI)

Quantum cascade lasers (QCLs) are a relatively new type of semiconductor laser operating in the mid- to long-wave infrared. These monopolar multilayered quantum well structures can be fabricated to operate anywhere between 3.5 microns and 20 microns, which includes the molecular fingerprint region of the in-frared. This makes them an ideal choice for infrared chemical sensing, a topic of great interest at present. Frequency stabilization and injection locking increase the utility of QCLs. We present results of locking quantum cascade lasers to optical cavities, achieving relative linewidths down to 5.6 Hz. We report injec-tion locking of one distributed feedback grating QCL with light from a similar QCL, demonstrating capture ranges of up to 500 MHz, and suppression of amplitude modulation by up to 49 dB. We also present various cavity-enhanced chemical sensors employing the frequency stabilization techniques developed, in-cluding the resonant sideband technique known as Nice-Ohms. Sensitivities of 9.7 x 10-11 cm-1 Hz-1/2 have been achieved in nitrous oxide.

Taubman, Matthew S.; Myers, Tanya L.; Cannon, Bret D.; Williams, Richard M.

2004-12-01T23:59:59.000Z

99

Micropolarizing device for long wavelength infrared polarization imaging.  

SciTech Connect (OSTI)

The goal of this project is to fabricate a four-state pixelated subwavelength optical device that enables mid-wave infrared (MWIR) or long-wave infrared (LWIR) snapshot polarimetric imaging. The polarization information can help to classify imaged materials and identify objects of interest for numerous remote sensing and military applications. While traditional, sequential polarimetric imaging produces scenes with polarization information through a series of assembled images, snapshot polarimetric imaging collects the spatial distribution of all four Stokes parameters simultaneously. In this way any noise due to scene movement from one frame to the next is eliminated. We fabricated several arrays of subwavelength components for MWIR polarization imaging applications. Each pixel unit of the array consists of four elements. These elements are micropolarizers with three or four different polarizing axis orientations. The fourth element sometimes has a micro birefringent waveplate on the top of one of the micropolarizers. The linear micropolarizers were fabricated by patterning nano-scale metallic grids on a transparent substrate. A large area birefringent waveplate was fabricated by deeply etching a subwavelength structure into a dielectric substrate. The principle of making linear micropolarizers for long wavelengths is based upon strong anisotropic absorption of light in the nano-metallic grid structures. The nano-metallic grid structures are patterned with different orientations; therefore, the micropolarizers have different polarization axes. The birefringent waveplate is a deeply etched dielectric one-dimensional subwavelength grating; therefore two orthogonally polarized waves have different phase delays. Finally, in this project, we investigated the near field and diffractive effects of the subwavelength element apertures upon detection. The fabricated pixelated polarizers had a measured extinction ratios larger than 100:1 for pixel sizes in the order of 15 {micro}m by 15 {micro}m that exceed by 7 times previously reported devices. The fabricated birefringent diffractive waveplates had a total variation of phase delay rms of 9.41 degrees with an average delay of 80.6 degrees across the MWIR spectral region. We found that diffraction effects change the requirement for separation between focal plane arrays (FPA) micropolarizer arrays and birefringent waveplates arrays, originally in the order of hundreds of microns (which are the typical substrate thickness) to a few microns or less. This new requirement leads us to propose new approaches to fabricate these devices.

Wendt, Joel Robert; Carter, Tony Ray; Samora, Sally; Cruz-Cabrera, Alvaro Augusto; Vawter, Gregory Allen; Kemme, Shanalyn A.; Alford, Charles Fred; Boye, Robert R.; Smith, Jody Lynn

2006-11-01T23:59:59.000Z

100

Frequency selective infrared sensors  

DOE Patents [OSTI]

A frequency selective infrared (IR) photodetector having a predetermined frequency band. The exemplary frequency selective photodetector includes: a dielectric IR absorber having a first surface and a second surface substantially parallel to the first surface; an electrode electrically coupled to the first surface of the dielectric IR absorber; and a frequency selective surface plasmonic (FSSP) structure formed on the second surface of the dielectric IR absorber. The FSSP structure is designed to selectively transmit radiation in the predetermined frequency band that is incident on the FSSP structure substantially independent of the angle of incidence of the incident radiation on the FSSP structure.

Davids, Paul; Peters, David W

2013-05-28T23:59:59.000Z

Note: This page contains sample records for the topic "geothermometry long-wave infrared" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Frequency selective infrared sensors  

SciTech Connect (OSTI)

A frequency selective infrared (IR) photodetector having a predetermined frequency band. The exemplary frequency selective photodetector includes: a dielectric IR absorber having a first surface and a second surface substantially parallel to the first surface; an electrode electrically coupled to the first surface of the dielectric IR absorber; and a frequency selective surface plasmonic (FSSP) structure formed on the second surface of the dielectric IR absorber. The FSSP structure is designed to selectively transmit radiation in the predetermined frequency band that is incident on the FSSP structure substantially independent of the angle of incidence of the incident radiation on the FSSP structure.

Davids, Paul; Peters, David W

2014-11-25T23:59:59.000Z

102

Astronomy: Green Light for Infrared  

Science Journals Connector (OSTI)

... THE new branch of astronomy based on the observation of celestial objects in infrared light has received a significant boost ... boost from the Science Research Council in the form of a grant to the infrared astronomy group at Imperial College. Although the grant of just over 27,000 is modest ...

Our Astronomy Correspondent

1969-01-18T23:59:59.000Z

103

The erosion resistance of infrared transparent materials  

Science Journals Connector (OSTI)

...research-article The erosion resistance of infrared transparent materials E.J. Coad C.S...discussed. erosion resistance|infrared materials|liquid impact...Keywords: erosion resistance; infrared materials; liquid impact...

1998-01-01T23:59:59.000Z

104

Lateral conduction infrared photodetector  

DOE Patents [OSTI]

A photodetector for detecting infrared light in a wavelength range of 3-25 .mu.m is disclosed. The photodetector has a mesa structure formed from semiconductor layers which include a type-II superlattice formed of alternating layers of InAs and In.sub.xGa.sub.1-xSb with 0.ltoreq.x.ltoreq.0.5. Impurity doped regions are formed on sidewalls of the mesa structure to provide for a lateral conduction of photo-generated carriers which can provide an increased carrier mobility and a reduced surface recombination. An optional bias electrode can be used in the photodetector to control and vary a cut-off wavelength or a depletion width therein. The photodetector can be formed as a single-color or multi-color device, and can also be used to form a focal plane array which is compatible with conventional read-out integrated circuits.

Kim, Jin K. (Albuquerque, NM); Carroll, Malcolm S. (Albuquerque, NM)

2011-09-20T23:59:59.000Z

105

Probing Organic Transistors with Infrared Beams  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Probing Organic Transistors with Infrared Beams Probing Organic Transistors with Infrared Beams Print Wednesday, 26 July 2006 00:00 Silicon-based transistors are well-understood,...

106

Forward looking infrared | Open Energy Information  

Open Energy Info (EERE)

looking infrared Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: Forward looking infrared Author Wikipedia Published Publisher Not Provided, 2013 DOI...

107

High-power parametric conversion from near-infrared to short-wave infrared  

E-Print Network [OSTI]

High-power parametric conversion from near-infrared to short-wave infrared Adrien Billat,1,* Steevy.billat@epfl.ch Abstract: We report the design of an all-fiber continuous wave Short-Wave Infrared source capable to output.4370) Nonlinear optics, fibers; (140.3070) Infrared and far-infrared lasers. References and links 1. M. N

Dalang, Robert C.

108

Lattice Simulations and Infrared Conformality  

DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

We examine several recent lattice-simulation data sets, asking whether they are consistent with infrared conformality. We observe, in particular, that for an SU(3) gauge theory with 12 Dirac fermions in the fundamental representation, recent simulation data can be described assuming infrared conformality. Lattice simulations include a fermion mass m which is then extrapolated to zero, and we note that this data can be fit by a small-m expansion, allowing a controlled extrapolation. We also note that the conformal hypothesis does not work well for two theories that are known or expected to be confining and chirally broken, and that it does work well for another theory expected to be infrared conformal.

Appelquist, Thomas; Fleming, George T.; Lin, Meifeng; Neil, Ethan T.; Schaich, David A.

2011-09-01T23:59:59.000Z

109

Intrinsic near-infrared spectroscopic markers of breast tumors  

E-Print Network [OSTI]

cycle on the red and near-infrared optical properties of thecancer imaging using near-infrared optical measurements andet al. / Intrinsic near-infrared spectroscopic markers of

Kukreti, Shwayta; Cerussi, Albert; Tromberg, Bruce; Gratton, Enrico

2008-01-01T23:59:59.000Z

110

Millimeter and Near-Infrared Observations of Neptune's Atmospheric Dynamics  

E-Print Network [OSTI]

B Near-Infrared Radiative Transfer Model B.15 Near-Infrared Observations of Neptunes Clouds with the133 6.2 Near-infrared spectroscopy . . . . . .

Cook, Statia Honora Luszcz

2012-01-01T23:59:59.000Z

111

AKARI NEAR-INFRARED SPECTROSCOPY OF LUMINOUS INFRARED GALAXIES  

SciTech Connect (OSTI)

We present the AKARI near-infrared (NIR; 2.5-5 {mu}m) spectroscopic study of 36 (ultra)luminous infrared galaxies ((U)LIRGs) at z = 0.01-0.4. We measure the NIR spectral features including the strengths of 3.3 {mu}m polycyclic aromatic hydrocarbon emission and hydrogen recombination lines (Br{alpha} and Br{beta}), optical depths at 3.1 and 3.4 {mu}m, and NIR continuum slope. These spectral features are used to identify optically elusive, buried active galactic nuclei (AGNs). We find that half of the (U)LIRGs optically classified as non-Seyferts show AGN signatures in their NIR spectra. Using a combined sample of (U)LIRGs with NIR spectra in the literature, we measure the contribution of buried AGNs to the infrared luminosity from the spectral energy distribution fitting to the IRAS photometry. The contribution of these buried AGNs to the infrared luminosity is 5%-10%, smaller than the typical AGN contribution of (U)LIRGs including Seyfert galaxies (10%-40%). We show that NIR continuum slopes correlate well with WISE [3.4]-[4.6] colors, which would be useful for identifying a large number of buried AGNs using the WISE data.

Lee, Jong Chul; Lee, Myung Gyoon [Astronomy Program, Department of Physics and Astronomy, Seoul National University, Seoul 151-742 (Korea, Republic of); Hwang, Ho Seong [CEA Saclay/Service d'Astrophysique, F-91191 Gif-sur-Yvette (France); Kim, Minjin; Lee, Joon Hyeop, E-mail: mglee@astro.snu.ac.kr, E-mail: jclee@kasi.re.kr, E-mail: mkim@kasi.re.kr, E-mail: jhl@kasi.re.kr, E-mail: hhwang@cfa.harvard.edu [Korea Astronomy and Space Science Institute, Daejeon 305-348 (Korea, Republic of)

2012-09-01T23:59:59.000Z

112

Astronomy: Bright Future for Infrared  

Science Journals Connector (OSTI)

... ALTHOUGH the prediction of what is likely to happen in astronomy in the future is a hazardous undertaking just now, it seems increasingly obvious in ... is a hazardous undertaking just now, it seems increasingly obvious in astronomical circles that infrared astronomy is going to be an important field of investigation during the next few years. ...

Our Astronomy Correspondent

1968-09-21T23:59:59.000Z

113

Infrared emitting device and method  

DOE Patents [OSTI]

An infrared emitting device and method. The infrared emitting device comprises a III-V compound semiconductor substrate upon which are grown a quantum-well active region having a plurality of quantum-well layers formed of a ternary alloy comprising InAsSb sandwiched between barrier layers formed of a ternary alloy having a smaller lattice constant and a larger energy bandgap than the quantum-well layers. The quantum-well layers are preferably compressively strained to increase the threshold energy for Auger recombination; and a method is provided for determining the preferred thickness for the quantum-well layers. Embodiments of the present invention are described having at least one cladding layer to increase the optical and carrier confinement in the active region, and to provide for waveguiding of the light generated within the active region. Examples have been set forth showing embodiments of the present invention as surface- and edge-emitting light emitting diodes (LEDs), an optically-pumped semiconductor laser, and an electrically-injected semiconductor diode laser. The light emission from each of the infrared emitting devices of the present invention is in the midwave infrared region of the spectrum from about 2 to 6 microns.

Kurtz, Steven R. (Albuquerque, NM); Biefeld, Robert M. (Albuquerque, NM); Dawson, L. Ralph (Albuquerque, NM); Howard, Arnold J. (Albuquerque, NM); Baucom, Kevin C. (Albuquerque, NM)

1997-01-01T23:59:59.000Z

114

INSTRUMENTATION FOR FAR INFRARED SPECTROSCOPY.  

SciTech Connect (OSTI)

Fourier transform spectrometers developed in three distinct spectral regions in the early 1960s. Pierre Connes and his coworkers in France developed remarkably sophisticated step-scan interferometers that permitted near-infrared spectra to be measured with a resolution of better than 0.0 1 cm{sup {minus}1}. These instruments may be considered the forerunners of the step-scan interferometers made by Bruker, Bio-Rad (Cambridge, MA, USA) and Nicolet although their principal application was in the field of astronomy. Low-resolution rapid-scanning interferometers were developed by Larry Mertz and his colleagues at Block Engineering (Cambridge, MA, USA) for remote sensing. Nonetheless, the FT-IR spectrometers that are so prevalent in chemical laboratories today are direct descendants of these instruments. The interferometers that were developed for far-infrared spectrometry in Gebbie's laboratory ,have had no commercial counterparts for at least 15 years. However, it could be argued that these instruments did as much to demonstrate the power of Fourier transform spectroscopy to the chemical community as any of the instruments developed for mid- and near-infrared spectrometry. Their performance was every bit as good as today's rapid-scanning interferometers. However, the market for these instruments is so small today that it has proved more lucrative to modify rapid-scanning interferometers that were originally designed for mid-infrared spectrometry than to compete with these instruments with slow continuous scan or step-scan interferometers.

GRIFFITHS, P.R.; HOMES, C.

2001-05-04T23:59:59.000Z

115

Industrial Use of Infrared Inspections  

E-Print Network [OSTI]

, but in the final analysis it comes down to the fact that the industrial management responsible for the operations and production budgets did not, and in many cases, still does not understand the economic benefits to the company that infrared industrial inspections...

Duch, A. A.

1979-01-01T23:59:59.000Z

116

Solar and Infrared Radiation Station (SIRS) Handbook  

SciTech Connect (OSTI)

The Solar Infrared Radiation Station (SIRS) provides continuous measurements of broadband shortwave (solar) and longwave (atmospheric or infrared) irradiances for downwelling and upwelling components. The following six irradiance measurements are collected from a network of stations to help determine the total radiative flux exchange within the Atmospheric Radiation Measurement (ARM) Southern Great Plains (SGP) Climate Research Facility: Direct normal shortwave (solar beam) Diffuse horizontal shortwave (sky) Global horizontal shortwave (total hemispheric) Upwelling shortwave (reflected) Downwelling longwave (atmospheric infrared) Upwelling longwave (surface infrared)

Stoffel, T

2005-07-01T23:59:59.000Z

117

Multiphoton microscopy with near infrared contrast  

E-Print Network [OSTI]

Multiphoton microscopy with near infrared contrast agents Siavash Yazdanfar,a, * Chulmin Joo,a Chun limited to the visible spectrum. We introduce a paradigm for MPM of near-infrared NIR fluorescent Engineers. DOI: 10.1117/1.3420209 Keywords: two-photon microscopy; ultrafast fiber lasers; near-infrared

Larson-Prior, Linda

118

Definition: Near Infrared Surveys | Open Energy Information  

Open Energy Info (EERE)

Near Infrared Surveys Near Infrared Surveys Jump to: navigation, search Dictionary.png Near Infrared Surveys Near infrared surveys refer to multi- and hyperspectral data collected in the region just outside wavelengths detectable by the human eye. Near infrared wavelengths are generally considered to be between approximately 0.75-1.4 micrometers. View on Wikipedia Wikipedia Definition Infrared (IR) light is electromagnetic radiation with longer wavelengths than those of visible light, extending from the nominal red edge of the visible spectrum at 700 nanometres (nm) to 1 mm. This range of wavelengths corresponds to a frequency range of approximately 430 THz down to 300 GHz, and includes most of the thermal radiation emitted by objects near room temperature. Infrared light is emitted or absorbed by molecules

119

Infrared emitting device and method  

DOE Patents [OSTI]

The infrared emitting device comprises a III-V compound semiconductor substrate upon which are grown a quantum-well active region having a plurality of quantum-well layers formed of a ternary alloy comprising InAsSb sandwiched between barrier layers formed of a ternary alloy having a smaller lattice constant and a larger energy bandgap than the quantum-well layers. The quantum-well layers are preferably compressively strained to increase the threshold energy for Auger recombination; and a method is provided for determining the preferred thickness for the quantum-well layers. Embodiments of the present invention are described having at least one cladding layer to increase the optical and carrier confinement in the active region, and to provide for waveguiding of the light generated within the active region. Examples have been set forth showing embodiments of the present invention as surface- and edge-emitting light emitting diodes (LEDs), an optically-pumped semiconductor laser, and an electrically-injected semiconductor diode laser. The light emission from each of the infrared emitting devices of the present invention is in the midwave infrared region of the spectrum from about 2 to 6 microns. 8 figs.

Kurtz, S.R.; Biefeld, R.M.; Dawson, L.R.; Howard, A.J.; Baucom, K.C.

1997-04-29T23:59:59.000Z

120

Nanotechnology: a successive industrial revolution of Schumpeter's long wave theory  

Science Journals Connector (OSTI)

This paper is concerned with the strategies on research management and technology policies of nanotechnology. Nanotechnology is now a science and technology (S&T) priority area for many Asian countries with governments making efforts to put the results of nanotechnology development to commercialisation. The national policy for nanotechnology is to change the existing technology system and bring about an industrial revolution (the nanorevolution). Under the pressure of competition, the key to success lies in how each country can find the right application on which to focus in order to survive through international competition. This paper reviews nanotechnology research activities in some Asian countries exhibiting an enthusiastic approach in undertaking nanotechnology initiatives ?? Thailand, Malaysia, Singapore, China, South Korea, Taiwan, and Japan. The paper finally recommends policy implications to encourage national innovativeness and effective commercialisation.

Jarunee Wonglimpiyarat

2004-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "geothermometry long-wave infrared" from the National Library of EnergyBeta (NLEBeta).
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121

Turbulent Flow and Transport Modeling by Long Waves and Currents  

E-Print Network [OSTI]

mixing simulation is developed based on the ?-coordinate grid system. In Chapter VI, the conclusions of this study are presented. Also included are suggestions for the future and further studies. 7 CHAPTER II BOUSSINESQ EQUATIONS FOR WEAKLY... mixing simulation is developed based on the ?-coordinate grid system. In Chapter VI, the conclusions of this study are presented. Also included are suggestions for the future and further studies. 7 CHAPTER II BOUSSINESQ EQUATIONS FOR WEAKLY...

Kim, Dae Hong

2010-10-12T23:59:59.000Z

122

Long Wave/Short Wave Resonance in Equatorial Waves  

Science Journals Connector (OSTI)

It is shown that resonant coupling between ultra long equatorial Rossby waves and packets of either short Rossby or short westward-traveling gravity waves is possible. Simple analytic formulas give the discrete value of the packet wave number k, ...

John P. Boyd

1983-03-01T23:59:59.000Z

123

Geothermometry At Long Valley Caldera Geothermal Area (Mariner...  

Open Energy Info (EERE)

California Michael L. Sorey, Gene A. Suemnicht, Neil C. Sturchio, Gregg A. Nordquist (December 1991) New Evidence On The Hydrothermal System In Long Valley Caldera, California,...

124

Geothermometry At Lassen Volcanic National Park Area (Janik ...  

Open Energy Info (EERE)

but are within the 220-240 degrees C range calculated using cation, sulfate-water isotope, and mixing model geothermometers (Muffler et al., 1982). References (Unknown)...

125

Geothermometry At Long Valley Caldera Geothermal Area (Farrar...  

Open Energy Info (EERE)

each water sample were measured in the field within minutes following collection. Field processing of water samples was conducted in accordance with standard USGS protocols...

126

Geothermometry At Long Valley Caldera Geothermal Area (Sorey...  

Open Energy Info (EERE)

studies, and seem to prove useful in most cases (Flexser, 1991; Goff et al., 1991; Smith and Suemnicht, 1991). Results from these studies are also summarized in Sorey et al....

127

Geothermometry At Roosevelt Hot Springs Geothermal Area (Ward...  

Open Energy Info (EERE)

Area. References S. H. Ward, W. T. Parry, W. P. Nash, W. R. Sill, K. L. Cook, R. B. Smith, D. S. Chapman, F. H. Brown, J. A. Whelan, J. R. Bowman (1978) A Summary of the...

128

Geothermometry At Lassen Volcanic National Park Area (Thompson...  

Open Energy Info (EERE)

Usefulness not indicated DOE-funding Unknown References J. Michael Thompson (1985) Chemistry Of Thermal And Nonthermal Springs In The Vicinity Of Lassen Volcanic National Park...

129

Isotope Geothermometry At Lightning Dock Geothermal Area (Witcher...  

Open Energy Info (EERE)

Number DE-FC07-00AL66977 Notes This project deepened a well and took 4 samples from wells around the Lightning Docks KGRA and performed extensive chamical and isotope analysis...

130

Geothermometry At Mt St Helens Area (Shevenell & Goff, 1995)...  

Open Energy Info (EERE)

Fraser Goff (1995) Evolution Of Hydrothermal Waters At Mount St Helens, Washington, Usa Additional References Retrieved from "http:en.openei.orgwindex.php?titleGeothermom...

131

Infrared emission spectroscopic study of brucite  

Science Journals Connector (OSTI)

Both infrared absorption and emission spectroscopy have been used to assign the vibrational bands of brucite. IR absorption bands are observed in the hydroxyl stretching region at 3698 and 3248 cm?1. Low frequency bands are observed at 627, 565 and 440 cm?1. Naturally occurring brucites are contaminated with other magnesium minerals which are easily identified by the infrared spectra. Infrared emission bands are observed at 3686, 3571, 3251 and 2940 cm?1. The intensity of these bands decreases upon thermal treatment corresponding to the dehydration and dehydroxylation of the brucite. Low frequency infrared emission bands are observed at 876, 706, 622 and 559 cm?1. Dehydroxylation of the brucite may be followed by the loss of intensity of the hydroxyl vibrations during thermal treatment. Importantly infrared emission spectroscopy enables the study of the dehydroxylation in situ at the elevated temperatures. Infrared emission also confirms the absorption bands assigned to brucite.

Ray L Frost; J.Theo Kloprogge

1999-01-01T23:59:59.000Z

132

RIJKSUNIVERSITEIT GRONINGEN Mid-Infrared Spectroscopy of  

E-Print Network [OSTI]

RIJKSUNIVERSITEIT GRONINGEN Mid-Infrared Spectroscopy of Dusty Galactic Nuclei PROEFSCHRIFT ter verkrijging van het doctoraat in de Wiskunde en Natuurwetenschappen aan de Rijksuniversiteit Groningen op

Spoon, Henrik

133

Probing Organic Transistors with Infrared Beams  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Probing Organic Transistors with Infrared Beams Print Silicon-based transistors are well-understood, basic components of contemporary electronic technology. In contrast, there is...

134

Near-infrared sideband generation induced by intense far-infrared radiation in GaAs quantum wells  

E-Print Network [OSTI]

Near-infrared sideband generation induced by intense far-infrared radiation in GaAs quantum wells J illuminated with near-infrared NIR radiation at frequency nir and intense far-infrared FIR radiation from and quenching of photoluminescence PL .8,9 The nonlinear interaction of FIR and near-infrared NIR radiation

Kono, Junichiro

135

STh3M.6.pdf CLEO:2014 2014 OSA Silicon Chip Based Near-Infrared and Mid-Infrared Optical  

E-Print Network [OSTI]

STh3M.6.pdf CLEO:2014 © 2014 OSA Silicon Chip Based Near-Infrared and Mid-Infrared Optical near-infrared and mid-infrared with detection limit down to 1ppb. Strip waveguide, slot waveguide and PC-based chip integrated optical absorption spectroscopy devices are compared in near-infrared

Chen, Ray

136

Astronomy: Lowering Sights in the Infrared  

Science Journals Connector (OSTI)

... Imperial College, London, into a fully-equipped instrument has now been passed by the Astronomy Policy and Grants Committee of the Science Research Council. In this way an infrared ... Science Research Council. In this way an infrared telescope that is able to do valuable astronomy from a site with good seeing conditions could be available to British astronomers by next ...

Our Astronomy Correspondent

1970-06-13T23:59:59.000Z

137

A CATALOG OF GALACTIC INFRARED CARBON STARS  

SciTech Connect (OSTI)

We collected almost all of the Galactic infrared carbon stars (IRCSs) from literature published up to the present to organize a catalog of 974 Galactic IRCSs in this paper. Some of their photometric properties in the near-, mid-, and far-infrared are discussed.

Chen, P. S. [National Astronomical Observatories/Yunnan Observatory and Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011 (China); Yang, X. H., E-mail: iraspsc@yahoo.com.cn, E-mail: yangxh@cqu.edu.cn [Department of Physics, Chongqing University, Chongqing 400044 (China)

2012-02-15T23:59:59.000Z

138

Definition: Multispectral Thermal Infrared | Open Energy Information  

Open Energy Info (EERE)

Infrared Infrared Jump to: navigation, search Dictionary.png Multispectral Thermal Infrared This wavelength range senses heat energy from the Earth's surface. It can be used to sense surface temperature, including anomalies associated with active geothermal or volcanic systems. Both multispectral and hyperspectral remote sensing observations are available. This range can also be used to map mineralogy associate with common rock-forming silicates.[1][2] View on Wikipedia Wikipedia Definition References ↑ http://en.wikipedia.org/wiki/Thermal_infrared_spectroscopy ↑ http://asterweb.jpl.nasa.gov/ Ret LikeLike UnlikeLike You like this.Sign Up to see what your friends like. rieved from "http://en.openei.org/w/index.php?title=Definition:Multispectral_Thermal_Infrared&oldid=601561

139

Infrared spectroscopy of ionic clusters  

SciTech Connect (OSTI)

This thesis describes new experiments wherein the infrared vibrational predissociation spectra of a number of mass-selected ionic cluster systems have been obtained and analyzed in the 2600 to 4000 cm{sup {minus}1} region. The species studied include: the hydrated hydronium ions, H{sub 3}O{sup +} (H{sub 2}O){sub 3 {minus}10}, ammoniated ammonium ions, NH{sub 4}{sup +}(NH{sub 3}){sub 1 {minus}10} and cluster ions involving both water and ammonia around an ammonium ion core, (mixed clusters) NH{sub 4}{sup +}(NH{sub 3}){sub n}(H{sub 2}O){sub m} (n+m=4). In each case, the spectra reveal well resolved structures that can be assigned to transitions arising from the vibrational motions of both the ion core of the clusters and the surrounding neutral solvent molecules. 154 refs., 19 figs., 8 tabs.

Price, J.M. (California Univ., Berkeley, CA (USA). Dept. of Chemistry Lawrence Berkeley Lab., CA (USA))

1990-11-01T23:59:59.000Z

140

Polymer-Ceramic MEMS Bimorphs as Thermal Infrared Sensors.  

E-Print Network [OSTI]

??Thermal infrared detectors based on MEMS bimorph beams have the potential to exceed the performance of current uncooled thermal infrared cameras both in terms of (more)

Warren, Clinton Gregory

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "geothermometry long-wave infrared" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

High Throughput Operando Studies using Fourier Transform Infrared...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Throughput Operando Studies using Fourier Transform Infrared Imaging and Raman Spectroscopy. High Throughput Operando Studies using Fourier Transform Infrared Imaging and Raman...

142

An Infrared Spectral Library for Atmospheric Environmental Monitoring...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Library for Atmospheric Environmental Monitoring. An Infrared Spectral Library for Atmospheric Environmental Monitoring. Abstract: Infrared (IR) spectroscopy is one of several...

143

NDE of Concrete Structures Strengthened with FRP Using Infrared Thermography  

E-Print Network [OSTI]

NDE of Concrete Structures Strengthened with FRP Using Infrared Thermography Monica A. STARNES that infrared thermography is a promising nondestructive evaluation (NDE) method considering testing speed

Entekhabi, Dara

144

Molecular Hydrogen in Infrared Cirrus  

E-Print Network [OSTI]

We combine data from our recent FUSE survey of interstellar molecular hydrogen absorption toward 50 high-latitude AGN with COBE-corrected IRAS 100 micron emission maps to study the correlation of infrared cirrus with H2. A plot of the H2 column density vs. IR cirrus intensity shows the same transition in molecular fraction, f_H2, as seen with total hydrogen column density, N_H. This transition is usually attributed to H2 self-shielding, and it suggests that many diffuse cirrus clouds contain H2 in significant fractions, f_H2 = 1-30%. These clouds cover approximately 50% of the northern sky at latitudes b > 30 degrees, at temperature-corrected 100 micron intensities D_100 > 1.5 MJy/sr. The sheetlike cirrus clouds, with hydrogen densities n_H > 30 cm^-3, may be compressed by dynamical processes at the disk-halo interface, and they are conducive to H2 formation on grain surfaces. Exploiting the correlation between N(H2) and 100 micron intensity, we estimate that cirrus clouds at b > 30 contain approximately 3000 M_sun in H2. Extrapolated over the inner Milky Way, the cirrus may contain 10^7 M_sun of H2 and 10^8 M_sun in total gas mass. If elevated to 100 pc, their gravitational potential energy is ~10^53 erg.

Kristen Gillmon; J. Michael Shull

2005-07-25T23:59:59.000Z

145

Near Infrared Surveys | Open Energy Information  

Open Energy Info (EERE)

Near Infrared Surveys Near Infrared Surveys (Redirected from Thermal And-Or Near Infrared) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Near Infrared Surveys Details Activities (18) Areas (14) Regions (1) NEPA(0) Exploration Technique Information Exploration Group: Remote Sensing Techniques Exploration Sub Group: Passive Sensors Parent Exploration Technique: Passive Sensors Information Provided by Technique Lithology: Stratigraphic/Structural: Hydrological: Thermal: Cost Information Low-End Estimate (USD): 450.0045,000 centUSD 0.45 kUSD 4.5e-4 MUSD 4.5e-7 TUSD / sq. mile Median Estimate (USD): 800.0080,000 centUSD 0.8 kUSD 8.0e-4 MUSD 8.0e-7 TUSD / sq. mile High-End Estimate (USD): 1,350.00135,000 centUSD 1.35 kUSD 0.00135 MUSD 1.35e-6 TUSD / sq. mile

146

Synchrotron Infrared Unveils a Mysterious Microbial Community  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Synchrotron Infrared Unveils a Synchrotron Infrared Unveils a Mysterious Microbial Community Synchrotron Infrared Unveils a Mysterious Microbial Community Print Tuesday, 22 January 2013 00:00 A cold sulfur spring in Germany is the only place where archaea are known to dominate bacteria in a microbial community. How this unique community thrives and the lessons it may hold for understanding global carbon and sulfur cycles are beginning to emerge from research by the University of Regensburg's Christine Moissl-Eichinger and her colleagues, including Advanced Light Source guest Alex Probst. Crucial microbial biochemistry was done at Berkeley Lab by Hoi-Ying Holman, director of the Berkeley Synchrotron Infrared Structural Biology facility, and her staff at the ALS, and by Phylochip inventors Todd DeSantis and Gary Anderson.

147

Synthesis and characterization of infrared quantum dots  

E-Print Network [OSTI]

This thesis focuses on the development of synthetic methods to create application ready quantum dots (QDs) in the infrared for biological imaging and optoelectronic devices. I concentrated primarily on controlling the size ...

Harris, Daniel Kelly

2014-01-01T23:59:59.000Z

148

Applying near-infrared spectroscopy (nirs)  

E-Print Network [OSTI]

investigated. A recently developed optical imaging technique called near-infrared spectroscopy (NIRS) shows promise for being an acceptable alternative to invasive imaging techniques. NIRS measures correlates of neural activity by assessing hemoglobin...

Wruck, Eric Michael

2005-08-29T23:59:59.000Z

149

Characteristic evaluation of a near-infrared Fabry-Perot filter for the InfraRed Imaging Magnetograph (IRIM)  

E-Print Network [OSTI]

Characteristic evaluation of a near-infrared Fabry-P´erot filter for the InfraRed Imaging solar two-dimensional narrow-band spectro-polarimeter working in the near infrared from 1.0 µm to 1.7 µm, this paper outlines a set of methods to evaluate the near infrared Fabry-P´erot etalon. Two

150

Follow-Up Near-infrared Spectroscopy of Ultraluminous Infrared Galaxies observed by ISO  

E-Print Network [OSTI]

We present low resolution near-infrared spectroscopy of an unbiased sample of 24 ultraluminous infrared galaxies (ULIRGs), selected from samples previously observed spectroscopically in the mid-infrared with the Infrared Space Observatory (ISO). Qualitatively, the near-infrared spectra resemble those of starbursts. Only in one ULIRG, IRAS 04114-5117E, do we find spectroscopic evidence for AGN activity. The spectroscopic classification in the near-infrared is in very good agreement with the mid-infrared one. For a subset of our sample for which extinction corrections can be derived from Pa-alpha and Br-gamma, we find rather high Pa-alpha luminosities, in accordance with the powering source of these galaxies being star formation.[Fe] emission is strong in ULIRGs and may be linked to starburst and superwind activity. Additionally, our sample includes two unusual objects. The first, IRAS F00183-7111, exhibits extreme [Fe] emission and the second, IRAS F23578-5307, is according to our knowledge one of the most luminous infrared galaxies in H2 rotation-vibration emission.

H. Dannerbauer; D. Rigopoulou; D. Lutz; R. Genzel; E. Sturm; A. F. M. Moorwood

2005-08-17T23:59:59.000Z

151

Definition: Forward-Looking Infrared | Open Energy Information  

Open Energy Info (EERE)

Forward-Looking Infrared Forward-Looking Infrared Jump to: navigation, search Dictionary.png Forward-Looking Infrared Forward Looking InfraRed (FLIR) cameras flown from fixed-wing aircraft measure the amount of energy radiated in the infrared (7.5 - 13 micrometer) to detect detailed information on the land surface temperature distribution that might indicate areas of geothermal activity.[1] View on Wikipedia Wikipedia Definition Forward looking infrared (FLIR) cameras, typically used on military and civilian aircraft, use an imaging technology that senses infrared radiation. The sensors installed in forward-looking infrared cameras-as well as those of other thermal imaging cameras-use detection of infrared radiation, typically emitted from a heat source, to create a "picture"

152

Probing Organic Transistors with Infrared Beams  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Probing Organic Transistors with Infrared Beams Print Probing Organic Transistors with Infrared Beams Print Silicon-based transistors are well-understood, basic components of contemporary electronic technology. In contrast, there is growing need for the development of electronic devices based on organic polymer materials. Organic field-effect transistors (FETs) are ideal for special applications that require large areas, light weight, and structural flexibility. They also have the advantage of being easy to mass-produce at very low cost. However, even though this class of devices is finding a growing number of applications, electronic processes in organic materials are still not well understood. A group of researchers from the University of California and the ALS has succeeded in probing the intrinsic electronic properties of the charge carriers in organic FETs using infrared spectromicroscopy. The results of their study could help in the future development of sensors, large-area displays, and other plastic electronic components.

153

Near Infrared Surveys | Open Energy Information  

Open Energy Info (EERE)

Near Infrared Surveys Near Infrared Surveys Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Near Infrared Surveys Details Activities (18) Areas (14) Regions (1) NEPA(0) Exploration Technique Information Exploration Group: Remote Sensing Techniques Exploration Sub Group: Passive Sensors Parent Exploration Technique: Passive Sensors Information Provided by Technique Lithology: Stratigraphic/Structural: Hydrological: Thermal: Cost Information Low-End Estimate (USD): 450.0045,000 centUSD 0.45 kUSD 4.5e-4 MUSD 4.5e-7 TUSD / sq. mile Median Estimate (USD): 800.0080,000 centUSD 0.8 kUSD 8.0e-4 MUSD 8.0e-7 TUSD / sq. mile High-End Estimate (USD): 1,350.00135,000 centUSD 1.35 kUSD 0.00135 MUSD 1.35e-6 TUSD / sq. mile Time Required Low-End Estimate: 6 weeks0.115 years

154

High efficiency quasi-monochromatic infrared emitter  

SciTech Connect (OSTI)

Incandescent radiation sources are widely used as mid-infrared emitters owing to the lack of alternative for compact and low cost sources. A drawback of miniature hot systems such as membranes is their low efficiency, e.g., for battery powered systems. For targeted narrow-band applications such as gas spectroscopy, the efficiency is even lower. In this paper, we introduce design rules valid for very generic membranes demonstrating that their energy efficiency for use as incandescent infrared sources can be increased by two orders of magnitude.

Brucoli, Giovanni; Besbes, Mondher; Benisty, Henri, E-mail: henri.benisty@institutoptique.fr; Greffet, Jean-Jacques [Laboratoire Charles Fabry, UMR 8501, Institut dOptique, CNRS, Universit Paris-Sud 11, 2, Avenue Augustin Fresnel, 91127 Palaiseau Cedex (France); Bouchon, Patrick; Hadar, Riad [Office National dtudes et de Recherches Arospatiales, Chemin de la Hunire, 91761 Palaiseau (France)

2014-02-24T23:59:59.000Z

155

A Spitzer White Dwarf Infrared Survey  

E-Print Network [OSTI]

We present mid-infrared photometry of 124 white dwarf stars with Spitzer Space Telescope. Objects were observed simultaneously at 4.5 and 8.0um with sensitivities better than 1 mJy. This data can be used to test models of white dwarf atmospheres in a new wavelength regime, as well as to search for planetary companions and debris disks.

F. Mullally; Mukremin Kilic; William T. Reach; Marc J. Kuchner; Ted von Hippel; Adam Burrows; D. E. Winget

2006-11-17T23:59:59.000Z

156

A brief history of infrared astronomy  

Science Journals Connector (OSTI)

......Observatory For Infrared Astronomy) is a project funded by NASA and the German Space Agency DLR, to put a 2.5 m telescope into a Boeing 747-SP. SOFIA will have a set of observatory instruments for all astronomers to use, and is due to start flights in 2002......

Helen J Walker

2000-10-01T23:59:59.000Z

157

Infrared Dry-peeling Technology for Tomatoes  

E-Print Network [OSTI]

are neutralized and then discharged as wastewater. The high salinity of the wastewater from the peeling process, producing less wastewater and preserving product quality. Infrared drypeeling is expected to reduce: rkapoor@energy.state.ca.us Dr. Zhongli Pan University of California, Davis Phone: (510) 5595861

158

SiGeC Near Infrared Photodetectors  

E-Print Network [OSTI]

A near infrared waveguide photodetector in Si-based ternary Si???x??yGexCy alloy was demonstrated for 0.85~1.06 m wavelength fiber-optic interconnection system applications. Two sets of detectors with active absorption ...

Li, Baojun

159

Near-Infrared Spectroscopic Investigation of Water in Supercritical...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Infrared Spectroscopic Investigation of Water in Supercritical CO2 and the Effect of CaCl2. Near-Infrared Spectroscopic Investigation of Water in Supercritical CO2 and the Effect...

160

INFRARED THERMAL IMAGING OF AUTOMOBILES: Identification of Cold Start Vehicles  

E-Print Network [OSTI]

INFRARED THERMAL IMAGING OF AUTOMOBILES: Identification of Cold Start Vehicles Angela M. Monateri at the infrared image from an automobile. ·The camera was set up with a FEAT 3000 unit to compare emissions vs

Denver, University of

Note: This page contains sample records for the topic "geothermometry long-wave infrared" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Dirac Charge Dynamcs in Graphene by Infrared Spectroscopy  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Dirac Charge Dynamcs in Graphene by Infrared Spectroscopy Dirac Charge Dynamcs in Graphene by Infrared Spectroscopy Print Wednesday, 29 October 2008 00:00 Graphene-a single layer...

162

Matching of Infrared Emitters with Textiles For Improved Energy Utilization  

E-Print Network [OSTI]

the infrared absorptivity of fabrics over the wavelength spectrum of 0.7 to 25 microns (the range of operation of commercial infrared emitters). Since the operating ranges for several system components (detectors, beam splitters and sources) are much narrower...

Carr, W. W.; Williamson, V. A.; Johnson, M. R.; Do, B. T.

163

Transmissive infrared frequency selective surfaces and infrared antennas : final report for LDRD 105749.  

SciTech Connect (OSTI)

Plasmonic structures open up new opportunities in photonic devices, sometimes offering an alternate method to perform a function and sometimes offering capabilities not possible with standard optics. In this LDRD we successfully demonstrated metal coatings on optical surfaces that do not adversely affect the transmission of those surfaces at the design frequency. This technology could be applied as an RF noise blocking layer across an optical aperture or as a method to apply an electric field to an active electro-optic device without affecting optical performance. We also demonstrated thin optical absorbers using similar patterned surfaces. These infrared optical antennas show promise as a method to improve performance in mercury cadmium telluride detectors. Furthermore, these structures could be coupled with other components to lead to direct rectification of infrared radiation. This possibility leads to a new method for infrared detection and energy harvesting of infrared radiation.

Wendt, Joel Robert; Hadley, G. Ronald; Samora, Sally; Loui, Hung; Cruz-Cabrera, Alvaro Augusto; Davids, Paul; Kemme, Shanalyn A.; Basilio, Lorena I.; Johnson, William Arthur; Peters, David William

2009-09-01T23:59:59.000Z

164

Infrared Properties of Close Pairs of Galaxies  

E-Print Network [OSTI]

We discuss spectroscopy and infrared photometry for a complete sample of ~ 800 galaxies in close pairs objectively selected from the CfA2 redshift survey. We use 2MASS to compare near infrared color-color diagrams for our sample with the Nearby Field Galaxy Sample and with a set of IRAS flux-limited pairs from Surace et al. We construct a basic statistical model to explore the physical sources of the substantial differences among these samples. The model explains the spread of near infrared colors and is consistent with a picture where central star formation is triggered by the galaxy-galaxy interaction before a merger occurs. For 160 galaxies we report new, deep JHK photometry within our spectroscopic aperture and we use the combined spectroscopic and photometric data to explore the physical conditions in the central bursts. We find a set of objects with H-K >= 0.45 and with a large F(FIR)/F(H). We interpret the very red H-K colors as evidence for 600-1000 K dust within compact star-forming regions, perhaps similar to super-star clusters identified in individual well-studied interacting galaxies. The galaxies in our sample are candidate ``hidden'' bursts or, possibly, ``hidden'' AGN. Over the entire pair sample, both spectroscopic and photometric data show that the specific star formation rate decreases with the projected separation of the pair. The data suggest that the near infrared color-color diagram is also a function of the projected separation; all of the objects with central near infrared colors indicative of bursts of star formation lie at small projected separation.

Margaret J. Geller; Scott J. Kenyon; Elizabeth J. Barton; Thomas H. Jarrett; Lisa J. Kewley

2006-08-02T23:59:59.000Z

165

Efficient Synthesis and Properties of Novel Near-Infrared Electrochromic  

E-Print Network [OSTI]

Efficient Synthesis and Properties of Novel Near-Infrared Electrochromic Anthraquinone Imides@pku.edu.cn Received December 13, 2007 ABSTRACT An efficient synthesis of novel near-infrared electrochromic 6 are electrochromic and absorb intensely in the near-infrared range of 700-1600 nm upon electrochemical reduction

Wan, Xin-hua

166

Near-infrared spectroscopy of HD the barrier to linearity  

E-Print Network [OSTI]

Near-infrared spectroscopy of HD 3 above the barrier to linearity BY JENNIFER L. GOTTFRIED, transitions of HC 3 above the barrier to linearity have been observed. A highly sensitive near-infrared-adiabatic and radiative corrections is revealed. Keywords: HD 3 ; near-infrared spectroscopy; barrier to linearity 1

Oka, Takeshi

167

Can Gender Be Predicted from Near-Infrared Face Images?  

E-Print Network [OSTI]

Can Gender Be Predicted from Near-Infrared Face Images? Arun Ross and Cunjian Chen Lane Department spectrum (VIS). We explore the possibility of predicting gender from face images ac- quired in the near-infrared cross-spectral gender prediction. Keywords: Biometrics, Faces, Gender, Near-Infrared, Cross-Spectral. 1

Ross, Arun Abraham

168

Multicontrast photoacoustic in vivo imaging using near-infrared fluorescent  

E-Print Network [OSTI]

Multicontrast photoacoustic in vivo imaging using near-infrared fluorescent proteins Arie Krumholz1 the application of two spectrally distinct near-infrared fluorescent proteins, iRFP670 and iRFP720, engineered-tissue PAT, probes absorbing in the near-infrared (NIR) spectral range are desirable. In the NIR optical

Verkhusha, Vladislav V.

169

Near-infrared light scattering by particles in coastal waters  

E-Print Network [OSTI]

Near-infrared light scattering by particles in coastal waters David Doxaran* , Marcel Babin extend over the near-infrared spectral region to up to 870 nm. The measurements were conducted in three in the near-infrared very closely matched a - spectral dependence, which is expected when the particle size

Babin, Marcel

170

Plant Growth Measurement Techniques Using Near-Infrared  

E-Print Network [OSTI]

Plant Growth Measurement Techniques Using Near-Infrared Imagery Amr Aboelela John Barron Dept, for measuring plant growth for corn seedlings and Caster Oil Bean leaves. A near-infrared camera, which allows to hypothesize where growth might be taking place. Keywords: Near-Infrared Imagery, Corn Seedling stem

Barron, John

171

COMMUNICATIONS Near-infrared femtosecond photoionization/dissociation of cyclic  

E-Print Network [OSTI]

COMMUNICATIONS Near-infrared femtosecond photoionization/dissociation of cyclic aromatic, phenanthrene, and anthracene. The near-infrared ionization process leads to the production of intact molecular of femtoseconds in simple cluster systems.12­15 Here we report the near-infrared 780 nm photoioniza- tion

Levis, Robert J.

172

Illumination Invariant Face Recognition Using Near-Infrared Images  

E-Print Network [OSTI]

Illumination Invariant Face Recognition Using Near-Infrared Images Stan Z. Li, Senior Member, IEEE-user applications. First, we present an active near infrared (NIR) imaging system that is able to produce face groups. Index Terms--Biometrics, face recognition, near infrared (NIR), illumination invariant, local

Fan, Guoliang

173

innovative techniques Near-infrared spiroximetry: noninvasive measurements  

E-Print Network [OSTI]

innovative techniques Near-infrared spiroximetry: noninvasive measurements of venous saturationO2 ) in tissues using near-infrared spectroscopy (NIRS). This method is based on the respiration-induced oscillations of the near-infrared ab- sorption in tissues, and we call it spiroximetry (the prefix spiro means

174

AKARI INFRARED CAMERA SURVEY OF THE LARGE MAGELLANIC CLOUD. II. THE NEAR-INFRARED SPECTROSCOPIC CATALOG  

SciTech Connect (OSTI)

We performed a near-infrared spectroscopic survey toward an area of {approx}10 deg{sup 2} of the Large Magellanic Cloud (LMC) with the infrared satellite AKARI. Observations were carried out as part of the AKARI Large-area Survey of the Large Magellanic Cloud (LSLMC). The slitless multi-object spectroscopic capability of the AKARI/IRC enabled us to obtain low-resolution (R {approx} 20) spectra in 2-5 {mu}m for a large number of point sources in the LMC. As a result of the survey, we extracted about 2000 infrared spectra of point sources. The data are organized as a near-infrared spectroscopic catalog. The catalog includes various infrared objects such as young stellar objects (YSOs), asymptotic giant branch (AGB) stars, supergiants, and so on. It is shown that 97% of the catalog sources have corresponding photometric data in the wavelength range from 1.2 to 11 {mu}m, and 67% of the sources also have photometric data up to 24 {mu}m. The catalog allows us to investigate near-infrared spectral features of sources by comparison with their infrared spectral energy distributions. In addition, it is estimated that about 10% of the catalog sources are observed at more than two different epochs. This enables us to study a spectroscopic variability of sources by using the present catalog. Initial results of source classifications for the LSLMC samples are presented. We classified 659 LSLMC spectra based on their near-infrared spectral features by visual inspection. As a result, it is shown that the present catalog includes 7 YSOs, 160 C-rich AGBs, 8 C-rich AGB candidates, 85 O-rich AGBs, 122 blue and yellow supergiants, 150 red super giants, and 128 unclassified sources. Distributions of the classified sources on the color-color and color-magnitude diagrams are discussed in the text. Continuous wavelength coverage and high spectroscopic sensitivity in 2-5 {mu}m can only be achieved by space observations. This is an unprecedented large-scale spectroscopic survey toward the LMC in the near-infrared. A large number of near-infrared spectral data provided by the survey possess scientific potential that can be applied to various studies. In this paper, we present the details of the spectroscopic survey and the catalog, and discuss its scientific applications.

Shimonishi, Takashi [Department of Earth and Planetary Sciences, Graduate School of Science, Kobe University, Nada Kobe 657-8501 (Japan); Onaka, Takashi; Kato, Daisuke; Sakon, Itsuki [Department of Astronomy, Graduate School of Science, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033 (Japan); Ita, Yoshifusa [Astronomical Institute, Graduate School of Science, Tohoku University, 6-3 Aramaki Aoba, Aoba-ku, Sendai, Miyagi 980-8578 (Japan); Kawamura, Akiko [National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588 (Japan); Kaneda, Hidehiro, E-mail: shimonishi@penguin.kobe-u.ac.jp [Graduate School of Science, Nagoya University, Chikusa-ku, Nagoya 464-8602 (Japan)

2013-02-01T23:59:59.000Z

175

Posters Long-Pathlength Infrared Absorption Measurements  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

3 3 Posters Long-Pathlength Infrared Absorption Measurements in the 8- to 14-µm Atmospheric Window: Self-Broadening Coefficient Data T. J. Kulp (a) and J. Shinn Geophysics and Environmental Research Program Lawrence Livermore National Laboratory Livermore, California Introduction The accurate characterization of the latent infrared (IR) absorption in the atmospheric window regions continues to be an area of research interest for the global climate modeling community. In the window between 8 and 14 µm, this absorption can be attributed primarily to water vapor. It consists of 1) weak lines originating from the edge of the water vapor pure rotational band (at low wavenumbers) and the trailing P-branch of the υ 2 rovibrational band (at the high-wavenumber boundary of the window); and 2) the

176

Quantum-cascade lasers enable infrared sensors  

SciTech Connect (OSTI)

Quantum-cascade lasers (QCLs) are semiconductor-injection lasers based on intersubband transitions in a multiple-quantum-well heterostructure. They are designed using band-structure engineering and grown by molecular beam epitaxy. The emission wavelength of a QCL is primarily a function of quantum-well thickness--thinner quantum wells lead to shorter wavelengths--and is essentially independent of the material bandgap. Quantum-cascade lasers can be designed to operate at any wavelength from 3.5 m (infrared) to 67 m (terahertz region) and are continuously tunable through ranges of a few inverse centimeters.1, 2, 3 This capability makes them well suited for spectroscopy in the infrared (see Laser Focus World, August 1999, p. 40).

Schultz, John F. (BATTELLE (PACIFIC NW LAB))

2003-05-01T23:59:59.000Z

177

Visualizing infrared phenomena with a webcam  

Science Journals Connector (OSTI)

The concept of light (electromagnetic radiation) outside of the visible spectrum is an abstract concept for students in an introductory science class. When students are presented with demonstrations or experiments meant to explore this portion of the spectrum the equipment involved often hides the phenomena. A simple modification to a standard inexpensive web camera (webcam) can take advantage of the sensitivity of the charged-coupled-device (CCD) to the infrared (IR) portion of the spectrum allowing students to visualize many IR phenomena. This note reports how such a modified webcam can be used in lecture demonstrations and laboratory activities to study infrared phenomena including an IR light emitting diode(LED) the IR component of different light sources IR spectroscopy and blackbody radiation. As a final example the modified camera can be employed to view the charcoal under-drawing of a painting created for this paper and used in our classroom demonstrations.

N. A. Gross; M. Hersek; A. Bansil

2005-01-01T23:59:59.000Z

178

Carbon nanotubes as near infrared laser susceptors  

E-Print Network [OSTI]

.1. Near Infrared radiation and its interaction with materials ................................... 7 2.1.1. Atomic response to photon absorption .............................................................. 10 2.1.2. Electronic absorption processes... absorption, this extinction of the incident light by atoms is called Raleigh scattering. 10 2.1.1. Atomic response to photon absorption The simple first order explanation of the interaction of atoms with photons was made by Einstein. No explicit quantum...

Bahrami, Amir

2011-01-11T23:59:59.000Z

179

Far-infrared attenuation in glasses  

Science Journals Connector (OSTI)

The influence of quasilocal vibrations on the far-infrared spectra of glasses is investigated under the supposition that the quasilocal vibrations are directly inactive in the attenuation. It is shown that taking into account phonon-quasilocal-vibration coupling and both medium- and short-range structure of the inhomogeneities of a photon-phonon coupling parameter can give rise to an attenuation curve similar to one observed for a-SiO2 and related materials.

Lev I. Deich

1994-01-01T23:59:59.000Z

180

THE INFRARED COLORS OF THE SUN  

SciTech Connect (OSTI)

Solar infrared colors provide powerful constraints on the stellar effective temperature scale, but they must be measured with both accuracy and precision in order to do so. We fulfill this requirement by using line-depth ratios to derive in a model-independent way the infrared colors of the Sun, and we use the latter to test the zero point of the Casagrande et al. effective temperature scale, confirming its accuracy. Solar colors in the widely used Two Micron All Sky Survey (2MASS) JHK{sub s} and WISE W1-4 systems are provided: (V - J){sub Sun} = 1.198, (V - H){sub Sun} = 1.484, (V - K{sub s} ){sub Sun} = 1.560, (J - H){sub Sun} = 0.286, (J - K{sub s} ){sub Sun} = 0.362, (H - K{sub s} ){sub Sun} = 0.076, (V - W1){sub Sun} = 1.608, (V - W2){sub Sun} = 1.563, (V - W3){sub Sun} = 1.552, and (V - W4){sub Sun} = 1.604. A cross-check of the effective temperatures derived implementing 2MASS or WISE magnitudes in the infrared flux method confirms that the absolute calibration of the two systems agrees within the errors, possibly suggesting a 1% offset between the two, thus validating extant near- and mid-infrared absolute calibrations. While 2MASS magnitudes are usually well suited to derive T{sub eff}, we find that a number of bright, solar-like stars exhibit anomalous WISE colors. In most cases, this effect is spurious and can be attributed to lower-quality measurements, although for a couple of objects (3% {+-} 2% of the total sample) it might be real, and may hint at the presence of warm/hot debris disks.

Casagrande, L.; Asplund, M. [Research School of Astronomy and Astrophysics, Mount Stromlo Observatory, Australian National University, ACT 2611 (Australia); Ramirez, I. [McDonald Observatory and Department of Astronomy, University of Texas at Austin, 1 University Station, C1400 Austin, TX 78712-0259 (United States); Melendez, J., E-mail: luca@mso.anu.edu.au [Departamento de Astronomia do IAG/USP, Universidade de Sao Paulo, Rua do Matao 1226, Sao Paulo, 05508-900 SP (Brazil)

2012-12-10T23:59:59.000Z

Note: This page contains sample records for the topic "geothermometry long-wave infrared" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

Probing Organic Transistors with Infrared Beams  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Probing Organic Transistors with Probing Organic Transistors with Infrared Beams Probing Organic Transistors with Infrared Beams Print Wednesday, 26 July 2006 00:00 Silicon-based transistors are well-understood, basic components of contemporary electronic technology. In contrast, there is growing need for the development of electronic devices based on organic polymer materials. Organic field-effect transistors (FETs) are ideal for special applications that require large areas, light weight, and structural flexibility. They also have the advantage of being easy to mass-produce at very low cost. However, even though this class of devices is finding a growing number of applications, electronic processes in organic materials are still not well understood. A group of researchers from the University of California and the ALS has succeeded in probing the intrinsic electronic properties of the charge carriers in organic FETs using infrared spectromicroscopy. The results of their study could help in the future development of sensors, large-area displays, and other plastic electronic components.

182

Application of infrared imaging in ferrocyanide tanks  

SciTech Connect (OSTI)

This report analyzes the feasibility of using infrared imaging techniques and scanning equipment to detect potential hot spots within ferrocyanide waste tanks at the Hanford Site. A hot spot is defined as a volumetric region within a waste tank with an excessively warm temperature that is generated by radioactive isotopes. The thermal image of a hot spot was modeled by computer. this model determined the image an IR system must detect. Laboratory and field tests of the imaging system are described, and conclusions based on laboratory and field data are presented. The report shows that infrared imaging is capable of detecting hot spots in ferrocyanide waste tanks with depths of up to 3.94 m (155 in.). The infrared imaging system is a useful technology for initial evaluation and assessment of hot spots in the majority of ferrocyanide waste tanks at the Hanford Site. The system will not allow an exact hot spot and temperature determination, but it will provide the necessary information to determine the worst-case hot spot detected in temperature patterns. Ferrocyanide tanks are one type of storage tank on the Watch List. These tanks are identified as priority 1 Hanford Site Tank farm Safety Issues.

Morris, K.L.; Mailhot, R.B. Jr.; McLaren, J.M.; Morris, K.L.

1994-09-28T23:59:59.000Z

183

The Infrared Jet in 3C31  

E-Print Network [OSTI]

We report the detection of infrared emission from the jet of the nearby FR I radio galaxy 3C 31. The jet was detected with the IRAC instrument on Spitzer at 4.5 micron, 5.8 micron, and 8.0 micron out to 30" (13 kpc) from the nucleus. We measure radio, infrared, optical, and X-ray fluxes in three regions along the jet determined by the infrared and X-ray morphology. Radio through X-ray spectra in these regions demonstrate that the emission can be interpreted as synchrotron emission from a broken power-law distribution of electron energies. We find significant differences in the high energy spectra with increasing distance from the nucleus. Specifically, the high energy slope increases from 0.86 to 1.72 from 1 kpc to 12 kpc along the jet, and the spectral break likewise increases in frequency along the jet from 10-100's of GHz to ~20 THz. Thus the ratio of IR to X-ray flux in the jet increases by at least an order of magnitude with increasing distance from the nucleus. We argue that these changes cannot simply ...

Lanz, Lauranne; Kraft, Ralph P; Birkinshaw, Mark; Lal, Dharam V; Forman, William R; Jones, Christine; Worrall, Diana M

2015-01-01T23:59:59.000Z

184

Resonator-quantum well infrared photodetectors  

SciTech Connect (OSTI)

We applied a recent electromagnetic model to design the resonator-quantum well infrared photodetector (R-QWIP). In this design, we used an array of rings as diffractive elements to diffract normal incident light into parallel propagation and used the pixel volume as a resonator to intensify the diffracted light. With a proper pixel size, the detector resonates at certain optical wavelengths and thus yields a high quantum efficiency (QE). To test this detector concept, we fabricated a number of R-QWIPs with different quantum well materials and detector geometries. The experimental result agrees satisfactorily with the prediction, and the highest QE achieved is 71%.

Choi, K. K., E-mail: kwong.k.choi.civ@mail.mil; Sun, J.; Olver, K. [Electro-Optics and Photonics Division, U.S. Army Research Laboratory, Adelphi, Maryland 20783 (United States)] [Electro-Optics and Photonics Division, U.S. Army Research Laboratory, Adelphi, Maryland 20783 (United States); Jhabvala, M. D.; Jhabvala, C. A.; Waczynski, A. [Instrument Systems and Technology Division, NASA Goddard Space Flight Center, Greenbelt, Maryland 20771 (United States)] [Instrument Systems and Technology Division, NASA Goddard Space Flight Center, Greenbelt, Maryland 20771 (United States)

2013-11-11T23:59:59.000Z

185

An infrared invisibility cloak composed of glass  

Science Journals Connector (OSTI)

We propose to implement a nonmetallic low-loss cloak for the infrared range from identical chalcogenide glassresonators. Based on transformation optics for cylindrical objects our approach does not require metamaterial response to be homogeneous and accounts for the discrete nature of elementary responses governed by resonator shape illumination angle and inter-resonator coupling. Air fractions are employed to obtain the desired distribution of the cloak effective parameters. The effect of cloaking is verified by full-wave simulations of the true multiresonator structure. The feasibility of cloak fabrication is demonstrated by prototyping glass grating structures with the dimensions characteristic for the cloak resonators.

Elena Semouchkina; Douglas H. Werner; George B. Semouchkin; Carlo Pantano

2010-01-01T23:59:59.000Z

186

Infrared Images of Shock-Heated Tin  

SciTech Connect (OSTI)

High-resolution, gated infrared images were taken of tin samples shock heated to just below the 505 K melting point. Sample surfaces were either polished or diamond-turned, with grain sizes ranging from about 0.05 to 10 mm. A high explosive in contact with a 2-mm-thick tin sample induced a peak sample stress of 18 GPa. Interferometer data from similarly-driven tin shots indicate that immediately after shock breakout the samples spall near the free (imaged) surface with a scab thickness of about 0.1 mm.

Craig W. McCluskey; Mark D. Wilke; William D. Turley; Gerald D. Stevens; Lynn R. Veeser; Michael Grover

2004-09-01T23:59:59.000Z

187

Far-Infrared Absorptivity of Metals  

Science Journals Connector (OSTI)

A simple calculation of the far-infrared absorptivity of a strong-coupling metal in the normal state is presented which is valid in the anomalous-skin-effect (ASE) region. The form of the results is compared with that derived by an alternate procedure in a recent letter by the author. A discussion of electron-phonon renormalization effects in the ASE limit is then considered and, in particular, at frequencies below threshold (???D), an effective mass mP** is introduced which incorporates these effects.

H. Scher

1971-05-15T23:59:59.000Z

188

Application of Infrared Thermography in Building Energy Efficiency  

E-Print Network [OSTI]

ICEBO2006, Shenzhen, China Building Commissioning for Energy Efficiency and Comfort, Vol. VI-5-3 Application of Infrared Thermography in Building Energy Efficiency Yongzheng Shi Hongbing Chen Qi Xu Deying Li Zhonghua Wang Xiumu Fang...]. Infrared Technology,2002,01:34-37.(In Chinese) [6] Yangyang Wang. Research on surface temperature of building envelope measured by thermal infrared imager [J]. Hv & Ac, 2006, 02:84-88.(In Chinese) ...

Shi, Y.; Chen, H.; Xu, Q.; I, D.; Wang, Z.; Fang, X.

2006-01-01T23:59:59.000Z

189

Doped carbon nanostructure field emitter arrays for infrared imaging  

DOE Patents [OSTI]

An infrared imaging device and method for making infrared detector(s) having at least one anode, at least one cathode with a substrate electrically connected to a plurality of doped carbon nanostructures; and bias circuitry for applying an electric field between the anode and the cathode such that when infrared photons are adsorbed by the nanostructures the emitted field current is modulated. The detectors can be doped with cesium to lower the work function.

Korsah, Kofi (Knoxville, TN) [Knoxville, TN; Baylor, Larry R (Farragut, TN) [Farragut, TN; Caughman, John B (Oak Ridge, TN) [Oak Ridge, TN; Kisner, Roger A (Knoxville, TN) [Knoxville, TN; Rack, Philip D (Knoxville, TN) [Knoxville, TN; Ivanov, Ilia N (Knoxville, TN) [Knoxville, TN

2009-10-27T23:59:59.000Z

190

Principal component analysis and radiative transfer modelling of Spitzer Infrared Spectrograph spectra of ultraluminous infrared galaxies  

Science Journals Connector (OSTI)

......St, Engomi, 1516 Nicosia, Cyprus The mid-infrared spectra of...ULIRGs is a result of dust and gas reprocessing the optical and...densities (n HS) and assuming a gas-to-dust ratio of 150. The...information in IRS spectra, it is natural to use the PCs as a classification......

P. D. Hurley; S. Oliver; D. Farrah; L. Wang; A. Efstathiou

2012-08-11T23:59:59.000Z

191

Rapid Characterization of Drill Core and Cutting Mineralogy using Infrared  

Open Energy Info (EERE)

Rapid Characterization of Drill Core and Cutting Mineralogy using Infrared Rapid Characterization of Drill Core and Cutting Mineralogy using Infrared Spectroscopy Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: Rapid Characterization of Drill Core and Cutting Mineralogy using Infrared Spectroscopy Abstract Infrared spectroscopy is particularly good at identifying awide variety of hydrothermally altered minerals with no samplepreparation, and is especially helpful in discrimination amongclay minerals. We have performed several promising pilot studieson geothermal drill core and cuttings that suggest the efficiencyof the technique to sample continuously and provide alterationlogs similar to geophysical logs. We have successfully identifiedlayered silicates, zeolites, opal, calcite, and iron oxides and

192

Hollow-core infrared fiber incorporating metal-wire metamaterial  

Science Journals Connector (OSTI)

Infrared (IR) light is considered important for short-range wireless communication, thermal sensing, spectroscopy, material processing, medical surgery, astronomy etc. However, IR...

Yan, Min; Mortensen, Niels Asger

2009-01-01T23:59:59.000Z

193

On the Usage of Near-Infrared Spectral Reconstruction  

Science Journals Connector (OSTI)

Since the advent of near-infrared reflectance analysis (NIRA), there have been numerous attempts to give "traditional" spectroscopic explanations for the successful empirical and...

Kemeny, Gabor J; Wetzel, David L

1987-01-01T23:59:59.000Z

194

Posters Preliminary Analysis of Ground-Based Microwave and Infrared...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

3 Posters Preliminary Analysis of Ground-Based Microwave and Infrared Radiance Observations During the Pilot Radiation OBservation Experiment E. R. Westwater, Y. Han, J. H....

195

IR SNOM - Infrared Near-field Nanoimaging | EMSL  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Infrared near-field spectroscopy of trace explosives using an external cavity quantum cascade laser. Utilizing a broadly-tunable external cavity quantum cascade laser for...

196

Infrared Absorption Spectra of ? and ?-Calcium Sulphate Hemihydrates  

Science Journals Connector (OSTI)

... E. G., Trans. Brit. Ceram. Soc., 66, 485 (1967).ASTM E 16864T General Techniques of Infrared Quantitative Analysis, section 5e.

D. A. BARTRAM

1969-08-02T23:59:59.000Z

197

Use Remote Sensing Data (selected visible and infrared spectrums...  

Broader source: Energy.gov (indexed) [DOE]

Use Remote Sensing Data (selected visible and infrared spectrums) to locate high temperature ground anomalies in Colorado. Confirm heat flow potential with on-site surveys to drill...

198

Near infrared laser dyes for the detection of latent fingermarks .  

E-Print Network [OSTI]

??The near infrared region (700 nm 2000 nm) of the electromagnetic spectrum provides significant potential for fingermark detection. Many ubiquitous commercial surfaces give luminescent (more)

Chadwick, Scott Richard John

2013-01-01T23:59:59.000Z

199

Infrared near-field spectroscopy of trace explosives using an...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

spectroscopy of trace explosives using an external cavity quantum cascade laser. Infrared near-field spectroscopy of trace explosives using an external cavity quantum...

200

Infrared Spectroscopy and Optical Constants of Porous Amorphous...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Spectroscopy and Optical Constants of Porous Amorphous Solid Water. Infrared Spectroscopy and Optical Constants of Porous Amorphous Solid Water. Abstract: Reflection-absorption...

Note: This page contains sample records for the topic "geothermometry long-wave infrared" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Detection of Low Volatility Organic Analytes on Soils Using Infrared...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

of Low Volatility Organic Analytes on Soils Using Infrared Reflection Spectroscopy. Abstract: Previous work on detection of low-volatility liquid organic (and...

202

$\\alpha$ Centauri A in the far infrared  

E-Print Network [OSTI]

Chromospheres and coronae are common phenomena on solar-type stars. Understanding the energy transfer to these heated atmospheric layers requires direct access to the relevant empirical data. Study of these structures has, by and large, been limited to the Sun thus far. The region of the temperature reversal can be directly observed only in the far infrared and submm. We aim at the determination of the characteristics of the atmosphere in the region of the temperature minimum of the solar sister star alpha Cen A. For the nearby binary system alpha Centauri, stellar parameters are known with high accuracy from measurements. For the basic model parameters Teff, log g and [Fe/H], we interpolate in the grid of GAIA/PHOENIX stellar model atmospheres and compute the corresponding model for the G2 V star alpha Cen A. Comparison with photometric measurements shows excellent agreement between observed photospheric data in the optical and infrared. For longer wavelengths, the modelled spectral energy distribution is co...

Liseau, R; Olofsson, G; Bryden, G; Marshall, J P; Ardila, D; Aran, A Bayo; Danchi, W C; del Burgo, C; Eiroa, C; Ertel, S; Fridlund, M C W; Krivov, A V; Pilbratt, G L; Roberge, A; Thbault, P; Wiegert, J; White, G J

2012-01-01T23:59:59.000Z

203

Cell-Permeable Near-Infrared Fluorogenic Substrates for Imaging -Lactamase Activity  

E-Print Network [OSTI]

Cell-Permeable Near-Infrared Fluorogenic Substrates for Imaging -Lactamase Activity Bengang Xing,11 Several fluorogenic substrates for Bla have been reported,4,12 but none work for infrared or near-infrared fluorescence imaging. Infrared/near-infrared light is preferred in molecular imaging studies of living subjects

Xing, Bengang

204

Combining multivariate analysis and monosaccharide composition modeling to identify plant cell wall variations by Fourier Transform Near Infrared spectroscopy.  

E-Print Network [OSTI]

19. Wetzel DL: Near-infrared reflectance analysis - sleepertreatments of raw near-infrared signal in the measurement ofusing transmittance near-infrared spectroscopy. J Agric Food

2011-01-01T23:59:59.000Z

205

Combining multivariate analysis and monosaccharide composition modeling to identify plant cell wall variations by Fourier Transform Near Infrared spectroscopy  

E-Print Network [OSTI]

19. Wetzel DL: Near-infrared reflectance analysis - sleepertreatments of raw near-infrared signal in the measurement ofusing transmittance near-infrared spectroscopy. J Agric Food

2011-01-01T23:59:59.000Z

206

THE LAS CAMPANAS INFRARED SURVEY. III. THE H-BAND IMAGING SURVEY AND THE NEAR-INFRARED AND OPTICAL PHOTOMETRIC CATALOGS  

E-Print Network [OSTI]

THE LAS CAMPANAS INFRARED SURVEY. III. THE H-BAND IMAGING SURVEY AND THE NEAR-INFRARED AND OPTICAL on broadband optical and near-infrared photometry, is designed to robustly identify a statistically significant-reduction techniques, and object identification procedures. We present sam- ple near-infrared and optical photometric

Goddard III, William A.

207

Instrumentation for Far-infrared Spectroscopy Peter R. Griffiths1  

E-Print Network [OSTI]

at one end with an infrared transparent window (A) through which radiation reaches a thin absorbing film- and Far-Infrared Spectroscopy Window Incident radiation A B Absorbing film Pneumatic chamber Ballasting passes through the window onto a blackened film, causing the pressure of the gas in the pneumatic chamber

Homes, Christopher C.

208

Detection Improvised Explosive Device (IED) Emplacement Using Infrared Image  

Science Journals Connector (OSTI)

This paper presents a method to detect an improvised explosive device (IED) by using infrared thermography (IRT) technology. The detection of IED will be done automatically and accurately even the IED detection expert is not present. Combining the advantage ... Keywords: infrared imaging, improvised explosive device, image segmentation

Kamarul Hawari Ghazali, Mohd Shawal Jadin

2014-03-01T23:59:59.000Z

209

Free-standing inductive grid filter for infrared radiation rejection  

Science Journals Connector (OSTI)

We developed a fabrication method for free-standing metal structures with high aspect ratios to manufacture inductive grid filters for infrared rejection. Deep grooves in thermally evaporated SiO"2 layer, fabricated by electron beam lithography and etching, ... Keywords: Inductive grid filter, Infrared rejection, Metallic nanostructures

Konstantins Jefimovs; Janne Laukkanen; Tuomas Vallius; Tero Pilvi; Mikko Ritala; Tomi Meilahti; Matti Kaipiainen; Marcos Bavdaz; Markku Leskel; Jari Turunen

2006-04-01T23:59:59.000Z

210

Near-infrared approaches for cell culture monitoring  

E-Print Network [OSTI]

investigated using near-infrared spectroscopy across the 2.0-2.5 mm spectral region. A system was developed using a Fourier Transform Infrared (FT-IR) spectrometer and optical fibers to characterize glucose and lactate absorbance spectra in cell culture media...

Lee, Seung Joon

2012-06-07T23:59:59.000Z

211

Multivariate classification of infrared spectra of cell and tissue samples  

DOE Patents [OSTI]

Multivariate classification techniques are applied to spectra from cell and tissue samples irradiated with infrared radiation to determine if the samples are normal or abnormal (cancerous). Mid and near infrared radiation can be used for in vivo and in vitro classifications using at least different wavelengths.

Haaland, David M. (Albuquerque, NM); Jones, Howland D. T. (Albuquerque, NM); Thomas, Edward V. (Albuquerque, NM)

1997-01-01T23:59:59.000Z

212

Near-infrared spectroscopic tissue imaging for medical applications  

DOE Patents [OSTI]

Near infrared imaging using elastic light scattering and tissue autofluorescence are explored for medical applications. The approach involves imaging using cross-polarized elastic light scattering and tissue autofluorescence in the Near Infra-Red (NIR) coupled with image processing and inter-image operations to differentiate human tissue components.

Demos, Stavros (Livermore, CA); Staggs, Michael C. (Tracy, CA)

2006-12-12T23:59:59.000Z

213

Near-infrared spectroscopic tissue imaging for medical applications  

DOE Patents [OSTI]

Near infrared imaging using elastic light scattering and tissue autofluorescence are explored for medical applications. The approach involves imaging using cross-polarized elastic light scattering and tissue autofluorescence in the Near Infra-Red (NIR) coupled with image processing and inter-image operations to differentiate human tissue components.

Demos; Stavros (Livermore, CA), Staggs; Michael C. (Tracy, CA)

2006-03-21T23:59:59.000Z

214

OIL SPILL SENSOR USING MULTISPECTRAL INFRARED IMAGING VIA 1 MINIMIZATION  

E-Print Network [OSTI]

OIL SPILL SENSOR USING MULTISPECTRAL INFRARED IMAGING VIA 1 MINIMIZATION Yingying Li , Wei Computational and Applied Mathematics, Rice University ABSTRACT Early detection of oil spill events is the key in detecting the early onset of a small-scale oil spill event. Based on an infrared oil-water contrast model

Yin, Wotao

215

INFRARED ABSORPTION SPECTROSCOPY AND CHEMICAL KINETICS OF FREE RADICALS  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

mNAL PERFORMANCE REPORT mNAL PERFORMANCE REPORT for INFRARED ABSORPTION SPECTROSCOPY AND CHEMICAL KINETICS OF FREE RADICALS DE-FG05-85ER13439 1-AUG-1985 to 31-JUL-1994 Robert F. Curl and Graham P. Glass Principal Investigators Introduction This research was directed at the detection, monitoring, and study (by infrared absorption spectroscopy) of the chemical kinetic behavior of small free radical species thought to be important intermediates in combustion. The work typically progressed from the detection and analysis of the infrared spectrum of combustion radical to the utilization of the infrared spectrum thus obtained in the investigation of chemical kinetics of the radical species. The methodology employed was infrared kinetic spectroscopy. In this technique the radical is produced by UV flash photolysis using an excimer laser and then

216

High-pressure Infrared Spectra of Tal and Lawsonite  

SciTech Connect (OSTI)

We present high-pressure infrared spectra of two geologically important hydrous minerals: talc, Mg3Si4O10(OH)2 and lawsonite, CaAl2Si2O7(OH)2{center_dot}H2O,{center_dot}at room temperature. For lawsonite, our data span the far infrared region from 150 to 550 cm-1 and extend to 25 GPa. We combine our new spectroscopic data with previously published high-pressure mid-infrared and Raman data to constrain the Gr{umlt u}neisen parameter and vibrational density of states under pressure. In the case of talc, we present high-pressure infrared data that span both the mid and far infrared from 150 to 3800 cm-1 covering lattice, silicate, and hydroxyl stretching vibrations to a maximum pressure of 30 GPa. Both phases show remarkable metastability well beyond their nominal maximum thermodynamic stability at simultaneous high-pressure and high-temperature conditions.

Scott,H.; Liu, Z.; Hemley, R.; Williams, Q.

2007-01-01T23:59:59.000Z

217

Infrared non-destructive evaluation method and apparatus  

DOE Patents [OSTI]

A method of nondestructive evaluation and related system. The method includes arranging a test piece (14) having an internal passage (18) and an external surface (15) and a thermal calibrator (12) within a field of view (42) of an infrared sensor (44); generating a flow (16) of fluid characterized by a fluid temperature; exposing the test piece internal passage (18) and the thermal calibrator (12) to fluid from the flow (16); capturing infrared emission information of the test piece external surface (15) and of the thermal calibrator (12) simultaneously using the infrared sensor (44), wherein the test piece infrared emission information includes emission intensity information, and wherein the thermal calibrator infrared emission information includes a reference emission intensity associated with the fluid temperature; and normalizing the test piece emission intensity information against the reference emission intensity.

Baleine, Erwan; Erwan, James F; Lee, Ching-Pang; Stinelli, Stephanie

2014-10-21T23:59:59.000Z

218

Geothermal Reconnaissance From Quantitative Analysis Of Thermal Infrared  

Open Energy Info (EERE)

Geothermal Reconnaissance From Quantitative Analysis Of Thermal Infrared Geothermal Reconnaissance From Quantitative Analysis Of Thermal Infrared Imagery Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Reference Material: Geothermal Reconnaissance From Quantitative Analysis Of Thermal Infrared Imagery Details Activities (1) Areas (1) Regions (0) Abstract: Unavailable Author(s): K. Watson Published: Proceedings of the ninth international symposium on remote sensing of environment, April 15-19, p. 1919-1932., 1974 Document Number: Unavailable DOI: Unavailable Thermal And-Or Near Infrared At Raft River Geothermal Area (1974-1976) Raft River Geothermal Area Retrieved from "http://en.openei.org/w/index.php?title=Geothermal_Reconnaissance_From_Quantitative_Analysis_Of_Thermal_Infrared_Imagery&oldid=387504" Category:

219

Questioning the questions that have been asked about the infant brain using near-infrared spectroscopy  

E-Print Network [OSTI]

Questioning the questions that have been asked about the infant brain using near-infrared, University of Rochester, Rochester, NY, USA Near-infrared spectroscopy (NIRS) is a noninvasive diffuse; Near-infrared spectroscopy. "Sheddinglight"onascientificquestiontookonnew meaning when

Aslin, Richard N.

220

Pigments which reflect infrared radiation from fire  

DOE Patents [OSTI]

Conventional paints transmit or absorb most of the intense infrared (IR) radiation emitted by fire, causing them to contribute to the spread of fire. The present invention comprises a fire retardant paint additive that reflects the thermal IR radiation emitted by fire in the 1 to 20 micrometer (.mu.m) wavelength range. The important spectral ranges for fire control are typically about 1 to about 8 .mu.m or, for cool smoky fires, about 2 .mu.m to about 16 .mu.m. The improved inventive coatings reflect adverse electromagnetic energy and slow the spread of fire. Specific IR reflective pigments include titanium dioxide (rutile) and red iron oxide pigments with diameters of about 1 .mu.m to about 2 .mu.m and thin leafing aluminum flake pigments.

Berdahl, Paul H. (Oakland, CA)

1998-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "geothermometry long-wave infrared" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Nanoantennas for visible and infrared radiation  

E-Print Network [OSTI]

Nanoantennas for visible and infrared radiation can strongly enhance the interaction of light with nanoscale matter by their ability to efficiently link propagating and spatially localized optical fields. This ability unlocks an enormous potential for applications ranging from nanoscale optical microscopy and spectroscopy over solar energy conversion, integrated optical nanocircuitry, opto-electronics and density-ofstates engineering to ultra-sensing as well as enhancement of optical nonlinearities. Here we review the current understanding of optical antennas based on the background of both well-developed radiowave antenna engineering and the emerging field of plasmonics. In particular, we address the plasmonic behavior that emerges due to the very high optical frequencies involved and the limitations in the choice of antenna materials and geometrical parameters imposed by nanofabrication. Finally, we give a brief account of the current status of the field and the major established and emerging lines of inves...

Biagioni, Paolo; Hecht, Bert

2011-01-01T23:59:59.000Z

222

Pigments which reflect infrared radiation from fire  

DOE Patents [OSTI]

Conventional paints transmit or absorb most of the intense infrared (IR) radiation emitted by fire, causing them to contribute to the spread of fire. The present invention comprises a fire retardant paint additive that reflects the thermal IR radiation emitted by fire in the 1 to 20 micrometer ({micro}m) wavelength range. The important spectral ranges for fire control are typically about 1 to about 8 {micro}m or, for cool smoky fires, about 2 {micro}m to about 16 {micro}m. The improved inventive coatings reflect adverse electromagnetic energy and slow the spread of fire. Specific IR reflective pigments include titanium dioxide (rutile) and red iron oxide pigments with diameters of about 1 {micro}m to about 2 {micro}m and thin leafing aluminum flake pigments. 4 figs.

Berdahl, P.H.

1998-09-22T23:59:59.000Z

223

A Panoramic Mid-infrared Survey of Two Distant Clusters  

E-Print Network [OSTI]

(abridged) We present panoramic Spitzer MIPS 24um observations covering 9x9Mpc (25'x25') fields around two massive clusters, Cl0024+16 and MS0451-03, at z=0.39 and z=0.55. Our observations cover a very wide range of environments within these clusters, from high-density regions around the cores out to the turn-around radius. Cross-correlating the mid-infrared catalogs with deep optical and near-infrared imaging of these fields, we investigate the optical/near-infrared colors of the mid-infrared sources. We find excesses of mid-infrared sources with optical/near-infrared colors expected of cluster members in the two clusters and test this selection using spectroscopically confirmed 24um members. The much more significant excess is associated with Cl0024+16, whereas MS0451-03 has comparatively few mid-infrared sources. The mid-infrared galaxy population in Cl0024+16 appears to be associated with dusty star-forming galaxies (typically redder than the general cluster population by up to A_V~1-2 mags) rather than emission from dusty tori around active galactic nuclei (AGN) in early-type hosts. The inferred total-infrared star-formation rates in Cl0024+16 are typically >5x greater than those found from a similar Halpha survey, indicating significant obscured activity in the cluster population. We find evidence for strong evolution of the level of dust-obscured star-formation in dense environments out to z=0.5, analogous to the rise in fraction of optically-selected star-forming galaxies seen in clusters and the field out to similar redshifts. However, there are clearly significant cluster-to-cluster variations in the populations of mid-infrared sources, probably reflecting differences in the intracluster media and recent dynamical evolution of these systems.

J. E. Geach; Ian Smail; R. S. Ellis; S. M. Moran; G. P. Smith; T. Treu; J. -P. Kneib; A. C. Edge; T. Kodama

2006-06-06T23:59:59.000Z

224

E-Print Network 3.0 - akari far-infrared observations Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

also have a capability for imaging... instruments, the Far-Infrared Surveyor (FIS; Kawada et al. 2007) and the Infrared Camera (IRC; Onaka et al... them highly suitable...

225

E-Print Network 3.0 - active infrared systems Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Collection: Renewable Energy ; Materials Science 71 A DEDICATED INFRARED SYNCHROTRON RADIATION SOURCE AT W. Barry, A. Biocca, J. M. Byrd Summary: on the Infrared Beamline",...

226

E-Print Network 3.0 - aerial color infrared Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Summary: electronic sensors and aerial color-infrared films both record visible and near-infrared wavelengths... of the Earth in other than natural colors. The result is...

227

Pushing The Sample-Size Limit Of Infrared Vibrational Nano-Spectroscop...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

The Sample-Size Limit Of Infrared Vibrational Nano-Spectroscopy: From Monolayer Towards Single molecule sensitivity. Pushing The Sample-Size Limit Of Infrared Vibrational...

228

Infrared imaging: A versatile NDT method for manufacturing  

SciTech Connect (OSTI)

The non-contact, non-invasive, highly adaptable nature of infrared technology offers many advantages over traditional non-destructive testing methods such as x-ray and ultrasound. Recent performance improvements accompanied by cost reductions are enabling broader implementation across a wide variety of industries. Most promising for future growth are application specific configurations packaged as integrated modules. Among the many industries that benefit from infrared technology, manufacturing has experienced the greatest gain. Environments including both continuous and batch manufacturing involve many critical thermal processes. Through the use of infrared imaging equipment, these processes can be easily monitored and optimized to ensure product quality and process efficiency.

West, L.M. [FLIR Systems, Inc., Portland, OR (United States)

1995-12-31T23:59:59.000Z

229

Quantitative infrared analysis of hydrogen fluoride  

SciTech Connect (OSTI)

This work was performed at the Portsmouth Gaseous Diffusion Plant where hydrogen fluoride is produced upon the hydrolysis of UF{sub 6}. This poses a problem for in this setting and a method for determining the mole percent concentration was desired. HF has been considered to be a non-ideal gas for many years. D. F. Smith utilized complex equations in his HF studies in the 1950s. We have evaluated HF behavior as a function of pressure from three different perspectives. (1) Absorbance at 3877 cm{sup -1} as a function of pressure for 100% HF. (2) Absorbance at 3877 cm{sup -1} as a function of increasing partial pressure HF. Total pressure = 300 mm HgA maintained with nitrogen. (3) Absorbance at 3877 cm{sup -1} for constant partial pressure HF. Total pressure is increased to greater than 800 mm HgA with nitrogen. These experiments have shown that at partial pressures up to 35mm HgA, HIF follows the ideal gas law. The absorbance at 3877 cm{sup -1} can be quantitatively analyzed via infrared methods.

Manuta, D.M.

1997-04-01T23:59:59.000Z

230

Infrared Imaging for Inquiry-Based Learning  

Science Journals Connector (OSTI)

Based on detecting long-wavelength infrared (IR) radiation emitted by the subject IR imaging shows temperature distribution instantaneously and heat flow dynamically. As a picture is worth a thousand words an IR camera has great potential in teaching heat transfer which is otherwise invisible. The idea of using IR imaging in teaching was first discussed by Vollmer et al. in 2001.13 IR cameras were then too expensive for most schools. Thanks to the growing need of home energy inspection using IR thermography the price of IR cameras has plummeted and they have become easy to use. As of 2011 the price of an entry-level handheld IR camera such as the FLIR I3 has fallen below $900 for educators. A slightly better version FLIR I5 was used to take the IR images in this paper. As easy to use as a digital camera the I5 camera automatically generates IR images of satisfactory quality with a temperature sensitivity of 0.1C. The purpose of this paper is to demonstrate how these affordable IR cameras can be used as a visualization inquiry and discovery tool. As the prices of IR cameras continue to drop it is time to give teachers an update about the educational power of this fascinating tool especially in supporting inquiry-based learning.

Charles Xie; Edmund Hazzard

2011-01-01T23:59:59.000Z

231

Background-subtraction using contour-based fusion of thermal and visible imagery  

E-Print Network [OSTI]

rights reserved. Keywords: Background-subtraction; Fusion; Thermal imagery; Infrared; FLIR; Contour of the electromagnetic spectrum, long-wave infrared (thermal) and visible light. Thermal (FLIR) and color video cameras

Davis, James W.

232

Geothermal Exploration in Eastern California Using Aster Thermal Infrared  

Open Energy Info (EERE)

in Eastern California Using Aster Thermal Infrared in Eastern California Using Aster Thermal Infrared Data Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: Geothermal Exploration in Eastern California Using Aster Thermal Infrared Data Abstract Remote sensing is a cost-effective tool that can be used to cover large areas for the purpose of geothermal exploration. A particular application is the use of satellite thermal infrared (TIR) imagery from the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) instrument aboard an orbiting satellite. It can be used to search remotely for elevated surface temperatures, which may be associated with geothermal resources. The study region is in the central part of eastern California, with emphasis on the Coso geothermal field. Nighttime scenes are most

233

Gas imaging by infrared gas-correlation spectrometry  

Science Journals Connector (OSTI)

We describe a new method for visualization of gas flows based on infrared absorption and gas-correlation techniques. This result is a gray-scale or false color-coded image showing the...

Sandsten, Jonas; Edner, Hans; Svanberg, Sune

1996-01-01T23:59:59.000Z

234

CHEMICAL IMAGING OF LIVING CELLS BY SYNCHROTRON INFRARED MICROSPECTROMETRY  

SciTech Connect (OSTI)

Chemical mapping of proteins and lipids inside a single living cell and at a resolution of a few microns, has been performed using synchroton infrared microspectrometry. Modifications of the chemical distributions upon mitosis and necrosis has been investigated.

JAMIN,N.; DUMAS,P.; MONCUIT,J.; FRIDMAN,W.H.; TEILLAUD,J.L.; CARR,G.L.; WILLIAMS,G.P.

1997-07-29T23:59:59.000Z

235

Infrared absorption spectra, radiative efficiencies, and global warming potentials  

E-Print Network [OSTI]

. Nutt,3 Keith P. Shine,4 Kevin Smith,5 and Timothy J. Wallington2 Received 17 July 2010; revised 21. Wallington (2010), Infrared absorption spectra, radiative efficiencies, and global warming potentials

Wirosoetisno, Djoko

236

Dirac Charge Dynamcs in Graphene by Infrared Spectroscopy  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Dirac Charge Dynamcs in Graphene by Infrared Spectroscopy Print Graphene-a single layer of carbon atoms arranged in a honeycomb lattice-has very high conductivity that can be tuned...

237

Infrared-Based Screening System Oak Ridge National Laboratory  

E-Print Network [OSTI]

) sensors or cameras, video images, and vehicle position sensors, and are generically known as infrared in enforcement was confirmed. Background -- Since 2007, ORNL has been involved in data collection efforts

238

Cryogenic far-infrared FabryPerot talon  

Science Journals Connector (OSTI)

A small cryogenic FabryPerot talon was fabricated for the far-infrared region. This design used freestanding metal meshes for the reflecting elements. Using a combination of...

Peterson, D B; Pickett, H M

1991-01-01T23:59:59.000Z

239

Characterization of mid-infrared quantum cascade lasers  

E-Print Network [OSTI]

Quantum cascade lasers provide some of the highest output powers available for light in the mid-infrared range (from 3 to 8 m). As many of their applications require portability, designs that have a high wall-plug efficiency ...

Burghoff, David Patrick

2009-01-01T23:59:59.000Z

240

Wednesday, January 30, 2013 Infrared Trapping the "Greenhouse Effect"  

E-Print Network [OSTI]

Wednesday, January 30, 2013 Infrared Trapping ­ the "Greenhouse Effect" Goals ­ to look is the same as a 1.8 degree F change. #12;Last time - Greenhouse effect demo Selective absorption. Greenhouse

Toohey, Darin W.

Note: This page contains sample records for the topic "geothermometry long-wave infrared" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Near-infrared wavefront sensing for the VLT interferometer  

E-Print Network [OSTI]

The very large telescope (VLT) interferometer (VLTI) in its current operating state is equipped with high-order adaptive optics (MACAO) working in the visible spectrum. A low-order near-infrared wavefront sensor (IRIS) is available to measure non-common path tilt aberrations downstream the high-order deformable mirror. For the next generation of VLTI instrumentation, in particular for the designated GRAVITY instrument, we have examined various designs of a four channel high-order near-infrared wavefront sensor. Particular objectives of our study were the specification of the near-infrared detector in combination with a standard wavefront sensing system. In this paper we present the preliminary design of a Shack-Hartmann wavefront sensor operating in the near-infrared wavelength range, which is capable of measuring the wavefronts of four telescopes simultaneously. We further present results of our design study, which aimed at providing a first instrumental concept for GRAVITY.

Stefan Hippler; Wolfgang Brandner; Yann Clnet; Felix Hormuth; Eric Gendron; Thomas Henning; Ralf Klein; Rainer Lenzen; Daniel Meschke; Vianak Naranjo; Udo Neumann; Jos Ricardo Ramos; Ralf-Rainer Rohloff; Frank Eisenhauer

2008-08-12T23:59:59.000Z

242

Near infrared frequency dependence of high-order sideband generation  

SciTech Connect (OSTI)

The near infrared frequency dependence of high order sideband generation in InGaAs quantum wells is discussed. The NIR frequency dependence of the sidebands indicates that the HSG phenomenon is excitonic in nature.

Zaks, Benjamin; Banks, Hunter; Sherwin, Mark [Physics Department and the Institute for Terahertz Science and Technology, University of California at Santa Barbara, Santa Barbara, CA 93106 (United States); Liu, Ren-Bao [Physics Department and Centre of Optical Sciences, Chinese University of Hong Kong, Shatin, New Territories, Hong Kong (China)

2013-12-04T23:59:59.000Z

243

Thermal unfolding dynamics of proteins probed by nonlinear infrared spectroscopy  

E-Print Network [OSTI]

This thesis presents spectroscopic approaches to study the thermal unfolding dynamics of proteins. The spectroscopic tool is nonlinear infrared (IR) spectroscopy of the protein amide I band. Among various nonlinear IR ...

Chung, Hoi Sung

2007-01-01T23:59:59.000Z

244

Sequential optical pumping of a far-infrared ammonia laser  

SciTech Connect (OSTI)

We present a novel technique for resonantly pumping a continuous-wave far-infrared NH{sub 3} laser with a line-tunable mid-infrared NH{sub 3} laser that is optically pumped by a CO{sub 2} laser. In this two-step process we first convert 10-{mu}m CO{sub 2} laser photons into 11{endash}13-{mu}m NH{sub 3} laser photons, which are then converted into 60{endash}400-{mu}m photons in a far-infrared NH{sub 3} laser. Continuous-wave laser action on 10 far-infrared lines of {sup 15}NH{sub 3}, including four new ones, has been obtained with a single CO{sub 2} laser pump line. {copyright} {ital 1996 Optical Society of America.}

Tachikawa, M.; Evenson, K.M. [Time and Frequency Division, National Institute of Standards and Technology, 325 Broadway, Boulder, Colorado 80303 (United States)

1996-08-01T23:59:59.000Z

245

Phenomenology of infrared finite gluon propagator and coupling constant  

E-Print Network [OSTI]

We report on some recent solutions of the Dyson-Schwinger equations for the infrared behavior of the gluon propagator and coupling constant, discussing their differences and proposing that these different behaviors can be tested through hadronic phenomenology. We discuss which kind of phenomenological tests can be applied to the gluon propagator and coupling constant, how sensitive they are to the infrared region of momenta and what specific solution is preferred by the experimental data.

A. A. Natale

2006-10-23T23:59:59.000Z

246

Free-standing inductive grid filter for infrared radiation rejection  

Science Journals Connector (OSTI)

We developed a fabrication method for free-standing metal structures with high aspect ratios to manufacture inductive grid filters for infrared rejection. Deep grooves in thermally evaporated SiO2 layer, fabricated by electron beam lithography and etching, were filled with iridium by atomic layer deposition technique. Characterization shows that the fabricated structures can suppress infrared radiation over two orders of magnitude while transmitting 40% of XUV radiation.

Konstantins Jefimovs; Janne Laukkanen; Tuomas Vallius; Tero Pilvi; Mikko Ritala; Tomi Meilahti; Matti Kaipiainen; Marcos Bavdaz; Markku Leskel; Jari Turunen

2006-01-01T23:59:59.000Z

247

Optical analysis and alignment applications using the infrared Smartt interferometer  

SciTech Connect (OSTI)

The possibility of using the infrared Smartt interferometer for optical analysis and alignment of infrared laser systems has been discussed previously. In this paper, optical analysis of the Gigawatt Test Facility at Los Alamos, as well as a deformable mirror manufactured by Rocketdyne, are discussed as examples of the technique. The possibility of optically characterizing, as well as aligning, pulsed high energy laser systems like Helios and Antares is discussed in some detail.

Viswanathan, V.K.; Bolen, P.D.; Liberman, I.; Seery, B.D.

1981-01-01T23:59:59.000Z

248

Author's personal copy Soil total carbon analysis in Hawaiian soils with visible, near-infrared and  

E-Print Network [OSTI]

Author's personal copy Soil total carbon analysis in Hawaiian soils with visible, near-infrared reflectance spectroscopy Agriculture Hawaii Mid-infrared Soil carbon Visible near-infrared Accurate assessment of DRS for Ct prediction of Hawaiian ag- ricultural soils by creating visible, near-infrared (VNIR

Grunwald, Sabine

249

AN INFRARED CENSUS OF STAR FORMATION IN THE HORSEHEAD NEBULA  

SciTech Connect (OSTI)

At {approx} 400 pc, the Horsehead Nebula (B33) is the closest radiatively sculpted pillar to the Sun, but the state and extent of star formation in this structure is not well understood. We present deep near-infrared (IRSF/SIRIUS JHK {sub S}) and mid-infrared (Spitzer/IRAC) observations of the Horsehead Nebula to characterize the star-forming properties of this region and to assess the likelihood of triggered star formation. Infrared color-color and color-magnitude diagrams are used to identify young stars based on infrared excess emission and positions to the right of the zero-age main sequence, respectively. Of the 45 sources detected at both near- and mid-infrared wavelengths, three bona fide and five candidate young stars are identified in this 7' x 7' region. Two bona fide young stars have flat infrared spectral energy distributions and are located at the western irradiated tip of the pillar. The spatial coincidence of the protostars at the leading edge of this elephant trunk is consistent with the radiation-driven implosion model of triggered star formation. There is no evidence, however, for sequential star formation within the immediate {approx} 1.'5 (0.17 pc) region from the cloud/H II region interface.

Bowler, Brendan P. [Institute for Astronomy, University of Hawaii, 2680 Woodlawn Drive, Honolulu, HI 96822 (United States); Waller, William H. [Department of Physics and Astronomy, Tufts University, Medford, MA 02155 (United States); Megeath, S. Thomas [Department of Physics and Astronomy, University of Toledo, Toledo, OH 43606 (United States); Patten, Brian M. [National Science Foundation, 4201 Wilson Blvd. Arlington, VA 22230 (United States); Tamura, Motohide [National Astronomical Observatory of Japan, Osawa, Mitaka, Tokyo 181-8588 (Japan)], E-mail: bpbowler@ifa.hawaii.edu, E-mail: william.waller@tufts.edu, E-mail: megeath@physics.utoledo.edu, E-mail: bpatten@nsf.gov, E-mail: motohide.tamura@nao.ac.jp

2009-03-15T23:59:59.000Z

250

Near-infrared induced optical quenching effects on mid-infrared quantum cascade lasers  

SciTech Connect (OSTI)

In space communications, atmospheric absorption and Rayleigh scattering are the dominant channel impairments. Transmission using mid-infrared (MIR) wavelengths offers the benefits of lower loss and less scintillation effects. In this work, we report the telecom wavelengths (1.55??m and 1.3??m) induced optical quenching effects on MIR quantum cascade lasers (QCLs), when QCLs are operated well above their thresholds. The QCL output power can be near 100% quenched using 20?mW of near-infrared (NIR) power, and the quenching effect depends on the input NIR intensity as well as wavelength. Time resolved measurement was conducted to explore the quenching mechanism. The measured recovery time is around 14?ns, which indicates that NIR generated electron-hole pairs may play a key role in the quenching process. The photocarrier created local field and band bending can effectively deteriorate the dipole transition matrix element and quench the QCL. As a result, MIR QCLs can be used as an optical modulator and switch controlled by NIR lasers. They can also be used as converters to convert telecom optical signals into MIR optical signals.

Guo, Dingkai, E-mail: dingk1@umbc.edu; Talukder, Muhammad Anisuzzaman; Chen, Xing [Department of Computer Science and Electrical Engineering, University of Maryland, Baltimore County, 1000 Hilltop Circle, Baltimore, Maryland 21250 (United States); Cai, Hong [Center of Advanced Studies in Photonics Research (CASPR), University of Maryland, Baltimore County, 1000 Hilltop Circle, Baltimore, Maryland 21250 (United States); Johnson, Anthony M.; Choa, Fow-Sen [Department of Computer Science and Electrical Engineering, University of Maryland, Baltimore County, 1000 Hilltop Circle, Baltimore, Maryland 21250 (United States); Center of Advanced Studies in Photonics Research (CASPR), University of Maryland, Baltimore County, 1000 Hilltop Circle, Baltimore, Maryland 21250 (United States); Khurgin, Jacob B. [Department of Electrical and Computer Engineering, Johns Hopkins University, Baltimore, Maryland 21218 (United States)

2014-06-23T23:59:59.000Z

251

Mid-Infrared Trace Gas Analysis with Single-Pass Fourier Transform Infrared Hollow Waveguide Gas Sensors  

Science Journals Connector (OSTI)

A hollow core optical fiber gas sensor has been developed in combination with a Fourier transform infrared (FT-IR) spectrometer operating in the spectral range of 4000500...

Kim, Seong-Soo; Menegazzo, Nicola; Young, Christina; Chan, James; Carter, Chance; Mizaikoff, Boris

2009-01-01T23:59:59.000Z

252

Femtosecond measurements of near-infrared pulse induced mid-infrared transmission modulation of quantum cascade lasers  

SciTech Connect (OSTI)

We temporally resolved the ultrafast mid-infrared transmission modulation of quantum cascade lasers (QCLs) using a near-infrared pump/mid-infrared probe technique at room temperature. Two different femtosecond wavelength pumps were used with photon energy above and below the quantum well (QW) bandgap. The shorter wavelength pump modulates the mid-infrared probe transmission through interband transition assisted mechanisms, resulting in a high transmission modulation depth and several nanoseconds recovery lifetime. In contrast, pumping with a photon energy below the QW bandgap induces a smaller transmission modulation depth but much faster (several picoseconds) recovery lifetime, attributed to intersubband transition assisted mechanisms. The latter ultrafast modulation (>60?GHz) could provide a potential way to realize fast QCL based free space optical communication.

Cai, Hong; Liu, Sheng [Department of Physics, University of Maryland, Baltimore County (UMBC), Baltimore, Maryland 21250 (United States); Center for Advanced Studied in Photonics Research (CASPR), UMBC, Baltimore, Maryland 21250 (United States); Lalanne, Elaine [Center for Advanced Studied in Photonics Research (CASPR), UMBC, Baltimore, Maryland 21250 (United States); Guo, Dingkai; Chen, Xing; Choa, Fow-Sen [Center for Advanced Studied in Photonics Research (CASPR), UMBC, Baltimore, Maryland 21250 (United States); Department of CSEE, UMBC, Baltimore, Maryland 21250 (United States); Wang, Xiaojun [AdTech Optics, Inc., City of Industry, California 91748 (United States); Johnson, Anthony M., E-mail: amj@umbc.edu [Department of Physics, University of Maryland, Baltimore County (UMBC), Baltimore, Maryland 21250 (United States); Center for Advanced Studied in Photonics Research (CASPR), UMBC, Baltimore, Maryland 21250 (United States); Department of CSEE, UMBC, Baltimore, Maryland 21250 (United States)

2014-05-26T23:59:59.000Z

253

The effect of high temperatures on the mid-to-far-infrared emission and near-infrared reflectance spectra of phyllosilicates and natural  

E-Print Network [OSTI]

The effect of high temperatures on the mid-to-far-infrared emission and near-infrared reflectance-to-far-IR) emission (100­1400 cm?1 ; 7.1­100 lm) and near-infrared (NIR) reflectance (1.2­2.5 lm) spectra altered or melted. We characterized the effects of high temperatures on the mid-to-far-infrared (mid

Glotch, Timothy D.

254

MID-INFRARED SPECTRAL VARIABILITY ATLAS OF YOUNG STELLAR OBJECTS  

SciTech Connect (OSTI)

Optical and near-infrared variability is a well-known property of young stellar objects. However, a growing number of recent studies claim that a considerable fraction of them also exhibit mid-infrared flux changes. With the aim of studying and interpreting variability on a decadal timescale, here we present a mid-infrared spectral atlas containing observations of 68 low- and intermediate-mass young stellar objects. The atlas consists of 2.5-11.6 {mu}m low-resolution spectra obtained with the ISOPHOT-S instrument on board the Infrared Space Observatory (ISO) between 1996 and 1998, as well as 5.2-14.5 {mu}m low-resolution spectra obtained with the Infrared Spectrograph instrument on board the Spitzer Space Telescope between 2004 and 2007. The observations were retrieved from the ISO and Spitzer archives and were post-processed interactively by our own routines. For those 47 objects where multi-epoch spectra were available, we analyze mid-infrared spectral variability on annual and/or decadal timescales. We identify 37 variable candidate sources. Many stars show wavelength-independent flux changes, possibly due to variable accretion rates. In several systems, all exhibiting 10 {mu}m silicate emission, the variability of the 6-8 {mu}m continuum, and the silicate feature exhibit different amplitudes. A possible explanation is variable shadowing of the silicate-emitting region by an inner disk structure of changing height or extra silicate emission from dust clouds in the disk atmosphere. Our results suggest that mid-infrared variability, in particular, the wavelength-dependent changes, is more ubiquitous than was known before. Interpreting this variability is a new possibility for exploring the structure of the disk and its dynamical processes.

Kospal, A. [Leiden Observatory, Leiden University, P.O. Box 9513, 2300 RA, Leiden (Netherlands); Abraham, P.; Kun, M.; Moor, A. [Konkoly Observatory, Research Centre for Astronomy and Earth Sciences, Hungarian Academy of Sciences, P.O. Box 67, 1525 Budapest (Hungary); Acosta-Pulido, J. A. [Instituto de Astrofisica de Canarias, Via Lactea s/n, 38200 La Laguna, Tenerife (Spain); Dullemond, C. P. [Institut fuer Theoretische Astrophysik, Zentrum fuer Astronomie der Universitaet Heidelberg, Albert-Ueberle-Str. 2, 69120 Heidelberg (Germany); Henning, Th.; Leinert, Ch. [Max-Planck-Institut fuer Astronomie, Koenigstuhl 17, 69117 Heidelberg (Germany); Turner, N. J., E-mail: akospal@rssd.esa.int [Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 (United States)

2012-08-01T23:59:59.000Z

255

ENSEMBLE VARIABILITY OF NEAR-INFRARED-SELECTED ACTIVE GALACTIC NUCLEI  

SciTech Connect (OSTI)

We present the properties of the ensemble variability V for nearly 5000 near-infrared active galactic nuclei (AGNs) selected from the catalog of Quasars and Active Galactic Nuclei (13th Edition) and the SDSS-DR7 quasar catalog. From three near-infrared point source catalogs, namely, Two Micron All Sky Survey (2MASS), Deep Near Infrared Survey (DENIS), and UKIDSS/LAS catalogs, we extract 2MASS-DENIS and 2MASS-UKIDSS counterparts for cataloged AGNs by cross-identification between catalogs. We further select variable AGNs based on an optimal criterion for selecting the variable sources. The sample objects are divided into subsets according to whether near-infrared light originates by optical emission or by near-infrared emission in the rest frame; and we examine the correlations of the ensemble variability with the rest-frame wavelength, redshift, luminosity, and rest-frame time lag. In addition, we also examine the correlations of variability amplitude with optical variability, radio intensity, and radio-to-optical flux ratio. The rest-frame optical variability of our samples shows negative correlations with luminosity and positive correlations with rest-frame time lag (i.e., the structure function, SF), and this result is consistent with previous analyses. However, no well-known negative correlation exists between the rest-frame wavelength and optical variability. This inconsistency might be due to a biased sampling of high-redshift AGNs. Near-infrared variability in the rest frame is anticorrelated with the rest-frame wavelength, which is consistent with previous suggestions. However, correlations of near-infrared variability with luminosity and rest-frame time lag are the opposite of these correlations of the optical variability; that is, the near-infrared variability is positively correlated with luminosity but negatively correlated with the rest-frame time lag. Because these trends are qualitatively consistent with the properties of radio-loud quasars reported by some previous studies, most of our sample objects are probably radio-loud quasars. Finally, we also discuss the negative correlations seen in the near-infrared SFs.

Kouzuma, S. [School of International Liberal Studies, Chukyo University, Toyota 470-0393 (Japan); Yamaoka, H., E-mail: skouzuma@lets.chukyo-u.ac.jp, E-mail: yamaoka@phys.kyushu-u.ac.jp [Department of Physics, Kyushu University, Fukuoka 812-8581 (Japan)

2012-03-01T23:59:59.000Z

256

EARLY SCIENCE WITH SOFIA, THE STRATOSPHERIC OBSERVATORY FOR INFRARED ASTRONOMY  

SciTech Connect (OSTI)

The Stratospheric Observatory For Infrared Astronomy (SOFIA) is an airborne observatory consisting of a specially modified Boeing 747SP with a 2.7 m telescope, flying at altitudes as high as 13.7 km (45,000 ft). Designed to observe at wavelengths from 0.3 {mu}m to 1.6 mm, SOFIA operates above 99.8% of the water vapor that obscures much of the infrared and submillimeter. SOFIA has seven science instruments under development, including an occultation photometer, near-, mid-, and far-infrared cameras, infrared spectrometers, and heterodyne receivers. SOFIA, a joint project between NASA and the German Aerospace Center Deutsches Zentrum fuer Luft und-Raumfahrt, began initial science flights in 2010 December, and has conducted 30 science flights in the subsequent year. During this early science period three instruments have flown: the mid-infrared camera FORCAST, the heterodyne spectrometer GREAT, and the occultation photometer HIPO. This Letter provides an overview of the observatory and its early performance.

Young, E. T.; Becklin, E. E.; De Buizer, J. M.; Andersson, B.-G.; Casey, S. C.; Helton, L. A. [SOFIA Science Center, Universities Space Research Association, NASA Ames Research Center, MS 232, Moffett Field, CA 94035 (United States); Marcum, P. M.; Roellig, T. L.; Temi, P. [NASA Ames Research Center, MS 232, Moffett Field, CA 94035 (United States); Herter, T. L. [Astronomy Department, 202 Space Sciences Building, Cornell University, Ithaca, NY 14853-6801 (United States); Guesten, R. [Max-Planck Institut fuer Radioastronomie, Auf dem Huegel 69, Bonn (Germany); Dunham, E. W. [Lowell Observatory, 1400 W. Mars Hill Rd., Flagstaff AZ 86001 (United States); Backman, D.; Burgdorf, M. [SOFIA Science Center, NASA Ames Research Center, MS 211-1, Moffett Field, CA 94035 (United States); Caroff, L. J.; Erickson, E. F. [NASA Ames Research Center, Moffett Field, CA 94035 (United States); Davidson, J. A. [School of Physics, The University of Western Australia (M013), 35 Stirling Highway, Crawley WA 6009 (Australia); Gehrz, R. D. [Minnesota Institute for Astrophysics, School of Physics and Astronomy, 116 Church Street, S. E., University of Minnesota, Minneapolis, MN 55455 (United States); Harper, D. A. [Yerkes Observatory, University of Chicago, 373 W. Geneva St., Williams Bay, WI (United States); Harvey, P. M. [Astronomy Department, University of Texas at Austin, 1 University Station C1400, Austin, TX 78712-0259 (United States); and others

2012-04-20T23:59:59.000Z

257

570 BIOCHIMICA ET BIOPHYSICA ACTA A LONG-WAVE ABSORBING FORM OF CHLOROPHYLL a RESPONSIBLE  

E-Print Network [OSTI]

Chlorella cells are ruptured at pH 4.6 by sonication in air, its absorption spectrum can be best explained Chlorella cells at 77 °K, may be due to increased fluorescence efficiency of Chl a 693 at low temperature to perform light reactions I and II. In the present work, we ruptured Chlorella cells by sonication

Govindjee

258

Long Waves Perturbations to Astronomical Tides in Adriatic and Tyrrenian Sea  

SciTech Connect (OSTI)

Portable tide gauges have been made with ultrasonic detectors with acquisition rate of 100 data per minute. With them we measured mean sea level variations in different locations of Adriatic and Tyrrenian sea around latitude 42 deg. N. Several long term variations are superimposed to astronomical tide, ranging from 4 to 60 minutes. Their nature of seiches or edge waves and their identification with transversal oscillations of the whole sea are discussed.

Sigismondi, Costantino [Sapienza Universita di Roma and ICRA, International Center for Relativistic Astrophysics Piazzale Aldo Moro 5, 00185 Rome (Italy)

2008-01-03T23:59:59.000Z

259

Under consideration for publication in J. Fluid Mech. 1 Long-wave Dynamics of an Inextensible  

E-Print Network [OSTI]

, is essential to a wide range of cellular functions partly because the membrane regulates the transport of par 2013) electric fields. Negative membrane tension and the ion currents in the diffuse layers near by the ion currents near the membrane (Lacoste et al. 2007, 2009; Ziebert et al. 2010; Ziebert & Lacoste 2010

Young, Yuan N.

260

A numerical investigation of long waves in the atmosphere produced by flow over various mountain profiles  

E-Print Network [OSTI]

vector in the y direction unit vector in the vertical direction wavelength periodic length of model residual error distance from center of paraboloid mountain horizontal distance t ime U, u average zonal wind V west wind component of V..., However, Rossby did not at that time associate mountains with these waves. Constructing 5-day, mean, pressure charts for the 3-km level, he noted the existence of the major semi-permanent features of the low- level circulation which he termed "centers...

Collins, Ralph Warren

2012-06-07T23:59:59.000Z

Note: This page contains sample records for the topic "geothermometry long-wave infrared" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Nonlinear Interactions between Longs Waves in a Two-Layer Fluid  

E-Print Network [OSTI]

(Cacchoine et al., 1995); coast of Surinam; the Persian Gulf (Soltanpour et al., 2010)). Generally, the immediate effect of cohesive sediments on the surface waves has been that of very strong damping, as reported by Wells & Coleman (1981). However...

Tahvildari, Navid

2012-02-14T23:59:59.000Z

262

Variability in Long-Wave Runup as a Function of Nearshore Bathymetric Features  

E-Print Network [OSTI]

and can be highly variable. The dynamic environment along the coast requires the thorough analysis of offshore features (Plant and Holman, 1997; Wang and Davis, 1998) which can be obtained through Light Detection and Ranging (lidar) (Brock et al., 2002... the movement of the sandbar to growth ratio. The results show that the sandbars moved onshore when the significant wave height was less than 1 m and offshore for wave heights greater than 1 m (Plant and Holman, 1997). The magnitude of the sandbar response...

Dunkin, Lauren M.

2011-08-08T23:59:59.000Z

263

Deep Geothermal Reservoir Temperatures in the Eastern Snake River Plain, Idaho using Multicomponent Geothermometry  

SciTech Connect (OSTI)

The U.S. Geological survey has estimated that there are up to 4,900 MWe of undiscovered geothermal resources and 92,000 MWe of enhanced geothermal potential within the state of Idaho. Of particular interest are the resources of the Eastern Snake River Plain (ESRP) which was formed by volcanic activity associated with the relative movement of the Yellowstone Hot Spot across the state of Idaho. This region is characterized by a high geothermal gradient and thermal springs occurring along the margins of the ESRP. Masking much of the deep thermal potential of the ESRP is a regionally extensive and productive cold-water aquifer. We have undertaken a study to infer the temperature of the geothermal system hidden beneath the cold-water aquifer of the ESRP. Our approach is to estimate reservoir temperatures from measured water compositions using an inverse modeling technique (RTEst) that calculates the temperature at which multiple minerals are simultaneously at equilibrium while explicitly accounting for the possible loss of volatile constituents (e.g., CO2), boiling and/or water mixing. In the initial stages of this study, we apply the RTEst model to water compositions measured from a limited number of wells and thermal springs to estimate the regionally extensive geothermal system in the ESRP.

Ghanashyam Neupane; Earl D. Mattson; Travis L. McLing; Carl D. Palmer; Robert W. Smith; Thomas R. Wood

2014-02-01T23:59:59.000Z

264

Geothermometry At Neal Hot Springs Geothermal Area (U.S. Geothermal...  

Open Energy Info (EERE)

of 177 C. References U.S. Geothermal Inc. (2008) U.S. Geothermal Announces Successful Completion of First Well at Neal Hot Springs Additional References Retrieved from "http:...

265

Dirac Charge Dynamcs in Graphene by Infrared Spectroscopy  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Dirac Charge Dynamcs in Graphene by Infrared Spectroscopy Print Dirac Charge Dynamcs in Graphene by Infrared Spectroscopy Print Graphene-a single layer of carbon atoms arranged in a honeycomb lattice-has very high conductivity that can be tuned by applying a gate voltage. The charge carriers in graphene can travel ballistically over great distances (~1 micron) without scattering. These unusual electronic properties make graphene a promising candidate for future nanoelectronics. Using infrared spectromicroscopy at ALS Beamline 1.4, a group of researchers from the University of California at San Diego, Columbia University, and the ALS has succeeded in probing the dynamical properties of the charge carriers in graphene with an accuracy never before achieved. Their results have uncovered signatures of many-body interactions in graphene and have demonstrated the potential of graphene for novel applications in optoelectronics.

266

Application Of High-Resolution Thermal Infrared Sensors For Geothermal  

Open Energy Info (EERE)

High-Resolution Thermal Infrared Sensors For Geothermal High-Resolution Thermal Infrared Sensors For Geothermal Exploration At The Salton Sea, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Application Of High-Resolution Thermal Infrared Sensors For Geothermal Exploration At The Salton Sea, California Details Activities (2) Areas (1) Regions (0) Abstract: The Salton Sea geothermal field straddles the southeast margin of the Salton Sea in California, USA. This field includes approximately 20km2 of mud volcanoes and mud pots and centered on the Mullet Island thermal anomaly. The area has been previously exploited for geothermal power; there are currently seven power plants in the area that produce 1000 MW. The field itself is relatively un-vegetated, which provides for unfettered

267

FRONTIER SYNCHROTRON INFRARED SPECTROSCOPY BEAMLINE UNDER EXTREME CONDITIONS (FIS)  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

FRONTIER SYNCHROTRON INFRARED SPECTROSCOPY FRONTIER SYNCHROTRON INFRARED SPECTROSCOPY BEAMLINE UNDER EXTREME CONDITIONS (FIS) Proposal Team: L. Carr 1 , D. Dolan 2 , R. Hemley 3 , S. Jacobson 4 , S. Karato 5 , Z. Liu 3 , W. Panero 6 , M. Pravica 7 , and T. Zhou 8 1 Brookhaven National Laboratory, 2 Sandia National Laboratories, 3 Carnegie Institution of Washington, 4 Northwestern University, 5 Yale University, 6 Ohio State University, 7 University of Nevada, 8 New Jersey Institute of Technology TECHNIQUES AND CAPABILITIES APPLICATIONS SPECIFIC PROJECTS / ADDITIONAL INFORMATION * TECHNIQUE(S): Fourier transform infrared spectroscopy; Raman and visible spectroscopy; Diamond anvil cell techniques for static high pressure; Gas-gun launchers for dynamic compression; Cryogenic techniques combined with DACs;

268

Dirac Charge Dynamcs in Graphene by Infrared Spectroscopy  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Dirac Charge Dynamcs in Graphene by Infrared Spectroscopy Print Dirac Charge Dynamcs in Graphene by Infrared Spectroscopy Print Graphene-a single layer of carbon atoms arranged in a honeycomb lattice-has very high conductivity that can be tuned by applying a gate voltage. The charge carriers in graphene can travel ballistically over great distances (~1 micron) without scattering. These unusual electronic properties make graphene a promising candidate for future nanoelectronics. Using infrared spectromicroscopy at ALS Beamline 1.4, a group of researchers from the University of California at San Diego, Columbia University, and the ALS has succeeded in probing the dynamical properties of the charge carriers in graphene with an accuracy never before achieved. Their results have uncovered signatures of many-body interactions in graphene and have demonstrated the potential of graphene for novel applications in optoelectronics.

269

Surface Temperatures of Insulated Glazing Units: Infrared Thermography Laboratory Measurements  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Infrared Thermography Measurements of Window Thermal Test Specimen Infrared Thermography Measurements of Window Thermal Test Specimen Surface Temperatures Brent T. Griffith ASHRAE Member, Howdy Goudey, and Dariush Arasteh P.E. ASHRAE Member Building Technologies Program Environment Energy Technologies Division Lawrence Berkeley National Laboratory University of California Berkeley CA 94720 USA August 2, 2001 This work was supported by the Assistant Secretary for Energy Efficiency and Renewable Energy, Office of Building Technology, State and Community Programs, Office of Building Systems of the U.S. Department of Energy under Contract No. DE-AC03-76SF00098. Surface Temperatures of Window Specimens: Infrared Thermography Laboratory Measurements Brent T. Griffith 1 , Howdy Goudey, and Dariush Arasteh

270

Application Of Airborne Thermal Infrared Imagery To Geothermal Exploration  

Open Energy Info (EERE)

Thermal Infrared Imagery To Geothermal Exploration Thermal Infrared Imagery To Geothermal Exploration Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Paper: Application Of Airborne Thermal Infrared Imagery To Geothermal Exploration Details Activities (0) Areas (0) Regions (0) Abstract: Burlington Northern (BN) conducted TIR surveys using a fixed wing aircraft over 17 different geothermal prospects in Washington, Montana and Wyoming because of this remote sensing tool's ability to detect variations in the heat emitted from the earth's surface. The surveys were flown at an average elevation of 5000 ft. above the ground surface which gave a spatial resolution of approximately 7 feet diameter. BN found thermal activity which had not been recognized previously in some prospects (e.g., Lester,

271

ARM - Evaluation Product - Airborne Visible/Infrared Imaging Spectrometer  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

ProductsAirborne Visible/Infrared Imaging ProductsAirborne Visible/Infrared Imaging Spectrometer (AVIRIS) Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Evaluation Product : Airborne Visible/Infrared Imaging Spectrometer (AVIRIS) 1997.08.01 - 1997.08.01 Site(s) SGP General Description AVIRIS is an optical sensor that delivers calibrated images of the upwelling spectral radiance in 224 contiguous spectral channels (bands) with wavelengths from 400 to 2500 nanometers. AVIRIS has been flown on two aircraft platforms: a NASA ER-2 jet and the Twin Otter turboprop. The main objective of the AVIRIS project is to identify, measure, and monitor constituents of the Earth's surface and atmosphere based on molecular absorption and particle scattering signatures. Research with

272

Infrared spectroscopy of cataclysmic variables - II. Intermediate polars  

E-Print Network [OSTI]

We present infrared (0.97-2.45 micron) spectra of the intermediate polars PQ Gem (RE0751+14), BG CMi and EX Hya. The spectra show strong Paschen, Brackett and HeI emission lines from the accretion disc/stream. The infrared continua of PQ Gem and BG CMi can be represented by blackbodies of temperatures 4500 K and 5100 K, respectively, or by power-laws of the form f_nu \\propto nu^(0.6,0.9), respectively, and show no evidence of secondary star features. The continuum of EX Hya is doiminated by water bands from the red-dwarf secondary star, which has a spectral type of ~M3. Despite showing circular polarization, PQ Gem and BG CMi show no evidence for cyclotron humps and hence we are unable to measure their magnetic field strengths; any cyclotron emission present must contribute less than ~3 per cent of the infrared continuum flux.

V. S. Dhillon; T. R. Marsh; S. R. Duck; S. R. Rosen

1996-09-06T23:59:59.000Z

273

Nanofocusing of mid-infrared electromagnetic waves on graphene monolayer  

SciTech Connect (OSTI)

Nanofocusing of mid-infrared (MIR) electromagnetic waves on graphene monolayer with gradient chemical potential is investigated with numerical simulation. On an isolated freestanding monolayer graphene sheet with spatially varied chemical potential, the focusing spot sizes of frequencies between 44 THz and 56 THz can reach around 1.6?nm and the intensity enhancement factors are between 2178 and 654. For 56 THz infrared, a group velocity as slow as 510{sup ?5} times of the light speed in vacuum is obtained at the focusing point. When the graphene sheet is placed on top of an aluminum oxide substrate, the focusing spot size of 56 THz infrared reduces to 1.1?nm and the intensity enhancement factor is still as high as 220. This structure offers an approach for focusing light in the MIR regime beyond the diffraction limit without complicated device geometry engineering.

Qiu, Weibin, E-mail: wbqiu@hqu.edu.cn, E-mail: wqiu@semi.ac.cn [College of Information Science and Engineering, National Huaqiao University, Xiamen 361021, Fujian (China); Institute of Semiconductors, Chinese Academy of Science, 100083 Beijing (China); Liu, Xianhe; Zhao, Jing; He, Shuhong; Ma, Yuhui; Wang, Jia-Xian [College of Information Science and Engineering, National Huaqiao University, Xiamen 361021, Fujian (China); Pan, Jiaoqing [Institute of Semiconductors, Chinese Academy of Science, 100083 Beijing (China)

2014-01-27T23:59:59.000Z

274

Advanced quantum cascade laser transmitter architectures and infrared photonics development  

SciTech Connect (OSTI)

Quantum cascade lasers (QCLs) provide a viable infrared laser source for a new class of laser transmitters capable of meeting the performance requirements for a variety of national security and civilian applications. The high output power, small size, and superb stability and modulation characteristics of QCLs make them amenable for integration as transmitters into ultra-sensitive, ultra-selective point sampling and remote short-range chemical sensors. This paper reports on the current development in infrared photonics that provides a pathway for QCL transmitter miniaturization. This research has produced infrared waveguide-based optical components in chalcogenide glass using both direct-laser writing and holographic exposure techniques. We discuss here the design and fabrication concepts and capabilities required to produce integrated waveguides, waveguide couplers, and other photonic devices.

Anheier, Norman C.; Allen, Paul J.; Myers, Tanya L.

2004-08-01T23:59:59.000Z

275

Mid infrared emission of nearby Herbig Ae/Be stars  

E-Print Network [OSTI]

We present mid IR spectro-photometric imaging of a sample of eight nearby ($D \\leq 240$pc) Herbig Ae/Be stars. The spectra are dominated by photospheric emission (HR6000), featureless infrared excess emission (T~Cha), broad silicate emission feature (HR5999) and the infrared emission bands (HD 97048, HD 97300, TY~CrA, HD 176386). The spectrum of HD179218 shows both silicate emission and infrared emission bands (IEB). All stars of our sample where the spectrum is entirely dominated by IEB have an extended emission on scales of a few thousand AU ($\\sim 10''$). We verify the derived source extension found with ISOCAM by multi--aperture photometry with ISOPHT and compare our ISOCAM spectral photometry with ISOSWS spectra.

R. Siebenmorgen; T. Prusti; A. Natta; Th. Mueller

2000-06-26T23:59:59.000Z

276

The Cosmic Near Infrared Background: Remnant Light from Early Stars  

E-Print Network [OSTI]

The redshifted ultraviolet light from early stars at z ~ 10 contributes to the cosmic near infrared background. We present detailed calculations of its spectrum with various assumptions about metallicity and mass spectrum of early stars. We show that if the near infrared background has a stellar origin, metal-free stars are not the only explanation of the excess near infrared background; stars with metals (e.g. Z=1/50 Z_sun) can produce the same amount of background intensity as the metal-free stars. We quantitatively show that the predicted average intensity at 1-2 microns is essentially determined by the efficiency of nuclear burning in stars, which is not very sensitive to metallicity. We predict \

Elizabeth Fernandez; Eiichiro Komatsu

2005-08-08T23:59:59.000Z

277

High speed infrared radiation thermometer, system, and method  

DOE Patents [OSTI]

The high-speed radiation thermometer has an infrared measurement wavelength band that is matched to the infrared wavelength band of near-blackbody emittance of ceramic components and ceramic thermal barrier coatings used in turbine engines. It is comprised of a long wavelength infrared detector, a signal amplifier, an analog-to-digital converter, an optical system to collect radiation from the target, an optical filter, and an integral reference signal to maintain a calibrated response. A megahertz range electronic data acquisition system is connected to the radiation detector to operate on raw data obtained. Because the thermometer operates optimally at 8 to 12 .mu.m, where emittance is near-blackbody for ceramics, interferences to measurements performed in turbine engines are minimized. The method and apparatus are optimized to enable mapping of surface temperatures on fast moving ceramic elements, and the thermometer can provide microsecond response, with inherent self-diagnostic and calibration-correction features.

Markham, James R. (Middlefield, CT)

2002-01-01T23:59:59.000Z

278

Sub-Pixel Response Measurement of Near-Infrared Sensors  

E-Print Network [OSTI]

Wide-field survey instruments are used to efficiently observe large regions of the sky. To achieve the necessary field of view, and to provide a higher signal-to-noise ratio for faint sources, many modern instruments are undersampled. However, precision photometry with undersampled imagers requires a detailed understanding of the sensitivity variations on a scale much smaller than a pixel. To address this, a near-infrared spot projection system has been developed to precisely characterize near-infrared focal plane arrays and to study the effect of sub-pixel non uniformity on precision photometry. Measurements of large format near-infrared detectors demonstrate the power of this system for understanding sub-pixel response.

N. Barron; M. Borysow; K. Beyerlein; M. Brown; C. Weaverdyck; W. Lorenzon; M. Schubnell; G. Tarle; A. Tomasch

2006-11-10T23:59:59.000Z

279

Dirac Charge Dynamcs in Graphene by Infrared Spectroscopy  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Dirac Charge Dynamcs in Graphene Dirac Charge Dynamcs in Graphene by Infrared Spectroscopy Dirac Charge Dynamcs in Graphene by Infrared Spectroscopy Print Wednesday, 29 October 2008 00:00 Graphene-a single layer of carbon atoms arranged in a honeycomb lattice-has very high conductivity that can be tuned by applying a gate voltage. The charge carriers in graphene can travel ballistically over great distances (~1 micron) without scattering. These unusual electronic properties make graphene a promising candidate for future nanoelectronics. Using infrared spectromicroscopy at ALS Beamline 1.4, a group of researchers from the University of California at San Diego, Columbia University, and the ALS has succeeded in probing the dynamical properties of the charge carriers in graphene with an accuracy never before achieved. Their results have uncovered signatures of many-body interactions in graphene and have demonstrated the potential of graphene for novel applications in optoelectronics.

280

Technology for Multispectral Infrared Laser Integration on Silicon J. E. Bowers, E. J. Stanton, M. J. Heck, A. Spott,  

E-Print Network [OSTI]

multispectral infrared platform for combining laser power spanning the ultraviolet to the mid-wave infrared from to the unique absorption spectra of many gaseous chemicals in the near-infrared (NIR) and mid- infrared (MIR platform of infrared laser sources and passive spectral combining devices is proposed to demonstrate

Bowers, John

Note: This page contains sample records for the topic "geothermometry long-wave infrared" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

An infrared and luminescence study of tritiated amorphous silicon  

SciTech Connect (OSTI)

Tritium has been incorporated into amorphous silicon. Infrared spectroscopy shows new infrared vibration modes due to silicon-tritium (Si-T) bonds in the amorphous silicon network. Si-T vibration frequencies are related to Si-H vibration frequencies by simple mass relationships. Inelastic collisions of {beta} particles, produced as a result of tritium decay, with the amorphous silicon network results in the generation of electron-hole pairs. Radiative recombination of these carriers is observed. Dangling bonds associated with the tritium decay reduce luminescence efficiency.

Sidhu, L.S.; Kosteski, T.; Kherani, N.P.; Gaspari, F.; Zukotynski, S.; Shmayda, W.

1997-07-01T23:59:59.000Z

282

Infrared absorption spectroscopy and chemical kinetics of free radicals  

SciTech Connect (OSTI)

This research is directed at the detection, monitoring, and study of chemical kinetic behavior by infrared absorption spectroscopy of small free radical species thought to be important intermediates in combustion. During the last year, infrared kinetic spectroscopy using excimer laser flash photolysis and color-center laser probing has been employed to study the high resolution spectrum of HCCN, the rate constant of the reaction between ethynyl (C{sub 2}H) radical and H{sub 2} in the temperature region between 295 and 875 K, and the recombination rate of propargyl (CH{sub 2}CCH) at room temperature.

Curl, R.F.; Glass, G.P. [Rice Univ., Houston, TX (United States)

1993-12-01T23:59:59.000Z

283

Transit and secondary eclipse photometry in the near-infrared  

E-Print Network [OSTI]

Near-infrared photometry of transiting extrasolar planets can be of great scientific value. It is however not straightforward to reach the necessary millimagnitude precision. Here we report on our attempts to observe transits and secondary eclipses of several extrasolar planets at 2.2 micron. Best results have been obtained on OGLE-TR-113b using the SOFI near-infrared camera on ESO's New Technology Telescope. Its K-band transit shows a remarkably flat bottom indicating low stellar limb darkening. Secondary eclipse photometry has resulted in a formal 3 sigma detection, but residual systematic effects make this detection rather uncertain.

Ignas Snellen

2007-05-02T23:59:59.000Z

284

Infrared divergence of the resonant Raman-Compton scattering  

Science Journals Connector (OSTI)

The infrared divergence of the resonant Raman-Compton scattering has been studied in collisions of photons on atomic L electrons in the intermediate-momentum-transfer regime. Low-energy continua emitted by Zr atoms, excited, in the vicinity of the K edge, by the monochromatized x rays delivered by the LURE Synchrotron Radiation Facility, have been observed on vary thin targets and compared with the theoretically predicted infrared divergence of the Raman scattering. The characteristic change in shape of these continua has been studied on a wide energy range below the Zr K edge.

J. P. Briand; A. Simionovici; P. Chevallier; P. Indelicato

1989-05-01T23:59:59.000Z

285

Head-up tilt and hyperventilation produce similar changes in cerebral oxygenation and blood volume: an observational comparison study using frequency-domain near-infrared spectroscopy  

E-Print Network [OSTI]

26. Rolfe P. In vivo near-infrared spectroscopy. Annu Revage using phase resolved near infrared spectroscopy. Pediatrin neonates determined by near-infrared time-resolved

2012-01-01T23:59:59.000Z

286

Infrared Optical Imaging Techniques for Gas Visualization and Measurement  

E-Print Network [OSTI]

detection of natural gas from a pipeline. The capability of an infrared camera to detect a fugitive gas leak was combined with the simulation of vapor discharge and dispersion in order to obtain a correlation between the emission rates and the sizes...

Safitri, Anisa

2012-07-16T23:59:59.000Z

287

Comparing infrared star formation rate indicators with optically derived quantities  

Science Journals Connector (OSTI)

......infrared star formation rate indicators with optically...USA 4 School of Physics, Astronomy, and...Spitzer 24-mum band pass and Halpha-measured star formation rate varies from galaxy...Spitzer 8.0-mum band pass, ultraviolet-excited...track star formation rate (SFR; e.g. Calzetti......

J. E. Young; C. Gronwall; J. J. Salzer; J. L. Rosenberg

2014-01-01T23:59:59.000Z

288

MODULATION DOMAIN FEATURES FOR DISCRIMINATING INFRARED TARGETS AND BACKGROUNDS  

E-Print Network [OSTI]

experiments against actual FLIR approach sequences, we verify that typical IR imagery does indeed possess-looking infrared (FLIR) imagery has been studied extensively. As is well-known, it is an extremely challenging counterparts. In particu- lar, FLIR images frequently exhibit weak signal-to-noise ratio and strong clutter

Havlicek, Joebob

289

USE OF INFRARED RADIATION IN THE STUDY OF FISH BEHAVIOR  

E-Print Network [OSTI]

, 000° K. (high -temperature tungsten lamp) . Relative emission from sun. #12;#12;The Eye of experimental facilities - ·^ Figure 4. Distribution of fingerling Pacific salmon (O^. kisutch) under ordinary room lighting 9 Figure 5. Distribution of fingerling Pacific salmon (O. kisutch) with infrared

290

Infrared absorption in LiF polymers and microcrystals  

Science Journals Connector (OSTI)

Infrared absorption spectra are reported for LiF in various stages of aggregation. Starting with monomers and dimers the degree of aggregation is increased to include more complex polymers until the transition is made to microcrystals and finally to bulk. The samples were prepared at helium temperature by the simultaneous condensation of argon and LiF vapor onto a transparent substrate. The argon matrix served the purpose of separating the LiF aggregates without strongly interacting with them. Although LiF vapor contains only monomers and dimers, larger polymers could be formed in the matrix by increasing the concentration of LiF. For concentrations of 2%, more than 20 distinct polymer lines could be seen in the infrared absorption spectrum. At concentrations of 7%, the LiF polymer lines abruptly disappear and a single broad surfacephonon absorption, characteristic of microcrystals, emerges. The surface-phonon frequency slowly shifts with increasing LiF concentration until it coincides with the bulk absorption peak at the long-wavelength transverse-optical phonon frequency. This shift is due to the increased dipolar interaction between microcrystals as they are brought closer together. The infrared absorption spectra of small regular polymers of LiF were calculated and compared with experiment. It appears that the infrared spectrum is much more influenced by the shape of the polymer than by its size.

T. P. Martin

1977-04-15T23:59:59.000Z

291

Infrared spectra of carbon monoxide adsorbed on palladium black  

SciTech Connect (OSTI)

The authors investigate the heterogeneous adsorption of carbon monoxide and the concurrent catalytic and sorptive properties of palladium black from the standpoint of a comprehensive analysis of the infrared spectra of the reaction pathways and their various products as well as the pressure dependence of the line behavior at various wavelengths.

Vozdvizhenskii, V.F.; Levintova, T.D.; Sokol'skii, D.V.

1986-06-01T23:59:59.000Z

292

Near- and mid-infrared imaging polarimetry of NGC 1068  

Science Journals Connector (OSTI)

......poses no problems for the nuclear polarimetry. Approximately...mid-infrared standards BS 6832 [ Sgr; S(10 m...10 m) = 933 Jy] and BS 7525 [S(10 m) = 93...effects noted, but at the cost of giving a less precise...especially near the bright nuclear continuum source. We......

S. L. Lumsden; T. J. T. Moore; C. Smith; T. Fujiyoshi; J. Bland-Hawthorn; M. J. Ward

1999-02-21T23:59:59.000Z

293

Thermal Infrared Radiation and Carbon Dioxide in the Atmosphere  

E-Print Network [OSTI]

dioxide Water vapor #12;Atmospheric composition (parts per million by volume) · Nitrogen (N2) 780Thermal Infrared Radiation and Carbon Dioxide in the Atmosphere Bill Satzer 3M Company #12;Outline,840 · Oxygen (O2) 209,460 · Argon (Ar) 9340 · Carbon dioxide (CO2) 394 · Methane (CH4) 1.79 · Ozone (O3) 0

Olver, Peter

294

Highly Confined Tunable Mid-Infrared Plasmonics in Graphene Nanoresonators  

E-Print Network [OSTI]

Highly Confined Tunable Mid-Infrared Plasmonics in Graphene Nanoresonators Victor W. Brar,, Min Supporting Information ABSTRACT: Single-layer graphene has been shown to have intriguing prospects observed in the 2-6 THz range, and active graphene plasmonic devices operating in that regime have been

295

Multivariate calibration applied to the quantitative analysis of infrared spectra  

SciTech Connect (OSTI)

Multivariate calibration methods are very useful for improving the precision, accuracy, and reliability of quantitative spectral analyses. Spectroscopists can more effectively use these sophisticated statistical tools if they have a qualitative understanding of the techniques involved. A qualitative picture of the factor analysis multivariate calibration methods of partial least squares (PLS) and principal component regression (PCR) is presented using infrared calibrations based upon spectra of phosphosilicate glass thin films on silicon wafers. Comparisons of the relative prediction abilities of four different multivariate calibration methods are given based on Monte Carlo simulations of spectral calibration and prediction data. The success of multivariate spectral calibrations is demonstrated for several quantitative infrared studies. The infrared absorption and emission spectra of thin-film dielectrics used in the manufacture of microelectronic devices demonstrate rapid, nondestructive at-line and in-situ analyses using PLS calibrations. Finally, the application of multivariate spectral calibrations to reagentless analysis of blood is presented. We have found that the determination of glucose in whole blood taken from diabetics can be precisely monitored from the PLS calibration of either mind- or near-infrared spectra of the blood. Progress toward the non-invasive determination of glucose levels in diabetics is an ultimate goal of this research. 13 refs., 4 figs.

Haaland, D.M.

1991-01-01T23:59:59.000Z

296

NEAR-INFRARED LINEAR POLARIZATION OF ULTRACOOL DWARFS  

SciTech Connect (OSTI)

We report on near-infrared J- and H-band linear polarimetric photometry of eight ultracool dwarfs (two late-M, five L0-L7.5, and one T2.5) with known evidence for photometric variability due to dust clouds, anomalous red infrared colors, or low-gravity atmospheres. The polarimetric data were acquired with the LIRIS instrument on the William Herschel Telescope. We also provide mid-infrared photometry in the interval 3.4-24 {mu}m for some targets obtained with Spitzer and WISE, which has allowed us to confirm the peculiar red colors of five sources in the sample. We can impose modest upper limits of 0.9% and 1.8% on the linear polarization degree for seven targets with a confidence of 99%. Only one source, 2MASS J02411151-0326587 (L0), appears to be strongly polarized (P {approx} 3%) in the J band with a significance level of P/{sigma}{sub P} {approx} 10. The likely origin of its linearly polarized light and rather red infrared colors may reside in a surrounding disk with an asymmetric distribution of grains. Given its proximity (66 {+-} 8 pc), this object becomes an excellent target for the direct detection of the disk.

Zapatero Osorio, M. R. [Centro de Astrobiologia (CSIC-INTA), Ctra. Ajalvir km 4, E-28850 Torrejon de Ardoz, Madrid (Spain); Bejar, V. J. S.; Rebolo, R.; Acosta-Pulido, J. A.; Manchado, A.; Pena Ramirez, K. [Instituto de Astrofisica de Canarias, C/. Via Lactea s/n, E-38205 La Laguna, Tenerife (Spain); Goldman, B. [Max-Planck Institut fuer Astronomie, Koenigstuhl 17, D-69117 Heidelberg (Germany); Caballero, J. A., E-mail: mosorio@cab.inta-csic.es, E-mail: vbejar@iac.es, E-mail: rrl@iac.es, E-mail: jaa@iac.es, E-mail: amt@iac.es, E-mail: karla@iac.es, E-mail: goldman@mpia.de, E-mail: caballero@cab.inta-csic.es [Centro de Astrobiologia (CSIC-INTA), P.O. Box 78, E-28691 Villanueva de la Canada, Madrid (Spain)

2011-10-10T23:59:59.000Z

297

New Near-Infrared Surface Brightness Fluctuation Models  

E-Print Network [OSTI]

We present new theoretical models for surface brightness fluctuations in the near-infrared. We show the time evolution of near-infrared brightness fluctuation properties over large age and metallicity ranges, i.e., from 12 Myr to 16 Gyr, and from Z/Zsun=1/50 to Z/Zsun=2.5, for single age, single metallicity stellar populations. All the stellar models are followed from the zero age main sequence to the central carbon ignition for massive stars, or to the end of the thermally pulsing regime of the asymptotic giant branch phase for low and intermediate mass stars. The new models are compared with observed near-infrared fluctuation absolute magnitudes and colours for a sample of Magellanic Cloud star clusters and Fornax Cluster galaxies. For star clusters younger than ~3 Gyr, the predicted near-infrared fluctuation properties are in a satisfactory agreement with observed ones over a wide range of stellar population metallicities. However, for older star clusters, the agreement between the observed and predicted near-IR brightness fluctuations depends on how the surface brightness absolute magnitudes are estimated. The computed set of models are not able to match the observed near-IR fluctuation absolute magnitudes and colours simultaneously. We argue that the observed discrepancies between the predicted and observed properties of old MC superclusters are more likely due to observational reasons.

M. Mouhcine; R. A. Gonzalez; M. C. Liu

2005-11-30T23:59:59.000Z

298

Efficient, Stable Infrared Photovoltaics Based on Solution-Cast Colloidal  

E-Print Network [OSTI]

's College Road, Toronto, Ontario M5S 3G4, Canada S olution-processed photovoltaics offer solar energy and optimized to this purpose. Organic solar cells have already achieved 6.5% solar conversion efficien- cies.6 multijunction solar cells offer the prospect of exceeding 40% efficiency7 through the inclusion of infrared

299

Infra-Red Process for Colour Fixation on Fabrics  

E-Print Network [OSTI]

characteristics : SHORT INFRARED Tungsten Filarrents in Vacuum I LAMPS TUBES I Glass or quartz bulbs I Quartz tubes Rear part reflectinq I rear, possibly, gilded Voltage : 127-220-380 Volts S::~ v,.~Olta:N'':,::'W Vi Available power : 250 I 5CX:W I...

Biau, D.; Raymond, D. J.

1983-01-01T23:59:59.000Z

300

Transparent, near-infrared organic photovoltaic solar cells for window and energy-scavenging applications  

E-Print Network [OSTI]

We fabricate near-infrared absorbing organic photovoltaics that are highly transparent to visible light. By optimizing near-infrared optical-interference, we demonstrate power efficiencies of 1.30.1% with simultaneous ...

Lunt, Richard R.

Note: This page contains sample records for the topic "geothermometry long-wave infrared" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Multi-mode two-dimensional infrared spectroscopy of peptides and proteins  

E-Print Network [OSTI]

In this thesis, a methodology for understanding structural stability of proteins through multi-mode two-dimensional infrared (2D IR) spectroscopy is developed. The experimental framework for generation of broadband infrared ...

DeFlores, Lauren P

2008-01-01T23:59:59.000Z

302

Ten years of software sustainability at the Infrared Processing and Analysis Center  

Science Journals Connector (OSTI)

...supported by the NASA Exoplanet Science Institute at the Infrared Processing...Space Administration's Earth Science Technology Office, Computation Technologies Project...maintained by the NASA/IPAC Infrared Science Archive. The modernization of...

2011-01-01T23:59:59.000Z

303

Collective Hydrogen Bond Reorganization in Water Studied with Temperature-Dependent Ultrafast Infrared Spectroscopy  

E-Print Network [OSTI]

We use temperature-dependent ultrafast infrared spectroscopy of dilute HOD in H2O to study the picosecond reorganization of the hydrogen bond network of liquid water. Temperature-dependent two-dimensional infrared (2D IR), ...

Nicodemus, Rebecca A.

304

Thermal infrared emission spectroscopy of titanium-enriched V. E. Hamilton  

E-Print Network [OSTI]

Thermal infrared emission spectroscopy of titanium-enriched pyroxenes V. E. Hamilton Hawai, Angra dos Reis, remote sensing Citation: Hamilton, V. E., Thermal infrared emission spectroscopy [Lyon, 1962], and emission [Hamilton, 1998, 2000] spectroscopic studies. These studies have documented

Hamilton, Victoria E.

305

E-Print Network 3.0 - aperture far-infrared safir Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

2010 March 14; accepted 0 0) Abstract The Far-Infrared Surveyor... spectrometer (FIS-FTS). FIS-FTS is the first space-borne imaging FTS dedicated to far-infrared...

306

E-Print Network 3.0 - akari infrared camera Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

BABA,1 Peter BARTHEL,2 David L. CLEMENTS,3... instruments, the Far-Infrared Surveyor (FIS; Kawada et al. 2007) and the Infrared Camera (IRC; Onaka et al... for spectroscopy: ...

307

E-Print Network 3.0 - akari space infrared Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Far-Infrared Imaging Fourier Transform Spectrometer Noriko Murakami1... spectrometer (FIS-FTS). FIS-FTS is the first space-borne imaging FTS dedicated to far-infrared...

308

E-Print Network 3.0 - akari far-infrared instrument Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

also have a capability for imaging... instruments, the Far-Infrared Surveyor (FIS; Kawada et al. 2007) and the Infrared Camera (IRC; Onaka et al... . AKARI has a 68.5 cm...

309

Time-Resolved Measurements of Near-Infrared Pulse Induced Ultrafast Optical Modulation of Quantum Cascade Lasers  

Science Journals Connector (OSTI)

We temporally resolve ultrafast modulation of quantum cascade lasers (QCLs) using a near-infrared pump mid-infrared probe technique. We compare interband and intersubband transition...

Cai, Hong; Liu, Sheng; Lalanne, Elaine; Guo, Dingkai; Chen, Xing; Wang, Xiaojun; Choa, Fow-Sen; Johnson, Anthony M

310

Near-Infrared Electrochromism in Electroactive Pentacenediquinone-Containing Poly(aryl ether)s  

E-Print Network [OSTI]

Near-Infrared Electrochromism in Electroactive Pentacenediquinone-Containing Poly(aryl etherVed October 21, 2005 The synthesis and near-infrared electrochromic properties of pentacenediquinone-infrared electrochromic properties of pentacenediquinone-containing poly(aryl ether)s were studied

Wan, Xin-hua

311

Near-Infrared Electrochromic and Electroluminescent Polymers Containing Pendant Ruthenium Complex Groups  

E-Print Network [OSTI]

Near-Infrared Electrochromic and Electroluminescent Polymers Containing Pendant Ruthenium ComplexVised Manuscript ReceiVed August 30, 2006 ABSTRACT: A series of near-infrared (NIR) electrochromic. All the polymers are near-infrared (NIR) electrochromic, displaying an intense absorption centered

Wan, Xin-hua

312

FRONTIER, MAGNETIC, ELLIPSOMETRIC AND TIME-RESOLVED INFRARED SPECTROSCOPY (FIS + MET)  

E-Print Network [OSTI]

FRONTIER, MAGNETIC, ELLIPSOMETRIC AND TIME-RESOLVED INFRARED SPECTROSCOPY (FIS + MET) SCIENTIFIC-resolved Frontier Infrared Spectroscopy (FIS) and Magnetic, Ellipsometric and Time-Resolved Infrared Spectroscopy Beamline Team STAFF Larry Carr: MET lead beamline scientist Zhenxian Liu (CIW): FIS lead beamline scientist

Ohta, Shigemi

313

Arduino Remote Infrared Network Adapter Rene Neff, Thomas Trimborn and Matthias Wubbeling  

E-Print Network [OSTI]

ARINA: Arduino Remote Infrared Network Adapter Ren´e Neff, Thomas Trimborn and Matthias W}@cs.uni-bonn.de Abstract In this paper we present ARINA, a light-weight Arduino based system for forwarding infrared signals via Ethernet. Short introductions on infrared communication and Arduino as a development platform

Behnke, Sven

314

Polarimetric Remote Sensing in the Visible to Near Infrared James R. Shell II  

E-Print Network [OSTI]

Polarimetric Remote Sensing in the Visible to Near Infrared by James R. Shell II B.S. Physics Title of Dissertation: Polarimetric Remote Sensing in the Visible to Near Infrared I, James R. Shell II Remote Sensing in the Visible to Near Infrared by James R. Shell II Submitted to the Chester F. Carlson

Salvaggio, Carl

315

Near-Infrared Fluorescent pH-Sensitive Probes via Unexpected Barbituric Acid  

E-Print Network [OSTI]

Near-Infrared Fluorescent pH-Sensitive Probes via Unexpected Barbituric Acid Mediated Synthesis achilefus@mir.wustl.edu Received October 13, 2008 ABSTRACT Novel near-infrared pyrimidine-fused p by 2D-NMR. All new compounds are highly fluorescent in the near-infrared region and possess excellent

Larson-Prior, Linda

316

Evaluation of Gender Classification Methods on Thermal and Near-infrared Face Images  

E-Print Network [OSTI]

Evaluation of Gender Classification Methods on Thermal and Near-infrared Face Images Cunjian Chen, the possibility of deducing gender from face images obtained in the near-infrared (NIR) and thermal (THM) spectra technologies, thermal and near-infrared images are beginning to be used in face- related applications

Ross, Arun Abraham

317

Near Infrared Dyes as Lifetime Solvatochromic Probes for Micropolarity Measurements of Biological Systems  

E-Print Network [OSTI]

Near Infrared Dyes as Lifetime Solvatochromic Probes for Micropolarity Measurements of Biological, metabolism, and excretion. With the recent widespread use of near-infrared (NIR) fluorescent dyes, ultraviolet/visible/near-infrared (NIR) absorption, and fluorescence (7,8) have been developed. The latter

Larson-Prior, Linda

318

Low Loss Liquid Crystal Photonic Bandgap Fiber in the Near-Infrared Region  

E-Print Network [OSTI]

Low Loss Liquid Crystal Photonic Bandgap Fiber in the Near-Infrared Region Lara SCOLARI1 , Lei WEI1 in the spectral range of 1­2 mm. We achieve in the middle of the near-infrared transmission bandgap the lowest Keywords: photonic bandgap fiber, liquid crystals, absorption loss, all-in-fiber devices, tunability, near-infrared

Wu, Shin-Tson

319

Investigation of the near-infrared spectral character of putative Martian chloride deposits  

E-Print Network [OSTI]

Investigation of the near-infrared spectral character of putative Martian chloride deposits Heidi B in near-infrared ratio spectra. It is hypothesized that the admixture of anhydrous chlorides or unoxidized of these deposits. Citation: Jensen, H. B., and T. D. Glotch (2011), Investigation of the near-infrared spectral

Glotch, Timothy D.

320

Chemistry & Biology A Near-Infrared BiFC Reporter for In Vivo Imaging  

E-Print Network [OSTI]

Chemistry & Biology Resource A Near-Infrared BiFC Reporter for In Vivo Imaging of Protein of genetically encoded fluorescent probes in near-infrared region for which mammalian tissues are the most transparent. We have used a near- infrared fluorescent protein iRFP engineered from a bacterial phytochrome

Verkhusha, Vladislav V.

Note: This page contains sample records for the topic "geothermometry long-wave infrared" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

Targeting Beta-3 Integrin Using a Linear Hexapeptide Labeled with a Near-Infrared Fluorescent Molecular  

E-Print Network [OSTI]

Targeting Beta-3 Integrin Using a Linear Hexapeptide Labeled with a Near-Infrared Fluorescent-peptides labeled with a near-infrared fluorescent probe (cypate) showed that rearranging the glycine in a linear, and physiopathologic processes mediated by this protein. Keywords: Integrin; cancer; near-infrared; imaging; molecular

Larson-Prior, Linda

322

STUDY OF TRANS-RECTAL NEAR-INFRARED DIFFUSE OPTICAL TOMOGRAPHY CONCURRENT  

E-Print Network [OSTI]

STUDY OF TRANS-RECTAL NEAR-INFRARED DIFFUSE OPTICAL TOMOGRAPHY CONCURRENT WITH TRANS of the requirements for the Degree of DOCTOR OF PHILOSOPHY May, 2010 #12;ii STUDY OF TRANS-RECTAL NEAR-INFRARED supported by the project Trans-rectal Near-Infrared Optical Tomography for Prostate Imaging from DOD

Piao, Daqing

323

Near-infrared femtosecond laser machining initiated by ultraviolet multiphoton ionization  

E-Print Network [OSTI]

Near-infrared femtosecond laser machining initiated by ultraviolet multiphoton ionization X. Yu, Q://apl.aip.org/features/most_downloaded Information for Authors: http://apl.aip.org/authors #12;Near-infrared femtosecond laser machining initiated, and the near-infrared pulse utilizes these electrons to cause damage by avalanche ionization. VC 2013 American

Van Stryland, Eric

324

Enhanced divergent thinking and creativity in musicians: A behavioral and near-infrared spectroscopy study  

E-Print Network [OSTI]

Enhanced divergent thinking and creativity in musicians: A behavioral and near-infrared 2008 Available online 23 August 2008 Keywords: Creativity Divergent thinking Prefrontal cortex Near-infrared participants, using behavioral tasks and near-infrared spectroscopy (NIRS). Experiment 1 examined convergent

Park, Sohee

325

Near-infrared spectroscopy measurement of the pulsatile component of cerebral blood flow and volume from  

E-Print Network [OSTI]

Near-infrared spectroscopy measurement of the pulsatile component of cerebral blood flow and volume, Massachusetts 02129 E-mail: themelis@nmr.mgh.harvard.edu Abstract. We describe a near-infrared spectroscopy NIRS-Optical Instrumentation Engineers. DOI: 10.1117/1.2710250 Keywords: cerebral blood flow; cerebral blood volume; near-infrared

326

Theoretical analysis of Si1xyGexCy near-infrared photodetectors  

E-Print Network [OSTI]

Theoretical analysis of Si1?x?yGexCy near-infrared photodetectors Baojun Li Zhongshan (Sun Yat and Engineering Cambridge, Massachusetts 02139 Abstract. A near-infrared waveguide photodetector in a Si-based ter, especially for SiGe with a high Ge fraction. To obtain sufficient absorption at near-infrared wavelengths

327

The Near-Infrared Tracks of Protostellar Outflows. A thesis submitted for the degree of  

E-Print Network [OSTI]

The Near-Infrared Tracks of Protostellar Outflows. A thesis submitted for the degree of Doctor of objects are described. In each case, the technique of near-infrared imaging is used in order to understand designed to study examples of very bright outflows in the near-infrared using the UFTI high

328

Near-Infrared Laser Absorption of Poly(vinyl chloride) at Elevated Temperatures  

E-Print Network [OSTI]

Near-Infrared Laser Absorption of Poly(vinyl chloride) at Elevated Temperatures James D. Van de Ven, unpigmented state are highly transmissive of light in the near-infrared range, thus allowing laser of light detection [2, 3]. Within the near-infrared region nat- ural polymers have nearly no absorption [2

Van de Ven, James D.

329

FEATURE ARTICLE Photoexcitation, Ionization, and Dissociation of Molecules Using Intense Near-Infrared  

E-Print Network [OSTI]

FEATURE ARTICLE Photoexcitation, Ionization, and Dissociation of Molecules Using Intense Near-Infrared The coupling mechanism between an intense (1013 W cm-2, 780 nm) near-infrared radiation field of duration 50 above threshold dissociation,3 multiple electron emission,4 and mo- lecular ionization using near-infrared

Levis, Robert J.

330

Biometric classifier update using online learning: A case study in near infrared face verification  

E-Print Network [OSTI]

Biometric classifier update using online learning: A case study in near infrared face verification 2010 Accepted 26 January 2010 Keywords: Biometrics Online learning Support vector machine Near infrared of the proposed online learning strategy is validated in a near infrared face verification application involving

Ross, Arun Abraham

331

Comparison of multivariate methods for inferential modeling of soil carbon using visible/near-infrared spectra  

E-Print Network [OSTI]

Comparison of multivariate methods for inferential modeling of soil carbon using visible/near-infrared Diffuse reflectance spectroscopy Visible/near-infrared spectroscopy Multivariate calibration Pre-processing transformations In order to reduce costs and time in the analysis of soil properties, visible/near-infrared

Grunwald, Sabine

332

Near-infrared electronic spectrum of CH2 Jennifer L. Gottfried and Takeshi Okaa)  

E-Print Network [OSTI]

Near-infrared electronic spectrum of CH2 ¿ Jennifer L. Gottfried and Takeshi Okaa) Department B1( u)X~ 2 A1 electronic transition of CH2 have been observed in the near infrared from 11 000. In this paper, we report the first observation of an elec- tronic transition of CH2 in the near infrared at 0

Oka, Takeshi

333

Near-Infrared Detection of Flow Injection Analysis by Acoustooptic Tunable Filter-Based  

E-Print Network [OSTI]

Near-Infrared Detection of Flow Injection Analysis by Acoustooptic Tunable Filter University, P.O. Box 1881, Milwaukee, Wisconsin 53201-1881 The instrumentation development of a near-infrared organic compounds absorb light in the near-infrared region, this AOTF-based near-IR detector can serve

Reid, Scott A.

334

Research report Bilateral near-infrared monitoring of the cerebral concentration and  

E-Print Network [OSTI]

Research report Bilateral near-infrared monitoring of the cerebral concentration and oxygen therapy (ECT). Non-invasive near infrared spectroscopy has previously been shown to reliably measure: Electro-convulsive therapy; Near-infrared spectroscopy; Seizure; Cerebral hemodynamics 1. Introduction

Boas, David

335

Automatic Skin Enhancement with Visible and Near-Infrared Image Fusion  

E-Print Network [OSTI]

Automatic Skin Enhancement with Visible and Near-Infrared Image Fusion Sabine Süsstrunk School and hemo- globin, the key components of skin color, have little absorp- tion in the near-infrared (NIR to the incident light's wavelength, we show that near-infrared images provide information that can be used

Salvaggio, Carl

336

Near-Infrared Reflectance Spectroscopy is a Rapid, Cost-Effective Predictor  

E-Print Network [OSTI]

Near-Infrared Reflectance Spectroscopy is a Rapid, Cost-Effective Predictor of Seagrass Nutrients + Business Media, Inc. 2006 Abstract Near-infrared reflectance spectroscopy was used to analyze nutrient com to the laboratory, and separated into leaf and root/rhizome fractions. They were dried, ground, and near-infrared

Marsh, Helene

337

THE NEAR-INFRARED SPECTRUM OF THE BROWN DWARF GLIESE 229B T. R. GEBALLE  

E-Print Network [OSTI]

THE NEAR-INFRARED SPECTRUM OF THE BROWN DWARF GLIESE 229B T. R. GEBALLE Joint Astronomy Centre, 660 vapor. Water and methane are both shown to be strong absorbers in the near-infrared spectrum. (1995) obtained a low-resolution ( / 2 150) near-infrared (1­2.5 m) spectrum of Gl 229B and found

Sloan, Gregory C.

338

Near-infrared spectroscopy of H3 above the barrier to linearity  

E-Print Network [OSTI]

Near-infrared spectroscopy of H3 ¿ above the barrier to linearity Jennifer L. Gottfried,a) Benjamin in absorption in the near infrared using a highly sensitive dual-beam, double-modulation technique weaker than the fundamental band,16 occur in the near- infrared region and were observed in absorption

Oka, Takeshi

339

RESEARCH OF RICE-QUALITY BASED ON COMPUTER VISION AND NEAR INFRARED  

E-Print Network [OSTI]

RESEARCH OF RICE-QUALITY BASED ON COMPUTER VISION AND NEAR INFRARED SPECTROSCOPY RuoKui Chang 1 was put forward based on near infrared(NIR) spectral technology. The NIR spectra were acquired from 13 grade of the unknown kinds of rice in the future. Key words: near-infrared spectroscopy; appearance

Boyer, Edmond

340

Near-Infrared Photodetector Enhanced by an Open-Sleeve Dipole Antenna  

E-Print Network [OSTI]

Near-Infrared Photodetector Enhanced by an Open- Sleeve Dipole Antenna Liang Tang, S. Ekin Kocabas-aperture-enhanced photodetector has been demonstrated at near infrared wavelengths based on this principle [6]. However, for easyITuD3.pdf #12;responsivity at near-infrared wavelengths and its compatibility with Si technology

Miller, David A. B.

Note: This page contains sample records for the topic "geothermometry long-wave infrared" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

Near-infrared spectral mapping of Titan's mountains and channels Jason W. Barnes,1,2  

E-Print Network [OSTI]

Near-infrared spectral mapping of Titan's mountains and channels Jason W. Barnes,1,2 Jani Radebaugh bright spectral units based on our findings. Citation: Barnes, J. W., et al. (2007), Near-infrared ranges on Titan using data from Cassini's Visual and Infrared Mapping Spectrometer (VIMS) obtained during

Perfect, Ed

342

Getting simultaneous red and near infrared bands from a single digital camera for plant monitoring applications  

E-Print Network [OSTI]

Getting simultaneous red and near infrared bands from a single digital camera for plant monitoring including red and near-infrared bands have proved their efficiency for vegetation-soil discrimination an original solution to obtain simultaneously the near-infrared and red bands from a standard RGB camera

Paris-Sud XI, Université de

343

Determination of Enantiomeric Compositions of Amino Acids by Near-Infrared Spectrometry  

E-Print Network [OSTI]

Determination of Enantiomeric Compositions of Amino Acids by Near-Infrared Spectrometry through for the determination of enantiomeric compositions of a variety of compounds. The method is based on the use of the near-infrared and sensitively determining enantiomeric purity of all types of compounds is, therefore, needed. A near-infrared

Reid, Scott A.

344

Information content of near-infrared spaceborne multiangular polarization measurements for  

E-Print Network [OSTI]

Information content of near-infrared spaceborne multiangular polarization measurements for aerosol; revised 1 May 2007; accepted 21 May 2007; published 25 July 2007. [1] The information content of near-infrared: Lebsock, M. D., T. S. L'Ecuyer, and G. L. Stephens (2007), Information content of near-infrared spaceborne

Stephens, Graeme L.

345

Using sheep preference, near infrared reflectance and laboratory tests for predicting voluntary intake  

E-Print Network [OSTI]

Using sheep preference, near infrared reflectance and laboratory tests for predicting voluntary for grinding ; N, NDF, ADF ; in vitro DMD ; and 4 promising second derivatives of the near infrared spectrum in VDMI, gas production methods lose their predictive ability in favour of in sacco methods. Near Infrared

Boyer, Edmond

346

Determination of Monomethylhydrazine with a High-Throughput, All-Fiber Near-Infrared  

E-Print Network [OSTI]

Determination of Monomethylhydrazine with a High-Throughput, All-Fiber Near-Infrared Spectrometer-throughput near-infrared spectrophotometer has been successfully constructed by synergistic use of this integrated and wide spectral band- width in the near-infrared region from 1500 to 1600 nm. This spectral region

Reid, Scott A.

347

NREL experiments show that disordered inverse opals significantly scatter and trap near-infrared light, with  

E-Print Network [OSTI]

NREL experiments show that disordered inverse opals significantly scatter and trap near-infrared wavelengths in the near-infrared (NIR), which is important to a number of technologies. This discovery.neale@nrel.gov Reference: N.R. Neale, B.G. Lee, S.H. Kang, and A.J. Frank."Near-Infrared Light Trapping in Disordered

348

The Accuracy of Near Infrared Spectroscopy and Imaging during Focal Changes in Cerebral Hemodynamics  

E-Print Network [OSTI]

The Accuracy of Near Infrared Spectroscopy and Imaging during Focal Changes in Cerebral January 21, 2000; published online November 7, 2000 Near infrared spectroscopy (NIRS) can detect changes arterial pulsation (1,2). Near infrared spectros- copy (NIRS) was developed to measure average tissue

349

Enhancing Photographs with Near Infrared Images Xiaopeng Zhang, Terence Sim, Xiaoping Miao  

E-Print Network [OSTI]

Enhancing Photographs with Near Infrared Images Xiaopeng Zhang, Terence Sim, Xiaoping Miao School of Computing National University of Singapore {zhangxi7,tsim,miaoxiao}@comp.nus.edu.sg Abstract Near Infra-Red, and the dynamic range of RAW format is still quite limited. In contrast, our method uses Near Infrared (NIR) light

Sim, Terence

350

Evidence for Kinetic Inhomogeneity in the Curing of Epoxy Using the Near-Infrared Multispectral  

E-Print Network [OSTI]

Evidence for Kinetic Inhomogeneity in the Curing of Epoxy Using the Near-Infrared Multispectral a near-infrared (NIR) multispectral imaging spectrometer. This imaging spectrometer is capable number of pixels were used. The near-infrared (NIR) technique has been used extensively in recent years

Reid, Scott A.

351

SERS-Coded Gold Nanorods as a Multifunctional Platform for Densely Multiplexed Near-Infrared  

E-Print Network [OSTI]

SERS-Coded Gold Nanorods as a Multifunctional Platform for Densely Multiplexed Near-Infrared. In this work, we show that the near-infrared plasmon resonance of gold nanorods (NRs) may be exploited in the near-infrared, a spectral multiplexing density over an order of magnitude greater than attainable

Bhatia, Sangeeta

352

Application of near-infrared spectroscopy for discrimination of mental A. Sassarolia  

E-Print Network [OSTI]

Application of near-infrared spectroscopy for discrimination of mental workloads A. Sassarolia , F, McLean Hospital, Belmont, MA 02478 ABSTRACT We show the potential of functional near-infrared of electroencephalography. Keywords: functional near-infrared spectroscopy, brain imaging, mental workload, human computer

Jacob, Robert J.K.

353

Remote sensing of Greenland ice sheet using multispectral near-infrared and visible radiances  

E-Print Network [OSTI]

Remote sensing of Greenland ice sheet using multispectral near-infrared and visible radiances Petr remote-sensing algorithm that utilizes reflected visible and near-infrared radiation to discriminate using multispectral near-infrared and visible radiances, J. Geophys. Res., 112, D24S20, doi:10

Dozier, Jeff

354

Near-Infrared Spectrometric Determination of Di-and Tripeptides Synthesized by a Combinatorial  

E-Print Network [OSTI]

Near-Infrared Spectrometric Determination of Di- and Tripeptides Synthesized by a Combinatorial.O. Box 1881, Milwaukee, Wisconsin 53201 A new method based on near-infrared (NIR) spectrometry of reaction kinetics.1-3 To date, near- and middle-infrared methods are probably the most promising technique

Reid, Scott A.

355

Hemodynamic evoked response of the sensorimotor cortex measured noninvasively with near-infrared  

E-Print Network [OSTI]

Hemodynamic evoked response of the sensorimotor cortex measured noninvasively with near-infrared emerging technique, near-infrared spectroscopy (NIRS) has been demonstrated to be an effective tool probe the human brain cortex using near-infrared light, and to monitor the cerebral concentration

356

Human-Computer Interaction and Brain Measurement Using Functional Near-Infrared Spectroscopy  

E-Print Network [OSTI]

Human-Computer Interaction and Brain Measurement Using Functional Near-Infrared Spectroscopy Leanne Functional near-infrared spectroscopy (fNIRS) is an emerging non-invasive, lightweight imaging tool which can remains a challenge. We investigate functional near-infrared spectroscopy (fNIRS) [1], a relatively new

Jacob, Robert J.K.

357

Visualizing Chemical Compositions and Kinetics of Sol-Gel by Near-Infrared Multispectral Imaging  

E-Print Network [OSTI]

Visualizing Chemical Compositions and Kinetics of Sol-Gel by Near-Infrared Multispectral Imaging, Milwaukee, Wisconsin 53201 Kinetics of sol-gel formation were studied using the recently developed near-infrared been studied extensively by many different spectroscopic techniques.4-15 Among them, the near-infrared

Reid, Scott A.

358

Performance of new infrared beamline U12IR at the National Synchrotron Light Source  

E-Print Network [OSTI]

frequency limit of 2 cm 1 i.e., 60 GHz or a photon energy of 250 eV . The infrared light from infrared beamline at the NSLS and, with increasing demand for measurement time, has been followed by a series of new infrared ports presently under construction and com- missioning. This also allowed for some

Tanner, David B.

359

Thermal And-Or Near Infrared At Fish Lake Valley Area (Deymonaz, Et Al.,  

Open Energy Info (EERE)

Thermal And-Or Near Infrared At Fish Lake Valley Area (Deymonaz, Et Al., Thermal And-Or Near Infrared At Fish Lake Valley Area (Deymonaz, Et Al., 2008) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Thermal And-Or Near Infrared At Fish Lake Valley Area (Deymonaz, Et Al., 2008) Exploration Activity Details Location Fish Lake Valley Area Exploration Technique Thermal And-Or Near Infrared Activity Date Usefulness not indicated DOE-funding Unknown Notes For this project, fused imagery was created using ASTER data and USGS Digital Orthophoto Quandrangles (DOQs). The ASTER data have a spatial resolution of 15 m for the visible to infrared and near_infrared bands, and 30 m for shortwave_infrared bands; with a cost of $85.00 per 60 x 60 km image. Thermal anomalies were mapped using ASTER kinetic temperature data

360

Direct Aerosol Forcing in the Infrared at the SGP Site?  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Direct Aerosol Forcing in the Infrared at the SGP Site? Direct Aerosol Forcing in the Infrared at the SGP Site? D. D. Turner and C. N. Long Pacific Northwest National Laboratory Richland, Washington Introduction Low level haze is often observed during the night and early morning hours in many locations. This haze is typically formed during quiescent conditions by radiative cooling of the surface, which lowers the ambient temperature and consequently increases the near-surface relative humidity (RH). Many aerosols start to deliquesce around 75% relative humidity (RH) (depending on their chemical composition), and thus if the near surface RH increases above this level, haze will form. The Atmospheric Radiation Measurement (ARM) Program's ultimate goal, stated simply, is to improve the treatment of radiative transfer in global climate models. Global climate models typically do not

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361

ARM - Publications: Science Team Meeting Documents: Validation of infrared  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Validation of infrared cloud radiative transfer simulations and spectral Validation of infrared cloud radiative transfer simulations and spectral cloud properties retrievals using S-HIS, AERI and HSRL measurements from M-PACE Holz, Robert University of Wisconsin, CIMMS DeSlover, Daniel University of Wisconsin Revercomb, Henry University Of Wisconsin-Madison Tobin, David University of Wisconsin-Madison Knuteson, Robert University Of Wisconsin Turner, David Pacific Northwest National Laboratory Eloranta, Edwin University of Wisconsin As part of the Mixed-Phase Arctic Cloud Experiment (M-PACE) the Scanning High spectral resolution Interferometer Sounder (S-HIS) flew on the Proteus high altitude aircraft with the ARM-UAV instrumentation. The University of North Dakota Cessna Citation capable of cloud situ measurements was coordinated with the Proteus to obtain coincident down looking and situ

362

Factors affecting thermal infrared images at selected field sites  

SciTech Connect (OSTI)

A thermal infrared (TIR) survey was conducted to locate surface ordnance in and around the Naval Ordnance Disposal Area, and a thermal anomaly was found. This report documents studies conducted to identify the position of cause of the thermal anomaly. Also included are results of a long path Fourier transform infrared survey, soil sampling activities, soil gas surveys, and buried heater studies. The results of these studies indicated that the thermal anomaly was caused by a gravel pad, which had thermal properties different than those of the surrounding soil. Results from this investigation suggest that TIR is useful for locating surface objects having a high thermal inertia compared to the surrounding terrain, but TIR is of very limited use for characterizing buried waste or other similar buried objects at the INEL.

Sisson, J.B.; Ferguson, J.S.

1993-07-01T23:59:59.000Z

363

Infrared behavior of dynamical fermion mass generation in QED$_{3}$  

E-Print Network [OSTI]

Extensive investigations show that QED$_{3}$ exhibits dynamical fermion mass generation at zero temperature when the fermion flavor $N$ is sufficiently small. However, it seems difficult to extend the theoretical analysis to finite temperature. We study this problem by means of Dyson-Schwinger equation approach after considering the effect of finite temperature or disorder-induced fermion damping. Under the widely used instantaneous approximation, the dynamical mass displays an infrared divergence in both cases. We then adopt a new approximation that includes an energy-dependent gauge boson propagator and obtain results for dynamical fermion mass that do not contain infrared divergence. The validity of the new approximation is examined by comparing to the well-established results obtained at zero temperature.

Wang, Jing-Rong; Zhang, Chang-Jin

2015-01-01T23:59:59.000Z

364

Non-destructive component separation using infrared radiant energy  

DOE Patents [OSTI]

A method for separating a first component and a second component from one another at an adhesive bond interface between the first component and second component. Typically the method involves irradiating the first component with infrared radiation from a source that radiates substantially only short wavelengths until the adhesive bond is destabilized, and then separating the first component and the second component from one another. In some embodiments an assembly of components to be debonded is placed inside an enclosure and the assembly is illuminated from an IR source that is external to the enclosure. In some embodiments an assembly of components to be debonded is simultaneously irradiated by a multi-planar array of IR sources. Often the IR radiation is unidirectional. In some embodiments the IR radiation is narrow-band short wavelength infrared radiation.

Simandl, Ronald F. (Knoxville, TN); Russell, Steven W. (Knoxville, TN); Holt, Jerrid S. (Knoxville, TN); Brown, John D. (Harriman, TN)

2011-03-01T23:59:59.000Z

365

Synchrotron Infrared Measurements of Dense Hydrogen to 360GPa  

Science Journals Connector (OSTI)

Diamond-anvil-cell techniques have been developed to confine and measure hydrogen samples under static conditions to pressures above 300GPa from 12 to 300K using synchrotron infrared and optical absorption techniques. A decreasing absorption threshold in the visible spectrum is observed, but the material remains transparent at photon energies down to 0.1eV at pressures to 360GPa over a broad temperature range. The persistence of the strong infrared absorption of the vibron characteristic of phase III indicates the stability of the paired state of hydrogen. There is no evidence for the predicted metallic state over these conditions, in contrast to recent reports, but electronic properties consistent with semimetallic behavior are observed.

Chang-Sheng Zha, Zhenxian Liu, and Russell J. Hemley

2012-04-03T23:59:59.000Z

366

Near-infrared photodetector with reduced dark current  

DOE Patents [OSTI]

A photodetector is disclosed for the detection of near-infrared light with a wavelength in the range of about 0.9-1.7 microns. The photodetector, which can be formed as either an nBp device or a pBn device on an InP substrate, includes an InGaAs light-absorbing layer, an InAlGaAs graded layer, an InAlAs or InP barrier layer, and an InGaAs contact layer. The photodetector can detect near-infrared light with or without the use of an applied reverse-bias voltage and is useful as an individual photodetector, or to form a focal plane array.

Klem, John F; Kim, Jin K

2012-10-30T23:59:59.000Z

367

FAR-INFRARED FINE-STRUCTURE LINE DIAGNOSTICS OF ULTRALUMINOUS INFRARED GALAXIES  

SciTech Connect (OSTI)

We present Herschel observations of 6 fine-structure lines in 25 ultraluminous infrared galaxies at z < 0.27. The lines, [O III]52 ?m, [N III]57 ?m, [O I]63 ?m, [N II]122 ?m, [O I]145 ?m, and [C II]158 ?m, are mostly single Gaussians with widths <600 km s{sup 1} and luminosities of 10{sup 7}-10{sup 9} L{sub ?}. There are deficits in the [O I]63/L{sub IR}, [N II]/L{sub IR}, [O I]145/L{sub IR}, and [C II]/L{sub IR} ratios compared to lower luminosity systems. The majority of the line deficits are consistent with dustier H II regions, but part of the [C II] deficit may arise from an additional mechanism, plausibly charged dust grains. This is consistent with some of the [C II] originating from photodissociation regions or the interstellar medium (ISM). We derive relations between far-IR line luminosities and both the IR luminosity and star formation rate. We find that [N II] and both [O I] lines are good tracers of the IR luminosity and star formation rate. In contrast, [C II] is a poor tracer of the IR luminosity and star formation rate, and does not improve as a tracer of either quantity if the [C II] deficit is accounted for. The continuum luminosity densities also correlate with the IR luminosity and star formation rate. We derive ranges for the gas density and ultraviolet radiation intensity of 10{sup 1} < n < 10{sup 2.5} and 10{sup 2.2} < G{sub 0} < 10{sup 3.6}, respectively. These ranges depend on optical type, the importance of star formation, and merger stage. We do not find relationships between far-IR line properties and several other parameters: active galactic nucleus (AGN) activity, merger stage, mid-IR excitation, and SMBH mass. We conclude that these far-IR lines arise from gas heated by starlight, and that they are not strongly influenced by AGN activity.

Farrah, D.; Petty, S. M.; Harris, K. [Department of Physics, Virginia Tech, Blacksburg, VA 24061 (United States); Lebouteiller, V.; Spoon, H. W. W. [Cornell University, CRSR, Space Sciences Building, Ithaca, NY 14853 (United States); Bernard-Salas, J.; Pearson, C. [Department of Physics and Astronomy, The Open University, Milton Keynes MK7 6AA (United Kingdom); Rigopoulou, D. [RAL Space, Rutherford Appleton Laboratory, Harwell, Oxford OX11 0QX (United Kingdom); Smith, H. A. [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States); Gonzlez-Alfonso, E. [Universidad de Alcal, Departamento de Fsica y Matemticas, Campus Universitario, E-28871 Alcal de Henares, Madrid (Spain); Clements, D. L. [Physics Department, Imperial College London, Prince Consort Road, London SW7 2AZ (United Kingdom); Efstathiou, A. [School of Sciences, European University Cyprus, Diogenes Street, Engomi, 1516 Nicosia (Cyprus); Cormier, D. [Institut fr theoretische Astrophysik, Zentrum fr Astronomie der Universitt Heidelberg, Albert-Ueberle Str. 2, D-69120 Heidelberg (Germany); Afonso, J. [Centro de Astronomia e Astrofsica da Universidade de Lisboa, Observatrio Astronmico de Lisboa, Tapada da Ajuda, 1349-018 Lisbon (Portugal); Hurley, P. [Department of Physics and Astronomy, University of Sussex, Falmer, Brighton BN1 9QH (United Kingdom); Borys, C. [Infrared Processing and Analysis Center, MS220-6, California Institute of Technology, Pasadena, CA 91125 (United States); Verma, A. [Oxford Astrophysics, Denys Wilkinson Building, University of Oxford, Keble Rd, Oxford OX1 3RH (United Kingdom); Cooray, A.; Salvatelli, V. [Department of Physics and Astronomy, University of California, Irvine, CA 92697 (United States)

2013-10-10T23:59:59.000Z

368

THE INFRARED SPECTROSCOPY OF NEUTRAL POLYCYCLIC AROMATIC HYDROCARBON CLUSTERS  

SciTech Connect (OSTI)

The mid-infrared spectra of neutral homogeneous polycyclic aromatic hydrocarbon (PAH) clusters have been computed using density functional theory including an empirical correction for dispersion. The C-H out-of-plane bending modes are redshifted for all the clusters considered in this work. The magnitude of the redshift and the peak broadening are dependent on PAH size, shape, and on the PAH arrangement in the cluster.

Ricca, Alessandra [Carl Sagan Center, SETI Institute, 189 Bernardo Avenue, Suite 100, Mountain View, CA 94043 (United States); Bauschlicher, Charles W. Jr. [Entry Systems and Technology Division, Mail Stop 230-3, NASA Ames Research Center, Moffett Field, CA 94035 (United States); Allamandola, Louis J., E-mail: Alessandra.Ricca-1@nasa.gov, E-mail: Charles.W.Bauschlicher@nasa.gov [Space Science Division, Mail Stop 245-6, NASA Ames Research Center, Moffett Field, CA 94035 (United States)

2013-10-10T23:59:59.000Z

369

Convective rainfall estimation from digital GOES-1 infrared data  

E-Print Network [OSTI]

cloud cover which provided valuable information on global heat balance and water vapor distribution. Furthermore, the TIROS series provided the meteorologist with almost real time photographs of weather systems and permitted early detection... by Scofield and Oliver (1977) using Geostationary Operational Environmental Satel- lite (GOES) VIS and enhanced infrared (EIR) imagery. Recently, Scofield (1978a, 1978b) emphasized the practical applications of the GOES-1 VIS and EIR imagery to detect...

Sickler, Gary L

1979-01-01T23:59:59.000Z

370

INFRARED SPECTROSCOPY OF NEARBY RADIO ACTIVE ELLIPTICAL GALAXIES  

SciTech Connect (OSTI)

In preparation for a study of their circumnuclear gas we have surveyed 60% of a complete sample of elliptical galaxies within 75 Mpc that are radio sources. Some 20% of our nuclear spectra have infrared emission lines, mostly Paschen lines, Brackett {gamma}, and [Fe II]. We consider the influence of radio power and black hole mass in relation to the spectra. Access to the spectra is provided here as a community resource.

Mould, Jeremy [Centre for Astrophysics and Supercomputing Swinburne University, Hawthorn, Vic 3122 (Australia); Reynolds, Tristan [School of Physics, University of Melbourne, Melbourne, Vic 3100 (Australia); Readhead, Tony; Matthews, Keith [Palomar Observatory, California Institute of Technology 249-17, Pasadena, CA 91125 (United States); Floyd, David; Brown, Michael [School of Physics, Monash University, Clayton, Vic 3800 (Australia); Jannuzi, Buell; Atlee, David [Steward Observatory, University of Arizona (formerly at NOAO), Tucson, AZ 85719 (United States); Cotter, Garret [Department of Physics, University of Oxford, Denys, Oxford, Keble Road, OX13RH (United Kingdom); Ferrarese, Laura, E-mail: jmould@swin.edu.au [Herzberg Institute of Astrophysics Herzberg, Saanich Road, Victoria V8X4M6 (Canada)

2012-11-15T23:59:59.000Z

371

MODELING MID-INFRARED DIAGNOSTICS OF OBSCURED QUASARS AND STARBURSTS  

SciTech Connect (OSTI)

We analyze the link between active galactic nuclei (AGNs) and mid-infrared flux using dust radiative transfer calculations of starbursts realized in hydrodynamical simulations. Focusing on the effects of galaxy dust, we evaluate diagnostics commonly used to disentangle AGN and star formation in ultraluminous infrared galaxies (ULIRGs). We examine these quantities as a function of time, viewing angle, dust model, AGN spectrum, and AGN strength in merger simulations representing two possible extremes of the ULIRG population: one is a typical gas-rich merger at z {approx} 0, and the other is characteristic of extremely obscured starbursts at z {approx} 2-4. This highly obscured burst begins star-formation-dominated with significant polycyclic aromatic hydrocarbon (PAH) emission, and ends with a {approx}10{sup 9} yr period of red near-IR colors. At coalescence, when the AGN is most luminous, dust obscures the near-infrared AGN signature, reduces the relative emission from PAHs, and enhances the 9.7 {mu}m absorption by silicate grains. Although generally consistent with previous interpretations, our results imply none of these indicators can unambiguously estimate the AGN luminosity fraction in all cases. Motivated by the simulations, we show that a combination of the extinction feature at 9.7 {mu}m, the PAH strength, and a near-infrared slope can simultaneously constrain the AGN fraction and dust grain distribution for a wide range of obscuration. We find that this indicator, accessible to the James Webb Space Telescope, may estimate the AGN power as tightly as the hard X-ray flux alone, thereby providing a valuable future cross-check and constraint for large samples of distant ULIRGs.

Snyder, Gregory F.; Jonsson, Patrik; Hernquist, Lars [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States); Hayward, Christopher C. [Heidelberger Institut fuer Theoretische Studien, Schloss-Wolfsbrunnenweg 35, D-69118 Heidelberg (Germany); Sajina, Anna [Department of Physics and Astronomy, Tufts University, 4 Colby Street, Medford, MA 02155 (United States); Cox, Thomas J. [Carnegie Observatories, 813 Santa Barbara Street, Pasadena, CA 91101 (United States); Hopkins, Philip F. [Department of Astronomy, University of California at Berkeley, C-208 Hearst Field Annex, Berkeley, CA 94720 (United States); Yan Lin, E-mail: gsnyder@cfa.harvard.edu [Infrared Processing and Analysis Center, California Institute of Technology, Pasadena, CA 91125 (United States)

2013-05-10T23:59:59.000Z

372

Airborne Infrared Target Tracking with the Nintendo Wii Remote Sensor  

E-Print Network [OSTI]

to target. 3.2 Design Rather than design for a particular distance, the highest-output available infrared source was selected for the beacon: a 500 W quartz tungsten halogen incandescent lamp. Determining the radiant power in the detectable spectrum...://terpconnect.umd.edu/ toh/models/Blackbody.html. [17] Forsythe, W. and Worthing, A., \\The Properties of Tungsten and the Character- istics of Tungsten Lamps," Astrophysics Journal , Vol. 61, April 1925, pp. 146{ 185. 34 ...

Beckett, Andrew 1984-

2012-11-12T23:59:59.000Z

373

THE COSMIC INFRARED BACKGROUND EXPERIMENT (CIBER): THE LOW RESOLUTION SPECTROMETER  

SciTech Connect (OSTI)

Absolute spectrophotometric measurements of diffuse radiation at 1 {mu}m to 2 {mu}m are crucial to our understanding of the radiative content of the universe from nucleosynthesis since the epoch of reionization, the composition and structure of the zodiacal dust cloud in our solar system, and the diffuse galactic light arising from starlight scattered by interstellar dust. The Low Resolution Spectrometer (LRS) on the rocket-borne Cosmic Infrared Background Experiment is a {lambda}/{Delta}{lambda} {approx} 15-30 absolute spectrophotometer designed to make precision measurements of the absolute near-infrared sky brightness between 0.75 {mu}m <{lambda} < 2.1 {mu}m. This paper presents the optical, mechanical, and electronic design of the LRS, as well as the ground testing, characterization, and calibration measurements undertaken before flight to verify its performance. The LRS is shown to work to specifications, achieving the necessary optical and sensitivity performance. We describe our understanding and control of sources of systematic error for absolute photometry of the near-infrared extragalactic background light.

Tsumura, K.; Arai, T.; Matsumoto, T.; Matsuura, S.; Murata, K. [Department of Space Astronomy and Astrophysics, Institute of Space and Astronoutical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara, Kanagawa 252-5210 (Japan); Battle, J.; Bock, J. [Jet Propulsion Laboratory (JPL), National Aeronautics and Space Administration (NASA), Pasadena, CA 91109 (United States); Brown, S.; Lykke, K.; Smith, A. [Optical Technology Division, National Institute of Standards and Technology (NIST), Gaithersburg, MD 20899 (United States); Cooray, A. [Center for Cosmology, University of California, Irvine, Irvine, CA 92697 (United States); Hristov, V.; Levenson, L. R.; Mason, P. [Department of Astronomy, California Institute of Technology, Pasadena, CA 91125 (United States); Keating, B.; Renbarger, T. [Department of Physics, University of California, San Diego, San Diego, CA 92093 (United States); Kim, M. G. [Department of Physics and Astronomy, Seoul National University, Seoul 151-742 (Korea, Republic of); Lee, D. H.; Nam, U. W. [Korea Astronomy and Space Science Institute (KASI), Daejeon 305-348 (Korea, Republic of); Sullivan, I., E-mail: tsumura@ir.isas.jaxa.jp [Department of Physics, The University of Washington, Seattle, WA 98195 (United States); and others

2013-08-15T23:59:59.000Z

374

SEASONAL DISAPPEARANCE OF FAR-INFRARED HAZE IN TITAN'S STRATOSPHERE  

SciTech Connect (OSTI)

A far-infrared emission band attributed to volatile or refractory haze in Titan's stratosphere has been decreasing in intensity since Cassini's arrival in 2004. The 220 cm{sup -1} feature, first seen by the Voyager Infrared Interferometer Spectrometer, has only been found in Titan's winter polar region. The emission peaks at about 140 km altitude near the winter stratospheric temperature minimum. Observations recorded over the period 2004-2012 by the Composite Infrared Spectrometer on Cassini show a decrease in the intensity of this feature by about a factor of four. Possible seasonal causes of this decline are an increase in photolytic destruction of source chemicals at high altitude, a lessening of condensation as solar heating increased, or a weakening of downwelling of vapors. As of early 2012, the 220 cm{sup -1} haze has not yet been detected in the south. The haze composition is unknown, but its decrease is similar to that of HC{sub 3}N gas in Titan's polar stratosphere, pointing to a nitrile origin.

Jennings, Donald E.; Anderson, C. M.; Flasar, F. M.; Cottini, V. [Goddard Space Flight Center, Greenbelt, MD 20771 (United States); Samuelson, R. E.; Nixon, C. A.; Kunde, V. G.; Achterberg, R. K. [Department of Astronomy, University of Maryland, College Park, MD 20742 (United States); De Kok, R. [SRON Netherlands Institute for Space Research, Sorbonnelaan 2, 3584 CA Utrecht (Netherlands); Coustenis, A.; Vinatier, S. [LESIA, Observatoire de Paris-Meudon, 92195 Meudon Cedex (France); Calcutt, S. B., E-mail: donald.e.jennings@nasa.gov [Department of Physics, University of Oxford, Parks Road, Oxford OX1 3PU (United Kingdom)

2012-07-20T23:59:59.000Z

375

STUDIES OF SOLAR WHITE-LIGHT FLARES AND SMALL-SCALE MAGNETIC STRUCTURES OBSERVED IN THE NEAR INFRARED  

E-Print Network [OSTI]

IN THE NEAR INFRARED by Yan Xu Using the most advanced infrared imaging technology as developed by NJIT, are presented in this dissertation. The investigations focus on near-infrared observations at 1.56 µm, which of near infrared (NIR) solar physics: (1) the first detection and understanding of white-light flares

376

TESTING THE HYPOTHESIS THAT METHANOL MASER RINGS TRACE CIRCUMSTELLAR DISKS: HIGH-RESOLUTION NEAR-INFRARED AND MID-INFRARED IMAGING  

SciTech Connect (OSTI)

Milliarcsecond very long baseline interferometry maps of regions containing 6.7 GHz methanol maser emission have lead to the recent discovery of ring-like distributions of maser spots and the plausible hypothesis that they may be tracing circumstellar disks around forming high-mass stars. We aimed to test this hypothesis by imaging these regions in the near- and mid-infrared at high spatial resolution and compare the observed emission to the expected infrared morphologies as inferred from the geometries of the maser rings. In the near-infrared we used the Gemini North adaptive optics system of ALTAIR/NIRI, while in the mid-infrared we used the combination of the Gemini South instrument T-ReCS and super-resolution techniques. Resultant images had a resolution of {approx}150 mas in both the near-infrared and mid-infrared. We discuss the expected distribution of circumstellar material around young and massive accreting (proto)stars and what infrared emission geometries would be expected for the different maser ring orientations under the assumption that the masers are coming from within circumstellar disks. Based upon the observed infrared emission geometries for the four targets in our sample and the results of spectral energy distribution modeling of the massive young stellar objects associated with the maser rings, we do not find compelling evidence in support of the hypothesis that methanol masers rings reside in circumstellar disks.

De Buizer, James M. [Stratospheric Observatory for Infrared Astronomy-USRA, NASA Ames Research Center, MS N232-12, Moffett Field, CA 94035 (United States); Bartkiewicz, Anna; Szymczak, Marian, E-mail: jdebuizer@sofia.usra.edu [Torun Centre for Astronomy, Nicolaus Copernicus University, Gagarina 11, 87-100 Torun (Poland)

2012-08-01T23:59:59.000Z

377

Apparatus and method for transient thermal infrared spectrometry of flowable enclosed materials  

DOE Patents [OSTI]

A method and apparatus for enabling analysis of a flowable material enclosed in a transport system having an infrared transparent wall portion. A temperature differential is transiently generated between a thin surface layer portion of the material and a lower or deeper portion of the material sufficient to alter the thermal infrared emission spectrum of the material from the black-body thermal infrared emission spectrum of the material, and the altered thermal infrared emission spectrum is detected through the infrared transparent portion of the transport system while the altered thermal infrared emission spectrum is sufficiently free of self-absorption by the material of emitted infrared radiation. The detection is effected prior to the temperature differential propagating into the lower or deeper portion of the material to an extent such that the altered thermal infrared emission spectrum is no longer sufficiently free of self-absorption by the material of emitted infrared radiation. By such detection, the detected altered thermal infrared emission spectrum is indicative of characteristics relating to molecular composition of the material.

McClelland, John F. (Ames, IA); Jones, Roger W. (Ames, IA)

1993-03-02T23:59:59.000Z

378

Thermal And-Or Near Infrared At Coso Geothermal Area (2009) | Open Energy  

Open Energy Info (EERE)

And-Or Near Infrared At Coso Geothermal Area (2009) And-Or Near Infrared At Coso Geothermal Area (2009) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Thermal And-Or Near Infrared At Coso Geothermal Area (2009) Exploration Activity Details Location Coso Geothermal Area Exploration Technique Thermal And-Or Near Infrared Activity Date 2009 Usefulness useful DOE-funding Unknown Exploration Basis Determine the importance of elevation and temperature inversions using thermal infrared satellite images Notes Examples of nighttime temperature inversions are shown in thermal infrared satellite images collected over the Coso geothermal field in eastern California. Temperature-elevation plots show the normal trend of temperature decrease with elevation, on which temperature inversions appear

379

Infrared Technology Trends and Implications to Home and Building Energy Use Efficiency  

Science Journals Connector (OSTI)

It has long been realized that infrared technology would have applicability in improving the energy efficiency of homes and buildings. Walls that are missing or are poorly insulated can be quickly evaluated by looking at the thermal images of these surfaces. Similarly air infiltration leaks under doors and around windows leave a telltale thermal signature easily seen in the infrared. The ability to view evaluate and quickly respond to these images has immediate benefits in addressing and correcting situations where these types of losses are occurring. The principle issue that has been limiting the use of infrared technology in these applications has been the lack of availability and accessibility of infrared technology at a cost point suited to this market. The emergence of low cost microbolometer based infrared cameras not needing sensor cooling will greatly increase the accessibility and use of infrared technology for House Doctor inspections. The technology cost for this use is projected to be less than $1 per inspection.

James T. Woolaway

2008-01-01T23:59:59.000Z

380

ADONIS high contrast infrared imaging of Sirius-B  

E-Print Network [OSTI]

Sirius is the brightest star in the sky and a strong source of diffuse light for modern telescopes so that the immediate surroundings of the star are still poorly known. We study the close surroundings of the star (2 to 25 arcsec) by means of adaptive optics and coronographic device in the near-infrared, using the ESO/ADONIS system. The resulting high contrast images in the JHKs bands have a resolution of ~ 0.2 arcsec and limiting apparent magnitude ranging from mK = 9.5 at 3 arcsec, from Sirius-A to mK = 13.1 at 10 arcsec. These are the first and deepest images of the Sirius system in this infrared range. From these observations, accurate infrared photometry of the Sirius-B white dwarf companion is obtained. The JH magnitudes of Sirius-B are found to agree with expectations for a DA white dwarf of temperature (T=25000K) and gravity (log(g) = 8.5), consistent with the characteristics determined from optical observations. However, a small, significant excess is measurable for the K band, similar to that detected for "dusty" isolated white dwarfs harbouring suspected planetary debris. The possible existence of such circumstellar material around Sirius-B has still to be confirmed by further observations. These deep images allow us to search for small but yet undetected companions to Sirius. Apart from Sirius-B, no other source is detected within the total 25 arcsec field. The minimum detectable mass is around 10 MJup inside the planetary limit, indicating that an extrasolar planet at a projected distance of ~ 25 AU from Sirius would have been detected (abridged abstract).

Jean-Marc Bonnet-Bidaud; Eric Pantin

2008-09-28T23:59:59.000Z

Note: This page contains sample records for the topic "geothermometry long-wave infrared" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Synthesis of materials with infrared and ultraviolet lasers  

SciTech Connect (OSTI)

This paper discusses three divergent examples of synthesis of materials with lasers. The three techniques are: (1) infrared (CO/sub 2/) laser synthesis of silane (SiH/sub 4/) from disilane (Si/sub 2/H/sub 6/); (2) excimer (ArF) laser production of fine silicon powders from methyl- and chloro-substituted silanes; and, (3) excimer (KrF) laser production of fine metallic powders by laser ablation. The mechanism for each process is discussed along with some conclusions about the features of the laser radiation that enable each application. 19 refs., 12 figs., 2 tabs.

Lyman, J.L.

1988-01-01T23:59:59.000Z

382

Optical Damage Threshold of Silicon for Ultrafast Infrared Pulses  

SciTech Connect (OSTI)

While silicon has several properties making it an attractive material for structure-based laser-driven acceleration, its optical damage threshold, a key parameter for high-gradient acceleration, has been unknown. Here we present measurements of the optical damage threshold of crystalline silicon for ultrafast pulses in the mid-infrared. The wavelengths tested span a range from the telecommunications band at 1550 nm extending longer toward the two-photon absorption threshold at around 2200 nm. We discuss the prevailing theories of ultrafast optical breakdown, describe the experimental setup and preliminary results, and propose a relevant performance parameter for candidate accelerator structures.

Cowan, B.; /SLAC

2006-09-07T23:59:59.000Z

383

Optical Damage Threshold of Silicon for Ultrafast Infrared Pulses  

SciTech Connect (OSTI)

We present measurements of the optical damage threshold of crystalline silicon in air for ultrafast pulses in the near infrared. The wavelengths tested span a range from the telecommunications band at 1550 nm, extending to 2260 nm. We discuss the motivation for the measurements and give theoretical context. We then describe the experimental setup, diagnostics, and procedure. The results show a breakdown threshold of 0.2J/cm{sup 2} at 1550 nm and 1.06 ps FWHM pulse duration, and a weak dependence on wavelength.

Cowan, Benjamin M.; /Tech-X, Boulder /SLAC

2007-11-28T23:59:59.000Z

384

Effect of graphene on plasmonic metasurfaces at infrared wavelengths  

SciTech Connect (OSTI)

Significant enhancement of infrared transmittance by the presence of a graphene layer on a plasmonic metasurface (PLM) has been demonstrated. PLMs with different configurations were fabricated, and their transmittance with and without graphene was compared. Selective enhancement by graphene occurred at the plasmon resonance wavelength. The degree of enhancement was found to depend on the width of the gap between the periodic metal regions in the PLM. A maximum enhancement of ?210% was achieved at a wavelength of 10 ?m. The ability to achieve such a drastic increase in transmittance at the plasmon resonant wavelength is expected to lead to improvements in the performance of energy collecting devices and optical sensors.

Ogawa, Shinpei, E-mail: Ogawa.Shimpei@eb.MitsubishiElectric.co.jp; Fujisawa, Daisuke; Ueno, Masashi [Advanced Technology R and D Center, Mitsubishi Electric Corporation, 8-1-1 Tsukaguchi-Honmachi, Amagasaki, Hyogo 661-8661 (Japan)] [Advanced Technology R and D Center, Mitsubishi Electric Corporation, 8-1-1 Tsukaguchi-Honmachi, Amagasaki, Hyogo 661-8661 (Japan)

2013-11-15T23:59:59.000Z

385

Comparison of ultraviolet and ultraviolet-infrared flame detection systems  

E-Print Network [OSTI]

detectors view a s1ngle area and a majority of detectors must sense a fire to signal an alarm) and time delay ci r- cu1ts, sensitivity adjustments, and integral self-test lamps and circuitry. Infrared detectors were improved by the addition of vot1ng... have been improved through an evolutionary process to the point where they have become highly reliable, stable and sensitive detectors of flames. With the recent advances in micro- processor based e'lectronics, it has become possible to combine both...

Dayton, Robert Mark

2012-06-07T23:59:59.000Z

386

Gupta-Bleuler and infrared-coherence subsidiary conditions  

Science Journals Connector (OSTI)

It is verified that the contradiction between the Gupta-Bleuler condition kain(k)?=0=kaout(k)?=0 and the natural infrared-coherence condition, lim??0?ain(k)?=-?ieipi[(2?)32(Ei-p?ik^)]-1?, is present when the quantized electromagnetic field is coupled to an external classical current. A recent contention of Professor Haller is disproven by displaying the Lehmann-Symanzik-Zimmermann limit of this simple soluble model. Three different resolutions of the dilemma posed by the above contradiction are presented.

Daniel Zwanziger

1978-10-15T23:59:59.000Z

387

The Use of Infrared Technology To Detect Heat Loss  

E-Print Network [OSTI]

\\\\Uuld save enough fuel to warrant the cost, or if the repairs could wait until a scheduled turnaround. The real-time device will also allow you to make a quick, accurate inspection of steam lines, relief valves and insulated product lines. You can.... , ' In sane cases, energy gain is of significance, and plays an important role in the energy cons~tion picture for certain products. Cooler areas are as easily detected as warm areas when desired. Infrared inspection can provide I1Ulch valuable data for many...

Faulkner, K.

1979-01-01T23:59:59.000Z

388

THE FAR-INFRARED ROTATIONAL SPECTRUM OF ETHYLENE OXIDE  

SciTech Connect (OSTI)

High-resolution FTIR spectra of ethylene oxide have been measured in the far-infrared region using synchrotron radiation. A total of 1182 lines between 15 and 73 cm{sup -1} were assigned, with J{sub max} = 64, expanding upon previous studies that had recorded spectra up to 12 cm{sup -1}, J{sub max} = 49. All available data were co-fitted to provide greatly imp- roved rotational constants for the ground vibrational state that are capable of predicting transitions up to 73 cm{sup -1}.

Medcraft, Chris; Thompson, Christopher D.; McNaughton, Don [School of Chemistry, Monash University, Wellington Road, Clayton, Victoria 3800 (Australia); Robertson, Evan G. [Department of Chemistry, La Trobe Institute of Molecular Sciences, La Trobe University, Bundoora, Victoria 3086 (Australia); Appadoo, Dominique R. T., E-mail: donald.mcnaughton@monash.edu [Australian Synchrotron, 800 Blackburn Road, Clayton, Victoria 3168 (Australia)

2012-07-01T23:59:59.000Z

389

Category:Passive Sensors | Open Energy Information  

Open Energy Info (EERE)

The following 12 pages are in this category, out of 12 total. A Aerial Photography F FLIR G Geodetic Survey H Hyperspectral Imaging L Long-Wave Infrared M Macrophotography...

390

Three-dimensional molecular imaging by infrared laser ablation electrospray ionization mass spectrometry  

DOE Patents [OSTI]

The field of the invention is atmospheric pressure mass spectrometry (MS), and more specifically a process and apparatus which combine infrared laser ablation with electrospray ionization (ESI).

Vertes, Akos; Nemes, Peter

2013-07-16T23:59:59.000Z

391

Three-dimensional molecular imaging by infrared laser ablation electrospray ionization mass spectrometry  

DOE Patents [OSTI]

The field of the invention is atmospheric pressure mass spectrometry (MS), and more specifically a process and apparatus which combine infrared laser ablation with electrospray ionization (ESI).

Vertes, Akos; Nemes, Peter

2012-10-30T23:59:59.000Z

392

E-Print Network 3.0 - als infrared beamlines Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

2002 Advances in Bioengineering RADIATIVE PROPERTIES OF POLAR BEAR HAIR Summary: synchroton infrared spectromicroscopy beamline was utilized to provide a continuous spectrum of...

393

Infrared systems and components III: Proceedings of the Meeting, Los Angeles, CA, Jan. 16, 17, 1989  

SciTech Connect (OSTI)

Topics presented include infrared signal processing and automatic target recognition, detection of closely spaced objects using radial variance, the U.S. Army FLIR/ATR evolution path, and classifiability of IR target signatures. Also presented are infrared sensors and detectors, spectral agility, Bayesian analysis of signals from closely spaced objects, and enhanced atmospheric models for IR image simulation. Consideration is given to calibration and testing of infrared sensors, electrooptical-detector laser susceptibility testing, the performance of a thermal scene generator, optics and thin films in the infrared, the optical performance of replica beryllium mirrors, a high-speed video data acquisition system, and antireflection coatings for germanium without zinc.

Caswell, R.L.

1989-01-01T23:59:59.000Z

394

Thermal And-Or Near Infrared At Fish Lake Valley Area (Deymonaz...  

Open Energy Info (EERE)

Additional References Retrieved from "http:en.openei.orgwindex.php?titleThermalAnd-OrNearInfraredAtFishLakeValleyArea(Deymonaz,EtAl.,2008)&oldid386621...

395

Graphene-coated tapered nanowire infrared probe: a comparison with metal-coated probes  

Science Journals Connector (OSTI)

We propose in this paper a graphene-coated tapered nanowire probe providing strong field enhancement in the infrared regimes. The analytical field distributions and characteristic...

Zhu, Bofeng; Ren, Guobin; Gao, Yixiao; Yang, Yang; Lian, Yudong; Jian, Shuisheng

2014-01-01T23:59:59.000Z

396

Cryogenic far-infrared laser absorptivity measurements of the Herschel Space Observatory telescope mirror coatings  

Science Journals Connector (OSTI)

Far-infrared laser calorimetry was used to measure the absorptivity, and thus the emissivity, of aluminum-coated silicon carbide mirror samples produced during the coating...

Fischer, Jacqueline; Klaassen, Tjeerd; Hovenier, Niels; Jakob, Gerd; Poglitsch, Albrecht; Sternberg, Oren

2004-01-01T23:59:59.000Z

397

E-Print Network 3.0 - ab initio infrared Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Cooling Summary: , "Ab Initio Calculations of Infrared Absorption Cross Sections of CO2 Gas." 2008 ASME International... .) for fast diamond growth; (2) Theoretically (ab...

398

The Wide-Field Near Infrared Data: Optimal Photometry in Crowded Fields  

E-Print Network [OSTI]

We present JHK infrared data from the UK Infrared Telescope for a subset of the regions of the MYStIX (Massive Young Star-Forming Complex Study in Infrared and X-ray) survey. Some of the data were obtained specifically for the MYStIX project, and some as part of the UKIRT Infrared Deep Sky Survey's Galactic Plane Survey. In most of these fields crowding is a significant issue for aperture photometry, and so we have re-extracted the photometry from the processed images using an optimal extraction technique, and we describe how we adapt the optimal technique to mitigate the effects of crowding.

King, R R; Broos, Patrick S; Getman, Konstantin V; Feigelson, Eric D

2013-01-01T23:59:59.000Z

399

Near-Infrared Electrochromic and Chiroptical Switching Materials: Design, Synthesis, and Characterization of Chiral Organogels  

E-Print Network [OSTI]

Near-Infrared Electrochromic and Chiroptical Switching Materials: Design, Synthesis regions have been realized using a low molecular weight gel as a chiral scaffold and electrochromic

Wan, Xin-hua

400

Automation of Fourier Transform Infrared Studies of Temperature-induced Phenomena  

Science Journals Connector (OSTI)

Considerable information regarding the properties of systems can be gained from a study of the vibrational spectrum as a function of temperature. Fourier transform infrared...

Cameron, David G; Charette, Gerard M

1981-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "geothermometry long-wave infrared" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

E-Print Network 3.0 - absorption infrared spectroscopy Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

electron paramagnetic resonance spectroscopy to establish the technology needed... , terahertz radiation is between microwave and infrared. the dynamics of many important ......

402

E-Print Network 3.0 - advanced infrared focal Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

(QD)-in-a-well (DWELL... . INTRODUCTION INFRARED focal plane arrays (FPAs) ... Source: Krishna, Sanjay - Center for High Technology Materials & Electrical and Computer...

403

Rapid nutrient determination of sugarcane milling by-products using near infrared spectroscopy.  

E-Print Network [OSTI]

??This thesis investigates the use of near infrared (NIR) spectroscopic methods for rapid measurement of nutrient elements in mill mud and mill ash. Adoption of (more)

Keeffe, Eloise Caitlin

2013-01-01T23:59:59.000Z

404

Analysis of Near-Infrared Phase Effects on Biometric Iris Data.  

E-Print Network [OSTI]

??The purpose of this research is to ascertain potential iris scan data variations from near infrared waves derived from fluorescent illumination. Prior studies of iris (more)

Stevenson, Brady Roos

2006-01-01T23:59:59.000Z

405

Resonant-cavity-enhanced multispectral infrared photodetectors for monolithic integration on silicon  

E-Print Network [OSTI]

Multispectral infrared (IR) detection has been widely employed for numerous applications including hyperspectral imaging, IR spectroscopy, and target identification. Traditional multispectral detection technology is based ...

Wang, Jianfei, Ph. D. Massachusetts Institute of Technology

2010-01-01T23:59:59.000Z

406

A Helicopter-Borne Video Thermal Infrared Survey Of The Rotorua...  

Open Energy Info (EERE)

Article: A Helicopter-Borne Video Thermal Infrared Survey Of The Rotorua Geothermal Field Abstract Delineation and monitoring of surface thermal activity at geothermal development...

407

Thermal And-Or Near Infrared At Marysville Mt Area (Blackwell) | Open  

Open Energy Info (EERE)

Marysville Mt Area (Blackwell) Marysville Mt Area (Blackwell) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Thermal And-Or Near Infrared At Marysville Mt Area (Blackwell) Exploration Activity Details Location Marysville Mt Area Exploration Technique Thermal And-Or Near Infrared Activity Date Usefulness not indicated DOE-funding Unknown Notes No further mention of infrared photography. References D. D. Blackwell (Unknown) Exploration In A Blind Geothermal Area Near Marysville, Montana, Usa Retrieved from "http://en.openei.org/w/index.php?title=Thermal_And-Or_Near_Infrared_At_Marysville_Mt_Area_(Blackwell)&oldid=386636" Category: Exploration Activities What links here Related changes Special pages Printable version Permanent link Browse properties

408

Remote Detection of Heated Ethanol Plumes by Airborne Passive Fourier Transform Infrared Spectrometry  

Science Journals Connector (OSTI)

Methodology is developed for the automated detection of heated plumes of ethanol vapor with airborne passive Fourier transform infrared spectrometry. Positioned in a fixed-wing...

Tarumi, Toshiyasu; Small, Gary W; Combs, Roger J; Kroutil, Robert T

2003-01-01T23:59:59.000Z

409

Small business initiative -- Surface inspection machine infrared (SIMIR)  

SciTech Connect (OSTI)

This Cooperative Research and Development Agreement was a one year effort to make the surface inspection machine based on diffuse reflectance infrared spectroscopy (Surface Inspection Machine-Infrared, SIMIR), being developed by Surface Optics Corporation, perform to its highest potential as a practical, portable surface inspection machine. A secondary purpose was to evaluate applications that would serve both the private and the public sector. The design function of the SIMIR is to inspect sandblasted metal surfaces for cleanliness (stains). The system is also capable of evaluating graphite-resin systems for cure and heat damage, and for measuring the effects of moisture exposure on lithium hydride, corrosion on uranium metal, and the constituents of and contamination on wood, paper, and fabrics. Surface Optics Corporation supplied LMES-Y12 with a prototype SOC-400 that was evaluated by LMES-Y12 and rebuilt by Surface Optics to achieve the desired performance. LMES-Y12 subsequently evaluated the instrument against numerous applications including determining part cleanliness at the Corpus Christi Army Depot, demonstrating the ability to detect plasticizers and other organic contaminants on metals to Pantex and LANL personnel, analyzed sandblasted metal contamination standards supplied by NASA-MSFC, and demonstrated to Lockheed Martin Tactical Aircraft, marietta, GA, for analyzing the paint applied to the F-22 Fighter. The instrument also demonstrated the analysis of yarn, fabric, and finish on the textiles.

Powell, G.L. [Lockheed Martin Energy Systems, Inc., Oak Ridge, TN (United States); Beecroft, M. [Surface Optics Corp., San Diego, CA (United States)

1997-05-30T23:59:59.000Z

410

HDE 233517: Lithium and Excess Infrared Emission in Giant Stars  

Science Journals Connector (OSTI)

Recent studies have identified a small class of moderately rapidly rotating, chromospherically active, single giants, some of which are lithium rich. We present evidence suggesting the peculiar K-type star HDE 233517 is one such object. Previously, HDE 233517 has been suggested to be a young star, consistent with its large far-infrared excess and our log ?(Li) ~ 3.3. However, our high-resolution spectroscopic observations show it is likely a single, post-main-sequence K2 giant with v sin i = 15 km s-1 and modest Ca II H and K emission. The giant status of HDE 233517 is determined directly from luminosity-sensitive line ratios and a lack of significant line wings, and is further supported by a large radial velocity (46.5 km s-1), small proper motion, and the presence of interstellar absorption features. Interpretation of the data in the context of a recent mass outflow model for giant stars proposed by de la Reza and coworkers indicates that HDE 233517 has the largest mass-loss rate, ~3 ? 10-7 M? yr-1, of any known luminosity class III giant. We suggest that the processes causing rapid rotation, large lithium abundance, and infrared excess are triggered at the base of the giant branch when the convection zone reaches the rapidly rotating core of low-mass stars.

Francis; Richard; Russel J. White; B. Zuckerman

1996-01-01T23:59:59.000Z

411

Exposure Time Calculator for Immersion Grating Infrared Spectrograph: IGRINS  

E-Print Network [OSTI]

We present an exposure-time calculator (ETC) for the Immersion Grating Infrared Spectrograph (IGRINS). The signal and noise values are calculated by taking into account the telluric background emission and absorption, the emission and transmission of the telescope and instrument optics, and the dark current and read noise of the infrared detector arrays. For the atmospheric transmission, we apply models based on the amount of precipitable water vapor along the line of sight to the target. The ETC produces the expected signal-to-noise ratio (S/N) for each resolution element, given the exposure-time and number of exposures. In this paper, we compare the simulated continuum S/N for the early-type star HD 124683 and the late-type star GSS 32, and the simulated emission line S/N for the H2 rovibrational transitions from the Iris Nebula NGC 7023 with the observed IGRINS spectra. The simulated S/N from the ETC is overestimate by 10 - 15 % for the sample continuum targets.

Le, Huynh Anh N; Jaffe, Daniel T; Lee, Jae-Joon; Im, Myungshin; Kaplan, Kyle; Seifahrt, Andreas

2015-01-01T23:59:59.000Z

412

Solar collector systems analysis using infrared scanning techniques  

SciTech Connect (OSTI)

Solar energy collector systems analysis using thermography is discussed. The research at the Solar Energy Research Institute (SERI) in this area has focused on infrared (IR) scanning techniques and equipment to determine temperature distributions, flow patterns, and air blockages in solar collectors. The results of this extensive study, covering many sites and types of collectors, illustrate the capabilities of IR analysis as an analysis tool and operation and maintenance procedure when applied to large arrays. Infrared analysis of most collector systems showed temperature distributions that indicated balanced flow patterns with both the thermographs and the hand-held unit. In three significant cases, blocked or broken collector arrays, which previously had gone undetected, were discovered. Using this analysis, validation studies of large computer codes could examine collector arrays for flow patterns or blockages that could cause disagreement between actual and predicted performance. Initial operation and balancing of large systems could be accomplished without complicated sensor systems not needed for normal operations. Maintenance personnel could quickly check their systems without climbing onto the roof and without complicated sensor systems.

Eden, A.

1980-08-01T23:59:59.000Z

413

NEAR-INFRARED CIRCULAR POLARIZATION IMAGES OF NGC 6334-V  

SciTech Connect (OSTI)

We present results from deep imaging linear and circular polarimetry of the massive star-forming region NGC 6334-V. These observations show high degrees of circular polarization (CP), as much as 22% in the K{sub s} band, in the infrared nebula associated with the outflow. The CP has an asymmetric positive/negative pattern and is very extended ({approx}80'' or 0.65 pc). Both the high CP and its extended size are larger than those seen in the Orion CP region. Three-dimensional Monte Carlo light-scattering models are used to show that the high CP may be produced by scattering from the infrared nebula followed by dichroic extinction by an optically thick foreground cloud containing aligned dust grains. Our results show not only the magnetic field orientation of around young stellar objects, but also the structure of circumstellar matter such as outflow regions and their parent molecular cloud along the line of sight. The detection of the large and extended CP in this source and the Orion nebula may imply the CP origin of the biological homochirality on Earth.

Kwon, Jungmi; Tamura, Motohide; Hashimoto, Jun; Kusakabe, Nobuhiko; Kandori, Ryo [National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588 (Japan); Lucas, Phil W.; Hough, James H. [Centre for Astrophysics Research, University of Hertfordshire, College Lane, Hatfield AL10 9AB (United Kingdom); Nakajima, Yasushi [Center of Information and Communication Technology, Hitotsubashi University, 2-1 Naka, Kunitachi, Tokyo 186-8601 (Japan); Nagayama, Takahiro [Department of Astrophysics, Nagoya University, Nagoya 464-8602 (Japan); Nagata, Tetsuya, E-mail: jungmi.kwon@nao.ac.jp [Department of Astronomy, Kyoto University, Kyoto 606-8502 (Japan)

2013-03-01T23:59:59.000Z

414

THE COSMIC INFRARED BACKGROUND EXPERIMENT (CIBER): A SOUNDING ROCKET PAYLOAD TO STUDY THE NEAR INFRARED EXTRAGALACTIC BACKGROUND LIGHT  

SciTech Connect (OSTI)

The Cosmic Infrared Background Experiment (CIBER) is a suite of four instruments designed to study the near infrared (IR) background light from above the Earth's atmosphere. The instrument package comprises two imaging telescopes designed to characterize spatial anisotropy in the extragalactic IR background caused by cosmological structure during the epoch of reionization, a low resolution spectrometer to measure the absolute spectrum of the extragalactic IR background, and a narrow band spectrometer optimized to measure the absolute brightness of the zodiacal light foreground. In this paper we describe the design and characterization of the CIBER payload. The detailed mechanical, cryogenic, and electrical design of the system are presented, including all system components common to the four instruments. We present the methods and equipment used to characterize the instruments before and after flight, and give a detailed description of CIBER's flight profile and configurations. CIBER is designed to be recoverable and has flown four times, with modifications to the payload having been informed by analysis of the first flight data. All four instruments performed to specifications during the subsequent flights, and the scientific data from these flights are currently being analyzed.

Zemcov, M.; Bock, J.; Hristov, V.; Levenson, L. R.; Mason, P. [Department of Physics, Mathematics, and Astronomy, California Institute of Technology, Pasadena, CA 91125 (United States); Arai, T.; Matsumoto, T.; Matsuura, S.; Tsumura, K.; Wada, T. [Department of Space Astronomy and Astrophysics, Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara, Kanagawa 252-5210 (Japan); Battle, J. [Jet Propulsion Laboratory (JPL), National Aeronautics and Space Administration (NASA), Pasadena, CA 91109 (United States); Cooray, A. [Center for Cosmology, University of California, Irvine, Irvine, CA 92697 (United States); Keating, B.; Renbarger, T. [Department of Physics, University of California, San Diego, San Diego, CA 92093 (United States); Kim, M. G. [Department of Physics and Astronomy, Seoul National University, Seoul 151-742 (Korea, Republic of); Lee, D. H.; Nam, U. W. [Korea Astronomy and Space Science Institute (KASI), Daejeon 305-348 (Korea, Republic of); Sullivan, I. [Department of Physics, The University of Washington, Seattle, WA 98195 (United States); Suzuki, K., E-mail: zemcov@caltech.edu [Instrument Development Group of Technical Center, Nagoya University, Nagoya, Aichi 464-8602 (Japan)

2013-08-15T23:59:59.000Z

415

LOCUSS: THE MID-INFRARED BUTCHER-OEMLER EFFECT  

SciTech Connect (OSTI)

We study the mid-infrared (MIR) properties of galaxies in 30 massive galaxy clusters at 0.02 <= z <= 0.40, using panoramic Spitzer/MIPS 24 mum and near-infrared data, including 27 new observations from the LoCuSS and ACCESS surveys. This is the largest sample of clusters to date with such high-quality and uniform MIR data covering not only the cluster cores, but extending into the infall regions. We use these data to revisit the so-called Butcher-Oemler (BO) effect, measuring the fraction of massive infrared luminous galaxies (K < K* + 1.5, L {sub IR} > 5 x 10{sup 10} L {sub sun}) within r {sub 200}, finding a steady increase in the fraction with redshift from approx3% at z = 0.02 to approx10% by z = 0.30, and an rms cluster-to-cluster scatter about this trend of 0.03. The best-fit redshift evolution model of the form f {sub SF} propor to (1 + z) {sup n} has n = 5.7{sup +2.1} {sub -1.8}, which is stronger redshift evolution than that of L*{sub IR} in both clusters and the field. We find that, statistically, this excess is associated with galaxies found at large cluster-centric radii, specifically r {sub 500} < r < r {sub 200}, implying that the MIR BO effect can be explained by a combination of both the global decline in star formation in the universe since z approx 1 and enhanced star formation in the infall regions of clusters at intermediate redshifts. This picture is supported by a simple infall model based on the Millennium Simulation semianalytic galaxy catalogs, whereby star formation in infalling galaxies is instantaneously quenched upon their first passage through the cluster, in that the observed radial trends of f {sub SF} trace those inferred from the simulations. The observed f {sub SF} values, however, lie systematically above the predictions, suggesting an overall excess of star formation, either due to triggering by environmental processes, or a gradual quenching. We also find that f {sub SF} does not depend on simple indicators of the dynamical state of clusters, including the offset between the brightest cluster galaxy and the peak of the X-ray emission. This is consistent with the picture described above in that most new star formation in clusters occurs in the infall regions, and is thus not sensitive to the details of cluster-cluster mergers in the core regions.

Haines, C. P.; Smith, G. P.; Sanderson, A. J. R. [School of Physics and Astronomy, University of Birmingham, Edgbaston, Birmingham, B15 2TT (United Kingdom); Egami, E. [Steward Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721 (United States); Ellis, R. S. [California Institute of Technology, 105-24 Astronomy, Pasadena, CA 91125 (United States); Moran, S. M. [Department of Physics and Astronomy, The Johns Hopkins University, 3400 N. Charles Street, Baltimore, MD 21218 (United States); Merluzzi, P.; Busarello, G. [INAF - Osservatorio Astronomico di Capodimonte, via Moiariello 16, I-80131 Napoli (Italy); Smith, R. J., E-mail: cph@star.sr.bham.ac.u [Department of Physics, Durham University, Durham, DH1 3LE (United Kingdom)

2009-10-10T23:59:59.000Z

416

THE GALACTIC CENTER IN THE FAR-INFRARED  

SciTech Connect (OSTI)

We analyze the far-infrared dust emission from the Galactic center region, including the circumnuclear disk (CND) and other structures, using Herschel PACS and SPIRE photometric observations. These Herschel data are complemented by unpublished observations by the Infrared Space Observatory Long Wavelength Spectrometer (ISO-LWS), which used parallel mode scans to obtain photometric images of the region with a larger beam than Herschel but with a complementary wavelength coverage and more frequent sampling with 10 detectors observing at 10 different wavelengths in the range from 46 {mu}m to 180 {mu}m, where the emission peaks. We also include data from the Midcourse Space Experiment at 21.3 {mu}m for completeness. We model the combined ISO-LWS continuum plus Herschel PACS and SPIRE photometric data toward the central 2 pc in Sagittarius A* (Sgr A*), a region that includes the CND. We find that the far-infrared spectral energy distribution is best represented by a continuum that is the sum of three gray body curves from dust at temperatures of 90, 44.5, and 23 K. We obtain temperature and molecular hydrogen column density maps of the region. We estimate the mass of the inner part of the CND to be {approx}5.0 x 10{sup 4} M{sub sun}, with luminosities: L{sub cavity} {approx} 2.2 x 10{sup 6} L{sub sun} and L{sub CND} {approx} 1.5 x 10{sup 6} L{sub sun} in the central 2 pc radius around Sgr A*. We find from the Herschel and ISO data that the cold component of the dust dominates the total dust mass, with a contribution of {approx}3.2 x 10{sup 4} M{sub sun}; this important cold material had escaped the notice of earlier studies that relied on shorter wavelength observations. The hotter component disagrees with some earlier estimates, but is consistent with measured gas temperatures and with models that imply shock heating or turbulent effects are at work. We find that the dust grain sizes apparently change widely across the region, perhaps in response to the temperature variations, and we map that distribution.

Etxaluze, M.; Smith, Howard A.; Tolls, V.; Stark, A. A. [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States); Gonzalez-Alfonso, E., E-mail: metxaluz@cfa.harvard.edu [CfA and Universidad de Alcala, Alcala de Henares 28801 (Spain)

2011-10-15T23:59:59.000Z

417

Automatic Target Detection and Tracking in ForwardLooking Infrared Image Sequences Using  

E-Print Network [OSTI]

propose a method for automatic target detection and tracking in forward-looking infrared (FLIR) image, obtained with real FLIR image sequences, illustrating a wide variety of target and clutter variability and tracking (ATDT) in forward looking infrared (FLIR) image sequences is a very important military application

Braga-Neto, Ulisses

418

Results from Infrared Spectral Observation of 1991 Total Solar Eclipse Hui Li and Jianqi You  

E-Print Network [OSTI]

Results from Infrared Spectral Observation of 1991 Total Solar Eclipse Hui Li and Jianqi You Purple and analytical results of infrared spectra (10712°A­10972°A) observed in the total solar eclipse of 1991 July 11 in Mexico. The surface brightness curve, derived from the continua of extreme limb photosphere of flash

Li, Hui

419

GaSb/GaAs type II quantum dot solar cells for enhanced infrared spectral response  

E-Print Network [OSTI]

GaSb/GaAs type II quantum dot solar cells for enhanced infrared spectral response R. B Technology Materials, University of New Mexico, 1313 Goddard SE, Albuquerque, New Mexico 87106 Received 27 infrared spectral response of GaAs-based solar cells that incorporate type II GaSb quantum dots QDs formed

Jalali. Bahram

420

Results from Infrared Spectral Observation of 1991 Total Solar Eclipse Hui Li and Jianqi You  

E-Print Network [OSTI]

Results from Infrared Spectral Observation of 1991 Total Solar Eclipse Hui Li and Jianqi You Purple and analytical results of infrared spectra (10712 š A--10972 š A) observed in the total solar eclipse of 1991 July 11 in Mexico. The surface brightness curve, derived from the continua of extreme limb photosphere

Li, Hui

Note: This page contains sample records for the topic "geothermometry long-wave infrared" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

Near-infrared flares from accreting gas around the supermassive black hole at the Galactic Centre  

Science Journals Connector (OSTI)

... . The infrared flares all originated from within a few milliarcseconds, or a few hundred Schwarzschild radii, of the black-hole position (Table 1). That position was determined from ... the infrared flares originate in the innermost accretion zone, on a scale less than ten Schwarzschild radii (the light travel time across the ...

R. Genzel; R. Schdel; T. Ott; A. Eckart; T. Alexander; F. Lacombe; D. Rouan; B. Aschenbach

2003-10-30T23:59:59.000Z

422

Compact infrared cryogenic wafer-level camera: design and experimental validation  

E-Print Network [OSTI]

Compact infrared cryogenic wafer-level camera: design and experimental validation Florence de la; posted 12 January 2012 (Doc. ID 158765); published 5 March 2012 We present a compact infrared cryogenic, the concept is compatible with both cryogenic constraints and wafer- level fabrication. The design strategy

Boyer, Edmond

423

A near-infrared reflectance sensor for soil surface moisture measurement  

Science Journals Connector (OSTI)

Soil moisture is an important soil property that has important functions in various studies and applications, such as agricultural practices, hydrological processes and ecological issues. A near-infrared (NIR) reflectance sensor designed for moisture ... Keywords: Light-emitting diode, Near-infrared reflectance, Relative absorption depth, Soil moisture

Zhe Yin; Tingwu Lei; Qinghong Yan; Zhanpeng Chen; Yuequn Dong

2013-11-01T23:59:59.000Z

424

Midwave infrared quantum dot avalanche photodiode David A. Ramirez,a  

E-Print Network [OSTI]

Midwave infrared quantum dot avalanche photodiode David A. Ramirez,a Jiayi Shao, Majeed M. Hayat demonstration of a GaAs based avalanche photodiode APD operating in the midwave infrared region 3­5 m . In the device, called the quantum dot avalanche photodiode, an intersubband quantum dots-in-a-well detector

Hayat, Majeed M.

425

Looking Deep from the South Pole: Star Formation in the Thermal Infrared  

E-Print Network [OSTI]

Looking Deep from the South Pole: Star Formation in the Thermal Infrared Michael G.Burton, John W extra-galactic star formation through a deep survey of the Hubble Deep Field{South in this band. We-eminent conditions on the Earth for wide- eld imaging at thermal infrared wavelengths. We describe a project to equip

Ashley, Michael C. B.

426

DUST TEMPERATURES IN THE INFRARED SPACE OBSERVATORY ATLAS OF BRIGHT SPIRAL GALAXIES1  

E-Print Network [OSTI]

DUST TEMPERATURES IN THE INFRARED SPACE OBSERVATORY ATLAS OF BRIGHT SPIRAL GALAXIES1 George J Space Observatory Atlas of Bright Spiral Galaxies. For the 71 galaxies where we had complete 60­180 lm Facility (IRTF) with IRAS far-infrared data to conclude that spiral galaxies have cold dust components

Joseph, Robert D.

427

Photoconductivity of single-wall carbon nanotubes under continuous-wave near-infrared illumination  

E-Print Network [OSTI]

Photoconductivity of single-wall carbon nanotubes under continuous-wave near-infrared illumination studied under continuous-wave near-infrared illumination. The photocurrent exhibits a linear response, we report the observation of cw photo- conductivity of single-wall carbon nanotubes in the near

Euler, William B.

428

Femtosecond Near-Infrared Laser Desorption of Multilayer Benzene on Pt{111}: A Molecular Newton's Cradle?  

E-Print Network [OSTI]

Femtosecond Near-Infrared Laser Desorption of Multilayer Benzene on Pt{111}: A Molecular Newton Recently, the intense near-infrared laser desorption of intact benzene molecules has been reported.1 Three, 1999; In Final Form: February 11, 2000 Velocity distributions resulting from the intense, near-IR laser

Levis, Robert J.

429

The Mauna Kea Observatories Near-Infrared Filter Set. III. Isophotal Wavelengths and Absolute Calibration  

E-Print Network [OSTI]

The isophotal wavelengths, flux densities, and AB magnitudes for Vega (alpha Lyr) are presented for the Mauna Kea Observatories near-infrared filter set. We show that the near-infrared absolute calibration for Vega determined by Cohen et al. and Megessier are consistent within the uncertainties, so that either absolute calibration may be used.

A. T. Tokunaga; W. D. Vacca

2005-02-05T23:59:59.000Z

430

Temperature-Tuning of Near-Infrared Monodisperse Quantum Dot Solids at  

E-Print Network [OSTI]

Temperature-Tuning of Near-Infrared Monodisperse Quantum Dot Solids at 1.5 µm for Controllable Fo is important in a wide-variety of applications, especially in the near-infrared region where applications transfer in large, monodisperse lead sulfide quantum dots with ground-state transitions near 1.5 µm (0.8 e

Hone, James

431

Electrical Conductivity, Near-Infrared Absorption, and Thermal Lens Spectroscopic Studies of Percolation of Microemulsions  

E-Print Network [OSTI]

Electrical Conductivity, Near-Infrared Absorption, and Thermal Lens Spectroscopic Studies studied below and above the percolation thresholds by electrical conductivity, near-infrared absorption. In this work the structure of microemulsions was investigated by using the near-IR absorption and thermal lens

Reid, Scott A.

432

Near-infrared thermal lens spectrometer based on an erbium-doped fiber amplifier and  

E-Print Network [OSTI]

Near-infrared thermal lens spectrometer based on an erbium-doped fiber amplifier and an acousto, guanosine, and thymidine is described. © 1997 Optical Society of America Key words: Near infrared, thermal measurements of absorption in the near-IR region has been developed. In this instrument the near-IR excitation

Reid, Scott A.

433

Thermal And-Or Near Infrared At Mt Ranier Area (Frank, 1995) | Open Energy  

Open Energy Info (EERE)

Thermal And-Or Near Infrared At Mt Ranier Area Thermal And-Or Near Infrared At Mt Ranier Area (Frank, 1995) Exploration Activity Details Location Mt Ranier Area Exploration Technique Thermal And-Or Near Infrared Activity Date Usefulness useful DOE-funding Unknown Notes Infrared images acquired through joint US. Department of Energy and U.S. Geological Survey efforts (Kieffer et al., 1982) show a representative pattern of heat emission from the summit area (Fig. 5). References David Frank (1995) Surficial Extent And Conceptual Model Of Hydrothermal System At Mount Rainier, Washington Retrieved from "http://en.openei.org/w/index.php?title=Thermal_And-Or_Near_Infrared_At_Mt_Ranier_Area_(Frank,_1995)&oldid=386481" Categories: Exploration Activities DOE Funded Activities What links here Related changes

434

Thermal And-Or Near Infrared At Yellowstone Region (Hellman & Ramsey, 2004)  

Open Energy Info (EERE)

Thermal And-Or Near Infrared At Yellowstone Region (Hellman & Ramsey, 2004) Thermal And-Or Near Infrared At Yellowstone Region (Hellman & Ramsey, 2004) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Thermal And-Or Near Infrared At Yellowstone Region (Hellman & Ramsey, 2004) Exploration Activity Details Location Yellowstone Caldera Geothermal Region Exploration Technique Thermal And-Or Near Infrared Activity Date Usefulness useful DOE-funding Unknown References Melanie J. Hellman, Michael S. Ramsey (2004) Analysis Of Hot Springs And Associated Deposits In Yellowstone National Park Using Aster And Aviris Remote Sensing Retrieved from "http://en.openei.org/w/index.php?title=Thermal_And-Or_Near_Infrared_At_Yellowstone_Region_(Hellman_%26_Ramsey,_2004)&oldid=401329" Category: Exploration Activities

435

Deep Near-Infrared Imaging and Photometry of the Antennae Galaxies with WIRC  

E-Print Network [OSTI]

We present deep near-infrared images of the Antennae galaxies, taken with the Palomar Wide-Field Infrared Camera WIRC. The images cover a 4.33' x 4.33' (24.7kpc x 24.7kpc) area around the galaxy interaction zone. We derive J and K_s band photometric fluxes for 172 infrared star clusters, and discuss details of the two galactic nuclei and the overlap region. We also discuss the properties of a subset of 27 sources which have been detected with WIRC, HST and the VLA. The sources in common are young clusters of less than 10 Myr, which show no correlation between their infrared colors and 6 cm radio properties. These clusters cover a wide range in infrared color due to extinction and evolution. The average extinction is about A_V~2 mag while the reddest clusters may be reddened by up to 10 magnitudes.

B. R. Brandl; D. M. Clark; S. S. Eikenberry; J. C. Wilson; C. P. Henderson; D. J. Barry; J. R. Houck; J. C. Carson; T. L. Hayward

2005-09-06T23:59:59.000Z

436

Thermal And-Or Near Infrared At Raft River Geothermal Area (1974-1976) |  

Open Energy Info (EERE)

Thermal And-Or Near Infrared At Raft River Geothermal Area (1974-1976) Thermal And-Or Near Infrared At Raft River Geothermal Area (1974-1976) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Thermal And-Or Near Infrared At Raft River Geothermal Area (1974-1976) Exploration Activity Details Location Raft River Geothermal Area Exploration Technique Thermal And-Or Near Infrared Activity Date 1974 - 1976 Usefulness useful DOE-funding Unknown Exploration Basis Reconnaissance geothermal exploration Notes A TIR survey of the Raft River geothermal area prospect in Idaho where thermal waters move laterally in an alluvial plain and have no visible surface manifestations was undertaken as part of geothermal exploration. References K. Watson (1974) Geothermal Reconnaissance From Quantitative Analysis Of Thermal Infrared Imagery

437

?6 and ?8 infrared bands and force field of disilane  

Science Journals Connector (OSTI)

The infrared absorption spectrum of the ?6 and ?8 bands of disilane (Si2H6) was recorded at medium resolution (0.1-0.05 cm?1). A rotation analysis of the P(J) and R(J) structure of ?6 was carried out, yielding the band origin and information on the B constant of the ground and v6 = 1 states of the molecule, and on the DJ centrifugal distortion constant. About 400 transitions of the ?8 band were assigned and analysed, giving information on the band origin and the rotational constants of the v8 = 1 state. Using the new and previous information on the vibrational spectrum of Si2H6 and Si2D6, a force constant refinement was performed. Several force field models were tried and a discussion of the results is presented.

Aida Ben Altabef; Rafael Escribano

1992-01-01T23:59:59.000Z

438

Characterization of Io's volcanic activity by infrared polarimetry  

SciTech Connect (OSTI)

The thermal emission from Io's volcanic hot spots is linearly polarized.Infrared measurements at 4.76 micrometers show disk-integrated polarization as large as 1.6 percent. The degree and position angle of linear polarization vary with Io's rotation in a manner characteristic of emission from a small number of hot spots. A model incorporating three hot spots best fits the data. The largest of these hot spots lies to the northeast of Loki Patera, as mapped from Voyager, and the other spot on the trailing hemisphere is near Ra Patera. The hot spot on the leading hemisphere corresponds to no named feature on the Voyager maps. The value determined for the index of refraction of the emitting surface is a lower bound; it is similar to that of terrestrial basalts and is somewhat less than that of sulfur. 25 references.

Goguen, J.D.; Sinton, W.M.

1985-10-01T23:59:59.000Z

439

Mid-Infrared Fiber-Coupled QCl-QEPAS Sensor  

SciTech Connect (OSTI)

An innovative spectroscopic system based on an external cavity quantum cascade laser (EC-QCL) coupled with a mid-infrared (mid-IR) fiber and quartz enhanced photoacoustic spectroscopy (QEPAS) is described. SF6 has been selected as a target gas in demonstration of the system for trace gas sensing. Single mode laser delivery through the prongs of the quartz tuning fork has been obtained employing a hollow waveguide fiber with inner silversilver iodine (AgAgI) coatings and internal core diameter of 300 lm. A detailed design and realization of the QCL fiber coupling and output collimator system allowed almost practically all (99.4 %) of the laser beam to be transmitted through the spectrophone module. The achieved sensitivity of the system is 50 parts per trillion in 1 s, corresponding to a record for QEPAS normalized noise-equivalent absorption 2.7 9 10-10 W cm-1 Hz-1/2.

Spagnolo, V.; Patimisco, P.; Borri, Simone; Scamarcio, G.; Bernacki, Bruce E.; Kriesel, J.M.

2013-08-01T23:59:59.000Z

440

Gas phase infrared spectra of ammoniated ammonium ions  

SciTech Connect (OSTI)

Infrared spectra of 2--5 ..mu.. are reported for NH/sub 4/(NH/sub 3/)/sub n//sup +/, n=0 to 4. The ..nu../sub 3/ mode is found at 3335 cm/sup -1/ in NH/sub 4//sup +/, 2867 cm/sup -1/ in NH/sub 4/(NH/sub 3/)/sub 4//sup +/. The ..nu../sub 3/' modes in NH/sub 4/(NH/sub 3/)/sub 3//sup +/ are found at 2682 and 3365 cm/sup -1/ and the ..nu../sub 1/' mode is found at 2790 cm/sup -1/. The overtone band 2..nu../sub 4/ is observed at 3087 cm/sup -1/ in the n=4 species and 3000 cm/sup -1/ in the n=3 species. Isotope effects are reported. Less detailed spectra are reported for n=1 and n=2 species.

Schwarz, H.A.

1980-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "geothermometry long-wave infrared" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Improved Spatial Resolution for Reflection Mode Infrared Microscopy  

SciTech Connect (OSTI)

Standard commercial infrared microscopes operating in reflection mode use a mirror to direct the reflected light from the sample to the detector. This mirror blocks about half of the incident light, however, and thus degrades the spatial resolution by reducing the umerical aperture of the objective. Here, we replace the mirror with a 50% beamsplitter to allow full illumination of the objective and retain a way to direct the reflected light to the detector. The improved spatial resolution is demonstrated using two different microscopes apable of diffraction-limited resolution: the first microscope is coupled to a synchrotron source and utilizes a single point detector, whereas the second microscope has a standard blackbody source and uses a focal planetarray (FPA) detector.

Bechtel, Hans A.; Martin, Michael C.; May, T.E.; Lerch, Philippe

2009-10-09T23:59:59.000Z

442

Near-infrared spectrometric determination of dipyrone in closed ampoules  

Science Journals Connector (OSTI)

The present paper proposes an analytical method for fast near-infrared (NIR) determination of dipyrone in injectable formulations with a nominal content of 50.0%mv?1 without violation of the ampoule. For this purpose, two multivariate calibration methods are evaluated, namely Partial-Least-Squares (PLS) and Multiple Linear Regression (MLR) with variable selection by the Successive Projections Algorithm (SPA). The resulting models comprised four latent variables (PLS) and five spectral variables (MLR-SPA). Appropriate predictions were obtained in both cases, with RMSEP values of 0.39 (PLS) and 0.35%mv?1 (MLR-SPA) and correlation coefficients of 0.9970 (PLS) and 0.9975 (MLR-SPA) for a calibration range of 4060%mv?1. No systematic error was observed and no significant differences were found between the predicted and reference values, according to a paired t-test at 95% confidence level.

Ftima Aparecida C. Sanches; Rosimeri B. Abreu; Mrcio Jos Coelho Pontes; Flaviano C. Leite; Daniel Jackson E. Costa; Roberto Kawakami H. Galvo; Mario Cesar U. Araujo

2012-01-01T23:59:59.000Z

443

Longwave thermal infrared spectral variability in individual rocks  

SciTech Connect (OSTI)

A hyperspectral imaging spectrometer measuring in the longwave thermal infrared (7.6-11.6 {micro}m) with a spatial resolution less than 4 mm was used in the field to observe the variability of emissivity spectra within individual rocks. The rocks were obtained commercially, were on the order of 20 cm in size and were selected to have distinct spectral features: they include alabaster (gypsum), soapstone (steatite with talc), obsidian (volcanic glass), norite (plagioclase and orthopyroxene), and 'jasper' (silica with iron oxides). The advantages of using an imaging spectrometer to spectrally characterize these rocks are apparent. Large spectral variations were observed within individual rocks that may be attributed to roughness, surface geometry, and compositional variation. Non-imaging spectrometers would normally miss these variations as would small samples used in laboratory measurements, spatially averaged spectra can miss the optimum spectra for identification materials and spatially localized components of the rock can be obscured.

Balick, Lee K [Los Alamos National Laboratory; Gillespie, Alan [UN. WASHINGTON; French, Andrew [USDA-ARS; Danilina, Iryna [UN. WASHINGTON

2008-01-01T23:59:59.000Z

444

Infrared sensor for CVD deposition of dielectric films  

SciTech Connect (OSTI)

Infrared emission (IRE) spectra were obtained from two borophosphosilicate glass (BPSG) thin-film sample sets. The first set consisted of 21 films deposited on undoped silicon wafers, and the second set consisted of 9 films deposited on patterned and doped (product) wafers. The IRE data were empirically modeled using partial least-squares calibration to simultaneously quantify four BPSG thin-film properties. The standard errors of the determinations when modeling the 21 monitor wafers were

Niemczyk, T.M.; Franke, J.E.; Zhang, S. [New Mexico Univ., Albuquerque, NM (United States). Dept. of Chemistry; Haaland, D.M. [Sandia National Labs., Albuquerque, NM (United States)

1994-06-01T23:59:59.000Z

445

Active Control of Nitride Plasmonic Dispersion in the Far Infrared.  

SciTech Connect (OSTI)

We investigate plasmonic structures in nitride-based materials for far-infrared (IR) applications. The two dimensional electron gas (2DEG) in the GaN/AlGaN material system, much like metal- dielectric structures, is a patternable plasmonic medium. However, it also permits for direct tunability via an applied voltage. While there have been proof-of-principle demonstrations of plasma excitations in nitride 2DEGs, exploration of the potential of this material system has thus far been limited. We recently demonstrated coherent phenomena such as the formation of plasmonic crystals, strong coupling of tunable crystal defects to a plasmonic crystal, and electromagnetically induced transparency in GaAs/AlGaAs 2DEGs at sub-THz frequencies. In this project, we explore whether these effects can be realized in nitride 2DEG materials above 1 THz and at temperatures exceeding 77 K.

Shaner, Eric A.; Dyer, Gregory Conrad; Seng, William Francis; Bethke, Donald Thomas; Grine, Albert Dario,; Baca, Albert G.; Allerman, Andrew A.

2014-11-01T23:59:59.000Z

446

High speed single photon detection in the near-infrared  

E-Print Network [OSTI]

InGaAs avalanche photodiodes (APDs) are convenient for single photon detection in the near-infrared (NIR) including the fibre communication bands (1.31/1.55 $\\mu$m). However, to suppress afterpulse noise due to trapped avalanche charge, they must be gated with MHz repetition frequencies, thereby severely limiting the count rate in NIR applications. Here we show gating frequencies for InGaAs-APDs well beyond 1 GHz. Using a self-differencing technique to sense much weaker avalanches, we reduce drastically afterpulse noise. At 1.25 GHz, we obtain a detection efficiency of 10.8% with an afterpulse probability of 6.16%. In addition, the detector features low jitter (55 ps) and a count rate of 100 MHz.

Z. L. Yuan; B. E. Kardynal; A. W. Sharpe; A. J. Shields

2007-07-29T23:59:59.000Z

447

Near Infrared observations of Soft X-ray selected AGN  

E-Print Network [OSTI]

We report the results of near infrared observations of 19 soft X-ray selected AGN. The goal of the observations was to search for strong, narrow Paschen-alpha or Brackett-gamma emission lines, as a sign of nuclear starbursts. We found Pa-alpha emission in the spectra of 11 sources and Br-gamma in at least five. Strong NIR emission has been found in two sources, CBS 126 and Mkn 766, both objects with strong [OIII]5007 emission, weak FeII emission and wavelength dependent degree of polarization in the optical. Classical Narrow Line Seyfert 1 galaxies do not show exceptionally strong NIR emission lines. We present the results of our study and discuss how our findings fit into an evolutionary scheme of AGN.

D. Grupe; H. -C Thomas

2002-02-21T23:59:59.000Z

448

Analysis and System Design Framework for Infrared Spatial Heterodyne Spectrometers  

SciTech Connect (OSTI)

The authors present a preliminary analysis and design framework developed for the evaluation and optimization of infrared, Imaging Spatial Heterodyne Spectrometer (SHS) electro-optic systems. Commensurate with conventional interferometric spectrometers, SHS modeling requires an integrated analysis environment for rigorous evaluation of system error propagation due to detection process, detection noise, system motion, retrieval algorithm and calibration algorithm. The analysis tools provide for optimization of critical system parameters and components including : (1) optical aperture, f-number, and spectral transmission, (2) SHS interferometer grating and Littrow parameters, and (3) image plane requirements as well as cold shield, optical filtering, and focal-plane dimensions, pixel dimensions and quantum efficiency, (4) SHS spatial and temporal sampling parameters, and (5) retrieval and calibration algorithm issues.

Cooke, B.J.; Smith, B.W.; Laubscher, B.E.; Villeneuve, P.V.; Briles, S.D.

1999-04-05T23:59:59.000Z

449

Surface Inspection Machine Infrared (SIMIR). Final CRADA report  

SciTech Connect (OSTI)

This Cooperative Research and Development Agreement was a one year effort to make the surface inspection machine based on diffuse reflectance infrared spectroscopy (Surface Inspection Machine-Infrared, SIMIR), being developed by Surface Optics Corporation, perform to its highest potential as a practical, portable surface inspection machine. The design function of the SIMIR is to inspect metal surfaces for cleanliness (stains). The system is also capable of evaluating graphite-resin systems for cure and heat damage, and for measuring the effects of moisture exposure on lithium hydride, corrosion on uranium metal, and the constituents of and contamination on wood, paper, and fabrics. Over the period of the CRADA, extensive experience with the use of the SIMIR for surface cleanliness measurements have been achieved through collaborations with NASA and the Army. The SIMIR was made available to the AMTEX CRADA for Finish on Yarn where it made a very significant contribution. The SIMIR was the foundation of a Forest Products CRADA that was developed over the time interval of this CRADA. Surface Optics Corporation and the SIMIR have been introduced to the chemical spectroscopy on-line analysis market and have made staffing additions and arrangements for international marketing of the SIMIR as an on-line surface inspection device. LMES has been introduced to a wide range of aerospace applications, the research and fabrication skills of Surface Optics Corporation, has gained extensive experience in the areas of surface cleanliness from collaborations with NASA and the Army, and an extensive introduction to the textile and forest products industries. The SIMIR, marketed as the SOC-400, has filled an important new technology need in the DOE-DP Enhanced Surveillance Program with instruments delivered to or on order by LMES, LANL, LLNL, and Pantex, where extensive collaborations are underway to implement and improve this technology.

Powell, G.L. [Lockheed Martin Energy Systems, Inc., Oak Ridge, TN (United States); Neu, J.T.; Beecroft, M. [Surface Optics Corp., San Diego, CA (United States)

1997-02-28T23:59:59.000Z

450

Reevaluation of Type I Diamonds for Infrared and Raman Spectroscopy in High-Pressure Diamond Anvil Cells  

Science Journals Connector (OSTI)

Types Ia, IIa, and IIb diamonds have been compared for their use as anvils in infrared and Raman high-pressure spectroscopy. In the mid-infrared region above 2700 cm?1,...

Wong, P T T; Klug, D D

1983-01-01T23:59:59.000Z

451

Non-smooth optimization in the 1D-Var data assimilation of all-sky infrared satellite observations  

E-Print Network [OSTI]

Non-smooth optimization in the 1D-Var data assimilation of all-sky infrared satellite observations of clear-sky data assimilation using infrared satellites is well understood (e.g. [8], [5]), and while of non-smooth optimization algorithms to improve the variational data assimilation of all-sky infrared

Navon, Michael

452

Near infrared 3~~ overtone band of Hl Brian F. Ventrudo and Daniel T. Cassidy  

E-Print Network [OSTI]

Near infrared 3~~ overtone band of Hl Brian F. Ventrudo and Daniel T. Cassidy Department transitions. Short-external-cavity InCaAsP diodes were used as tunable near infrared radiation sources and understand the spectrum of vibra- tional excited states. This paper updates the list of observed near-infrared

Oka, Takeshi

453

Near-infrared double negative metamaterials Shuang Zhang, Wenjun Fan, K. J. Malloy and S. R. J. Brueck  

E-Print Network [OSTI]

Near-infrared double negative metamaterials Shuang Zhang, Wenjun Fan, K. J. Malloy and S. R. J and negative over an overlapping near-infrared wavelength range resulting in a low loss negative. Brueck, "Demonstration of Near-Infrared Negative-Index Materials," Postdeadline Paper at OSA Topical

New Mexico, University of

454

C.D. Tran, J. Near Infrared Spectrosc. 8, 89102 (2000) 89 NIR Publications 2000, ISSN 0967-0335  

E-Print Network [OSTI]

C.D. Tran, J. Near Infrared Spectrosc. 8, 89­102 (2000) 89 © NIR Publications 2000, ISSN 0967-0335 Visualising chemical composition and reaction kinetics by the near infrared multispectral imaging technique and near infrared has been developed. In this instrument, an acousto-optic tunable filter (AOTF) is used

Reid, Scott A.

455

Determination by Near-Infrared Spectroscopy of Perseitol Used as a Marker for the Botanical Origin of Avocado  

E-Print Network [OSTI]

Determination by Near-Infrared Spectroscopy of Perseitol Used as a Marker for the Botanical Origin University of Jerusalem, Rehovot 76100, Israel This paper reports the application of near-infrared (NIR properties (oily taste) characteristic of avocado honey (Ohad Afik, unpublished data). Near-infrared

Delaplane, Keith S.

456

Examination of ChlorinBacteriochlorin Energy-transfer Dyads as Prototypes for Near-infrared Molecular Imaging Probes  

E-Print Network [OSTI]

Examination of Chlorin­Bacteriochlorin Energy-transfer Dyads as Prototypes for Near-infrared features across the red and near-infrared (NIR) regions, tunable excited-state lifetimes (10 ns absorption and efficient emission in the red or near-infrared (NIR) spectral region, (2) sharp absorption

Larson-Prior, Linda

457

Combining visible and near-infrared images for realistic skin Clement Fredembach, Nathalie Barbuscia and Sabine Susstrunk  

E-Print Network [OSTI]

Combining visible and near-infrared images for realistic skin smoothing Cl´ement Fredembach components of skin colour, have little absorption in the near-infrared part of the spectrum propose that near-infrared images provide information that can be used to automatically smooth skin tones

Salvaggio, Carl

458

Origins of Spatial Working Memory Deficits in Schizophrenia: An Event-Related fMRI and Near-Infrared  

E-Print Network [OSTI]

Origins of Spatial Working Memory Deficits in Schizophrenia: An Event-Related fMRI and Near-Infrared performance with the near-infrared spectroscopy (NIRS) using the same spatial WM task. Distinct types S (2008) Origins of Spatial Working Memory Deficits in Schizophrenia: An Event-Related fMRI and Near-Infrared

Park, Sohee

459

JOURNAL OF LIGHTWAVE TECHNOLOGY, VOL. 31, NO. 19, OCTOBER 1, 2013 3181 Noise Figure in Near-Infrared Amorphous and  

E-Print Network [OSTI]

JOURNAL OF LIGHTWAVE TECHNOLOGY, VOL. 31, NO. 19, OCTOBER 1, 2013 3181 Noise Figure in Near-Infrared, Senior Member, IEEE Abstract--The noise figures (NF) of near-infrared (near-IR) amorphous silicon (a Amorphous and Mid-Infrared Crystalline Silicon Optical Parametric Amplifiers Jichi Ma and Sasan Fathpour

Fathpour, Sasan

460

Non-Invasive Neuroimaging Using Near-Infrared Light Gary Strangman, David A. Boas, and Jeffrey P. Sutton  

E-Print Network [OSTI]

REVIEW Non-Invasive Neuroimaging Using Near-Infrared Light Gary Strangman, David A. Boas, and Jeffrey P. Sutton This article reviews diffuse optical brain imaging, a technique that employs near-infrared function capitalizes on the absorption and scattering properties of near-infrared light to provide

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461

Near to the Brain: Functional Near-Infrared Spectroscopy as a Lightweight Brain Imaging Technique for Visualization  

E-Print Network [OSTI]

Near to the Brain: Functional Near-Infrared Spectroscopy as a Lightweight Brain Imaging Technique the use of cumbersome or expensive brain imaging equipment. In recent years, functional near-infrared near-infrared spectroscopy (fNIRS) is an emerging technology for brain imaging being developed

Tomkins, Andrew

462

A Near-Infrared Cell Tracker Reagent for Multiscopic In Vivo Imaging and Quantification of Leukocyte Immune  

E-Print Network [OSTI]

A Near-Infrared Cell Tracker Reagent for Multiscopic In Vivo Imaging and Quantification in a broad, multi-scale context. Although tomographic and microscopy-based far and near infrared fluorescence imaging. Citation: Swirski FK, Berger CR, Figueiredo J-L, Mempel TR, von Andrian UH, et al (2007) A Near-Infrared

von Andrian, Ulrich H.

463

Extended Near-Infrared Resonance Raman Investigations of an Organic Mixed-Valence System: Diazatetracyclodiene Radical Cation  

E-Print Network [OSTI]

Extended Near-Infrared Resonance Raman Investigations of an Organic Mixed-Valence System near-infrared region show that six modes are coupled to the intramolecular charge-transfer transition transfer (IVCT) absorption bands in the red to near- infrared region of the spectrum, which are, at least

464

The Mauna Kea Observatories Near-Infrared Filter Set. I: Defining Optima 1-5m Bandpasses  

E-Print Network [OSTI]

The Mauna Kea Observatories Near-Infrared Filter Set. I: Defining Optima 1-5µm Bandpasses D. A #12;The Mauna Kea Observatories Near-Infrared Filter Set. I: Defining Optimal 1­5 µm Bandpasses D. A. This was discussed in detail by Young et al. (1994). The Mauna Kea Observatories Near-Infrared (MKO-NIR) filters

465

Achieving Subdiffraction Imaging through Bound Surface States in Negative Refraction Photonic Crystals in the Near-Infrared Range  

E-Print Network [OSTI]

Crystals in the Near-Infrared Range R. Chatterjee,1 N. C. Panoiu,2 K. Liu,1 Z. Dios,1 M. B. Yu,3 M. T. Doan improvement over recent efforts in the near-infrared range, with a 0.4 THz bandwidth. Supported by numerical structures [7], and dielectric metamaterials in the midinfrared [8] and near- infrared [9], also suggest

Hone, James

466

F Labeling of a Near-Infrared Fluorophore Enables Positron Emission Tomography and Optical Imaging of Sentinel Lymph Nodes  

E-Print Network [OSTI]

Fast 18 F Labeling of a Near-Infrared Fluorophore Enables Positron Emission Tomography and Optical- with a near-infrared fluorophore into a single molecule. Attachment to targeting ligands enables localization by positron emission tomography (PET) and near-infrared fluorescence (NIRF). Our first application

Tsien, Roger Y.

467

Spectroscopic research on infrared emittance of coal ash deposits  

SciTech Connect (OSTI)

This paper deals with thermal radiation characteristics of ash deposits on a pulverized coal combustion boiler of an electric power plant. Normal emittance spectra in the near to medium infrared (2.5-25 {mu}m) region and total normal emittances were measured on four kinds of ground ash deposits. Measurements were conducted in the 570-1460 K temperature range which is common for boiler furnaces, by both heating and cooling the ash samples, with the aim to study the effect of their thermal history. Dependence of emittance on wavelength, temperature and chemical composition was studied, too. Samples were tested for transparency (opacity) to verify the accuracy of results. It was determined that the thicknesses used for the ash powders are opaque for infrared radiation for thicknesses in the order of a millimeter. Tests have shown that spectral emittance increases with an increase of wavelength with a characteristic pattern common for all samples. Spectral normal emittance increases strongly with temperature at shorter wavelengths and remains high and unchanged at longer ones. Emittance spectra are not very sensitive to chemical composition of ashes especially beyond {lambda} {approx} 5 {mu}m. With an increase of temperature, total emittance of the powdered sample decreases to a minimum value around 1200 K. Further temperature rise induces an increase of total emittance due to sintering in the ash. On cooling, the emittance increases monotonically following the hysteresis. Quantitative directions for evaluating thermal radiation characteristics of ash deposits for the merits of the safety design of boiler furnaces were proposed. That comprises correlating the experimentally obtained emittance spectra with curves of simple analytical form, i.e., a continuous function of minimum emittance vs. wavelength. The proposed method can be extended to other specimens from the same furnace and used to determine correlations for thermal calculation of old and design of new furnaces - with similar geometry and combusting similar coal. The method is potentially applicable to completely different boiler furnaces combusting different coal, and the authors recommend running the tests with new deposit samples. The data will then be applicable to the thermal design of a whole new class of furnaces, having similar geometry and combusting similar coal. This is expected to greatly enhance the accuracy and precision of thermal calculation as well as the efficiency of thermal design of steam boilers. (author)

Saljnikov, Aleksandar; Komatina, Mirko; Gojak, Milan [Department of Thermomechanics, Faculty of Mechanical Engineering, University of Belgrade, Kraljice Marije 16, 11120 Belgrade 35 (RS); Vucicevic, Biljana [Laboratory for Thermal Engineering, Institute of Nuclear Sciences VINCA, P.O. Box 522, Belgrade 11001 (RS); Goricanec, Darko [Faculty of Chemistry and Chemical Engineering, University of Maribor, Smetanova 17, Maribor 2000 (Slovenia); Stevanovic, Zoran [Faculty of Mining and Geology, University of Belgrade, Dusina 7, 11120 Belgrade 35 (RS)

2009-11-15T23:59:59.000Z

468

CALIBRATION OF THE MID-INFRARED TULLY-FISHER RELATION  

SciTech Connect (OSTI)

Distance measures on a coherent scale around the sky are required to address the outstanding cosmological problems of the Hubble constant and of departures from the mean cosmic flow. The correlation between galaxy luminosities and rotation rates can be used to determine the distances to many thousands of galaxies in a wide range of environments potentially out to 200 Mpc. Mid-infrared (3.6 {mu}m) photometry with the Spitzer Space Telescope is particularly valuable as a source of luminosities because it provides products of uniform quality across the sky. From a perch above the atmosphere, essentially the total magnitude of targets can be registered in exposures of a few minutes. Extinction is minimal and the flux is dominated by the light from old stars, which is expected to correlate with the mass of the targets. In spite of the superior photometry, the correlation between mid-infrared luminosities and rotation rates extracted from neutral hydrogen profiles is slightly degraded from the correlation found with I-band luminosities. A color correction recovers a correlation that provides comparable accuracy to that available at the I band ({approx}20% 1{sigma} in an individual distance) while retaining the advantages identified above. Without color correction, the relation between linewidth and [3.6] magnitudes is M {sup b,i,k,a}{sub [3.6]} = -20.34 - 9.74(logW{sup i}{sub mx} - 2.5). This description is found with a sample of 213 galaxies in 13 clusters that define the slope and 26 galaxies with Cepheid or tip of the red giant branch distances that define the zero point. A color-corrected parameter M{sub C{sub [{sub 3{sub .{sub 6{sub ]}}}}}} is constructed that has reduced scatter: M{sub C{sub [{sub 3{sub .{sub 6{sub ]}}}}}}= -20.34 - 9.13 (logW{sub mx}{sup i}-2.5). Consideration of the seven calibration clusters beyond 50 Mpc, outside the domain of obvious peculiar velocities, provides a preliminary Hubble constant estimate of H{sub 0} = 74 {+-} 4 km s{sup -1} Mpc{sup -1}.

Sorce, Jenny G.; Courtois, Helene M. [Institut de Physique Nucleaire, Universite Claude Bernard Lyon I, Lyon (France); Tully, R. Brent [Institute for Astronomy, University of Hawaii, 2680 Woodlawn Drive, HI 96822 (United States); Seibert, Mark; Scowcroft, Victoria; Freedman, Wendy L.; Madore, Barry F.; Persson, S. Eric; Monson, Andy [Carnegie Observatories, 813 Santa Barbara Street, Pasadena, CA 91101 (United States); Rigby, Jane, E-mail: j.sorce@ipnl.in2p3.fr [Observational Cosmology Lab, NASA Goddard Space Flight Center, Greenbelt, MD 20771 (United States)

2013-03-10T23:59:59.000Z

469

THE WFC3 INFRARED SPECTROSCOPIC PARALLEL (WISP) SURVEY  

SciTech Connect (OSTI)

We present the WFC3 Infrared Spectroscopic Parallel (WISP) Survey. WISP is obtaining slitless, near-infrared grism spectroscopy of {approx}90 independent, high-latitude fields by observing in the pure-parallel mode with the Wide Field Camera Three on the Hubble Space Telescope for a total of {approx}250 orbits. Spectra are obtained with the G{sub 102} ({lambda} = 0.8-1.17 {mu}m, R {approx}210) and G{sub 141} grisms ({lambda} = 1.11-1.67 {mu}m, R {approx}130), together with direct imaging in the J and H bands (F110W and F140W, respectively). In the present paper, we present the first results from 19 WISP fields, covering approximately 63 arcmin{sup 2}. For typical exposure times ({approx}6400 s in G{sub 102} and {approx}2700 s in G{sub 141}), we reach 5{sigma} detection limits for emission lines of f {approx} 5 x 10{sup -17} erg s{sup -1} cm{sup -2} for compact objects. Typical direct imaging 5{sigma} limits are 26.3 and 26.1 mag. (AB) in F110W and F140W, respectively. Restricting ourselves to the lines measured with the highest confidence, we present a list of 328 emission lines, in 229 objects, in a redshift range 0.3 < z < 3. The single-line emitters are likely to be a mix of H{alpha} and [O III]5007,4959 A, with H{alpha} predominating. The overall surface density of high-confidence emission-line objects in our sample is approximately 4 per arcmin{sup 2}. These first fields show high equivalent width sources, active galactic nucleus, and post-starburst galaxies. The median observed star formation rate (SFR) of our H{alpha}-selected sample is 4 M{sub sun} yr{sup -1}. At intermediate redshifts, we detect emission lines in galaxies as faint as H{sub 140} {approx} 25, or M{sub R} < -19, and are sensitive to SFRs down to less than 1 M{sub sun} yr{sup -1}. The slitless grisms on WFC3 provide a unique opportunity to study the spectral properties of galaxies much fainter than L* at the peak of the galaxy assembly epoch.

Atek, H.; Scarlata, C.; Colbert, J. W.; Shim, H. [Spitzer Science Center, Caltech, Pasadena, CA 91125 (United States); Malkan, M.; Ross, N. R. [Department of Physics and Astronomy, University of California, Los Angeles, CA 90024 (United States); McCarthy, P.; Dressler, A. [Observatories of the Carnegie Institution for Science, Pasadena, CA 91101 (United States); Teplitz, H. I. [Infrared Processing and Analysis Center, Caltech, Pasadena, CA 91125 (United States); Siana, B.; Bridge, C. [Department of Astronomy, Caltech, Pasadena, CA 91125 (United States); Henry, A.; Martin, C. [Department of Physics, University of California, Santa Barbara, CA 93106 (United States); Bunker, A. J. [Department of Physics, University of Oxford, Denys Wilkinson Building, Keble Road, OX13RH (United Kingdom); Fosbury, R. A. E. [Space Telescope-European Coordinating Facility, Garching (Germany)

2010-11-01T23:59:59.000Z

470

Enhanced visible and near-infrared capabilities of the JET mirror-linked divertor spectroscopy system  

SciTech Connect (OSTI)

The mirror-linked divertor spectroscopy diagnostic on JET has been upgraded with a new visible and near-infrared grating and filtered spectroscopy system. New capabilities include extended near-infrared coverage up to 1875 nm, capturing the hydrogen Paschen series, as well as a 2 kHz frame rate filtered imaging camera system for fast measurements of impurity (Be II) and deuterium D?, D?, D? line emission in the outer divertor. The expanded system provides unique capabilities for studying spatially resolved divertor plasma dynamics at near-ELM resolved timescales as well as a test bed for feasibility assessment of near-infrared spectroscopy.

Lomanowski, B. A., E-mail: b.a.lomanowski@durham.ac.uk; Sharples, R. M. [Centre for Advanced Instrumentation, Department of Physics, Durham University, Durham DH1 3LE (United Kingdom); Meigs, A. G.; Conway, N. J.; Zastrow, K.-D.; Heesterman, P.; Kinna, D. [EURATOM/CCFE Fusion Association, Culham Science Center, Abingdon OX14 3DB (United Kingdom); Collaboration: JET-EFDA Team

2014-11-15T23:59:59.000Z

471

A REDSHIFT SURVEY OF HERSCHEL FAR-INFRARED SELECTED STARBURSTS AND IMPLICATIONS FOR OBSCURED STAR FORMATION  

SciTech Connect (OSTI)

We present Keck spectroscopic observations and redshifts for a sample of 767 Herschel-SPIRE selected galaxies (HSGs) at 250, 350, and 500 {mu}m, taken with the Keck I Low Resolution Imaging Spectrometer and the Keck II DEep Imaging Multi-Object Spectrograph. The redshift distribution of these SPIRE sources from the Herschel Multitiered Extragalactic Survey peaks at z = 0.85, with 731 sources at z < 2 and a tail of sources out to z {approx} 5. We measure more significant disagreement between photometric and spectroscopic redshifts (({Delta}z/(1 + z{sub spec})) = 0.29) than is seen in non-infrared selected samples, likely due to enhanced star formation rates and dust obscuration in infrared-selected galaxies. The infrared data are used to directly measure integrated infrared luminosities and dust temperatures independent of radio or 24 {mu}m flux densities. By probing the dust spectral energy distribution (SED) at its peak, we estimate that the vast majority (72%-83%) of z < 2 Herschel-selected galaxies would drop out of traditional submillimeter surveys at 0.85-1 mm. We find that dust temperature traces infrared luminosity, due in part to the SPIRE wavelength selection biases, and partially from physical effects. As a result, we measure no significant trend in SPIRE color with redshift; if dust temperature were independent of luminosity or redshift, a trend in SPIRE color would be expected. Composite infrared SEDs are constructed as a function of infrared luminosity, showing the increase in dust temperature with luminosity, and subtle change in near-infrared and mid-infrared spectral properties. Moderate evolution in the far-infrared (FIR)/radio correlation is measured for this partially radio-selected sample, with q{sub IR}{proportional_to}(1 + z){sup -0.30{+-}0.02} at z < 2. We estimate the luminosity function and implied star formation rate density contribution of HSGs at z < 1.6 and find overall agreement with work based on 24 {mu}m extrapolations of the LIRG, ULIRG, and total infrared contributions. This work significantly increased the number of spectroscopically confirmed infrared-luminous galaxies at z >> 0 and demonstrates the growing importance of dusty starbursts for galaxy evolution studies and the build-up of stellar mass throughout cosmic time.

Casey, C. M.; Budynkiewicz, J. [Institute for Astronomy, University of Hawaii, 2680 Woodlawn Drive, Honolulu, HI 96822 (United States); Berta, S.; Lutz, D.; Magnelli, B. [Max-Planck-Institut fuer Extraterrestrische Physik, Giessenbachstrasse, 85748 Garching (Germany); Bethermin, M.; Le Floc'h, E.; Magdis, G. [Laboratoire AIM-Paris-Saclay, CEA/DSM/Irfu - CNRS - Universite Paris Diderot, CE-Saclay, pt courrier 131, F-91191 Gif-sur-Yvette (France); Bock, J.; Bridge, C. [California Institute of Technology, 1200 E. California Blvd., Pasadena, CA 91125 (United States); Burgarella, D. [Laboratoire d'Astrophysique de Marseille - LAM, Universite d'Aix-Marseille and CNRS, UMR7326, 38 rue F. Joliot-Curie, 13388 Marseille Cedex 13 (France); Chapin, E. [Department of Physics and Astronomy, University of British Columbia, 6224 Agricultural Road, Vancouver, BC V6T 1Z1 (Canada); Chapman, S. C. [Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA (United Kingdom); Clements, D. L. [Astrophysics Group, Imperial College London, Blackett Laboratory, Prince Consort Road, London SW7 2AZ (United Kingdom); Conley, A. [Center for Astrophysics and Space Astronomy 389-UCB, University of Colorado, Boulder, CO 80309 (United States); Conselice, C. J. [School of Physics and Astronomy, University of Nottingham, NG7 2RD (United Kingdom); Cooray, A. [Dept. of Physics and Astronomy, University of California, Irvine, CA 92697 (United States); Farrah, D. [Department of Physics, Virginia Tech, Blacksburg, VA 24061 (United States); Hatziminaoglou, E. [ESO, Karl-Schwarzschild-Str. 2, 85748 Garching bei Muenchen (Germany); Ivison, R. J. [UK Astronomy Technology Centre, Royal Observatory, Blackford Hill, Edinburgh EH9 3HJ (United Kingdom); and others

2012-12-20T23:59:59.000Z

472

Magnetic Fields in High-Mass Infrared Dark Clouds  

E-Print Network [OSTI]

High-mass Stars are cosmic engines known to dominate the energetics in the Milky Way and other galaxies. However, their formation is still not well understood. Massive, cold, dense clouds, often appearing as Infrared Dark Clouds (IRDCs), are the nurseries of massive stars. No measurements of magnetic fields in IRDCs in a state prior to the onset of high-mass star formation (HMSF) have previously been available, and prevailing HMSF theories do not consider strong magnetic fields. Here, we report observations of magnetic fields in two of the most massive IRDCs in the Milky Way. We show that IRDCs G11.11-0.12 and G0.253+0.016 are strongly magnetized and that the strong magnetic field is as important as turbulence and gravity for HMSF. The main dense filament in G11.11-0.12 is perpendicular to the magnetic field, while the lower density filament merging onto the main filament is parallel to the magnetic field. The implied magnetic field is strong enough to suppress fragmentation sufficiently to allow HMSF. Other ...

Pillai, Thushara; Tan, Jonathan; Goldsmith, Paul; Carey, Sean; Menten, Karl

2014-01-01T23:59:59.000Z

473

The Visible and Near Infrared module of EChO  

E-Print Network [OSTI]

The Visible and Near Infrared (VNIR) is one of the modules of EChO, the Exoplanets Characterization Observatory proposed to ESA for an M-class mission. EChO is aimed to observe planets while transiting by their suns. Then the instrument had to be designed to assure a high efficiency over the whole spectral range. In fact, it has to be able to observe stars with an apparent magnitude Mv= 9-12 and to see contrasts of the order of 10-4 - 10-5 necessary to reveal the characteristics of the atmospheres of the exoplanets under investigation. VNIR is a spectrometer in a cross-dispersed configuration, covering the 0.4-2.5 micron spectral range with a resolving power of about 330 and a field of view of 2 arcsec. It is functionally split into two channels respectively working in the 0.4-1 and 1.0-2.5 micron spectral ranges. Such a solution is imposed by the fact the light at short wavelengths has to be shared with the EChO Fine Guiding System (FGS) devoted to the pointing of the stars under observation. The spectromete...

Adriani, A; Gambicorti, L; Focardi, M; Oliva, E; Farina, M; Di Giorgio, A M; Santoli, F; Pace, E; Piccioni, G; Filacchione, G; Pancrazzi, M; Tozzi, A; Micela, G

2014-01-01T23:59:59.000Z

474

Probing stellar accretion with mid-infrared hydrogen lines  

E-Print Network [OSTI]

In this paper we investigate the origin of the mid-infrared (IR) hydrogen recombination lines for a sample of 114 disks in different evolutionary stages (full, transitional and debris disks) collected from the {\\it Spitzer} archive. We focus on the two brighter {H~{\\sc i}} lines observed in the {\\it Spitzer} spectra, the {H~{\\sc i}}(7-6) at 12.37$\\mu$m and the {H~{\\sc i}}(9-7) at 11.32$\\mu$m. We detect the {H~{\\sc i}}(7-6) line in 46 objects, and the {H~{\\sc i}}(9-7) in 11. We compare these lines with the other most common gas line detected in {\\it Spitzer} spectra, the {[Ne~{\\sc iii}]} at 12.81$\\mu$m. We argue that it is unlikely that the {H~{\\sc i}} emission originates from the photoevaporating upper surface layers of the disk, as has been found for the {[Ne~{\\sc iii}]} lines toward low-accreting stars. Using the {H~{\\sc i}}(9-7)/{H~{\\sc i}}(7-6) line ratios we find these gas lines are likely probing gas with hydrogen column densities of 10$^{10}$-10$^{11}$~cm$^{-3}$. The subsample of objects surrounded by ...

Rigliaco, Elisabetta; Duchene, G; Edwards, S; Ardila, D R; Grady, C; Mendiguta, I; Montesinos, B; Mulders, G D; Najita, J R; Carpenter, J; Furlan, E; Gorti, U; Meijerink, R; Meyer, M R

2015-01-01T23:59:59.000Z

475

A calibration procedure for sonic infrared nondestructive evaluation  

SciTech Connect (OSTI)

Sonic infrared is potentially a very attractive nondestructive evaluation technique offering the possibility of rapid testing of complex components. However, at present it is difficult to be sure that sufficient excitation has been applied so that a null (no defect present) result can be trusted. This paper presents a calibration method to improve the reliability of the technique. The method uses a measurement of the vibration of the component during the test, the vibration signal being processed to give a 'heating index' which is a measure of the ability of the vibration field to generate heat at any defects of interest that are present. The calculation of the heating index and the rationale for its formulation are described. The method is then applied on two sets of beamlike specimens with cracks of different sizes. The maximum temperature rise in successive tests on a given specimen is shown to correlate well with the maximum heating index, so validating the method. The threshold heating index required to reliably detect cracks as a function of crack size is discussed and practical calibration and test procedures are proposed.

Morbidini, M.; Cawley, P. [Department of Mechanical Engineering, UK Research Centre in NDE, Imperial College, London SW7 2AZ (United Kingdom)

2009-07-15T23:59:59.000Z

476

The Far-Infrared Surveyor (FIS) for AKARI  

E-Print Network [OSTI]

The Far-Infrared Surveyor (FIS) is one of two focal plane instruments on the AKARI satellite. FIS has four photometric bands at 65, 90, 140, and 160 um, and uses two kinds of array detectors. The FIS arrays and optics are designed to sweep the sky with high spatial resolution and redundancy. The actual scan width is more than eight arcmin, and the pixel pitch is matches the diffraction limit of the telescope. Derived point spread functions (PSFs) from observations of asteroids are similar to the optical model. Significant excesses, however, are clearly seen around tails of the PSFs, whose contributions are about 30% of the total power. All FIS functions are operating well in orbit, and its performance meets the laboratory characterizations, except for the two longer wavelength bands, which are not performing as well as characterized. Furthermore, the FIS has a spectroscopic capability using a Fourier transform spectrometer (FTS). Because the FTS takes advantage of the optics and detectors of the photometer, it can simultaneously make a spectral map. This paper summarizes the in-flight technical and operational performance of the FIS.

Mitsunobu Kawada; Hajime Baba; Peter D. Barthel; David Clements; Martin Cohen; Yasuo Doi; Elysandra Figueredo; Mikio Fujiwara; Tomotsugu Goto; Sunao Hasegawa; Yasunori Hibi; Takanori Hirao; Norihisa Hiromoto; Woong-Seob Jeong; Hidehiro Kaneda; Toshihide Kawai; Akiko Kawamura; Do Kester; Tsuneo Kii; Hisato Kobayashi; Suk Minn Kwon; Hyung Mok Lee; Sin'itirou Makiuti; Hiroshi Matsuo; Shuji Matsuura; Thomas G. Mller; Noriko Murakami; Hirohisa Nagata; Takao Nakagawa; Masanao Narita; Manabu Noda; Sang Hoon Oh; Yoko Okada; Haruyuki Okuda; Sebastian Oliver; Takafumi Ootsubo; Soojong Pak; Yong-Sun Park; Chris P. Pearson; Michael Rowan-Robinson; Toshinobu Saito; Alberto Salama; Shinji Sato; Richard S. Savage; Stephen Serjeant; Hiroshi Shibai; Mai Shirahata; Jungjoo Sohn; Toyoaki Suzuki; Toshinobu Takagi; Hidenori Takahashi; Matthew Thomson; Fumihiko Usui; Eva Verdugo; Toyoki Watabe; Glenn J. White; Lingyu Wang; Issei Yamamura; Chisato Yamamuchi; Akiko Yasuda

2007-08-22T23:59:59.000Z

477

Star formation around the mid-infrared bubble CN 148  

E-Print Network [OSTI]

We present a multi-wavelength study to analyse the star formation process associated with the mid-infrared bubble CN 148 (H II region G10.3-0.1), which harbors an O5V-O6V star. The arc-shaped distribution of molecular CO(2-1) emission, the cold dust emission, and the polycyclic aromatic hydrocarbon features trace a photodissociation region (PDR) around the H II region. We have identified 371 young stellar objects (YSOs) in the selected region and, interestingly, their spatial distribution correlates well with the PDR. 41% of these YSOs are present in 13 clusters, each having visual extinction larger than 16 mag. The clusters at the edges of the bubble (both northeast and southwest) are found to be relatively younger than the clusters located further away from the bubble. We also find that four 6.7 GHz methanol masers, two Extended Green Objects, an ultra-compact H II region, and a massive protostar candidate (as previously reported) are spatially positioned at the edges of the bubble. The existence of an appa...

Dewangan, L K; Grave, J M C; Mallick, K K

2014-01-01T23:59:59.000Z

478

SPITZER OBSERVATIONS OF BLACK HOLE LOW-MASS X-RAY BINARIES: ASSESSING THE NON-STELLAR INFRARED COMPONENT  

SciTech Connect (OSTI)

We have combined ground-based optical and near-infrared data with Spitzer Space Telescope mid-infrared data for five black hole (BH) soft X-ray transients (SXTs) in order to determine the levels of near- and mid-infrared emission from sources other than the secondary star. Mid-infrared emission from an accretion disk, circumbinary dust, and/or a jet could act as sources of near-infrared contamination, thereby diluting ellipsoidal variations of the secondary star and affecting determined BH mass estimates. Based on optical to mid-infrared spectral energy distribution modeling of the five SXTs along with the prototype, V616 Mon, we detected mid-infrared excesses in half of the systems, and suggest that the excesses detected from these systems arise from non-thermal synchrotron jets rather than circumbinary dust disks.

Gelino, Dawn M. [NASA Exoplanet Science Institute, California Institute of Technology, Pasadena, CA 91125 (United States); Gelino, Christopher R. [Infrared Processing and Analysis Center, California Institute of Technology, Pasadena, CA 91125 (United States); Harrison, Thomas E., E-mail: dawn@ipac.caltech.ed [New Mexico State University, Las Cruces, NM 88003 (United States)

2010-07-20T23:59:59.000Z

479

Boussinesq Equations and Other Systems for Small-Amplitude Long Waves in Nonlinear Dispersive Media. I: Derivation and Linear Theory  

Science Journals Connector (OSTI)

...Considered herein are a number of variants of the classical Boussinesq system and their higher-order generalizations. Such equations were first derived by Boussinesq to describe the two-way propagation of ... ...

Bona; Chen; Saut

2002-08-01T23:59:59.000Z

480

CPU/GPU computing for long-wave radiation physics on large GPU clusters Fengshun Lu n  

E-Print Network [OSTI]

within the Tianhe-1A supercomputer. Experimental results demonstrate that the hybrid version can expensive that it is often performed with coarser grid resolutions and longer time steps in operational heavily on HPC platforms. Owing to the continuous evolution of the computational infrastructure

Bridges, Patrick

Note: This page contains sample records for the topic "geothermometry long-wave infrared" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


481

GeoT User's Guide: A Computer Program for Multicomponent Geothermometry and Geochemical Speciation, Version 1.4  

E-Print Network [OSTI]

Variable: Format: NAME_S ICON TRIAL_C A I F INPUT_C F NAME_+ and H 2 O), in any order ICON: flag to specify the meaningactual species. For pH, use ICON=3 and input 10 pH . The

Sonnenthal, N. Spycher, N., L. Peiffer, and E.

2014-01-01T23:59:59.000Z

482

Thermal And-Or Near Infrared At Alum Area (DOE GTP) | Open Energy  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » Thermal And-Or Near Infrared At Alum Area (DOE GTP) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Thermal And-Or Near Infrared At Alum Geothermal Area (DOE GTP) Exploration Activity Details Location Alum Geothermal Area Exploration Technique Thermal And-Or Near Infrared Activity Date Usefulness not indicated DOE-funding Unknown References (1 January 2011) GTP ARRA Spreadsheet Retrieved from "http://en.openei.org/w/index.php?title=Thermal_And-Or_Near_Infrared_At_Alum_Area_(DOE_GTP)&oldid=402991" Categories: Exploration Activities

483

A Statistics-Based Method For The Short-Wave Infrared Spectral Analysis Of  

Open Energy Info (EERE)

Statistics-Based Method For The Short-Wave Infrared Spectral Analysis Of Statistics-Based Method For The Short-Wave Infrared Spectral Analysis Of Altered Rocks- An Example From The Acoculco Caldera, Eastern Trans-Mexican Volcanic Belt Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: A Statistics-Based Method For The Short-Wave Infrared Spectral Analysis Of Altered Rocks- An Example From The Acoculco Caldera, Eastern Trans-Mexican Volcanic Belt Details Activities (0) Areas (0) Regions (0) Abstract: We propose a simple graphic and statistical method for processing short-wave infrared (SWIR) reflectivity spectra of alteration minerals, which classifies spectra according to their shape and absorption features, thus obtaining groups of spectra equivalent to mineral assemblages. It also permits selection of fewer samples for further mineralogical verification.

484

Infrared Cloud Imager Deployment at the North Slope of Alaska During Early 2002  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Infrared Cloud Imager Deployment Infrared Cloud Imager Deployment at the North Slope of Alaska During Early 2002 J. A. Shaw and B. Thurairajah Department of Electrical and Computer Engineering Montana State University Bozeman, Montana E. Edqvist National Oceanic and Atmospheric Administration Environmental Technology Laboratory Boulder, Colorado K. Mizutani Communications Research Laboratory Koganei, Tokyo, Japan Introduction Starting in February 2002, we deployed a new cloud-radiation sensor called the infrared cloud imager (ICI) at the North Slope of Alaska (NSA) site near Barrow, Alaska (71.32 N, 156.62 W). ICI records radiometrically calibrated images of the thermal infrared sky radiance in the 8µm to 14 µm wavelength band, from which spatial cloud statistics and spatially resolved cloud radiance can be determined.

485

E-Print Network 3.0 - astronomical infrared spectroscopy Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

T-ReCS ... Source: De Buizer, James Michael - Stratospheric Observatory for Infrared Astronomy, NASA Ames Research Center Collection: Physics 2 arXiv:astro-ph0402572v124Feb2004...

486

Final LDRD report : infrared detection and power generation using self-assembled quantum dots.  

SciTech Connect (OSTI)

Alternative solutions are desired for mid-wavelength and long-wavelength infrared radiation detection and imaging arrays. We have investigated quantum dot infrared photodetectors (QDIPs) as a possible solution for long-wavelength infrared (8 to 12 {mu}m) radiation sensing. This document provides a summary for work done under the LDRD 'Infrared Detection and Power Generation Using Self-Assembled Quantum Dots'. Under this LDRD, we have developed QDIP sensors and made efforts to improve these devices. While the sensors fabricated show good responsivity at 80 K, their detectivity is limited by high noise current. Following efforts concentrated on how to reduce or eliminate this problem, but with no clear path was identified to the desired performance improvements.

Cederberg, Jeffrey George; Ellis, Robert; Shaner, Eric Arthur

2008-02-01T23:59:59.000Z

487

Quantifying Ethanol Content of Beer Using Interpretive Near-Infrared Spectroscopy  

Science Journals Connector (OSTI)

On the basis of absorption measurements in the near-infrared (NIR) spectral range, a new method for the quantification of the ethanol content of beer is presented. Instead of the...

Engelhard, Sonja; Lhmannsrben, Hans-Gerd; Schael, Frank

2004-01-01T23:59:59.000Z

488

Detection of Ethanol in Wines Using Optical-Fiber Measurements and Near-Infrared Analysis  

Science Journals Connector (OSTI)

Optical-fiber measurements coupled with near-infrared analysis is used to predict the ethanol content of wine samples to within 0.33 volume percent. Because telecommunications-grade...

Buchanan, B R; Honigs, D E; Lee, Cynthia J; Roth, William

1988-01-01T23:59:59.000Z

489

Recognizing targets from infrared intensity scan patterns using artificial neural networks  

E-Print Network [OSTI]

Recognizing targets from infrared intensity scan patterns using artificial neural networks Tayfun complicating the localization and recognition process. We employ artificial neural networks to deter- mine differentiation; artificial neural networks; optimal brain surgeon; pattern recognition. Paper 080450R received

Barshan, Billur

490

Near-infrared photodetector consisting of J-aggregating cyanine dye and metal oxide thin films  

E-Print Network [OSTI]

We demonstrate a near-infrared photodetector that consists of a thin film of the J-aggregating cyanine dye, U3, and transparent metal-oxide charge transport layers. The high absorption coefficient of the U3 film, combined ...

Osedach, Timothy P.

491

Thermal tuning of mid-infrared plasmonic antenna arrays using a phase change material  

Science Journals Connector (OSTI)

We demonstrate that the resonances of infrared plasmonic antennas can be tuned or switched on/off by taking advantage of the thermally driven insulator-to-metal phase transition in...

Kats, Mikhail A; Blanchard, Romain; Genevet, Patrice; Yang, Zheng; Qazilbash, M Mumtaz; Basov, D N; Ramanathan, Shriram; Capasso, Federico

2013-01-01T23:59:59.000Z

492

Highly resolved chemical imaging of living cells by using synchrotron infrared microspectrometry  

Science Journals Connector (OSTI)

...Institut Curie, F75248 Paris Cedex 05, France; and National Synchroton Light Source, Brookhaven National Laboratory, Upton...mu}s scanning infrared microspectrometer and the National Synchroton Light Source at Brookhaven National Laboratory. Spectra were...

Nadge Jamin; Paul Dumas; Janine Moncuit; Wolf-Herman Fridman; Jean-Luc Teillaud; G. Lawrence Carr; Gwyn P. Williams

1998-01-01T23:59:59.000Z

493

Bayesian recognition of targets by parts in second generation forward looking infrared images  

E-Print Network [OSTI]

of targets in second generation forward looking infrared images (FLIR). The recognition of targets is based into its parts and results obtained for target recognition in second generation FLIR images are also

Aggarwal, J. K.

494

Thermal effects limitations in mid-infrared continuous wave optical parametric oscillators  

Science Journals Connector (OSTI)

Continuous-wave (cw) optical parametric oscillation (OPO) is a stringent test for the assessment of optical quality of nonlinear mid-infrared materials, because of the low intracavity loss (?1% per round-trip)...

J.-J. Zondy; A. Douillet; A. Clairon

2001-08-01T23:59:59.000Z

495

Extended Range Near-Infrared Imaging of Water and Oil in Facial Skin  

Science Journals Connector (OSTI)

Recently, near-infrared (NIR) imaging has been applied to detecting changes in skin hydration using the water OH band centered near 1460 nm. However, assigning changes in the...

Egawa, Mariko; Yanai, Motohiro; Kikuchi, Kumiko; Masuda, Yuji

2011-01-01T23:59:59.000Z

496

Unpolarized emissivity of thin oil films over anisotropic Gaussian seas in infrared window regions  

Science Journals Connector (OSTI)

In this paper, we derive the unpolarized infrared (IR) emissivity of thin oil films over anisotropic Gaussian seas from a refined physical surface spectrum model of damping due to...

Pinel, Nicolas; Bourlier, Christophe; Sergievskaya, Irina

2010-01-01T23:59:59.000Z

497

Improved Tropical Cyclone Flight-Level Wind Estimates Using Routine Infrared Satellite Reconnaissance  

Science Journals Connector (OSTI)

A new and improved method to estimate the tropical cyclone flight-level winds using globally and routinely available tropical cyclone (TC) information and infrared (IR) satellite imagery is presented. The developmental data set is comprised of ...

John A. Knaff; Scott P. Longmore; Robert T. DeMaria; Debra A. Molenar

498

Infrared near-field imaging and spectroscopy based on thermal or synchrotron radiation  

SciTech Connect (OSTI)

We demonstrate the coupling of a scattering near-field scanning optical microscope combined with a Fourier transform infrared spectrometer. The set-up operates using either the near-field thermal emission from the sample itself, which is proportional to the electromagnetic local density of states, or with an external infrared synchrotron source, which is broadband and highly brilliant. We perform imaging and spectroscopy measurements with sub-wavelength spatial resolution in the mid-infrared range on surfaces made of silicon carbide and gold and demonstrate the capabilities of the two configurations for super-resolved near-field mid-infrared hyperspectral imaging and that the simple use of a properly chosen bandpass filter on the detector allows one to image the spatial distribution of materials with sub-wavelength resolution by studying the contrast in the near-field images.

Peragut, Florian; De Wilde, Yannick, E-mail: yannick.dewilde@espci.fr [ESPCI ParisTech, PSL Research University, CNRS, Institut Langevin, 1 rue Jussieu, F-75005, Paris (France); Brubach, Jean-Blaise; Roy, Pascale [Socit Civile Synchrotron SOLEIL, L'Orme des Merisiers, St-Aubin BP48, 91192 Gif-sur-Yvette Cedex (France)

2014-06-23T23:59:59.000Z

499

Cryogenic infrared filter made of alumina for use at millimeter wavelength  

Science Journals Connector (OSTI)

We propose a high-thermal-conductivity infrared filter using alumina for millimeter-wave detection systems. We constructed a prototype two-layer antireflection-coated alumina filter...

Inoue, Yuki; Matsumura, Tomotake; Hazumi, Masashi; Lee, Adrian T; Okamura, Takahiro; Suzuki, Aritoki; Tomaru, Takayuki; Yamaguchi, Hiroshi

2014-01-01T23:59:59.000Z

500

Infrared and Raman Spectra of a Sulfur-resistant Methanation Catalyst  

Science Journals Connector (OSTI)

The infrared and Raman spectra of a sulfur-resistant NiO/Cr2O3/MgSiO3 methanation catalyst are presented and compared to the spectra of the catalyst...

Stencel, J M; Bradley, E B; Brown, Fred R

1980-01-01T23:59:59.000Z