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1

Photo of the Week: Inside the Tandem Mirror Experiment | Department of  

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

Inside the Tandem Mirror Experiment Inside the Tandem Mirror Experiment Photo of the Week: Inside the Tandem Mirror Experiment December 28, 2012 - 2:22pm Addthis This 1978 photo shows two workers inside the Mirror Fusion Test Facility, a magnetic confinement fusion device designed and built at Lawrence Livermore National Laboratory. In this experiment, magnetic mirrors are placed at both ends of a central magnetic tube. Very hot and dense plasmas inside each mirror enhanced the confinement of another plasma inside the central tube, where the bulk of the fusion would occur. | Photo courtesy of Lawrence Livermore National Laboratory. This 1978 photo shows two workers inside the Mirror Fusion Test Facility, a magnetic confinement fusion device designed and built at Lawrence Livermore National Laboratory. In this experiment, magnetic mirrors are placed at

2

Photo-patterning micro-mirror devices using azo dye-doped cholesteric liquid crystals  

E-Print Network [OSTI]

Photo-patterning micro-mirror devices using azo dye-doped cholesteric liquid crystals Tsung: A simple method for fabricating patternable micro-mirror devices by photo-induced alignment of dye to nearly perfect planar by the photo-excited adsorbed dyes. This structure transformation leads

Wu, Shin-Tson

3

Photo of the Week: The Mirror Fusion Test Facility | Department of Energy  

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

The Mirror Fusion Test Facility The Mirror Fusion Test Facility Photo of the Week: The Mirror Fusion Test Facility July 19, 2013 - 4:17pm Addthis This 1981 photo shows the Mirror Fusion Test Facility (MFTF), an experimental magnetic confinement fusion device built using a magnetic mirror at Lawrence Livermore National Laboratory (LLNL). The MFTF functioned as the primary research center for mirror fusion devices. The design consisted of a 64-meter-long vacuum vessel fitted with 26 coil magnets bonding the center of the vessel and two 400-ton yin-yang magnet mirrors at either end. The first magnet produced a magnetic field force equal to the weight of 30 jumbo jets hanging from the magnet coil. | Photo courtesy of Lawrence Livermore National Laboratory. This 1981 photo shows the Mirror Fusion Test Facility (MFTF), an

4

2011 Engineering Student Experience Photo Contest ENTRY FORM One entry form per photo  

E-Print Network [OSTI]

1 2011 Engineering Student Experience Photo Contest ­ ENTRY FORM One entry form per photo Student: _________________________________________________ This photo was taken while I was on: Internship Exchange Student project Other This photo was taken in _______________ (month) of ___________ (year) Photo file title (Photo contest 2011_ LASTNAME_INITIALS_Category_Photo

Barthelat, Francois

5

Photo Galleries | Department of Energy  

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

SunShot Grand Challenge SunShot Grand Challenge Inside the Tandem Mirror Experiment Photo of the Week Franklin County Courthouse (Before) Franklin County Courthouse: Before and...

6

Current results of the tandem mirror experiment  

SciTech Connect (OSTI)

The basic operating characteristics of the Tandem Mirror Experiment, (TMX) at the Lawrence Livermore Laboratory in the USA have been established. Tandem-mirror plasmas have been produced using neutral-beam-fueled end plugs and a gas-fueled center cell. An axial potential well between the end plugs has been measured. There is direct evidence that this potential well enhances the axial confinement of the center-cell ions. The observed densities and loss currents are consistent with preliminary studies of the particle sources and losses near the magnetic axis. The observed confinement is consistent with theory when plasma fluctuations are low. When the requirement of drift-cyclotron loss-cone mode stability is violated, the plasma fluctuations degrade the center-cell confinement.

Drake, R.P.

1980-04-09T23:59:59.000Z

7

TMX-U (Tandem Mirror Experiment-Upgrade) tandem-mirror thermal-barrier experiments  

SciTech Connect (OSTI)

Thermal-barrier experiments have been carried out in the Tandem Mirror Experiment-Upgrade (TMX-U). Measurements of nonambipolar and ambipolar radial transport show that these transport processes, as well as end losses, can be controlled at modest densities and durations. Central-cell heating methods using ion-cyclotron heating (ICH) and neutral-beam injection have been demonstrated. Potential mesurements with recently developed methods indicate that deep thermal barriers can be established.

Simonen, T.C.; Allen, S.L.; Baldwin, D.E.; Barter, J.D.; Berzins, L.V.; Carter, M.R.; Casper, T.A.; Clauser, J.F.; Coensgen, F.H.; Correll, D.L.

1986-10-29T23:59:59.000Z

8

Photo-Thermal Transfer Function of Dielectric Mirrors for Precision Measurements  

E-Print Network [OSTI]

The photo-thermal transfer function from absorbed power incident on a dielectric mirror to the effective mirror position is calculated using the coating design as input. The effect is found to change in amplitude and sign for frequencies corresponding to diffusion length comparable to the coating thickness. Transfer functions are calculated for the $Ti$-doped ${\\rm Ta_2O_5:SiO_2}$ coating used in Advanced LIGO and for a crystalline ${\\rm Al_xGa_{1-x}As}$ coating. The shape of the transfer function at high frequencies is shown to be a sensitive indicator of the effective absorption depth, providing a potentially powerful tool to distinguish coating-internal absorption from surface contamination related absorption. The sign change of the photo-thermal effect could also be useful to stabilize radiation pressure-based opto-mechanical systems. High frequency corrections to the previously published thermo-optic noise estimates are also provided. Finally, estimating the quality of the thermo-optic noise cancellation occurring in fine-tuned ${\\rm Al_xGa_{1-x}As}$ coatings requires the detailed heat flow analysis done in this paper.

Stefan W. Ballmer

2014-11-10T23:59:59.000Z

9

Photo-Thermal Transfer Function of Dielectric Mirrors for Precision Measurements  

E-Print Network [OSTI]

The photo-thermal transfer function from absorbed power incident on a dielectric mirror to the effective mirror position is calculated using the coating design as input. The effect is found to change in amplitude and sign for frequencies corresponding to diffusion length comparable to the coating thickness. Transfer functions are calculated for the $Ti$-doped ${\\rm Ta_2O_5:SiO_2}$ coating used in Advanced LIGO and for a crystalline ${\\rm Al_xGa_{1-x}As}$ coating. The shape of the transfer function at high frequencies is shown to be a sensitive indicator of the effective absorption depth, providing a potentially powerful tool to distinguish coating-internal absorption from surface contamination related absorption. The sign change of the photo-thermal effect could also be useful to stabilize radiation pressure-based opto-mechanical systems. High frequency corrections to the previously published thermo-optic noise estimates are also provided. Finally, estimating the quality of the thermo-optic noise cancellation occurring in fine-tuned ${\\rm Al_xGa_{1-x}As}$ coatings requires the detailed heat flow analysis done in this paper.

Stefan W. Ballmer

2015-01-07T23:59:59.000Z

10

Technology for large tandem mirror experiments  

SciTech Connect (OSTI)

Construction of a large tandem mirror (MFTF-B) will soon begin at Lawrence Livermore National Laboratory (LLNL). Designed to reach break-even plasma conditions, the facility will significantly advance the physics and technology of magnetic-mirror-based fusion reactors. This paper describes the objectives and the design of the facility.

Thomassen, K.I.

1980-09-04T23:59:59.000Z

11

Electrostatic plasma-confinement experiments in a tandem mirror system  

SciTech Connect (OSTI)

Results from the tandem mirror experiment are described. The configuration of axial density and potential profiles are created and sustained by neutral-beam injection and gas fueling. Plasma confinement in the center cell is shown to be improved by the end plugs by as much as a factor of 9. The electron temperature is higher than that achieved in our earlier 2XIIB single-cell mirror experiment.

Coensgen, F.H.; Anderson, C.A.; Casper, T.A.; Clauser, J.F.; Condit, W.C.; Correll, D.L.; Cummins, W.F.; Davis, J.C.; Drake, R.P.; Foote, J.H.; Futch, A.H.; Goodman, R.K.; Grubb, D.P.; Hallock, G.A.; Hornady, R.S.; Hunt, A.L.; Logan, B.G.; Munger, R.H.; Nexsen, W.E.; Simonen, T.C.; Slaughter, D.R.; Stallard, B.W.; Strand, O.T.

1980-04-28T23:59:59.000Z

12

Electrostatic Plasma-Confinement Experiments in a Tandem Mirror System  

Science Journals Connector (OSTI)

Results from the tandem mirror experiment are described. The configuration of axial density and potential profiles are created and sustained by neutral-beam injection and gas fueling. Plasma confinement in the center cell is shown to be improved by the end plugs by as much as a factor of 9. The electron temperature is higher than that achieved in our earlier 2XIIB single-cell mirror experiment.

F. H. Coensgen, C. A. Anderson, T. A. Casper, J. F. Clauser, W. C. Condit, D. L. Correll, W. F. Cummins, J. C. Davis, R. P. Drake, J. H. Foote, A. H. Futch, R. K. Goodman, D. P. Grubb, G. A. Hallock, R. S. Hornady, A. L. Hunt, B. G. Logan, R. H. Munger, W. E. Nexsen, T. C. Simonen, D. R. Slaughter, B. W. Stallard, and O. T. Strand

1980-04-28T23:59:59.000Z

13

Photo of the Week | Department of Energy  

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

Photo of the Week Photo of the Week Photo of the Week Addthis Inside the Tandem Mirror Experiment 1 of 28 Inside the Tandem Mirror Experiment This 1978 photo shows two workers inside the Mirror Fusion Test Facility, a magnetic confinement fusion device designed and built at Lawrence Livermore National Laboratory. In this experiment, magnetic mirrors are placed at both ends of a central magnetic tube. Very hot and dense plasmas inside each mirror enhanced the confinement of another plasma inside the central tube, where the bulk of the fusion would occur. Image: Lawrence Livermore National Laboratory Date taken: 2012-12-28 12:00 Rocky Flats Wildlife Refuge 2 of 28 Rocky Flats Wildlife Refuge The Rocky Flats Plant was first established in 1951 as a nuclear weapons manufacturing facility. Today, almost 4,000 acres make up the Rocky Flats

14

Summary of results from the Tandem Mirror Experiment (TMX)  

SciTech Connect (OSTI)

This report summarizes results from the successful experimental operation of the Tandem Mirror Experiment (TMX) over the period October 1978 through September 1980. The experimental program, summarized by the DOE milestones given in Table 1-1, had three basic phases: (1) an 8-month checkout period, October 1978 through May 1979; (2) a 6-month initial period of operation, June through November 1979, during which the basic principles of the tandem configuration were demonstrated (i.e., plasma confinement was improved over that of a single-cell mirror); and (3) a 10-month period, December 1979 through September 1980, during which the initial TMX results were corroborated by additional diagnostic measurements and many detailed physics investigations were carried out. This report summarizes the early results, presents results of recent data analysis, and outlines areas of ongoing research and data analysis which will be reported in future journal publications.

Simonen, T.C. (ed.)

1981-02-26T23:59:59.000Z

15

Photo  

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

17, 1998 17, 1998 Number 8 Photo by Reidar Hahn Peoples Makes Fermilab's Case at Annual DOE Review Director shares struggle to balance present commitments and high-energy future. By Mike Perricone, Office of Public Affairs Fermilab Director John Peoples told a panel of DOE reviewers and outside experts that preparations for Collider Run II at the Tevatron were consuming most of the Laboratory's resources, leaving little room for work on anything else, including the future of the field. "We face a difficult choice between superb science now and having a lab with a future," he said. The wood-paneled room was still, with overhead slides contrasting budget figures with f INSIDE 3 Annual Review 5 Muon Collider 6 Fermilab's Drivers 8 CP Violation 13 Essay Contest 14 Peña Legacy

16

Construction and operational experience of the Tandem Mirror Experiment-Upgrade (TMX-U)  

SciTech Connect (OSTI)

The Tandem Mirror Experiment-Upgrade (TMX-U) incorporates two new features at Lawrence Livermore National Laboratory (LLNL) tandem mirror program, thermal barriers in the end plugs and injection of the neutral beams at several oblique angles. The thermal barriers isolate the electrons in the end plugs from those in the central cell, making it possible to heat them independently with microwaves. In addition, this innovation produces a large potential gradient in the end plugs with lower magnetic fields and lower neutral-beam energies than would be possible in a conventional tandem mirror device. The TMX-U is also designed to test neutral-beam-injection angles as an experimental parameter. We use angles other than 90/sup 0/ to produce a plasma with improved microstability.

Chargin, A.K.; Calderon, M.O.; Moore, T.L.

1983-07-01T23:59:59.000Z

17

Plasma confinement experiments in the TMX tandem mirror. Paper IAEA-CN-38/F-1  

SciTech Connect (OSTI)

Results from the new Tandem Mirror Experiment (TMX) are described. Tandem-mirror density and potential profiles are produced using end-plug neutral-beam injection and central-cell gas-fueling. TMX parameters are near those predicted theoretically. The end-plug electron temperature is higher than in the comparably sized single-mirror 2XIIB. Axial confinement of the finite-beta central-cell plasma is improved by the end plugs by as much as a factor of 9. In TMX, end-plug microinstability limits central-cell confinement in agreement with theory.

Simonen, T.C.; Anderson, C.A.; Casper, T.A.

1980-05-22T23:59:59.000Z

18

Status of the Tandem Mirror Experiment-Upgrade (TMX-U) diagnostic system  

SciTech Connect (OSTI)

This paper presents the current status of the Tandem Mirror Experiment-Upgrade (TMX-U) diagnostics system. For the initial instruments active on TMX-U, the expansions or upgrades that have been implemented are outlined. For the newly added systems, more implementation details are presented.

Coutts, G.W.; Coffield, F.E.; Hornady, R.S.

1983-11-26T23:59:59.000Z

19

Energy confinement studies in the tandem mirror experiment (TMX): Power balance  

Science Journals Connector (OSTI)

The power balance in the Tandem Mirror Experiment (TMX) is studied for several days of operation. Between them these days typified the operating range of TMX. Examining the power balance on axis it is found that 60% to 100% of the power is carried to the end walls by escaping central?cell ions. Globally these calculations account for 70% to 100% of the input power on each of the days studied. Based upon the power balance the energy confinement times of the particle species are calculated. The end?cell ion energy confinement time is similar to that achieved in the 2XIIB single?cell magnetic mirror experiment whereas the electron energy confinement in TMX was 10 to 100 times better. The central?cell ion energy confinement in the central flux tube was determined by axial particle loss. At the central?cell plasma?edge radial particle transport and charge exchange with the fueling gas are important processes.

D. P. Grubb; S. L. Allen; T. A. Casper; J. F. Clauser; F. H. Coensgen; D. L. Correll; W. C. Cummins; J. C. Davis; D. Dietrich; R. P. Drake; J. H. Foote; R. J. Fortner; A. H. Futch; R. K. Goodman; G. E. Gryczkowski; E. B. Hooper Jr.; R. S. Hornady; A. L. Hunt; C. V. Karmendy; T. Nash; W. E. Nexsen; W. L. Pickles; G. D. Porter; P. Poulsen; T. C. Simonen; D. R. Slaughter; G. A. Hallock; O. T. Strand

1983-01-01T23:59:59.000Z

20

TMX tandem-mirror experiments and thermal-barrier theoretical studies  

SciTech Connect (OSTI)

This paper describes recent analysis of energy confinement in the Tandem Mirror Experiment (TMX). TMX data also indicates that warm plasma limits the amplitude of the anisotropy driven Alfven ion cyclotron (AIC) mode. Theoretical calculations show strong AIC stabilization with off-normal beam injection as planned in TMX-U and MFTF-B. This paper reports results of theoretical analysis of hot electrons in thermal barriers including electron heating calculations by Monte Carlo and Fokker-Planck codes and analysis of hot electron MHD and microinstability. Initial results from the TMX-U experiment are presented which show the presence of sloshing ions.

Simonen, T.C.; Baldwin, D.E.; Allen, S.L.

1982-07-29T23:59:59.000Z

Note: This page contains sample records for the topic "mirror experiment photo" 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

Initial results of the Tandem Mirror Experiment (TMX) at the Lawrence Livermore Laboratory  

SciTech Connect (OSTI)

Initial experimental results from the Tandem Mirror Experiment (TMX) are presented. Axial profiles of the plasma density and potential necessary for electrostatically enhanced confinement of the central-cell ions have been generated and sustained for the duration of neutral-beam injection. The resulting central-cell ion confinement against axial loss is improved by a factor as large as 9 above that given by magnetic confinement alone. The plasma exhibits gross magnetohydrodynamic stability and microstability. Under some conditions, a residual level of ion cyclotron fluctuations in the end cells heats the central-cell ions and degrades their confinement.

Grubb, D.P.; Anderson, C.A.; Casper, T.A.; Clauser, J.F.; Coensgen, F.H.; Correll, D.L.; Cummins, W.F.; Davis, J.C.; Drake, R.P.; Foote, J.H.

1980-04-02T23:59:59.000Z

22

Summary of mirror experiments relevant to beam-plasma neutron source  

SciTech Connect (OSTI)

A promising design for a deuterium-tritium (DT) neutron source is based on the injection of neutral beams into a dense, warm plasma column. Its purpose is to test materials for possible use in fusion reactors. A series of designs have evolved, from a 4-T version to an 8-T version. Intense fluxes of 5--10 MW/m/sup 2/ is achieved at the plasma surface, sufficient to complete end-of-life tests in one to two years. In this report, we review data from earlier mirror experiments that are relevant to such neutron sources. Most of these data are from 2XIIB, which was the only facility to ever inject 5 MW of neutral beams into a single mirror call. The major physics issues for a beam-plasma neutron source are magnetohydrodynamic (MHD) equilibrium and stability, microstability, startup, cold-ion fueling of the midplane to allow two-component reactions, and operation in the Spitzer conduction regime, where the power is removed to the ends by an axial gradient in the electron temperature T/sub e/. We show in this report that the conditions required for a neutron source have now been demonstrated in experiments. 20 refs., 15 figs., 3 tabs.

Molvik, A.W.

1988-10-18T23:59:59.000Z

23

Search for neutron - mirror neutron oscillations in a laboratory experiment with ultracold neutrons  

E-Print Network [OSTI]

Mirror matter is considered as a candidate for dark matter. In connection with this an experimental search for neutron - mirror neutron (nn') transitions has been carried out using storage of ultracold neutrons in a trap with different magnetic fields. As a result, a new limit for the neutron - mirror neutron oscillation time has been obtained, tau_osc >= 448 s (90% C.L.), assuming that there is no mirror magnetic field larger than 100 nT. Besides a first attempt to obtain some restriction for mirror magnetic field has been done.

A. P. Serebrov; E. B. Aleksandrov; N. A. Dovator; S. P. Dmitriev; A. K. Fomin; P. Geltenbort; A. G. Kharitonov; I. A. Krasnoschekova; M. S. Lasakov; A. N. Murashkin; G. E. Shmelev; V. E. Varlamov; A. V. Vassiljev; O. M. Zherebtsov; O. Zimmer

2008-09-29T23:59:59.000Z

24

Radial transport in the central cell of the tandem mirror experiment  

Science Journals Connector (OSTI)

An experimental study of radial transport in the Tandem Mirror Experiment is reported here. Plasma parameters were measured in a series of well?diagnosed plasma discharges. A negative electric current (8040 A within a 30?cm radius) flowed to the end wall implying an equal radial loss of plasma ions. The axial losses of plasma ions were 100 A from the same volume. The nonambipolar radial ion flux was of the same order as the flux resulting from resonant?neoclassical and ion?neutral transport but the uncertainties are large. The ambipolar radial transport (of both ions and electrons) was investigated by comparing the observed end losses with calculations of the plasma fueling by gas penetration and neutral beams. The ambipolar radial losses are probably smaller than the loses through other processes and may be as small as the classical losses resulting from Coulomb collisions.

R. P. Drake; E. B. Hooper Jr.; C. V. Karmendy; S. L. Allen; T. A. Casper; J. F. Clauser; F. H. Coensgen; R. H. Cohen; D. L. Correll; J. C. Davis; J. H. Foote; A. H. Futch; R. K. Goodman; D. P. Grubb; G. E. Gryczkowski; G. A. Hallock; A. L. Hunt; W. E. Nexsen; W. L. Pickles; A. E. Pontau; P. Poulsen; T. C. Simonen; O. T. Strand; W. R. Wampler

1982-01-01T23:59:59.000Z

25

Energy confinement studies in the tandem mirror experiment (TMX): Power flow  

Science Journals Connector (OSTI)

Using the measured plasma densities and energies the flow of power between the different particle species and regions of the tandem mirror experiment (TMX) is analyzed. The power flow is described by a simple classical model modified to include: (1) a halo of cool plasma that reduces end?cell ion losses due to charge exchange on background gas (2) instability heating of the central?cell ions both in the central cell and as they escape through the plugs (3) electron energy transport along the field lines which is less than predicted and (4) radial transport of the central?cell ions. Our global power balance including all particles and regions accounts for 8727% of the trapped neutral?beam power.

D. P. Grubb; S. L. Allen; T. A. Casper; J. F. Clauser; F. H. Coensgen; R. H. Cohen; D. L. Correll; W. C. Cummins; J. C. Davis; R. P. Drake; J. H. Foote; A. H. Futch; R. K. Goodman; G. E. Gryczkowski; E. B. Hooper Jr.; R. S. Hornady; A. L. Hunt; C. V. Karmendy; W. E. Nexsen; W. L. Pickles; G. D. Porter; P. Poulsen; T. D. Rognlien; T. C. Simonen; D. R. Slaughter; P. Coakley; G. A. Hallock; O. T. Strand

1983-01-01T23:59:59.000Z

26

Summary of Thomson-scattering data from the Tandem Mirror Experiment (TMX)  

SciTech Connect (OSTI)

We provide a synthesis of our Thomson-scattering measurements of electron temperature (T/sub e/) and density (n/sub e/) for the Tandem Mirror Experiment (TMX). TMX operated in two modes - high and low T/sub e/. When performing in the high T/sub e/ mode (in general > 100 eV), heating the central-cell ions with neutral beams raised T/sub e/ in the end plug. We achieved a maximum T/sub e/ of 260 eV in the east end plug. Specifically, our experiments demonstrated that in the end plug, the radial T/sub e/ profiles were flat to r = 5 cm; the ratio of potential (phi/sub p/) to T/sub e/ ranged between four and six. In addition, we found that although T/sub e/ in the central cell was generally comparable to that in the plug, it was often not constant along a magnetic field line. Under some conditions a non-Maxwellian electron distribution may have been present.

Goodman, R.K.

1982-01-11T23:59:59.000Z

27

Study of impurities in the Tandem Mirror Experiment using extreme-ultraviolet spectroscopy  

SciTech Connect (OSTI)

Impurities in the Tandem Mirror Experiment (TMX) have been studied using extreme ultraviolet spectroscopy. Three time-resolving absolutely-calibrated normal-incidence monochromators, one on each section of TMX, were used to study the impurity emissions in the wavelength range of 300 A to 1600 A. The instruments on the east end cell and central cell were each capable of obtaining spatially-resolved profiles from 22 chords of the plasma simultaneously while the instrument on the west end cell monitored the central chord. The impurities identified in TMX were carbon, nitrogen, oxygen, and titanium. Emphasis was placed upon determining the impurity densities and radiated power losses of the central cell; results indicate that the impurity concentrations were low - less than 0.4% for each species - and that less than 10% of the total net trapped neutral beam power was lost to radiation. The use of titanium gettering on the central cell walls was observed to decrease the brightnesses of singly- and doubly-ionized carbon and oxygen in the central cell plasma. In the end cells, oxygen was the main impurity with a concentration of about 1.5% and was injected by the neutral beams; the other impurities had concentrations of about 0.5%. Radiation losses from the end cells were negligible.

Strand, O.T.

1982-05-12T23:59:59.000Z

28

Measurements of radial profiles of ion cyclotron resonance heating on the Tandem Mirror Experiment-Upgrade  

SciTech Connect (OSTI)

A small Radial Energy Analyzer (REA) was used on the Tandem Mirror Experiment-Upgrade (TMX-U), at Lawerence Livermore National Laboratory, to investigate the radial profiles of ion temperature, density, and plasma potential during Ion Cyclotron Resonance Heating (ICRH). The probe has been inserted into the central-cell plasma at temperatures of 200 eV and densities of 3 x 10/sup 12/cm/sup /minus 3// without damage to the probe, or major degradation of the plasma. This analyzer has indicated an increase in ion temperature from near 20 eV before ICRH to near 150 eV during ICRH, with about 60 kW of broadcast power. The REA measurements were cross-checked against other diagnostics on TMX-U and found to be consistent. The ion density measurement was compared to the line-density measured by microwave interferometry and found to agree within 10 to 20%. A radial intergral of n/sub i/T/sub i/ as measured by the REA shows good agreement with the diamagnetic loop measurement of plasma energy. The radial density profile is observed to broaden during the RF heating pulses, without inducing additional radial losses in the core plasma. The radial profile of plasma is seen to vary from axially peaked, to nearly flat as the plasma conditions carried over the series of experiments. To relate the increase in ion temperature to power absorbed by the plasma, a power balance as a function of radius was performed. The RF power absorbed is set equal to the sum of the losses during ICRH, minus those without ICRH. This method accounts for more than 70% of the broadcast power using a simple power balance model. The measured radial profile of the RF heating was compared to the calculations of two codes, ANTENA and GARFIELD, to test their effectiveness as predictors of power absorption profiles for TMX-U. 62 refs., 63 figs., 7 tabs.

Falabella, S.

1988-05-11T23:59:59.000Z

29

Experimental results from TMX-U. [Tandem Mirror Experiment-Update  

SciTech Connect (OSTI)

This paper presents the recent results from the Tandem Mirror Experiment-Update(TMX-U). Many of these results can be divided into two major areas: (1) axial confinement and plasma potential, and (2) radial transport and total confinement (i.e., particle balance). Among the key observations to be discussed are the following: When the ion-confining potential theta/sub ic/ is small, theta/sub ic//T/sub i/ approx. 1 to 2, the axial confinement time scales as the theoretical Pastukhov time. Deep thermal barriers (theta/sub b/ approx. 0.7 kV, theta/sub b//T/sub e/ approx. 6 to 7) have been measured, but there is no strong correlation between ion-confining potential and the thermal-barrier depth. By installing a calibrated H/sub ..cap alpha../ emission diagnostic to measure the ionization current, we have quantified particle balance between the ionization source current and the four plasma current channels: (1) axial losses, (2) nonambipolar radial losses, (3) ambipolar radial losses, and (4) density changes. All current channels are directly measured except for the ambipolar current, which is inferred from the particle balance equation. TMX-U operation above 1 to 3 x 10/sup 12/ cm/sup -3/ is dominated by current channel (1) and below 1 x 10/sup 12/ cm/sup -3/ by one or more of the remaining three channels. Central-cell particle buildup has been observed for one or two e-foldings and, within the radial core, found consistent with particle balance.

Correll, D.L.

1987-08-01T23:59:59.000Z

30

Photo Upload Photo Selection Guide  

E-Print Network [OSTI]

Photo Upload Photo Selection Guide It is important that your photo is suitable for use on your College Card so please ensure that you follow this guidance when selecting a photo to upload. Technical Requirements Photo height: Between 400 and 1280 pixels Photo width: Between 300 and 960

Royal Holloway, University of London

31

Photo Gallery  

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

media Photo Gallery history History Historical photos of LLNL, the Nevada Test Site, early laser systems, and the construction of NIF Laser Laser Beampath NIF's Master Oscillator...

32

Chiral Dynamics in Photo-Pion Physics: Theory, Experiment, and Future Studies at the HI$?$S Facility  

E-Print Network [OSTI]

A review of photo-pion experiments on the nucleon in the near threshold region is presented. Comparisons of the results are made with the predictions of the low energy theorems of QCD calculated using chiral perturbation theory (ChPT) which is based on the spontaneous breaking of chiral symmetry as well as its explicit breaking due to the finite quark masses. As a result of the vanishing of the threshold amplitudes in the chiral limit, the experiments are difficult since the cross sections are small. Nevertheless the field has been brought to a mature stage of accuracy and sensitivity. The accomplishments and limitations of past experiments are discussed. Future planned experiments at Mainz and HI$\\gamma$S using polarization observables are discussed as a more rigorous test of theoretical calculations. Emphasis is given to the technical developments that are required for the HI$\\gamma$S facility. It is shown that future experiments will provide more accurate tests of ChPT and will be sensitive to isospin breaking dynamics due to the mass difference of the up and down quarks.

Aron M. Bernstein; Mohammad W. Ahmed; Sean Stave; Ying K. Wu; Henry R. Weller

2009-02-20T23:59:59.000Z

33

Photo Gallery  

E-Print Network [OSTI]

Photo Gallery. Pictures by Nicola Garofalo. Luis Caffarelli. Luis Caffarelli. Luis Caffarelli. Yanyan Li. Lei Zhang. Marianne Korten. Luigi Ambrosio. Luigi Ambrosio.

34

Photo Gallery - Hanford Site  

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

VPP Outreach Award photo.JPG Gallery: VPP Program Title: VPP Outreach Award photo VPP Outreach Award photo Name: VPP Outreach Award photo Keywords: Award, Outreach, VPP...

35

Photo Filler  

Science Journals Connector (OSTI)

Photo filler (July 3, 2008;359:42). The title of the photograph printed on page 42 should have been Hyacinth Macaw rather than Blue Toucan. We regret the error. Photo filler (July 3, 2008;359:42). The title of the photograph printed on page 42 should have been Hyacinth Macaw rather than Blue Toucan. We regret the error.

2008-08-28T23:59:59.000Z

36

Photo Galleries  

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

Photo Galleries Photo Galleries /_assets/images/sitename_image_placeholder.jpg Photo Galleries High-quality photos speak more than a thousand words about our science and technology, community outreach, collaborations, careers, and much more. Community» The Lab» Careers» Environment» Science & Technology» Collaborations» Events» For Visitors» SCIENCE & TECHNOLOGY IMAGES Click thumbnails to enlarge. Photos arranged by most recent first, horizontal formats before vertical. See Flickr for more sizes and details. Astronomical simulation in the CAVE - 1 Astronomical simulation in the CAVE - 1 Scientist sees his reflection as he works on the Cibola satellite Scientist sees his reflection as he works on the Cibola satellite "Sniffing" bees trained for security

37

Fokker-Planck equation in mirror research  

SciTech Connect (OSTI)

Open confinement systems based on the magnetic mirror principle depend on the maintenance of particle distributions that may deviate substantially from Maxwellian distributions. Mirror research has therefore from the beginning relied on theoretical predictions of non-equilibrium rate processes obtained from solutions to the Fokker-Planck equation. The F-P equation plays three roles: Design of experiments, creation of classical standards against which to compare experiment, and predictions concerning mirror based fusion power systems. Analytical and computational approaches to solving the F-P equation for mirror systems will be reviewed, together with results and examples that apply to specific mirror systems, such as the tandem mirror.

Post, R.F.

1983-08-11T23:59:59.000Z

38

Switchable Mirrors  

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

Switchable Mirrors Switchable Mirrors Speaker(s): Ronald Griessen Date: July 17, 2002 - 12:00pm Location: Bldg. 90 Seminar Host/Point of Contact: Thomas Richardson Switchable mirrors based on rare earth hydrides were discovered in my laboratory in 1994. PhD student J.N. Huiberts observed a reversible metal-to-insulator transition when a thin film (150 to 500 nm) of yttrium or lanthanum coated with a thin layer of palladium was exposed to hydrogen gas. The transition accompanies conversion of a metallic dihydride phase to a semiconducting trihydride. Since then, our group has carried out fundamental research that has elucidated many important aspects of switchable mirror phenomena. This talk will include demonstrations of the spectacular changes in optical properties in rare earth hydride films, and

39

Mirror mount  

DOE Patents [OSTI]

A mirror mount is provided that allows free pitch, yaw and roll motion of the mirror while keeping the location of a point on the surface of the mirror fixed in the rest frame of reference of the mount. Yaw movement is provided by two yaw cylinders that are bearing mounted to provide rotation. Pitch and roll motion is provided by a spherically annular shell that is air bearing mounted to move between a clamp and an upper pedestal bearing. The centers of curvature of the spherical surfaces of the shell lie upon the point. Pitch motion and roll motion are separately and independently imparted to mirror by a pair of pitch paddles and a pair of roll paddles that are independently and separately moved by control rods driven by motors.

Humpal, H.H.

1986-03-21T23:59:59.000Z

40

Mirror mount  

DOE Patents [OSTI]

A mirror mount (10) is provided that allows free pitch, yaw and roll motion of the mirror (28) while keeping the location of a point (56) on the surface of the mirror (28) fixed in the rest frame of reference of the mount (10). Yaw movement is provided by two yaw cylinders (30,32) that are bearing (52) mounted to provide rotation. Pitch and roll motion is provided by a spherically annular shell (42) that is air bearing (72,74) mounted to move between a clamp (60) and an upper pedestal bearing (44). The centers of curvature of the spherical surfaces of the shell (42) lie upon the point (56). Pitch motion and roll motion are separately and independently imparted to mirror (28) by a pair of pitch paddles (34) and a pair of roll paddles (36) that are independently and separately moved by control rods (76,80) driven by motors (78,82).

Humpal, Harold H. (San Ramon, CA)

1987-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "mirror experiment photo" 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

Mirror mount  

DOE Patents [OSTI]

A mirror mount is provided that allows free pitch, yaw and roll motion of the mirror while keeping the location of a point on the surface of the mirror fixed in the rest frame of reference of the mount. Yaw movement is provided by two yaw cylinders that are bearing mounted to provide rotation. Pitch and roll motion is provided by a spherically annular shell that is air bearing mounted to move between a clamp and an upper pedestal bearing. The centers of curvature of the spherical surfaces of the shell lie upon the point. Pitch motion and roll motion are separately and independently imparted to mirror by a pair of pitch paddles and a pair of roll paddles that are independently and separately moved by control rods driven by motors. 5 figs.

Humpal, H.H.

1987-11-10T23:59:59.000Z

42

Photo filler  

Science Journals Connector (OSTI)

Photo filler (August 8, 2002;347:400). The photograph printed on page 400 should have been credited to Robert B. Cubberley, M.D. rather than Glenn Zachow, M.D. We regret the error. Photo filler (August 8, 2002;347:400). The photograph printed on page 400 should have been credited to Robert B. Cubberley, M.D., rather than Glenn Zachow, M.D. We regret the error.

2002-09-26T23:59:59.000Z

43

Photo Gallery - Hanford Site  

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

Photo Gallery Newsroom Photo Gallery Email Email Page | Print Print Page |Text Increase Font Size Decrease Font Size Welcome The Department of Energy's Photo Gallery consists of...

44

Effects of end cell ion cyclotron fluctuations on central-cell ion confinement in the tandem mirror experiment (TMX)  

SciTech Connect (OSTI)

The tandem mirror device (TMX) exhibits gross stability to both MHD and microinstability modes. The end-cell plasmas provide the tandem with average minimum-B stability, while the efflux of plasma from the central cell maintains the end cells (plugs) at marginal stability to loss cone modes. For some operating conditions, a residual level of plug ion cyclotron fluctuations is detected. These oscillations dominate the fluctuation frequency spectra in both the plugs and the central cell. The presence of plug ion cyclotron fluctuations in the central cell leads to resonance heating of some of the central cell ions. This heating degrades the confinement of the central cell ions; thereby increasing the amount of warm plasma stream flowing through the plugs.

Grubb, D.P.; Casper, T.A.; Clauser, J.F.

1980-04-07T23:59:59.000Z

45

Evolution of the mirror machine  

SciTech Connect (OSTI)

The history of the magnetic-mirror approach to a fusion reactor is primarily the history of our understanding and control of several crucial physics issues, coupled with progress in the technology of heating and confining a reacting plasma. The basic requirement of an MHD-stable plasma equilibrium was achieved following the early introduction of minimum-B multipolar magnetic fields. In refined form, the same magnetic-well principle carries over to our present experiments and to reactor designs. The higher frequency microinstabilities, arising from the non-Maxwellian particle distributions inherent in mirror machines, have gradually come under control as theoretical prescriptions for distribution functions have been applied in the experiments. Even with stability, the classical plasma leakage through the mirrors posed a serious question for reactor viability until the principle of electrostatic axial stoppering was applied in the tandem mirror configuration. Experiments to test this principle successfully demonstrated the substantial improvement in confinement predicted. Concurrent with advances in mirror plasma physics, development of both high-power neutral beam injectors and high-speed vacuum pumping techniques has played a crucial role in ongoing experiments. Together with superconducting magnets, cryogenic pumping, and high-power radiofrequency heating, these technologies have evolved to a level that extrapolates readily to meet the requirements of a tandem mirror fusion reactor.

Damm, C. C.

1983-08-18T23:59:59.000Z

46

Photo Khipu: Organizing a Public Record of Social Transaction  

E-Print Network [OSTI]

Photo Khipu: Organizing a Public Record of Social Transaction Abstract Traditional photo albums are important not only for storing and organizing photographs but also for their ability to display photos in an aesthetically pleasing manner. A beautiful photo album augments the browsing experience for individual

Karahalios, Karrie G.

47

Fireplace photo | Department of Energy  

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

photo Fireplace photo Photo of a fireplace. Fireplace photo More Documents & Publications .Hearth, Patio & Barbecue Association's Comments on DOE's Regulatory Burden RFI Department...

48

Photo-Targeted Nanoparticles  

Science Journals Connector (OSTI)

Photo-Targeted Nanoparticles ... The photo-dependent inhibition could be eliminated by prior addn. of glutathione or bisulfite to the irradiated soln. ... Photo-mediated gene activation using caged RNA/DNA in zebrafish embryos ...

Tal Dvir; Matthew R. Banghart; Brian P. Timko; Robert Langer; Daniel S. Kohane

2009-11-11T23:59:59.000Z

49

ALS Staff Photo  

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

Staff Photo Print On May 14, 2013, members of ALS staff posed for a group photo in front of the dome. A hi-res version can be downloaded here. The last staff photo was taken in...

50

Photo Gallery - Hanford Site  

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

Before Cocooning N Reactor Before Cocooning U Canyon Aerial U Canyon Aerial Aerial Photo of 200 West Groundwater Treatment Facility Aerial Photo of 200 West Groundwater...

51

Photo Gallery - Hanford Site  

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

Newsroom > Photo Gallery Newsroom Photo Gallery Email Email Page | Print Print Page |Text Increase Font Size Decrease Font Size Pretreatment Facility The Pretreatment Facility is...

52

Photo Gallery - Hanford Site  

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

Safe Safety Slips Star Status Together Trips VPP > VPP Program VPP Outreach Award photo VPP Outreach Award photo VPP Committee VPP Committee VPP Celebration VPP Celebration...

53

Photo Gallery - Hanford Site  

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

Groundwater Facility 100-HX Groundwater Facility 100-HX Groundwater Facility Aerial Photo of 200 West Groundwater Treatment Facility Aerial Photo of 200 West Groundwater...

54

Photo Gallery - Hanford Site  

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

200 west aerial arra drilling groundwater hanford treatment well > Well Drilling Aerial Photo of 200 West Groundwater Treatment Facility Aerial Photo of 200 West Groundwater...

55

Photo Gallery - Hanford Site  

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

Visits Hanford Senator Murray Visits Hanford Senator Murray Visits Hanford Aerial Photo of 200 West Groundwater Treatment Facility Aerial Photo of 200 West Groundwater...

56

Photo Gallery - Hanford Site  

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

Readies for Operation New Groundwater Treatment Facility Readies for Operation Aerial Photo of 200 West Groundwater Treatment Facility Aerial Photo of 200 West Groundwater...

57

MICROPOSIT PHOTO RESISTS  

E-Print Network [OSTI]

MICROPOSIT® S1800® SERIES PHOTO RESISTS MICROPOSIT S1800 SERIES PHOTO RESISTS are positive and maintain linewidth control when process- ing on highly reflective substrates. MICROPOSIT S1800 SERIES PHOTO Photoresist: MICROPOSIT ® S1813 ® PHOTO RESIST Coat: 12,300? Softbake: 115°C/60 sec. Hotplate Exposure: Nikon

Kaiser, Todd J.

58

RMOTC - About Us - Photo Gallery  

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

Photo Gallery We invite you to view RMOTC's Photo Gallery as a slideshow here or in the player below View all of RMOTC's photos on Flickr here...

59

Photo Gallery - Hanford Site  

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

VPP VPP Outreach Award photo VPP Outreach Award photo VPP Committee VPP Committee The Five Tenets of VPP The Five Tenets of VPP VPP Coin VPP Coin VPP EMS ISMS LOGO VPP EMS ISMS...

60

Photo Uncrop , Brian Curless  

E-Print Network [OSTI]

Photo Uncrop Qi Shan , Brian Curless , Yasutaka Furukawa , Carlos Hernandez , and Steven M. Seitz of extending the field of view of a photo-- an operation we call uncrop. Given a reference photograph Random Field based approach is capable of handling large Internet photo collections with arbitrary

Anderson, Richard

Note: This page contains sample records for the topic "mirror experiment photo" 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.


61

First Place Photos 2013 Graduate Student Photo Contest  

E-Print Network [OSTI]

First Place Photos 2013 Graduate Student Photo Contest: Guidelines and Submission Information Grad of the prizes, submissions must include: Photo(s) submitted for consideration on a CD. A printed document listing the names of any individuals, places, etc. included in the photo(s) and a brief description

Thomas, Andrew

62

Electrons and Mirror Symmetry  

SciTech Connect (OSTI)

The neutral weak force between an electron and a target particle, mediated by the Z boson, can be isolated by measuring the fractional change under a mirror reflection of the scattering probability of relativistic longitudinally polarized electrons off unpolarized targets. This technique yields neutral weak force measurements at a length scale of 1 femtometer, in contrast to high energy collider measurements that probe much smaller length scales. Study of the variation of the weak force over a range of length scales provides a stringent test of theory, complementing collider measurements. We describe a recent measurement of the neutral weak force between two electrons by the E158 experiment at the Stanford Linear Accelerator Center. While the weak force between an electron and positron has been extensively studied, that between two electrons had never directly been measured. We conclude by discussing prospects for even more precise measurements at future facilities.

Kumar, Krishna (University of Massachusetts, Amherst) [University of Massachusetts, Amherst

2007-04-04T23:59:59.000Z

63

Mirror Technology Roadmap  

Science Journals Connector (OSTI)

NASAs Mirror Technology Roadmap identifies specific capabilities requiring significant advances in optical fabrication and testing to enable the next generation of...

Stahl, H Philip

64

The Photo News Flusher: A Photo-News Clustering Browser  

E-Print Network [OSTI]

The Photo News Flusher: A Photo-News Clustering Browser Tatsuya Iyota and Keiji Yanai Department photo news articles based on both textual features of articles and image features of news photos for a personal news database which is built by accumulating Web photo news articles. The system provides two

Yanai, Keiji

65

Photo Gallery - Hanford Site  

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

than 250 groundwater wells to support new treatment and monitoring systems. In this photo, workers from the subcontractor Water Development complete a well at the 200-ZP-1...

66

Photo Gallery - Hanford Site  

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

CHPRC-0900540.2Attachment1Photo9200-ZP-1installingwellcasing.jpg Gallery: American Recovery and Reinvestment Act Title: Soil & Groundwater Remediation Soil & Groundwater...

67

Photo Gallery - Hanford Site  

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

than 250 groundwater wells to support new treatment and monitoring systems. In this photo, Workers from CH2M HILL Plateau Remediation Company subcontractor StillwaterCarpenter...

68

Photo Gallery - Hanford Site  

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

resin, columbia river Official Building Numbers: 100-HX Area: 100-H Description: This photo shows a large tank and piping inside the 100-HX groundwater treatment facility. The...

69

Photo Gallery - Hanford Site  

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

200 west, pump and treat, groundwater, treatment, facility Area: 200 West Description: Aerial photo of the 200 West Groundwater Treatment Facility under consruction (August 2010)...

70

Photo Gallery - Hanford Site  

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

HMS, downburst, 222-S, rain, Clouds Description: South towards Rattlesnake Mountain (Photo by John Smith). This picture was taken from 222-S looking South towards Rattlesnake...

71

Photo Gallery - Hanford Site  

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

7312010Photo7DXextractionwell7-30-10.jpg Gallery: 100DX Groundwater Treatment Facility Title: Building an Extraction Well Building an Extraction Well Name: Building an...

72

Photo Gallery - Hanford Site  

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

Treatment Facility Area: 200 West Description: Interior view of translucent panels (top of photo) that reduce costs and conserve energy by reducing the need for interior lighting...

73

Photo Gallery - Hanford Site  

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

pump and treat, groundwater, treatment, facility Area: 200 West Description: Aerial photo of the 200 West Groundwater Treatment Facility under consruction (March 2011),...

74

Photo Gallery - Hanford Site  

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

workers are protected and contaminated materials are contained during cleanup. In this photo, extensive document searches and reviews coordinated by Linda Montgomery (left) and...

75

Photo Gallery - Hanford Site  

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

carried more material per truckload than previous methods. This increased the safety margin by reducing worker handling. This photo shows the last super dump truck being loaded...

76

Photo Gallery - Hanford Site  

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

resin, columbia river Official Building Numbers: 100-HX Area: 100-H Description: This photo shows tanks filled with an ion exchange resin inside the 100-HX groundwater treatment...

77

Photo Gallery - Hanford Site  

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

soil generated by ARRA-funded cleanup projects across the Hanford Site. In this photo, additional containers needed to haul waste are delivered by Rule Steel to the...

78

Photo Gallery - Hanford Site  

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

Toothman (obscured), Michele Gerber (obscured), Lynn Scarlett, and Dave Brockman, pose for a photo at the B Reactor face with the National Historic Landmark designation plaque...

79

Photo Gallery - Hanford Site  

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

Settlers This historic collection features approximately 200 local area images circa 1894 - 1945. Photos depict the life and times of the early settlers of the White Bluffs area...

80

Photo Gallery - Hanford Site  

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

CHPRC-0900540.2 Attachment1Photo15BCCAdumptrucktraining 1.jpg Gallery: American Recovery and Reinvestment Act Title: BC Control Area Remediation BC Control Area Remediation...

Note: This page contains sample records for the topic "mirror experiment photo" 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

Photo Gallery - Hanford Site  

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

5282010Photo8DXtransferbldginterior.jpg Gallery: 100DX Groundwater Treatment Facility Title: Interior of Treatment Facility Interior of Treatment Facility Name: Interior of...

82

Photo Gallery - Hanford Site  

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

Using Recovery Act funding, contractors are cleaning up dozens of waste sites. In this photo, a Bell 412 helicopter outfitted with radiation detection equipment flies over a large...

83

Photo Gallery - Hanford Site  

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

CHPRC-0900540.2Attachment1Photo3Box29shipment.jpg Gallery: American Recovery and Reinvestment Act Title: Trench Removal Activities Trench Removal Activities Name: Trench...

84

Photo Gallery - Hanford Site  

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

Keywords: 200 west, pump and treat, groundwater, treatment, facility Area: 200 West Description: This photo shows the 200 West Groundwater Treatment Facility under construction...

85

Photo Gallery - Hanford Site  

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

18-10Photo.jpg Gallery: American Recovery and Reinvestment Act Title: Subcontract for characterization work issued Subcontract for characterization work issued Name: Subcontract...

86

Photo Gallery - Hanford Site  

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

1Photo1EDFWasteDisposal.jpg Gallery: ERDF Reaches 14 million Title: Keywords: ERDF, landfill, disposal Description: Workers uses bulldozers and sheepsfoot compactors to spread...

87

Photo-Electric Cells  

Science Journals Connector (OSTI)

... T. for the grounds of his most serious criticism of our volume on Photo-electric Cells reviewed in NATURE of July 19, p. 90. He says that ... reviewed in NATURE of July 19, p. 90. He says that the theory that photo-electrons are the free electrons of the metal is not one which is generally ...

NORMAN R. CAMPBELL; DOROTHY RITCHIE

1930-08-30T23:59:59.000Z

88

Photo-Electric Cells  

Science Journals Connector (OSTI)

... be measured, and its variation studied with variation of the incident light. Again, the photo-electric current may be amplified by valve circuits used outside the cell, or may ... to the infra-red, in which the active substance is oxidised thallium sulphide), barium photo-electric cells, sodium, and selenium cells.

ALLAN FERGUSON

1930-06-21T23:59:59.000Z

89

ESnet IPv6 Mirror Servers  

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

Mirror Servers Engineering Services The Network OSCARS Fasterdata IPv6 Network IPv6 Implementation Checklist ESnet IPv6 Mirror Servers ESnet IPv6 History ESnet supports Sandia and...

90

VPP Photo Gallery - Hanford Site  

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

Hanford Site Voluntary Protection Program > VPP Communications > VPP Photo Gallery Hanford Site Voluntary Protection Program Photo Gallery Email Email Page | Print Print Page |Text...

91

Nanolaminate deformable mirrors  

DOE Patents [OSTI]

A deformable mirror formed out of two layers of a nanolaminate foil attached to a stiff substrate is introduced. Deformation is provided by an electrostatic force between two of the layers. The internal stiffness of the structure allows for high-spatial-frequency shapes. The nanolaminate foil of the present invention allows for a high-quality mirror surface. The device achieves high precision in the vertical direction by using foils with accurately controlled thicknesses, but does not require high precision in the lateral dimensions, allowing such mirrors to be fabricated using crude lithography techniques. Such techniques allow structures up to about the meter scale to be fabricated.

Papavasiliou, Alexandros P. (Oakland, CA); Olivier, Scot S. (Santa Cruz, CA)

2009-04-14T23:59:59.000Z

92

Mirror Advanced Reactor Study (MARS) final report summary  

SciTech Connect (OSTI)

The Mirror Advanced Reactor Study (MARS) has resulted in an overview of a first-generation tandem mirror reactor. The central cell fusion plasma is self-sustained by alpha heating (ignition), while electron-cyclotron resonance heating and negative ion beams maintain the electrostatic confining potentials in the end plugs. Plug injection power is reduced by the use of high-field choke coils and thermal barriers, concepts to be tested in the Tandem Mirror Experiment-Upgrade (TMX-U) and Mirror Fusion Test Facility (MFTF-B) at Lawrence Livermore National Laboratory.

Henning, C.D.; Logan, B.G.; Carlson, G.A.; Perkins, L.J.; Werner, R.W.; Gordon, J.D.; Parmer, J.F.; Bilton, J.R.; Glancy, J.E.; Kulcinski, G.L.

1983-12-08T23:59:59.000Z

93

Photo Gallery - Hanford Site  

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

that once supported two nuclear reactors in the 100 K Area of the Hanford Site. In this photo, a worker directs the crane operator lifting the roof panel off of the 117KE Exhaust...

94

Photo Gallery - Hanford Site  

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

Reactor was the first reactor built on the Hanford Site, and was also the first full-scale reactor in the world. It took about one year to build B Reactor. This photo is from 1944...

95

Photo Gallery - Hanford Site  

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

industrial Official Building Numbers: 284 West Area: 200 West Description: In this photo, a support is cut to allow a boiler to fall. Contractor CH2M HILL Plateau Remediation...

96

Photo Gallery - Hanford Site  

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

adding new roads to access the facility's disposal cells and scales to weigh incoming trucks loaded with waste. In this photo, installation of a new scale at ERDF nears completion...

97

Photo Gallery - Hanford Site  

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

Using Recovery Act funding, contractors are cleaning up dozens of waste sites. In this photo from October 2009, workers continue to excavate soil from the 100-UPR-K-1 waste site,...

98

Photo Gallery - Hanford Site  

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

soil generated by ARRA-funded cleanup projects across the Hanford Site. In this photo, lights are installed for a new access road to ERDF and striping of the roadway was...

99

Photo Gallery - Hanford Site  

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

more than 250 wells to support groundwater treatment and monitoring systems. In this photo, workers prepare to begin drilling operations for wells at the 100-NR-2 operable unit....

100

Photo Gallery - Hanford Site  

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

World War II Official Building Numbers: B Reactor Area: 100BC Description: In this photo from World War II, B Reactor can be seen between the water towers on the right side of...

Note: This page contains sample records for the topic "mirror experiment photo" 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

Photo Gallery - Hanford Site  

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

that once supported two nuclear reactors in the 100 K Area of the Hanford Site. In this photo, a crane lifts the roof panel from the 117KE Exhaust Air Filter Building, with the K...

102

Photo Gallery - Hanford Site  

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

2012 Keywords: N Reactor, cocooning, aerial Area: 100N Description: This is an aerial photo of the N Reactor complex just before work to place the reactor in interim safe...

103

Photo Gallery - Hanford Site  

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

the soil beneath the former location of the K East Basin in the 100K Area. In this photo from late September, the first bucket of soil from the waste site known as UPR-100-K-1...

104

Photo Gallery - Hanford Site  

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

reinforced boxes. The waste was retrievably stored in the 1970s and 1980s. In this photo, Teamsters are carefully removing soil from Boxes 5 and 8 by hand in Burial Ground...

105

Photo Gallery - Hanford Site  

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

truck, trucks, waste site, BC, BC Control Area Area: BC Control Area Description: This photo shows the BC Control Area of the Hanford Site before remediation began. The area is...

106

Photo Gallery - Hanford Site  

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

reinforced boxes. The waste was retrievably stored in the 1970s and 1980s. In this photo, a forklift transfers a corroded metal box that is on a platform and wrapped in...

107

Photo Gallery - Hanford Site  

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

2005 Keywords: N Reactor, cocooning, aerial Area: 100N Description: This is an aerial photo of the N Reactor complex in 2005, before the reactor was placed in interim safe...

108

Photo Gallery - Hanford Site  

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

boiler, industrial Official Building Numbers: 284 West Area: 200 West Description: This photo shows boilers that were part of a coal-burning power house, just before they were...

109

Photo Gallery - Hanford Site  

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

industrial Official Building Numbers: 284 West Area: 200 West Description: In this photo, high-reach units hold a boiler so it won't fall backwards while supports are cut on...

110

Photo Gallery - Hanford Site  

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

of the K East Basin in the 100K Area, known as the UPR-100-K-1 Waste Site. In this photo, an excavator prepares materials for load out. The track hoe will mix the material...

111

Photo Gallery - Hanford Site  

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

industrial Official Building Numbers: 284 West Area: 200 West Description: In this photo, support beams from a boiler have been cut and removed, and high-reach units will push...

112

Photo Gallery - Hanford Site  

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

site H Reactor Hanford High School Hanford Site Historic Historical Building Historical Photo IC ISS Long-Term Stewardship LTS metal debris military Mt. Rainier N Reactor N-Area...

113

Photo Gallery - Hanford Site  

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

that once supported two nuclear reactors in the 100 K Area of the Hanford Site. In this photo, workers guide a roof panel as it is lifted from an exhaust air filter building. The...

114

Photo Gallery - Hanford Site  

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

are removing an estimated 180,000 tons of shallow soil contamination. In this photo, an excavator moves soil in a load-out trench near the BC Control Area. The soil will...

115

Photo Gallery - Hanford Site  

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

Environmental Restoration Disposal Facility, workers will be excavating about 1.7 million cubic yards of soil. In this photo, excavation workers are making progress on super cell 9...

116

Photo Gallery - Hanford Site  

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

boiler, industrial Official Building Numbers: 284 West Area: 200 West Description: This photo shows a boiler after it has been knocked over by heavy equipment. The debris will be...

117

Photo Gallery - Hanford Site  

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

industrial Official Building Numbers: 284 West Area: 200 West Description: In this photo, a unit is about to cut a support beam, while a high-reach unit in the background...

118

Photo Gallery - Hanford Site  

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

more than 250 wells to support groundwater treatment and monitoring systems. In this photo, workers begin drilling operations at the 100-NR-2 Operable Unit, where 171 new wells...

119

Skukuza-MISR Photos  

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

Skukuza-MISR Validation Site Photos Skukuza-MISR Validation Site Photos The photos on this site have been generously provided by Mark Helmlinger from the NASA Jet Propulsion Laboratory in Pasadena, California. Additional photos and a journal can be found on the MISR Validation Web Page. The Skukuza Airport The Road to the Tower Warning sign at the Entrance to Kruger Park. When scientists venture out to the tower site they must be accompanied by an Armed Game Guard The tower is powered by these solar collectors A view of the tower A view of the tower A view of the surrounding area from the top of the tower Another view of the Skukuza area Wildlife around the Skukuza Site An Elephant, obviously irritated by the intrusions of the scientists A young Elephant and Mother Impala Warthog Baboons in the road Yellow Hornbill

120

Cavity-enhanced optical feedback-assisted photo-acoustic spectroscopy with a 10.4?m external cavity quantum cascade laser  

Science Journals Connector (OSTI)

An ultra-sensitive photo-acoustic spectrometer using a 10.4?m broadly tunable mid-IR external cavity quantum cascade laser (EC-QCL) coupled with optical feedback ... reflectivity mirrors was developed and tested...

A. Kachanov; S. Koulikov; F. K. Tittel

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "mirror experiment photo" 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.


121

1292 IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY, VOL. 20, NO. 10, OCTOBER 2010 Automatic Face Annotation in Personal Photo  

E-Print Network [OSTI]

Automatic Face Annotation in Personal Photo Collections Using Context-Based Unsupervised Clustering and Face photos that are similar in terms of capture time and visual content, allowing for the reliable use of photo sets. The photo sets were constructed using 1385 photos from the MPEG-7 Visual Core Experiment 3

Ro, Yong Man

122

Thermomechanical characterization of a membrane deformable mirror  

SciTech Connect (OSTI)

A membrane deformable mirror has been investigated for its potential use in high-energy laser systems. Experiments were performed in which the deformable mirror was heated with a 1 kW incandescent lamp and the thermal profile, the wavefront aberrations, and the mechanical displacement of the membrane were measured. A finite element model was also developed. The wavefront characterization experiments showed that the wavefront degraded with heating. Above a temperature of 35 deg. C, the wavefront characterization experiments indicated a dramatic increase in the high-order wavefront modes before the optical beam became immeasurable in the sensors. The mechanical displacement data of the membrane mirror showed that during heating, the membrane initially deflected towards the heat source and then deflected away from the heat source. Finite element analysis (FEA) predicted a similar displacement behavior as shown by the mechanical displacement data but over a shorter time scale and a larger magnitude. The mechanical displacement data also showed that the magnitude of membrane displacement increased with the experiments that involved higher temperatures. Above a temperature of 35 deg. C, the displacement data showed that random deflections as a function of time developed and that the magnitude of these deflections increased with increased temperature. We concluded that convection, not captured in the FEA, likely played a dominant role in mirror deformation at temperatures above 35 deg. C.

Morse, Kathleen A.; McHugh, Stuart L.; Fixler, Jeff

2008-10-10T23:59:59.000Z

123

Technical NoteFEASIBILITY STUDIES OF ALPHA-PARTICLE CHANNELING IN MIRROR MACHINES  

E-Print Network [OSTI]

Technical NoteFEASIBILITY STUDIES OF ALPHA-PARTICLE CHANNELING IN MIRROR MACHINES A. I. ZHMOGINOV such as mirror machines can benefit this concept by efficiently redirecting a-particle energy to fuel ion heating designs and for proof-of-principle experiments. KEYWORDS: alpha channeling, mirror machines, ray tracing

124

Physics of mirror systems  

SciTech Connect (OSTI)

In recent years the emphasis in research on the magnetic mirror approach to fusion has been shifted to address what are essentially economically-motivated issues. The introduction of the Tandem Mirror idea solved in principal the problem of low Q (low fusion power gain) of mirror-based fusion systems. In order to optimize the tandem mirror idea from an economic standpoint, some important improvements have been suggested. These improvements include the thermal barrier idea of Baldwin and Logan and the axicell concept of Kesner. These new modifications introduce some special physics considerations. Among these are (1) The MHD stability properties of high energy electron components in the end cells; (2) The optimization of end-cell magnetic field configurations with the objective of minimizing equilibrium parallel currents; (3) The suppression of microstabilities by use of sloshing ion distributions. Following a brief outline of tandem mirror concepts, the above three topics are discussed, with illustrative examples taken from earlier work or from recent design studies.

Post, R.F.

1982-05-01T23:59:59.000Z

125

Tandem-mirror program: status and projection  

SciTech Connect (OSTI)

Construction of MFTF-B is scheduled for completion in 1985. Results of experiments in TMX-U and MFTF-B will permit the design of the D-T burning tandem-mirror next-step facility (TMNS) in which physics issues will not be at issue. TMNS will be a facility for engineering research and development. The end cells of TMNS are expected to be appropriate for a tandem-mirror demonstration fusion reactor (TMR), construction of which should begin about 1986 for operation in the 1990's.

Van Atta, C.M.

1981-03-12T23:59:59.000Z

126

Plasma confinement in the TMX tandem mirror  

SciTech Connect (OSTI)

Plasma confinement in the Tandem Mirror Experiment (TMX) is described. Axially confining potentials are shown to exist throughout the central 20-cm core of TMX. Axial electron-confinement time is up to 100 times that of single-cell mirror machines. Radial transport of ions is smaller than axial transport near the axis. It has two parts at large radii: nonambipolar, in rough agreement with predictions from resonant-neoclassical transport theory, and ambipolar, observed near the plasma edge under certain conditions, accompanied by a low-frequency, m = 1 instability or strong turbulence.

Hooper, E.B. Jr.; Allen, S.L.; Casper, T.A.

1981-04-29T23:59:59.000Z

127

BOREAS Photo Gallery  

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

Photo Gallery Photo Gallery These pages have been created to allow users access to a photo library of the BOREAS research sites. Click the BOREAS web page to access data from the project. Also the BOREAS historical web site provides important background information on the BOREAS project The BOREAS Study Region Northern Study Area Southern Study Area The Northern Study Area (NSA) Location of the NSA within Canada. (click the picture for a link to the NSA website) Map of the BOREAS Northern Study Area Satellite Images of the NSA Satellite image of the NSA (Landsat TM July 25, 1990) Land Cover Classifcation image of the NSA (August 20, 1988) Route 280 The NSA landscape and Highway 391 (looking east), taken from the NSA-UBS tower Typical vehicle Beaver Pond Site Fen Site Old Aspen Site

128

Engines Photo Archive  

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

Engines Photo Archive Engines Photo Archive The following images may be used freely as long as they are accompanied by a statement that they were used "Courtesy of Argonne National Laboratory" (see our disclaimer). To download the high-resolution version of each picture, right-click on the "Download high-resolution image" text beneath the picture and select "Save Link As..." from the resulting pop-up menu. A researcher readies an endoscope to capture diesel emissions images. Diesel Emissions: Readying an endoscope to capture diesel emissions images.Photo courtesy of Argonne National Laboratory. Download high-resolution image. A researcher readies an endoscope to capture diesel emissions images. Diesel Particulates: Argonne's micro-imaging system for diesel particulates. Read story. Download high-resolution image.

129

Visualizing Brand Associations from Web Community Photos  

E-Print Network [OSTI]

and visualizing core visual concepts associated with brands, and (ii) localizing the regions of brand in images. With experi- ments on about five millions of images of 48 brands crawled from five popular online photo--Economics Keywords Brand associations, summarization and visualization of mul- timedia data, image segmentation 1

Xing, Eric P.

130

Visualizing Brand Associations from Web Community Photos  

E-Print Network [OSTI]

the regions of brand in the images. With experi- ments on about five millions of images of 48 brands crawled and visualization of mul- timedia data; image segmentation 1. INTRODUCTION Brand equity describes a set of valuesVisualizing Brand Associations from Web Community Photos Gunhee Kim Carnegie Mellon University

Xing, Eric P.

131

Manhattan Project: Photo Gallery  

Office of Scientific and Technical Information (OSTI)

Leslie Groves and J. Robert Oppenheimer PHOTO GALLERY Leslie Groves and J. Robert Oppenheimer PHOTO GALLERY Resources Additional information is available regarding the following "animated gifs" and other photographs: Alpha Racetrack, Y-12 Berkeley Meeting The "Big House" Blast (Animation) Events Images First Atomic Energy Commissioners Fuller Lodge F Reactor Plutonium Production Complex Hiroshima Images Image Retouching Kasparov, Kamen, and Kheifits Los Alamos Scientists Los Alamos Street Scene "Met Lab" Alumni Nagasaki Images Nixon and the Atomic Pioneers People Images Places Images Potsdam Note "Rad Lab" Staff S-1 Committee San Ildefonso Pueblo Party Science Images Solvay Physics Conference Tech Area Gallery (Large) Tech Area Gallery (Small) Trinity Images Trinity (Color Photograph)

132

Photos | Argonne National Laboratory  

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

Photos Photos Browse By - Any - General Argonne Information -Awards -Honors Energy -Energy efficiency --Vehicles ---Alternative fuels ---Automotive engineering ---Biofuels ---Diesel ---Electric drive technology ---Fuel economy ---Fuel injection ---Heavy-duty vehicles ---Hybrid & electric vehicles ---Hydrogen & fuel cells ---Internal combustion ---Maglev systems ---Powertrain research ---Vehicle testing --Building design ---Construction ---Industrial heating & cooling ---Industrial lighting --Manufacturing -Energy sources --Renewable energy ---Bioenergy ---Geothermal energy ---Hydropower ---Solar energy ---Wind energy --Fossil fuels ---Coal ----Carbon capture & sequestration ---Oil ---Natural Gas --Hydrogen --Nuclear energy ---Nuclear energy modeling & simulation ---Nuclear fuel cycle ----Geology & disposal

133

Photos | Argonne National Laboratory  

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

Photos Photos Browse By - Any - General Argonne Information -Awards -Honors Energy -Energy efficiency --Vehicles ---Alternative fuels ---Automotive engineering ---Biofuels ---Diesel ---Electric drive technology ---Fuel economy ---Fuel injection ---Heavy-duty vehicles ---Hybrid & electric vehicles ---Hydrogen & fuel cells ---Internal combustion ---Maglev systems ---Powertrain research ---Vehicle testing --Building design ---Construction ---Industrial heating & cooling ---Industrial lighting --Manufacturing -Energy sources --Renewable energy ---Bioenergy ---Geothermal energy ---Hydropower ---Solar energy ---Wind energy --Fossil fuels ---Coal ----Carbon capture & sequestration ---Oil ---Natural Gas --Hydrogen --Nuclear energy ---Nuclear energy modeling & simulation ---Nuclear fuel cycle ----Geology & disposal

134

Development of magnetic mirror systems for nuclear testing applications  

SciTech Connect (OSTI)

Several system studies have concluded that the small size and steady state nature of magnetic mirror systems provide attractive features for nuclear-testing applications. The principle shortcoming of mirror systems is their small data base relative to that of tokamaks. This paper summarizes the present data base and describes experiments that could be carried out with small modifications of existing facilities to explore plasma physics issues associated with the production of high neutron fluxes in magnetic mirror configurations. The experiments would demonstrate physics principles important to such future applications of fusion power neutrons as blanket testing, tritium production, fissile fuel production, or decontamination of high-level radioactive nuclear-reactor wastes.

Simonen, T.C.; Futch, A.H.; Kaiser, T.B.

1986-08-07T23:59:59.000Z

135

Photos on This Web Site  

Broader source: Energy.gov [DOE]

Most of the geothermal energy photos used on this web site can be obtained from the National Renewable Energy Laboratory's Photographic Information eXchange (PIX). Before using a photo, please read...

136

Photo Galleries | Argonne Leadership Computing Facility  

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

News & Events Web Articles In the News Upcoming Events Past Events Informational Materials Photo Galleries Photo Galleries Mira installing Mira...

137

Photo Contest Closing date 2013 9 19  

E-Print Network [OSTI]

2013 About Photo Contest Closing date 2013 9 19 Photo Contest Eligibility International) (8MB ) By E-Mail (Maximum size 8MB per photo, up to 2 photos) kisc-koryu@edu.kobe-u.ac.jp 2) CD-R () By Post or submit by hand to KISC Photos (up to 2 photos) burned on a CD-R. Note that your data

Banbara, Mutsunori

138

D-Zero photos  

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

located at located at the point on the accelerator ring called D0, so is called DZero. The original DZero has been upgraded to give better identification of particles. The upgrade added a better inner tracker and magnet. Usually, you cannot see any of the detector except the muon detector and the surrounding concrete blocks, but these photos show it when it was partially dismantled. Detector during upgrade. Notice the beam pipe in the center of the photo. When the upgrade was finished and the detector was moved back into place, the beam pipe was connected to the rest of the accelerator beam pipe. Three main layers of the detector. Notice the size of the people. One section of the fibers in the "central fiber tracker." The closely placed fibers record the time and place as particles pass through; they "track" the particles.

139

Focussing of synchroton radiation X-ray beams using synthetic multilayer mirrors  

Science Journals Connector (OSTI)

A two multilayer X-ray mirror system has been developed to focus 8 keV X-rays from a synchrotron X-ray source. The system uses a Kirkpatrick-Baez mirror geometry and the mirrors are made by sputtering carbon and tungsten layers on spherical optical mirror substrates. A focused X-ray spot 40 ?m wide by 10 ?m high was obtained using an 8 keV X-ray beam from a wiggler beamline at the Stanford Synchrotron Radiation Laboratory. Similar mirror systems may be useful for microprobe and small sample experiments using both synchrotron and laboratory sources.

A.C. Thompson; Y. Wu; J.H. Underwood; T.W. Barbee Jr.

1987-01-01T23:59:59.000Z

140

More about neutron - mirror neutron oscillation  

E-Print Network [OSTI]

It was pointed out recently that oscillation of the neutron $n$ into mirror neutron $n'$, a sterile twin of the neutron with exactly the same mass, could be a very fast process with the the baryon number violation, even faster than the neutron decay itself. This process is sensitive to the magnetic fields and it could be observed by comparing the neutron lose rates in the UCN storage chambers for different magnetic backgrounds. We calculate the probability of $n-n'$ oscillation in the case when a mirror magnetic field $\\vec{B}'$ is non-zero and show that in this case it can be suppressed or resonantly enhanced by applying the ordinary magnetic field $\\vec{B}$, depending on its strength and on its orientation with respect to $\\vec{B}'$. The recent experimental data, under this hypothesis, still allow the $n-n'$ oscillation time order 1 s or even smaller. Moreover, they indicate that the neutron losses are sensitive to the orientation of the magnetic field. %at about $3\\sigma$ level. If these hints will be confirmed in the future experiments, this would point to the presence of the mirror magnetic field on the Earth of the order of 0.1 G, or some equivalent spin-dependent force of the other origin that makes a difference between the neutron and mirror neutron states.

Zurab Berezhiani

2008-04-13T23:59:59.000Z

Note: This page contains sample records for the topic "mirror experiment photo" 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

Passport Photo Form 1. Passport Photo Requirements: Your photographs must be  

E-Print Network [OSTI]

Passport Photo Form 1. Passport Photo Requirements: Your photographs must be: · Taken in normal, photo-quality paper · 2 x 2 inches in size · In color · Full face, front view with a plain white or off Photo: 1 photo - $3.00 2 or more photos - $2.00 EACH 3. Number of Photos Requested: 4. Method of Payment

Kostic, Milivoje M.

142

Deformable Mirror Materials Issue Assessment  

SciTech Connect (OSTI)

It was a pleasure to speak with you and Dr. Olivier Guyon about your project to develop a coronagraph and in particular about materials science considerations in the development of the deformable mirror (DM) for the coronagraph. The coronagraph application will demand more of a DM than previous applications with regard to precision, and since the characterization and modeling tools are currently under development, you asked me to comment on materials issues that might impact the DM design and testing. I have not conducted research on this question, and my own research on modeling MEMS has not included DM systems. I am only in a position to discuss some general considerations that may help in developing a research plan for the DM system. As I understand it, the relevant points about the DM system are as follows. The DM surface needs to be positioned to less than 1 {angstrom} RMS of the desired shape, and be stable to 0.3 {angstrom} RMS for an hour. In the ultimate application in space the stability requirements may be greater. For example, the DM shape can be set using a bright star and then allow the coronagraph to be turned to a dim star to collect data for several hours, counting on the mirror shape to be stable. The DM is made of a polysilicon membrane coated with one or more metal layers for the reflective surface and actuated by 32x32 or 64x64 electrostatic actuators on the back side. The uncertainty in the position of any one actuator should be at the few-picometer level or less averaged over the 300-{micro}m region of the actuator. Currently, experiments are conducted that can characterize the surface shape to the 1 nm level, and it is anticipated that the experiments will be able to characterize the shape at the sub-Angstrom level but not in the immediate future. Regarding stability, under relatively large deformations (10's of nm), the DM mirror surface shows no hysteresis at the measurable nm level. Let me begin by saying that I am not aware of any article in the literature that directly assesses surface position stability at the sub-Angstrom level across 100's of microns of surface. Interferometry is typically used for precise metrology over areas this large, but not typically at the sub-Angstrom level. For the purpose of these comments, I assume that it will be possible to measure the precision of the mirror shape and stability at the requisite sub-Angstrom level at some point during the coronagraph development using interferometers or some other high-precision metrology technique. The hope is that the comments at this point may identify some potential issues that can be resolved early in the development to avoid costly surprises in the later stages.

Rudd, R E

2008-05-27T23:59:59.000Z

143

Fusion oriented plasma research in Bangladesh: theoretical study on low-frequency dust modes and edge plasma control experiment in tandem mirror  

Science Journals Connector (OSTI)

A collaboration with a Japanese institute in the field of plasmawall interaction and dusty plasma has been formed in order to understand the physical properties of edge plasma. Results of the theoretical study on dusty plasma and the experimental study on GAMMA10 plasma are presented in this paper. Part A deals with the results obtained from the theoretical investigation of the properties and excitation of low-frequency electrostatic dust modes, e.g. the dust-acoustic (DA) and dust-lower-hybrid (DLH) waves, using the fluid models. In this study, dust grain charge is considered as a dynamic variable in streaming magnetized dusty plasmas with a background of neutral atoms. Dust charge fluctuation, collisional and streaming effects on DA and DLH modes are discussed. Part B deals with the results of the plasma control experiment in a non-axisymmetric magnetic field region of the anchor cell of GAMMA10. The observations, which indicate the comparatively low-temperature plasma formation in the anchor cell, are explained from the viewpoint of enhanced outgassing from the wall due to the interaction of the drifted-out ions. The drifting of ions is thought to be due to the effect of a local non-axisymmetric magnetic field. Experimental results on the control of the wallplasma interaction by covering the flux tube of a non-axisymmetric magnetic field region by conducting plates are given. Possible influences of the asymmetric magnetic field and conducting plates on the GAMMA10 plasma parameters are discussed.

Md. Khairul Islam; Mohammed Salimullah; Kiyoshi Yatsu; Yousuke Nakashima; Yuki Ishimoto

2003-01-01T23:59:59.000Z

144

Lithium-based electrochromic mirrors  

E-Print Network [OSTI]

LITHIUM-BASED ELECTROCHROMIC MIRRORS Thomas J. Richardson*with pure antimony films. Electrochromic cycling speed andand silver. INTRODUCTION Electrochromic devices that exhibit

Richardson, Thomas J.; Slack, Jonathan L.

2003-01-01T23:59:59.000Z

145

photo | netl.doe.gov  

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

Video, Images, and Photos News Gasifipedia Gasifier Optimization Feed Systems Syngas Processing Systems Analyses Gasification Plant Databases International Activity Program Plan...

146

Earth Day 2014 Photo Contest  

Office of Environmental Management (EM)

Earth Day 2014 Photo Contest CALLING ALL PHOTOGRAPHERS Professionals, amateurs, and the camera sharp shooter We invite all DOE employees and DOE contractors to share images of...

147

Photo of the Week: 2014  

Broader source: Energy.gov [DOE]

Each week, we highlight some of our favorite energy and science photos from all over the U.S. Check out our favorites!

148

Neutron diagnostics for mirror hybrids  

SciTech Connect (OSTI)

Fusion-fission (FuFi) hybrids will need instrumentation to diagnose the deuteriumtritium plasma, whose 14-MeV neutron emission is the driver of the sub-critical fission core. While the fission neutron yield rate (Y{sub fi} and hence power P{sub fi}) can be monitored with standard instrumentation, fusion plasmas in hybrids require special diagnostics where the determination of Y{sub th} ({proportional_to}P{sub fu}) is a challenge. Information on Y{sub fu} is essential for assessing the fusion plasma performance which together with Y{sub fi} allows for the validation of the neutron multiplication factor (k) of the subcritical fission core. Diagnostics for hybrid plasmas are heuristically discussed with special reference to straight field line mirror (SFLM). Relevant DT plasma experience from JET and plans for ITER in the main line of fusion research were used as input. It is shown that essential SFLM plasma information can potentially be obtained with proposed instrumentation, but the state of the hybrid plasma must be predictably robust as derived from fully diagnosed dedicated experiments without interface restrictions of the hybrid application.

Kaellne, Jan; Noack, Klaus; Agren, Olov; Gorini, Giuseppe; Tardocchi, Marco; Grosso, Giovanni [Department of Engineering Sciences, Uppsala University, Box 256, SE-751 21 Uppsala (Sweden); Universita degli Studi di Milano - Bicocca, Dip. di Fisica 'G. Occhialini', Piazza della Scienza 3, 20126, Milan (Italy)

2012-06-19T23:59:59.000Z

149

Photo tourism: exploring photo collections in 3D Richard Hu Noah Snavely, Steven M. Seitz, and Richard Szeliski. Photo tourism: exploring photo collections in  

E-Print Network [OSTI]

Photo tourism: exploring photo collections in 3D Richard Hu Noah Snavely, Steven M. Seitz, and Richard Szeliski. Photo tourism: exploring photo collections in 3d. In SIGGRAPH '06: ACM SIGGRAPH 2006 browsing a large unstructured collection of photos of a scene using a 3D interface. The approach is based

Waterloo, University of

150

Science, Optics and You: Mirror and Images  

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

opticstutorialsindex.html INTRODUCTION MIRRORS AND IMAGES MODULE m3 SCIENCE, OPTICS & YOU GUIDEBOOK - 44 - SCIENCE, OPTICS & YOU GUIDEBOOK - 45 - m3: Mirrors and...

151

Photo Walk September 22, 2012 AUTHORIZATION AND RELEASE FORM FOR PHOTO CONTEST  

E-Print Network [OSTI]

Photo Walk September 22, 2012 AUTHORIZATION AND RELEASE FORM FOR PHOTO CONTEST I (name printed, all Photo(s), Artwork and /or other work in any media which I submit as part of my participation in the photo contest related to the Fermilab Photo Walk to be held at Fermilab on September 22, 2012. The use

Quigg, Chris

152

A photo-stable chalcogenide glass  

Science Journals Connector (OSTI)

Photo-darkening and photo-bleaching are well known phenomena in As-Se and Ge-Se chalcogenide glasses, respectively. Consequently, a systematic dependence of photo-induced optical...

Yang, Guang; Jain, Himanshu; Ganjoo, Ashtosh; Zhao, Donghui; Xu, Yinsheng; Zeng, Huidan; Chen, Guorong

2008-01-01T23:59:59.000Z

153

UC land grants: A photo history  

E-Print Network [OSTI]

Berkeley UC land grants: A photo history D Early days: 1862UCR/CMP UC land grants: A photo history H. In 1987, UC

Editors, By

2012-01-01T23:59:59.000Z

154

CFC Photo Gallery | Department of Energy  

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

CFC Photo Gallery CFC Photo Gallery Addthis 1 of 5 2 of 5 3 of 5 4 of 5 5 of 5 View All Galleries...

155

Geothermal Energy Photos | Department of Energy  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Information Resources Geothermal Energy Photos Geothermal Energy Photos Image of the Week: Energy Department investments are exploring for geothermal power from abundant natural...

156

Schlumberger Office Photos | Open Energy Information  

Open Energy Info (EERE)

Photos Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: Schlumberger Office Photos Author Schlumberger Published Publisher Not Provided, 2013 DOI Not...

157

Photo Gallery: Energy Literacy in 2013 | Department of Energy  

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

Photo Gallery: Energy Literacy in 2013 Photo Gallery: Energy Literacy in 2013 Photo Gallery: Energy Literacy in 2013 December 18, 2013 - 10:27am Addthis In celebration of Earth Day in April, elementary school students at Churchill Road Elementary School in McLean, Virginia, learned about energy literacy by riding the Energy Department’s energy bike. The bike enabled students to pedal for power and experience the difference in physical effort necessary to power incandescent, compact fluorescent, and LED lighting. This lesson highlighted Energy Principle 4, which states that various sources of energy can be used to power human activities, and often this energy must be transferred from source to destination. Check out energyliteracyprinciples.org for more Energy Literacy lessons and activities. | Photo courtesy of Churchill Road Elementary School

158

Photo Galleries | Department of Energy  

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

About Energy.gov » News & Blog » Photo Galleries About Energy.gov » News & Blog » Photo Galleries Photo Galleries Gallery Title Topic - Any - Tax Credits, Rebates, Savings Energy Efficiency -Homes --Heating & Cooling ---Heating ---Cooling ---Heat Pumps --Water Heating ---Swimming Pool Heaters --Home Weatherization ---Home Energy Audits ---Insulation ---Sealing Your Home ---Ventilation --Saving Electricity ---Lighting ---Appliances & Electronics ---Buying & Making Electricity --Design & Remodeling ---Windows, Doors, & Skylights --Landscaping -Vehicles --Alternative Fuel Vehicles --Fuel Economy --Batteries --Biofuels --Clean Cities -Building Design --Construction --Commercial Weatherization --Commercial Heating & Cooling --Commercial Lighting --Solar Decathlon -Manufacturing Energy Sources -Renewables --Solar ---SunShot --Wind --Water

159

Photo Galleries | Department of Energy  

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

News & Blog » Photo Galleries News & Blog » Photo Galleries Photo Galleries Gallery Title Topic - Any - Tax Credits, Rebates, Savings Energy Efficiency -Homes --Heating & Cooling ---Heating ---Cooling ---Heat Pumps --Water Heating ---Swimming Pool Heaters --Home Weatherization ---Home Energy Audits ---Insulation ---Sealing Your Home ---Ventilation --Saving Electricity ---Lighting ---Appliances & Electronics ---Buying & Making Electricity --Design & Remodeling ---Windows, Doors, & Skylights --Landscaping -Vehicles --Alternative Fuel Vehicles --Fuel Economy --Batteries --Biofuels --Clean Cities -Building Design --Construction --Commercial Weatherization --Commercial Heating & Cooling --Commercial Lighting --Solar Decathlon -Manufacturing Energy Sources -Renewables --Solar ---SunShot --Wind --Water

160

Photo Galleries | Department of Energy  

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

About Energy.gov » News & Blog » Photo Galleries About Energy.gov » News & Blog » Photo Galleries Photo Galleries Gallery Title Topic - Any - Tax Credits, Rebates, Savings Energy Efficiency -Homes --Heating & Cooling ---Heating ---Cooling ---Heat Pumps --Water Heating ---Swimming Pool Heaters --Home Weatherization ---Home Energy Audits ---Insulation ---Sealing Your Home ---Ventilation --Saving Electricity ---Lighting ---Appliances & Electronics ---Buying & Making Electricity --Design & Remodeling ---Windows, Doors, & Skylights --Landscaping -Vehicles --Alternative Fuel Vehicles --Fuel Economy --Batteries --Biofuels --Clean Cities -Building Design --Construction --Commercial Weatherization --Commercial Heating & Cooling --Commercial Lighting --Solar Decathlon -Manufacturing Energy Sources -Renewables --Solar ---SunShot --Wind --Water

Note: This page contains sample records for the topic "mirror experiment photo" 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

ROSAT wide field camera mirrors  

Science Journals Connector (OSTI)

The ROSAT wide field camera (WFC) is an XUV telescope operating in the 12250-eV energy band. The mirror system utilizes Wolter-Schwarzschild type I (WS I) grazing incidence optics...

Willingale, R

1988-01-01T23:59:59.000Z

162

Amazing Mirrors and Superlative Supercomputers | U.S. DOE Office of Science  

Office of Science (SC) Website

Amazing Amazing Mirrors and Superlative Supercomputers News Featured Articles 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 Science Headlines Presentations & Testimony News Archives Contact Information Office of Science U.S. Department of Energy 1000 Independence Ave., SW Washington, DC 20585 P: (202) 586-5430 11.29.11 Amazing Mirrors and Superlative Supercomputers Argonne's Mira will accelerate scientific discoveries and societal benefits. Print Text Size: A A A Subscribe FeedbackShare Page Click to enlarge photo. Enlarge Photo Mira--Argonne's IBM Blue Gene/Q Courtesy of Argonne National Laboratory Argonne National Laboratory's IBM Blue Gene/Q supercomputer, Mira, is an engineering marvel whose unique architecture and capabilities will be thoroughly explored as soon as it goes online in 2012. Supported by the

163

High repetition rate plasma mirror device for attosecond science  

SciTech Connect (OSTI)

This report describes an active solid target positioning device for driving plasma mirrors with high repetition rate ultra-high intensity lasers. The position of the solid target surface with respect to the laser focus is optically monitored and mechanically controlled on the nm scale to ensure reproducible interaction conditions for each shot at arbitrary repetition rate. We demonstrate the target capabilities by driving high-order harmonic generation from plasma mirrors produced on glass targets with a near-relativistic intensity few-cycle pulse laser system operating at 1kHz. During experiments, residual target surface motion can be actively stabilized down to 47?nm (root mean square), which ensures sub-300-as relative temporal stability of the plasma mirror as a secondary source of coherent attosecond extreme ultraviolet radiation in pump-probe experiments.

Borot, A.; Douillet, D.; Iaquaniello, G.; Lefrou, T.; Lopez-Martens, R. [Laboratoire d'Optique Applique, ENSTA-ParisTech, CNRS, Ecole Polytechnique, UMR 7639, 91761 Palaiseau (France)] [Laboratoire d'Optique Applique, ENSTA-ParisTech, CNRS, Ecole Polytechnique, UMR 7639, 91761 Palaiseau (France); Audebert, P.; Geindre, J.-P. [Laboratoire pour l'Utilisation des Lasers Intenses, Ecole Polytechnique, CNRS, 91128 Palaiseau Cedex (France)] [Laboratoire pour l'Utilisation des Lasers Intenses, Ecole Polytechnique, CNRS, 91128 Palaiseau Cedex (France)

2014-01-15T23:59:59.000Z

164

Doppler Effect Associated with the Reflection of Light on a Moving Mirror  

E-Print Network [OSTI]

The Doppler Effect associated with the reflection on a moving mirror is reduced to two Doppler Effect experiments involving the incoming incident ray and the outgoing reflected ray or vice-versa. The dependence of the corresponding Doppler factors on the incidence angle on the stationary mirror.

Bernhard Rothenstein; Ioan Damian

2005-08-18T23:59:59.000Z

165

Photo Credit: David Development of a decision  

E-Print Network [OSTI]

Photo Credit: David H. Uthe Development of a decision support model to quantify water use/2004, Water Sustainability Undergraduate Fellowship Program #12;Photo Credit: David H. Uthe Objective, and vegetation water use in riparian areas characteristic of the state of AZ. Photo Credit: Gertrud Konings Photo

Fay, Noah

166

Firewalls, smoke and mirrors  

E-Print Network [OSTI]

The radiation emitted by a black hole (BH) during its evaporation has to have some degree of quantum coherence to accommodate a unitary time evolution. We parametrize the degree of coherence by the number of coherently emitted particles $N_{coh}$ and show that it is severely constrained by the equivalence principle. We discuss, in this context, the fate of a shell of matter that falls into a Schwarzschild BH. Two points of view are considered, that of a stationary external observer and that of the shell itself. From the perspective of the shell, the near-horizon region has an energy density proportional to $N_{coh}^2$ in Schwarzschild units. So, if $N_{coh}$ is parameterically larger than the square root of the BH entropy $S_{BH}^ {1/2}$, a firewall or more generally a "wall of smoke" forms and the equivalence principle is violated while the BH is still semiclassical. To have a degree of coherence that is parametrically smaller than $S_{BH}^{1/2}$, one has to introduce a new sub-Planckian gravitational length scale, which likely also violates the equivalence principle. And so our previously proposed model which has $N_{coh}=S_{BH}^{1/2}$ is singled out. From the external-observer perspective, we find that the time it takes for the information about the state of the shell to get re-emitted from the BH is inversely proportional to $N_{coh}$. When the rate of information release becomes order unity, the semiclassical approximation starts to break down and the BH becomes a perfect reflecting information mirror.

Ram Brustein; A. J. M. Medved

2014-01-07T23:59:59.000Z

167

Geotagged Photo Recognition using Corresponding Aerial Photos with Multiple Kernel Learning  

E-Print Network [OSTI]

Geotagged Photo Recognition using Corresponding Aerial Photos with Multiple Kernel Learning Keita for geotagged photos, we have already proposed ex- ploiting aerial photos around geotag places as addi- tional image features for visual recognition of geo- tagged photos. In the previous work, to fuse two kinds

Yanai, Keiji

168

MODELING PHOTO COMPOSITION AND ITS APPLICATION TO PHOTO RE-ARRANGEMENT  

E-Print Network [OSTI]

MODELING PHOTO COMPOSITION AND ITS APPLICATION TO PHOTO RE-ARRANGEMENT Jaesik Park, Joon-Young Lee a learning based photo composition model and its application on photo re-arrangement. In contrast to previ- ous approaches which evaluate quality of photo composition using the rule of thirds or the golden

Kim, Dae-Shik

169

From Photo Networks to Social Networks, Creation and Use of a Social Network Derived with Photos  

E-Print Network [OSTI]

From Photo Networks to Social Networks, Creation and Use of a Social Network Derived with Photos and photos have received plenty of attention in the digital age. In this paper, we show how social photos that reveals social attributes. From this photo network, a social network is extracted that can help to build

Boyer, Edmond

170

Acoustic enhancement for photo detecting devices  

DOE Patents [OSTI]

Provided are improvements to photo detecting devices and methods for enhancing the sensitivity of photo detecting devices. A photo detecting device generates an electronic signal in response to a received light pulse. An electro-mechanical acoustic resonator, electrically coupled to the photo detecting device, damps the electronic signal and increases the signal noise ratio (SNR) of the electronic signal. Increased photo detector standoff distances and sensitivities will result.

Thundat, Thomas G; Senesac, Lawrence R; Van Neste, Charles W

2013-02-19T23:59:59.000Z

171

Compact neutron imaging system using axisymmetric mirrors  

DOE Patents [OSTI]

A dispersed release of neutrons is generated from a source. A portion of this dispersed neutron release is reflected by surfaces of a plurality of nested, axisymmetric mirrors in at least an inner mirror layer and an outer mirror layer, wherein the neutrons reflected by the inner mirror layer are incident on at least one mirror surface of the inner mirror layer N times, wherein N is an integer, and wherein neutrons reflected by the outer mirror are incident on a plurality of mirror surfaces of the outer layer N+i times, where i is a positive integer, to redirect the neutrons toward a target. The mirrors can be formed by a periodically reversed pulsed-plating process.

Khaykovich, Boris; Moncton, David E; Gubarev, Mikhail V; Ramsey, Brian D; Engelhaupt, Darell E

2014-05-27T23:59:59.000Z

172

Photo-Ionization of Crystalline Anthracene  

Science Journals Connector (OSTI)

The photo-ionization spectra of the ground, first singlet, and first triplet states of crystalline anthracene are calculated assuming transitions to a simple continuum. The calculations neglect vibrational-overlap factors which will reduce the cross sections perhaps by as much as a factor of 10. Recombination is also neglected, and is blamed for discrepancies between the calculation and experiments which measure photo-currents. Kepler has reported a cross section of 210-19 cm2 from the first singlet, Courtens et al., one of 0.610-19; the calculation gives 610-18. Holzman et al. report 10-20 cm2 from the first triplet; the calculation gives 610-18. If one accounted for vibrational overlap and recombination (which will be larger in the second experiment, because of the smaller kinetic energy), the agreement would be good. The agreement is not so good with the magnitude of transitions from the ground state, though the energy dependence gives a good fit. The discrepancy may be due to the (neglected) influence of auto-ionizing states on the final-state wave functions. Based on a theory by Choi, the singlet exciton-exciton ionization rate constant is calculated to be 210-9 cm3 sec-1 (vibrations and recombination neglected) compared with Silver's experimental value of 0.810-10; again the agreement is good. Finally, the time needed for a photo-ionized electron to lose kinetic energy by exciting a triplet is calculated to be 10-9 sec or longer, so this mechanism is ruled out as an energy-loss process in comparison with the emission of optical vibrations, which has been estimated to take about 10-13 sec.

John P. Hernandez

1968-05-15T23:59:59.000Z

173

Alpha Channeling in Mirror Machines  

SciTech Connect (OSTI)

Because of their engineering simplicity, high-?, and steady-state operation, mirror machines and related open-trap machines such as gas dynamic traps, are an attractive concept for achieving controlled nuclear fusion. In these open-trap machines, the confinement occurs by means of magnetic mirroring, without the magnetic field lines closing upon themselves within the region of particle confinement. Unfortunately, these concepts have not achieved to date very spectacular laboratory results, and their reactor prospects are dimmed by the prospect of a low Q-factor, the ratio of fusion power produced to auxiliary power. Nonetheless, because of its engineering promise, over the years numerous improvements have been proposed to enhance the reactor prospects of mirror fusion, such as tandem designs, end-plugging, and electric potential barriers.

Fisch N.J.

2005-10-19T23:59:59.000Z

174

Parasitic driven heliostat mirror declinator  

SciTech Connect (OSTI)

An automatic parasitically driven declinator is disclosed for changing the tilt angle of the mirror of a heliostat to provide solar declination tracking by the heliostat. The declinator includes an axial gear drive train coupled to the polar axial shaft of the heliostat, which shaft is rotated. A pendulum arrangement coupled via an input shaft to the axial gear drive train is substantially held in plumb position by gravity wherein the gear drive train is driven as it is rotated about the polar axis by the polar axial shaft. An output shaft coupled to the gear train is rotated to drive a skew bar linkage assembly that is connected to the mirror mounting assembly of the heliostat. The gear ratio of the gear drive train assembly is made 365:1 so that the mirror angle is annually nutated a predetermined number of degrees corresponding to the cyclic variations of solar declination.

Rhodes, W.A.

1983-09-06T23:59:59.000Z

175

The Photo-Voltaic Effect  

Science Journals Connector (OSTI)

The Schottky-Mott theory of the barrier layer rectification is extended with respect to the action of light absorbed in the barrier layer. The essential physical assumptions to be used are as follows: (a) The barrier layer is a boundary layer of a semiconductor with a reduced density of mobile charges (either electrons or "holes"); (b) both positive and negative mobile charges are released by light; (c) the recombination within the barrier layer is negligible; and, (d) the electrons and "holes" have the same properties whether released by light or by thermal agitation. Thus an "equation of state" connecting photo-voltage, photo-current, light intensity, wave-length, external resistance, etc., is derived. Among others the regularities of short circuit current, open circuit voltage, photo-characteristic, dark characteristic (barrier layer rectification), power output, and spectral distribution of the quantum yield are involved.

K. Lehovec

1948-08-15T23:59:59.000Z

176

Compaction managed mirror bend achromat  

DOE Patents [OSTI]

A method for controlling the momentum compaction in a beam of charged particles. The method includes a compaction-managed mirror bend achromat (CMMBA) that provides a beamline design that retains the large momentum acceptance of a conventional mirror bend achromat. The CMMBA also provides the ability to tailor the system momentum compaction spectrum as desired for specific applications. The CMMBA enables magnetostatic management of the longitudinal phase space in Energy Recovery Linacs (ERLs) thereby alleviating the need for harmonic linearization of the RF waveform.

Douglas, David (Yorktown, VA)

2005-10-18T23:59:59.000Z

177

Photo tourism: exploring photo collections in 3D  

Science Journals Connector (OSTI)

We present a system for interactively browsing and exploring large unstructured collections of photographs of a scene using a novel 3D interface. Our system consists of an image-based modeling front end that automatically computes the viewpoint of each ... Keywords: image-based modeling, image-based rendering, photo browsing, structure from motion

Noah Snavely; Steven M. Seitz; Richard Szeliski

2006-07-01T23:59:59.000Z

178

Gallery of Historic Photos | Y-12 National Security Complex  

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

Gallery of Historic Photos Gallery of Historic Photos Ed Westcott Manhattan Project official photographer. All photos in our History section are by Ed Westcott, the government's...

179

THE 2014 ETHICS STORYTELLING PHOTO CONTEST ENTRY FORM First name: ____________________________________________  

E-Print Network [OSTI]

THE 2014 ETHICS STORYTELLING PHOTO CONTEST ENTRY FORM First name --------------------------------------------------------------------------------------------------------------------- PHOTO INFORMATION Title of the Photograph:____________________________________________________________ How did you hear about the Ethics Storytelling Photo Contest? (check all

Rock, Chris

180

Restoration Monitoring-A Simple Photo Monitoring Method | Department...  

Energy Savers [EERE]

Restoration Monitoring-A Simple Photo Monitoring Method Restoration Monitoring-A Simple Photo Monitoring Method Restoration Monitoring-A Simple Photo Monitoring Method Restoration...

Note: This page contains sample records for the topic "mirror experiment photo" 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

Photo double ionization of ethylene and acetylene near threshold  

E-Print Network [OSTI]

Photo double ionization of ethylene and acetylene nearcomplete measurements of the photo double ionization ofkinetic energy of the photo electrons and the nuclear

Gaire, B.

2014-01-01T23:59:59.000Z

182

CubeSat deformable mirror demonstration  

E-Print Network [OSTI]

The goal of the CubeSat Deformable Mirror Demonstration (DeMi) is to characterize the performance of a small deformable mirror over a year in low-Earth orbit. Small form factor deformable mirrors are a key technology needed ...

Cahoy, Kerri

183

Photo of the Week: Supercomputing... from Space | Department of Energy  

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

Supercomputing... from Space Supercomputing... from Space Photo of the Week: Supercomputing... from Space June 27, 2013 - 1:46pm Addthis The Cibola Flight Experiment (CFE) is an experimental small satellite that was designed to prove that off-the-shelf computer processors can be used for supercomputing in space. The processors, also called field-programmable gate arrays, can be reconfigured while the satellite is in orbit, enabling researchers to modify them for a variety of tasks like studying lightning, disturbances in the ionosphere, and radio-frequency sources. The CFE satellite was launched on March 8, 2007, in low-earth orbit, and has operated successfully since its deployment. In this 2006 photo, Los Alamos National Laboratory scientist Daniel Seitz works on preparing the CFE satellite. | Photo by LeRoy Sanchez, Los Alamos National Laboratory.

184

OREM Photo Gallery | Department of Energy  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

OREM Photo Gallery OREM Photo Gallery Addthis ETTP (Before) 1 of 6 ETTP (Before) ETTP spans approximately 2,200 acres, and before we initiated cleanup, the site contained more than...

185

CONCEPTION OF PHOTO-INJECTORS FOR THE CTF3 Laboratoire de l'Acclrateur Linaire, IN2P3-CNRS, Universit de Paris-Sud,  

E-Print Network [OSTI]

CONCEPTION OF PHOTO-INJECTORS FOR THE CTF3 EXPERIMENT R. ROUX Laboratoire de l photo-injectors for two different linacs. One, dedicated for the so called "drive beam linac" must photo-injector are less severe since it must be operated with one or 64 bunches of 0.5 nC each

Paris-Sud XI, Université de

186

Personal Photo Album Summarization Pinaki Sinha  

E-Print Network [OSTI]

Personal Photo Album Summarization Pinaki Sinha Department of Computer Science University of California Irvine, CA jain@ics.uci.edu ABSTRACT Photo album summarization is the process of selecting a sub- set of photos from a larger collection which best preserves the information in the entire set

Reif, Rafael

187

Photo cathode laser timing response measurements  

E-Print Network [OSTI]

Photo cathode laser timing response measurements F. Löhl, H. Schlarb, E. Vogel, W. Koprek, V on the gun phase 2.) Arrival time change of photo injector laser pulses #12;Florian Löhl FLASH Seminar, June 19th, 2007 photo injector laser ~ 1.3 GHz vector modulator DAC I Q DOOCS Courtesy of I. Will #12

188

Can Photo-Evaporation Trigger Planetesimal Formation?  

E-Print Network [OSTI]

Can Photo-Evaporation Trigger Planetesimal Formation? Henry Throop John Bally SWRI Univ.Colorado / CASA DPS 12-Oct-2004 #12;Orion Nebula Photo-evaporation by extr 4 O/B stars, UV-bright, 105 solar luminosities 2000 solar-type stars with disks Photo-evaporation (PE) by external O/B stars removes disks on 105

Throop, Henry

189

AERIAL PHOTO INTERPRETATION NATIONAL INVENTORY OF LANDSCAPES  

E-Print Network [OSTI]

MANUAL FOR AERIAL PHOTO INTERPRETATION IN THE NATIONAL INVENTORY OF LANDSCAPES IN SWEDEN NILS YEAR for aerial photo interpretation 1 www-nils.slu.se SLU, Department of Forest Resource Management and Geomatics. 901 83 Umeå, Sweden #12;NILS ­ manual for aerial photo interpretation 2 Table of contents 1 About NILS

190

Photo-Galvano-Mechanical Phenomena in Nanotubes  

E-Print Network [OSTI]

Photo-Galvano-Mechanical Phenomena in Nanotubes Petr KraI\\ E. J. Mele2 , David Tomanek3 and Moshe elec- trical "ballistic current". The photo-currents can be generated even in centrosym- metric be also generated in semiconductor nanotubes or in higher bands of metallic nanotubes [2]. The photo

191

TimeVariable Photo-Evaporation of  

E-Print Network [OSTI]

TimeVariable Photo-Evaporation of Protoplanetary Disks Henry Throop (SwRI) John Bally (U. Colorado) #12;Takeaway: Photo-evaporation alters the disk structure in essentially unpredictable ways, because for disks formed at the same time in the same cluster. #12;30 Doradus: 100+ O/B stars Photo

Throop, Henry

192

Last updated October 2011 Cover Photo Contest  

E-Print Network [OSTI]

Last updated October 2011 Cover Photo Contest Guidelines 1. Open only to UCSD undergraduate submissions are allowed. 5. Submissions must be accompanied by a signed Photo Release Form (available at: http) with each submission. This information will be used for the photo credit in the inside of the front cover. 7

Hampton, Randy

193

Photo-Arbuzov rearrangements of benzyl phosphites  

Science Journals Connector (OSTI)

Photo-Arbuzov rearrangements of benzyl phosphites ... Effect of Amino Substituents on the Stereochemical Outcome of the Photo-Arbuzov Rearrangements of 1-Arylethyl Phosphorodiamidites ... Effect of Amino Substituents on the Stereochemical Outcome of the Photo-Arbuzov Rearrangements of 1-Arylethyl Phosphorodiamidites ...

Jan. Omelanzcuk; Alan E. Sopchik; Sueg Geun. Lee; Kunihiko. Akutagawa; S. Matthew. Cairns; Wesley G. Bentrude

1988-09-01T23:59:59.000Z

194

Dissertation Stories Photo Competition New Deadline  

E-Print Network [OSTI]

Dissertation Stories RESEARCH ACADEMY LEIPZIG CALL FOR WORKS Photo Competition ­ New Deadline Since doctoral candidates of the University of Leipzig to participate in a photo competition titled and images? The idea is to set up a permanent photo exhibition in the Research Academy's new premises

Schüler, Axel

195

Photo Retro-DielsAlder Reactions  

Science Journals Connector (OSTI)

Photo Retro-DielsAlder Reactions ... Photo-retro-DielsAlder (PrDA) reactions of a variety of DielsAlder (DA) adducts were studied. ... In fact, photo-rDA (PrDA) reactions have been sparsely reported in literature. ...

Valentine K. Johns; Zheng Shi; Wei Dang; Matthew D. McInnis; Yuxiang Weng; Yi Liao

2011-06-14T23:59:59.000Z

196

Note on RF Photo-Cathode Gun  

E-Print Network [OSTI]

E.R. Gray and P.M. Giles, "Photo-cathodes in AcceleratorProceedings Note on RF Photo-Cathode Gun K. -J. Kim August106 LBL-29538 Note on RF Photo-Cathode G un Kwang-Je Kim

Kim, Kwang-Je

2010-01-01T23:59:59.000Z

197

THE CHIMAERID Photo by Kara Korab  

E-Print Network [OSTI]

" Brittany Szabo 5 "Landscape" Photo Brittany Szabo 6 "Mother" Photo Brittany Szabo 7 "Seal" Photo Brittany "Mother" #12;8 Brittany Szabo "Seal" #12;9 Brittany Szabo #12;10 JourneyTowardsBefore The ocean climbed in our presence And indistinct voices warm the air There's no harm in what we can't see Ambiguous

Spence, Harlan Ernest

198

Jointly Aligning and Segmenting Multiple Web Photo Streams for the Inference of Collective Photo Storylines  

E-Print Network [OSTI]

Jointly Aligning and Segmenting Multiple Web Photo Streams for the Inference of Collective Photo,epxing}@cs.cmu.edu Abstract With an explosion of popularity of online photo sharing, we can trivially collect a huge number of photo streams for any interesting topics such as scuba diving as an outdoor recreational activity class

Xing, Eric P.

199

LITHIUM-BASED ELECTROCHROMIC MIRRORS  

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

870 870 rd Presented at the 203 Meeting of the Electrochemical Society, April 28-30, 2003 in Paris, France and published in the Proceedings. Lithium-Based Electrochromic Mirrors Thomas J. Richardson and Jonathan L. Slack Lawrence Berkeley National Laboratory April 2003 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 Research and Standards of the U.S. Department of Energy under Contract No. DE-AC03-76SF00098. LITHIUM-BASED ELECTROCHROMIC MIRRORS Thomas J. Richardson* and Jonathan L. Slack Building Technologies Department Environmental Energy Technologies Division Lawrence Berkeley National Laboratory Berkeley, California 94720, USA

200

Argonne Tribology Laboratory Photo Tour  

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

Laboratory Photo Tour Laboratory Photo Tour Engineers use Argonne's Tribology Laboratory to conduct research on advanced tribological systems (surface engineered materials, lubricants, fuels and fuel/lubricant additives) for use in aggressive environments. The Lab's "toolbox" includes the following: Nanoindenter Nanoindenter This Hysitron brand surface characterization tool is used to obtain accurate elastic modulus and hardness measurements of thin-film and bulk materials on the nanometer and micrometer level. In this method a diamond stylus is pressed against the sample surface and the force and distance is measured. The modulus is related to the slope of the force/distance unloading curve, and the hardness is related to the projected angle of contact and applied load. In addition, the tool can be used to obtain high-resolution topographic images of the sample surface. Download high resolution image.

Note: This page contains sample records for the topic "mirror experiment photo" 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

Symmetry tests in photo-pion production  

SciTech Connect (OSTI)

Small angle electron scattering with intense electron beams opens up the possibility of performing almost real photon induced reactions with thin, polarized hydrogen and few body targets, allowing for the detection of low energy charged particles. This promises to be much more effective than conventional photon tagging techniques. For photo-pion reactions some fundamental new possibilities include: tests of charge symmetry in the N-N system by measurement of the neutron-neutron scattering length a{sub nn} in the and ggrD ? ?{sup +}nn reaction; tests of isospin breaking due to the mass difference of the up and down quarks; measurements with polarized targets are sensitive to ?N phase shifts and will test the validity of the Fermi-Watson (final state interaction) theorem. All of these experiments will test the accuracy and energy region of validity of chiral effective theories.

Bernstein, A. M., E-mail: bernstein@mit.edu [Physics Dept. and Laboratory for Nuclear Science Massachusetts Institute of Technology Cambridge MA. 02139 (United States)

2013-11-07T23:59:59.000Z

202

Complete pseudoscalar photo-production measurements  

SciTech Connect (OSTI)

Investigations on N* production generally face large t- and u-channel background and broad, overlapping resonances. In order to disentangle the large variety of contributions, it is necessary to employ not only unpolarized cross section data, but also polarization data. Recent photo-production experiments focus on the extraction of double-polarization observables using linearly and circularly polarized photon beams and longitudinally and transversely polarized targets. Moreover, thanks to the self-analyzing properties of {Lambda} and {Sigma}{sup {+-}}, it has become feasible to extract all 15 polarization observables for these channels. Preliminary double-polarization data from Jefferson Lab for the reaction {gamma}p {yields} K{sup +}{Lambda} underline the importance of spin observables to constrain the partial-wave analysis of this channel.

Franz Klein

2012-04-01T23:59:59.000Z

203

Status and development of magnetic mirror systems for nuclear testing applications  

SciTech Connect (OSTI)

Several system studies have concluded that the small size and steady-state nature of magnetic mirror systems provide attractive features of nuclear testing applications such as blanket testing, fissile fuel production, tritium production, or decontamination of high-level radioactive nuclear reactor wastes. A summary of the data base is presented, and next-generation experiments that could be carried out to explore plasma physics issues associated with the production of high neutron fluxes in magnetic mirror configurations are described.

Simonen, T.C.; Futch, A.H.; Kaiser, T.B.

1988-09-01T23:59:59.000Z

204

Buildup studies of a tandem mirror reactor with inboard thermal barriers  

SciTech Connect (OSTI)

The build-up and quasi-steady state phases of the operation of the tandem mirror experiment, TMX, and of a tandem mirror machine with inboard thermal barriers, MFTF-B, have been simulated using a fluid model of the central cell and plug plasmas. The fluid model incorporates classical radial transport, three-dimensional cold gas transport in cylindrical geometry, and neutral beam transport corrected for finite-Larmor-orbit effects in both the central cell and yin yang end plugs.

Gryczkowski, G.E.; Gilmore, J.M.

1980-10-09T23:59:59.000Z

205

Deformable mirror for short wavelength applications  

DOE Patents [OSTI]

A deformable mirror compatible with short wavelength (extreme ultraviolet) radiation that can be precisely controlled to nanometer and subnanometer accuracy is described. Actuators are coupled between a reaction plate and a face plate which has a reflective coating. A control system adjusts the voltage supplied to the actuators; by coordinating the voltages supplied to the actuators, the reflective surface of the mirror can be deformed to correct for dimensional errors in the mirror or to produce a desired contour.

Chapman, Henry N. (2417 Kilkare Rd., Sunol, CA 94586); Sweeney, Donald W. (5020 Canyon Crest Dr., San Ramon, CA 94583)

1999-01-01T23:59:59.000Z

206

Cryogenic wavefront correction using membrane deformable mirrors  

Science Journals Connector (OSTI)

Micro-machined membrane deformable mirrors (MMDMs) are being evaluated for their suitability as wavefront correctors at cryogenic temperatures. Presented here are experimental...

Dyson, Harold; Sharples, Ray; Dipper, N; Vdovin, Gleb

2001-01-01T23:59:59.000Z

207

Miniature Kinematic Mirror Mount for UHV Service  

Science Journals Connector (OSTI)

A miniature kinematic mount allows adjustment of mirror pointing inside ultrahigh vacuum (UHV) by rotating finely threaded screws outside of vacuum. The mount assembly is less than...

Havstad, Mark A; McLean, William; Lewis, Rebecca C

1995-01-01T23:59:59.000Z

208

POLYMERIC MIRROR FILMS: DURABILITY IMPROVEMENT AND IMPLEMENTATION...  

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

Impact Test Methods Corrosion Coating failure Edge sealing failure Mirror graying Loss of reflectivity Damp heat Outdoor exposure Abrasion Installation Windborne sand Low...

209

Photo of the Week: July 6, 2012 | Department of Energy  

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

Photo of the Week: July 6, 2012 Photo of the Week: July 6, 2012 Photo of the Week: July 6, 2012 July 6, 2012 - 1:31pm Addthis More than 200 Fermilab researchers and staffers crowded into an auditorium at 2 a.m. EDT July 4 and waited for the latest announcement regarding the Higgs boson. When CERN Director-General Rolf-Dieter Heuer said the words - "I think we have it" – the Fermilab crowd erupted into applause. Fermi National Accelerator Laboratory and Brookhaven National Laboratory are the host laboratories for the U.S. contingents of the Large Hadron Collider (LHC) experiments that found the Higgs boson-like particle. They and researchers from Argonne National Laboratory, Lawrence Berkeley National Laboratory and SLAC National Accelerator Laboratory are among the 1,700 scientists, engineers, technicians and graduate students from the United States that helped design, build and operate the LHC accelerator and particle detectors, and analyze the data from the collisions. Read the story: The Last Piece of the Puzzle: Celebrating the Higgs Boson | Photo courtesy of Fermilab

210

Neutrino nuclear response and photo nuclear reaction  

E-Print Network [OSTI]

Photo nuclear reactions are shown to be used for studying neutrino/weak nuclear responses involved in astro-neutrino nuclear interactions and double beta decays. Charged current weak responses for ground and excited states are studied by using photo nuclear reactions through isobaric analog states of those states, while neutral current weak responses for excited states are studied by using photo nuclear reactions through the excited states. The weak interaction strengths are studied by measuring the cross sections of the photo nuclear reactions, and the spin and parity of the state are studied by measuring angular correlations of particles emitted from the photo nuclear reactions. Medium-energy polarized photons obtained from laser photons scattered off GeV electrons are very useful. Nuclear responses studied by photo nuclear reactions are used to evaluate neutrino/weak nuclear responses, i.e. nuclear beta and double beta matrix elements and neutrino nuclear interactions, and to verify theoretical calculations for them.

H. Ejiri; A. I. Titov; M. Boswell; A. Young

2013-11-10T23:59:59.000Z

211

Photo-switchable membrane and method  

DOE Patents [OSTI]

Switchable gas permeation membranes in which a photo-switchable low-molecular-weight liquid crystalline (LC) material acts as the active element, and a method of making such membranes. Different LC eutectic mixtures were doped with mesogenic azo dyes and infused into track-etched porous membranes with regular cylindrical pores. Photo-induced isothermal phase changes in the imbibed mesogenic material afforded large, reversible changes in the permeability of the photo-switchable membrane to nitrogen. For example, membranes imbibed with a photo-switchable cyanobiphenyl LC material demonstrated low permeability in the nematic state, while the photo-generated isotropic state demonstrated a 16.times.-greater sorption coefficient. Both states obey a high linear sorption behavior in accordance with Henry's Law. In contrast, membranes imbibed with a photo-switchable phenyl benzoate LC material showed the opposite permeability behavior to the biphenyl-imbibed membrane, along with nonlinear sorption behavior.

Marshall, Kenneth L; Glowacki, Eric

2013-05-07T23:59:59.000Z

212

Simple model of photo acoustic system for greenhouse effect  

E-Print Network [OSTI]

The simple theoretical basis for photo acoustic (PA) system for studying infrared absorption properties of greenhouse gases is constructed. The amplitude of sound observed in PA depends on the modulation frequency of light pulse. Its dependence can be explained by our simple model. According to this model, sound signal has higher harmonics. The theory and experiment are compared in third and fifth harmonics by spectrum analysis. The theory has the analogy with electric circuits. This analogy helps students for understanding the PA system.

Fukuhara, Akiko; Ogawa, Naohisa

2010-01-01T23:59:59.000Z

213

Experiences  

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

Experiences Experiences with 100Gbps Network Applications Mehmet Balman, Eric Pouyoul, Yushu Yao, E. Wes Bethel Burlen Loring, Prabhat, John Shalf, Alex Sim, and Brian L. Tierney Lawrence Berkeley National Laboratory One Cyclotron Road Berkeley, CA, 94720, USA {mbalman,epouyoul,yyao,ewbethel,bloring,prabhat,jshalf,asim,btierney}@lbl.gov ABSTRACT 100Gbps networking has finally arrived, and many research and educational institutions have begun to deploy 100Gbps routers and services. ESnet and Internet2 worked together to make 100Gbps networks available to researchers at the Supercomputing 2011 con- ference in Seattle Washington. In this paper, we describe two of the first applications to take advantage of this network. We demon- strate a visualization application that enables remotely located sci- entists to gain insights from large datasets. We also demonstrate climate

214

Photo of the Week: The Daya Bay Antineutrino Detector | Department of  

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

Photo of the Week: The Daya Bay Antineutrino Detector Photo of the Week: The Daya Bay Antineutrino Detector Photo of the Week: The Daya Bay Antineutrino Detector September 7, 2012 - 3:07pm Addthis While they might look like drops of water or soap bubbles, these colorful figures are actually photomultiplier tubes that line the walls of the Daya Bay neutrino detector. Neutrinos and antineutrinos are neutral particles produced in nuclear beta decay when neutrons turn into protons. This experiment aims to measure the final unknown mixing angle that describes how neutrinos oscillate. The tubes are designed to amplify and record the faint flashes of light that signify an antineutrino interaction. Lawrence Berkeley and Brookhaven National Labs and a number of physicists at U.S. universities played leading roles in the Daya Bay experiment, from designing the detectors all the way through to analyzing the data gathered. | Photo by Roy Kaltschmidt, LBNL.

215

2014 Earth Day Photo Contest Winners  

Office of Environmental Management (EM)

2014 Earth Day Photo Contest Winners COMMUNITY: "Edison Home" by Gary Hartman SUSTAINABILITY: "Oak Alley" by Wade Sickinger ALTERNATIVE ENERGY: "Windmill Ablaze at Sunset" by Leroy...

216

Transmission/Photo Gallery | Open Energy Information  

Open Energy Info (EERE)

Colorado transmission 2.jpg Bird diverters.jpg Transmission insulators.jpg Retrieved from "http:en.openei.orgwindex.php?titleTransmissionPhotoGallery&oldid687595...

217

Photo-Electrons and Negative Ions  

Science Journals Connector (OSTI)

2 December 1931 research-article Photo-Electrons and Negative Ions E. M. Wellish The Royal Society is collaborating with JSTOR to digitize, preserve, and extend...

1931-01-01T23:59:59.000Z

218

Photo-effects in iodine single crystals  

E-Print Network [OSTI]

Effects 29 29 29 34 34 4D CHAPTER V. DISCUSSIGN A. Dark EMF Values B. photo EMP Spectral Response D. Tenperature Dependence 42 42 44 45 APPENDIX A . Tabulation of Driginal Experlnsntal Data B. Changes in Dark end I hoto EMP... with Tenperature 50 58 54 REFKRENCES LIST OP TABLES Table Effects of various gaseous amhients on dark and photo emf values Page 31 II Effects of cooling on dark and photo emf values 33 vi LIST OF PIGVRES Figure Possible photo-transitions in sn...

Rieves, John Michael

2012-06-07T23:59:59.000Z

219

Photo-Chemical Researches. Part II. Phenomena of Photo-Chemical Induction  

Science Journals Connector (OSTI)

1 January 1857 research-article Photo-Chemical Researches. Part II. Phenomena of Photo-Chemical Induction Professor Bunsen Henry Enfield Roscoe The Royal Society is collaborating with JSTOR to digitize, preserve, and extend access to Philosophical...

1857-01-01T23:59:59.000Z

220

Photo-Chemical Researches. -- Part II. Phenomena of Photo-Chemical Induction.  

Science Journals Connector (OSTI)

1856-1857 research-article Photo-Chemical Researches. -- Part II. Phenomena of Photo-Chemical Induction. Prof. Bunsen Henry Enfield Roscoe The Royal Society is collaborating with JSTOR to digitize, preserve, and extend access to Proceedings...

1856-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "mirror experiment photo" 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

The ASTRI Project: a mini-array of dual-mirror small Cherenkov telescopes for CTA  

E-Print Network [OSTI]

ASTRI is a flagship project of the Italian Ministry of Education, University and Research, which aims to develop an end-to-end prototype of the CTA small-size telescope. The proposed design is characterized by a dual-mirror Schwarzschild-Couder configuration and a camera based on Silicon photo-multipliers, two challenging but innovative technological solutions which will be adopted for the first time on a Cherenkov telescope. Here we describe the current status of the project, the expected performance and the possibility to realize a mini-array composed by a few small-size telescopes, which shall be placed at the final CTA Southern Site.

La Palombara, N; Antonelli, L A; Bastieri, D; Bellassai, G; Belluso, M; Bigongiari, C; Billotta, S; Biondo, B; Bonanno, G; Bonnoli, G; Bruno, P; Bulgarelli, A; Canestrari, R; Capalbi, M; Caraveo, P; Carosi, A; Cascone, E; Catalano, O; Cereda, M; Conconi, P; Conforti, V; Cusumano, G; De Caprio, V; De Luca, A; Di Paola, A; Di Pierro, F; Fantinel, D; Fiorini, M; Fugazza, D; Gardiol, D; Ghigo, M; Gianotti, F; Giarrusso, S; Giro, E; Grillo, A; Impiombato, D; Incorvaia, S; La Barbera, A; La Parola, V; La Rosa, G; Lessio, L; Leto, G; Lombardi, S; Lucarelli, F; Maccarone, M C; Malaguti, G; Malaspina, G; Mangano, V; Marano, D; Martinetti, E; Millul, R; Mineo, T; Mist, A; Morello, C; Morlino, G; Panzera, M R; Pareschi, G; Rodeghiero, G; Romano, P; Russo, F; Sacco, B; Sartore, N; Schwarz, J; Segreto, A; Sironi, G; Sottile, G; Stamerra, A; Strazzeri, E; Stringhetti, L; Tagliaferri, G; Testa, V; Timpanaro, M C; Toso, G; Tosti, G; Trifoglio, M; Vallania, P; Vercellone, S; Zitelli, V

2013-01-01T23:59:59.000Z

222

Photo-Neutron Sources and the Energy of the Photo-Neutrons  

Science Journals Connector (OSTI)

In a preliminary study photo-neutrons were observed to be produced by the ?-rays from Na24, Mn56, Ga72, As76, and La140 when these artificially radioactive isotopes were placed in D2O or Be; F20, Al28, Cl38, In116, and Sb124 produced neutrons only in Be. The first group of isotopes must have ?-rays with energy higher than 2.18 Mev, and the second group must have ?-rays greater than 1.63 Mev but less than 2.18 Mev. No photo-neutrons were observed from Co60, Cu64, Ag (225 day -life), Pr142, Eu151, Dy165, Ta182, Re188, Ir (19 hours -life), and Au198 in Be; the intense ?-rays from these isotopes must have energies less than 1.63 Mev. In a second experiment the energy of the photo-neutrons from nine of these sources was determined by measuring the hydrogen scattering cross section of the emitted neutrons. Seven, of the sources seem to emit homogeneous groups of neutrons; they are: Sb+Be, Ga+D2O, La+D2O, Mn+D2O, Na+D2O, La+Be, and Na+Be with neutron energies 0.024, 0.13, 0.13, 0.22, 0.22, 0.62, and 0.83 Mev, respectively, for the particular sized sources studied. Mn+Be emits three groups of neutrons of different energies, but more than 80 percent of the neutrons seem to be in a group at 0.14 Mev. The energy of the ?-rays calculated to produce neutrons of these energies are: for Na24, 2.74 Mev; for Mn56, 1.81 and 2.7 Mev (a third ?-ray is present); for Ga72, 2.50 Mev (at least one other ?-ray is present with an energy between 2.2 and 1.63 Mev); for Sb124, 1.67 Mev; and for La140, 2.49 Mev. The total neutron cross section of carbon is also given for seven of these photo-neutron sources.

A. Wattenberg

1947-04-15T23:59:59.000Z

223

Plasma debris sputter resistant x-ray mirror  

Science Journals Connector (OSTI)

A diamond-like carbon (DLC) mirror, used as a grazing incident mirror in a plasma x-ray source, exhibits a high resistance to plasma debris sputtering. Good mirror reflectivity at a...

Amano, Sho; Inoue, Tomoaki; Harada, Tetsuo

2013-01-01T23:59:59.000Z

224

Cryogenic optical testing of sandwich-type silicon carbide mirrors  

Science Journals Connector (OSTI)

The experimental cryogenic performance of 160-mm-diameter silicon carbide (SiC) mirrors, one of which, a 700-mm-diameter mirror, is to be used as a primary mirror of the Japanese...

Kaneda, Hidehiro; Onaka, Takashi; Kawada, Mitsunobu; Murakami, Hiroshi

2003-01-01T23:59:59.000Z

225

Philosophy and the Mirror of Nature  

E-Print Network [OSTI]

Philosophy and the Mirror of Nature Richard Rorty Philosophy and the Mir- ror of Nature hit has since gone on to be- come one of its all-time best-sellers in philosophy. Rorty argued that, repairing, and polishing the mirror-- belongs to philosophy. Rorty's book was a powerful critique

Landweber, Laura

226

LED structure with enhanced mirror reflectivity  

DOE Patents [OSTI]

Embodiments of the present invention are generally related to LED chips having improved overall emission by reducing the light-absorbing effects of barrier layers adjacent mirror contacts. In one embodiment, a LED chip comprises one or more LEDs, with each LED having an active region, a first contact under the active region having a highly reflective mirror, and a barrier layer adjacent the mirror. The barrier layer is smaller than the mirror such that it does not extend beyond the periphery of the mirror. In another possible embodiment, an insulator is further provided, with the insulator adjacent the barrier layer and adjacent portions of the mirror not contacted by the active region or by the barrier layer. In yet another embodiment, a second contact is provided on the active region. In a further embodiment, the barrier layer is smaller than the mirror such that the periphery of the mirror is at least 40% free of the barrier layer, and the second contact is below the first contact and accessible from the bottom of the chip.

Bergmann, Michael; Donofrio, Matthew; Heikman, Sten; Schneider, Kevin S; Haberern, Kevin W; Edmond, John A

2014-04-01T23:59:59.000Z

227

Orbit averaged radial buildup code for tandem mirror geometry  

SciTech Connect (OSTI)

The radial Fokker-Planck (RFP) model of A. Futch was modified to treat plasma buildup in the tandem mirror plug and center cell with a self-consistent model (TOARBUC). Two major changes have been made to the original version of this code. First, the center cell is treated as having separate electron and ion confining potentials with the ion potential having the opposite sign of that in a conventional mirror. Second, a two-electron-temperature treatment derived by R. Cohen was included in the present model to allow the plug and center cell to have different T/sub e/'s as observed in the experiment. The following sections explain these changes in greater detail.

Campbell, M.; Futch, A.H.

1981-01-22T23:59:59.000Z

228

Alternative Astronomy: Experiment in Self-Sufficiency Blossoms  

Science Journals Connector (OSTI)

...Through the auspices of Martin Schwarzschild of Princeton, they were able...unusually high-quality 36-inch mirror, in-tended as a backup for...never used. The loan of the mirror propelled the group to upgrade...architecture of the 36-inch mirror. In the NASA experiment for...

ALLEN L. HAMMOND

1977-09-23T23:59:59.000Z

229

Concentrating Solar Power: Energy from Mirrors  

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

Mirror mirror on the wall, what's the Mirror mirror on the wall, what's the greatest energy source of all? The sun. Enough energy from the sun falls on the Earth everyday to power our homes and businesses for almost 30 years. Yet we've only just begun to tap its potential. You may have heard about solar electric power to light homes or solar thermal power used to heat water, but did you know there is such a thing as solar thermal-electric power? Electric utility companies are using mirrors to concentrate heat from the sun to produce environmentally friendly electricity for cities, especially in the southwestern United States. The southwestern United States is focus- ing on concentrating solar energy because it's one of the world's best areas for sun- light. The Southwest receives up to twice the sunlight as other regions in the coun-

230

Photo-oxides of Carcinogenic Hydrocarbons  

Science Journals Connector (OSTI)

... are involved in the biological action of carcinogenic hydrocarbons, we have attempted to isolate the photo-oxides of some of these hydrocarbons. Such ... -oxides of some of these hydrocarbons. Such photo-oxides would naturally be insoluble in water and hence would represent merely one stage in ...

J. W. COOK; R. MARTIN; E. M. F. ROE

1939-06-17T23:59:59.000Z

231

Modeling the World from Internet Photo Collections  

Science Journals Connector (OSTI)

There are billions of photographs on the Internet, comprising the largest and most diverse photo collection ever assembled. How can computer vision researchers exploit this imagery? This paper explores this question from the standpoint of 3D scene modeling ... Keywords: 3D navigation, 3D scene analysis, Internet imagery, Photo browsers, Structure from motion

Noah Snavely; Steven M. Seitz; Richard Szeliski

2008-11-01T23:59:59.000Z

232

Range Monitoring with Photo-points  

E-Print Network [OSTI]

Photo-points provide a way for owners/managers to monitor rangeland health with a minimum of time and expense. This publication explains when, where and how often to photograph rangeland points, how to set up a photo point, and how to interpret...

McGinty, Allan; White, Larry D.

1998-08-31T23:59:59.000Z

233

High voltage photo switch package module  

DOE Patents [OSTI]

A photo-conductive switch package module having a photo-conductive substrate or wafer with opposing electrode-interface surfaces, and at least one light-input surface. First metallic layers are formed on the electrode-interface surfaces, and one or more optical waveguides having input and output ends are bonded to the substrate so that the output end of each waveguide is bonded to a corresponding one of the light-input surfaces of the photo-conductive substrate. This forms a waveguide-substrate interface for coupling light into the photo-conductive wafer. A dielectric material such as epoxy is then used to encapsulate the photo-conductive substrate and optical waveguide so that only the metallic layers and the input end of the optical waveguide are exposed. Second metallic layers are then formed on the first metallic layers so that the waveguide-substrate interface is positioned under the second metallic layers.

Sullivan, James S; Sanders, David M; Hawkins, Steven A; Sampayan, Stephen E

2014-02-18T23:59:59.000Z

234

Photo-induced Valence Tautomerism in Co Complexes  

Science Journals Connector (OSTI)

Photo-induced Valence Tautomerism in Co Complexes ... His research interests include the development of photomagnets and phototunable photonic crystals and the design of supramolecules exhibiting photo-bistability. ... Photo-induced Valence Tautomerism in Mononuclear Compounds ...

Osamu Sato; Aili Cui; Ryotaro Matsuda; Jun Tao; Shinya Hayami

2007-04-11T23:59:59.000Z

235

PHOTO OPTION CURRICULUM (FOR STUDENTS ENTERING FALL, 2011 OR LATER)  

E-Print Network [OSTI]

PHOTO OPTION CURRICULUM (FOR STUDENTS ENTERING FALL, 2011 OR LATER) NOTE ON REVERSE. GATE REQUIREMENTS FOR PHOTO OPTION: FILM 100IH ­ Introduction to Film)..................................................................3 PHOTO OPTION REQUIREMENTS (GATE REQUIRED FOR MOST COURSES): PHOT 255

Dyer, Bill

236

Photo Gallery | ANSER Center | Argonne-Northwestern National...  

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

Photo Gallery Home > News & Events > Photo Gallery 2014 2013 2012 2011 ANSER 2014 Solar Fuels SymposiumPhotos from the 2014 ANSER Solar Fuels Symposium, held May 22-23 at...

237

University Information Technology Services UITS Photo Policy September 16, 2010 Rev 1 UITS Photo and Bio Policy  

E-Print Network [OSTI]

University Information Technology Services · UITS Photo Policy · September 16, 2010 · Rev 1 UITS Photo and Bio Policy University Information Technology Services developed a set of requirements and recommendations regarding employee photos and bios. Internal View

Watkins, Joseph C.

238

Photo of the Week: Rocky Flats Wildlife Refuge | Department of...  

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

Competition. | Photo courtesy of Oak Ridge National Laboratory. Photo of the Week: I, Robot Olympics Solar Junction, in partnership with NREL, has developed solar cells that...

239

Photo of the Week: July 13, 2012 | Department of Energy  

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

Competition. | Photo courtesy of Oak Ridge National Laboratory. Photo of the Week: I, Robot Olympics Solar Junction, in partnership with NREL, has developed solar cells that...

240

Institute of Photo Electronic Thin Film Devices and Technology...  

Open Energy Info (EERE)

Institute of Photo Electronic Thin Film Devices and Technology of Nankai University Jump to: navigation, search Name: Institute of Photo-Electronic Thin Film Devices and Technology...

Note: This page contains sample records for the topic "mirror experiment photo" 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

Photo-Polarography with a Flash-Lamp  

Science Journals Connector (OSTI)

... PHOTO-POLAROGRAPHY, originating from the synthesis of ... -POLAROGRAPHY, originating from the synthesis of photo-chemistry and polarography, records photokinetic-currents caused by ...

H. BERG; H. SCHWEISS

1961-09-23T23:59:59.000Z

242

2014 Offshore Wind Market & Economic Analysis Cover Photo | Department...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

4 Offshore Wind Market & Economic Analysis Cover Photo 2014 Offshore Wind Market & Economic Analysis Cover Photo Navigant 2014 Offshore Wind Market and Economic Analysis.JPG More...

243

Best of 2013: Our Favorites from Photo of the Week | Department of Energy  

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

Best of 2013: Our Favorites from Photo of the Week Best of 2013: Our Favorites from Photo of the Week Best of 2013: Our Favorites from Photo of the Week January 2, 2014 - 11:09am Addthis Controlling Chaos with Magnetic Fields 1 of 12 Controlling Chaos with Magnetic Fields This artistic rendition of "spin vortices" illustrates tiny magnetic vortices that spin according to the polarization of each disk's vortex core. At Argonne National Laboratory, scientists are using alternating magnetic fields to control the behavior of these spin vortices, which are small dots made of iron and nickel. The experiments will help to create new, more efficient magnetic devices -- like the random access memory (RAM) in the device you are using to look at this very photo. http://1.usa.gov/WnpG60 Image: Sander Munster, Dresden University of Technology.

244

Best of 2013: Our Favorites from Photo of the Week | Department of Energy  

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

Best of 2013: Our Favorites from Photo of the Week Best of 2013: Our Favorites from Photo of the Week Best of 2013: Our Favorites from Photo of the Week January 2, 2014 - 11:09am Addthis Controlling Chaos with Magnetic Fields 1 of 12 Controlling Chaos with Magnetic Fields This artistic rendition of "spin vortices" illustrates tiny magnetic vortices that spin according to the polarization of each disk's vortex core. At Argonne National Laboratory, scientists are using alternating magnetic fields to control the behavior of these spin vortices, which are small dots made of iron and nickel. The experiments will help to create new, more efficient magnetic devices -- like the random access memory (RAM) in the device you are using to look at this very photo. http://1.usa.gov/WnpG60 Image: Sander Munster, Dresden University of Technology.

245

Best of 2013: Favorites from Photo of the Week | Department of Energy  

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

Best of 2013: Favorites from Photo of the Week Best of 2013: Favorites from Photo of the Week Best of 2013: Favorites from Photo of the Week Addthis Controlling Chaos with Magnetic Fields 1 of 12 Controlling Chaos with Magnetic Fields This artistic rendition of "spin vortices" illustrates tiny magnetic vortices that spin according to the polarization of each disk's vortex core. At Argonne National Laboratory, scientists are using alternating magnetic fields to control the behavior of these spin vortices, which are small dots made of iron and nickel. The experiments will help to create new, more efficient magnetic devices -- like the random access memory (RAM) in the device you are using to look at this very photo. http://1.usa.gov/WnpG60 Image: Sander Munster, Dresden University of Technology.

246

Particle Deconfinement in a Bent Magnetic Mirror  

SciTech Connect (OSTI)

Coils misalignment in a magnetic mirror can produce additional particle transport. The magnetic field non axi-symmetry is responsible for radial and longitudinal drifts in a way much similar to the neo-classical transport in a tandem mirror cell distorted by end plugs. Accordingly, a regime exhibiting large radial displacements - similar to the resonant regime in tandem mirrors - can be obtained by confining ions azimuthally, for example by means of a properly tuned radial electric field. Because of the mass dependence of the magnetic field non-homogeneity drift velocities, the azimuthal trapping is mass specific, allowing in principle the filtering of a specific species based on its mass.

Renaud Gueroult and Nathaniel J. Fisch

2012-09-06T23:59:59.000Z

247

Photo-electric Conduction in Selenium  

Science Journals Connector (OSTI)

Variation with light intensity of the photo-current in selenium.A selenium cell is described which gives a photo-current of 10 ma. for a difference of potential of 100 volts and an illumination of 100 foot-candles. The sensitiveness ratio between the currents under light and dark conditions is 100. The characteristics of the cell are very constant. The experimental results establish the existence of a linear relation between the square of the photo-current and the light intensity. It is pointed out that this result substantiates the conclusion that the photo-conduction in selenium is due to a photo-electric liberation of electrons rather than to an allotropic change from an insulating to a conducting form of selenium.Effect of temperature on the photo-conductivity of selenium.Under dark conditions the current through a cell immersed in liquid air dropped in 15 sec. to 35 percent of its value at room temperature, and in 10 min. to 0.000046 percent. When the same cell was illuminated with 100 foot-candles and immersed in liquid air, the current increased for 8 min. to about 1.8 times its value at room temperature and then decreased until after 3 hours its value was 82 percent of its value at room temperature. It is concluded that the mechanism of the current conduction under dark conditions is entirely different from that of the photo-conduction.

R. J. Piersol

1927-11-01T23:59:59.000Z

248

Photo-Alignment Behavior of Mesoporous Silica Thin Films Synthesized on a Photo-Cross-Linkable Polymer Film  

Science Journals Connector (OSTI)

Photo-Alignment Behavior of Mesoporous Silica Thin Films Synthesized on a Photo-Cross-Linkable Polymer Film ... Photo-aligning and micropatterning techniques for mesochannels of a silica thin film using a photo-cross-linkable polymer film with a cinnamoyl group are proposed. ... We propose herein a new photo-aligning and micropatterning technique for mesochannels of a silica thin film using a photo-cross-linkable polymer film with a cinnamoyl group. ...

Haruhiko Fukumoto; Shusaku Nagano; Nobuhiro Kawatsuki; Takahiro Seki

2006-02-11T23:59:59.000Z

249

Modeling photo-detectors in quantum optics  

E-Print Network [OSTI]

Photo-detection plays a fundamental role in experimental quantum optics and is of particular importance in the emerging field of linear optics quantum computing. Present theoretical treatment of photo-detectors is highly idealized and fails to consider many important physical effects. We present a physically motivated model for photo-detectors which accommodates for the effects of finite resolution, bandwidth and efficiency, as well as dark-counts and dead-time. We apply our model to two simple well known applications, which illustrates the significance of these characteristics.

Peter P. Rohde; Timothy C. Ralph

2005-11-10T23:59:59.000Z

250

LCLS X-ray mirror measurements using a large aperture visible light interferometer  

SciTech Connect (OSTI)

Synchrotron or FEL X-ray mirrors are required to deliver an X-ray beam from its source to an experiment location, without contributing significantly to wave front distortion. Accurate mirror figure measurements are required prior to installation to meet this intent. This paper describes how a 300 mm aperture phasing interferometer was calibrated to <1 nm absolute accuracy and used to mount and measure 450 mm long flats for the Linear Coherent Light Source (LCLS) at Stanford Linear Accelerator Center. Measuring focus mirrors with an interferometer requires additional calibration, because high fringe density introduces systematic errors from the interferometer's imaging optics. This paper describes how these errors can be measured and corrected. The calibration approaches described here apply equally well to interferometers larger than 300 mm aperture, which are becoming more common in optics laboratories. The objective of this effort was to install LCLS flats with < 10 nm of spherical curvature, and < 2 nm rms a-sphere. The objective was met by measuring the mirrors after fabrication, coating and mounting, using a 300 mm aperture phasing interferometer calibrated to an accuracy < 1 nm. The key to calibrating the interferometer accurately was to sample the error using independent geometries that are available. The results of those measurements helped identify and reduce calibration error sources. The approach used to measure flats applies equally well to focus mirrors, provided an additional calibration is performed to measure the error introduced by fringe density. This calibration has been performed on the 300 mm aperture interferometer, and the measurement correction was evaluated for a typical focus mirror. The 300 mm aperture limitation requires stitching figure measurements together for many X-ray mirrors of interest, introducing another possible error source. Stitching is eliminated by applying the calibrations described above to larger aperture instruments. The authors are presently extending this work to a 600 mm instrument. Instruments with 900 mm aperture are now becoming available, which would accommodate the largest mirrors of interest.

McCarville, T; Soufli, R; Pivovaroff, M

2011-03-02T23:59:59.000Z

251

Lenses and Mirrors for Solar Energy  

Science Journals Connector (OSTI)

When the design simulation of the nonimaging Fresnel lens solar concentrator was completed, we thought of the lens as being a direct competitor to the compound parabolic concentrator (CPC), which is a mirror-b...

Dr. Ralf Leutz; Dr. Akio Suzuki

2001-01-01T23:59:59.000Z

252

Two-mirror Schwarzschild aplanats: Basic relations  

Science Journals Connector (OSTI)

The theory of aplanatic two-mirror telescopes developed by Karl Schwarzschild in 1905 is shown to lead to ... extended to ascertain the image quality in exact Schwarzschild aplanats. A comparison of Schwarzschild

V. Yu. Terebizh

2005-02-01T23:59:59.000Z

253

Mirror Advanced Reactor Study interim design report  

SciTech Connect (OSTI)

The status of the design of a tenth-of-a-kind commercial tandem-mirror fusion reactor is described at the midpoint of a two-year study. When completed, the design is to serve as a strategic goal for the mirror fusion program. The main objectives of the Mirror Advanced Reactor Study (MARS) are: (1) to design an attractive tandem-mirror fusion reactor producing electricity and synfuels (in alternate versions), (2) to identify key development and technology needs, and (3) to exploit the potential of fusion for safety, low activation, and simple disposal of radioactive waste. In the first year we have emphasized physics and engineering of the central cell and physics of the end cell. Design optimization and trade studies are continuing, and we expect additional modifications in the end cells to further improve the performance of the final design.

Not Available

1983-04-01T23:59:59.000Z

254

The mirror effect: Virginia Woolf's war writings  

E-Print Network [OSTI]

THE MIRROR EFFECT: VIRGINIA WOOLF'S WAR WRITINGS A Semor Honors Thesis By MARCIA WILKENS MURCHISON Submitted to the Office of Honors Programs & Academic Scholarships Texas A&M University In partial fulfillment of the requirements... of the UNIVERSITY UNDERGRADUATE RESEARCH FELLOWS April 2000 Group: Humanities THE MIRROR EFFECT: VIRGINIA WOOLF'S WAR WRITINGS A Senior Honors Thesis By MARCIA WILKENS MURCHISON Submitted to the Office of Honors Programs & Academic Scholarships Texas Ak...

Murchison, Marcia Wilkens

2013-02-22T23:59:59.000Z

255

Motorized control for mirror mount apparatus  

DOE Patents [OSTI]

A motorized control and automatic braking system for adjusting mirror mount apparatus is disclosed. The motor control includes a planetary gear arrangement to provide improved pitch adjustment capability while permitting a small packaged design. The motor control for mirror mount adjustment is suitable for laser beam propagation applications. The brake is a system of constant contact, floating detents which engage the planetary gear at selected between-teeth increments to stop rotation instantaneously when the drive motor stops.

Cutburth, Ronald W. (Tracy, CA)

1989-01-01T23:59:59.000Z

256

NETL: Gasification Systems Video, Images & Photos  

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

Video, Images, Photos Video, Images, Photos Gasification Systems Reference Shelf - Video, Images & Photos The following was established to show a variety of Gasification Technologies: Gasfication powerplant photo Gasification: A Cornerstone Technology (Mar 2008) Movie Icon Windows Media Video (WMV-26MB) [ view | download ] NETL is a leader in the science and technology of gasification - a process for the conversion of carbon-based materials such as coal into synthesis gas (syngas) that can be used to produce clean electrical energy, transportation fuels, and chemicals efficiently and cost-effectively using domestic fuel resources. Gasification is a cornerstone technology of 21st century zero emissions powerplants. Proposed APS Advanced Hydrogasification Process Proposed APS Advanced Hydrogasification Process* TRDU and Hot-Gas Vessel in the EERC Gasification Tower Transport reactor development unit

257

Photo-Disintegration of the Deuteron  

Science Journals Connector (OSTI)

A study of the photo-disintegration of the deuteron using a cloud chamber as a detector has been made for gamma-ray energies of 6.14 and 7.00 Mev from the F(p,?)O16* reaction. By observing the number of photo-disintegration protons and the number of electron pairs formed in the gas (CD4) of the cloud chamber, the ratio of the photo-disintegration cross section to the pair cross section is obtained. Assuming a calculated value for the pair cross section these data yield ?[D(?,p)n]=25.7(14percent P . E.)10-28 cm2 at an average gamma-ray energy of 6.55 Mev.A plot of the angular distribution of the photo-disintegration protons agrees, within statistical limits, with sin2?, though there may be a slight asymmetry in the forward direction.

J. A. Phillips; J. S. Lawson; Jr.; P. Gerald Kruger

1950-11-01T23:59:59.000Z

258

Event-centric Twitter photo summarization  

E-Print Network [OSTI]

We develop a novel algorithm based on spectral geometry that summarize a photo collection into a small subset that represents the collection well. While the definition for a good summarization might not be unique, we focus ...

Wen, Chung-Lin, S.M. Massachusetts Institute of Technology

2014-01-01T23:59:59.000Z

259

Photo-responsive liquid crystal block copolymers/  

E-Print Network [OSTI]

Photo-responsive liquid crystal polymers (LCP) which contain azobenzene moieties have gained interest for their ability to change properties by merely irradiating them with the correct wavelength of light in the appropriate ...

Petr, Michael Thomas

2012-01-01T23:59:59.000Z

260

Photo-electric Control in Industry  

Science Journals Connector (OSTI)

... made in standard sets called photo-electric relays, containing an amplifier circuit and a small contactor capable of making or breaking 15 amperes. An obvious application of this unit is ...

1937-11-27T23:59:59.000Z

Note: This page contains sample records for the topic "mirror experiment photo" 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

Neutron - Mirror Neutron Oscillations: How Fast Might They Be?  

E-Print Network [OSTI]

We discuss the phenomenological implications of the neutron (n) oscillation into the mirror neutron (n'), a hypothetical particle exactly degenerate in mass with the neutron but sterile to normal matter. We show that the present experimental data allow a maximal n-n' oscillation in vacuum with a characteristic time $\\tau$ much shorter than the neutron lifetime, in fact as small as 1 sec. This phenomenon may manifest in neutron disappearance and regeneration experiments perfectly accessible to present experimental capabilities and may also have interesting astrophysical consequences, in particular for the propagation of ultra high energy cosmic rays.

Zurab Berezhiani; Luis Bento

2005-07-03T23:59:59.000Z

262

Design of a Thermal Imaging Diagnostic Using 90-Degree, Off-Axis, Parabolic Mirrors  

SciTech Connect (OSTI)

Thermal imaging is an important, though challenging, diagnostic for shockwave experiments. Shock-compressed materials undergo transient temperature changes that cannot be recorded with standard (greater than ms response time) infrared detectors. A further complication arises when optical elements near the experiment are destroyed. We have designed a thermal-imaging system for studying shock temperatures produced inside a gas gun at Sandia National Laboratories. Inexpensive, diamond-turned, parabolic mirrors relay an image of the shocked target to the exterior of the gas gun chamber through a sapphire vacuum port. The 30005000-nm portion of this image is directed to an infrared camera which acquires a snapshot of the target with a minimum exposure time of 150 ns. A special mask is inserted at the last intermediate image plane, to provide dynamic thermal background recording during the event. Other wavelength bands of this image are split into high-speed detectors operating at 9001700 nm, and at 17003000 nm for timeresolved pyrometry measurements. This system incorporates 90-degree, off-axis parabolic mirrors, which can collect low f/# light over a broad spectral range, for high-speed imaging. Matched mirror pairs must be used so that aberrations cancel. To eliminate image plane tilt, proper tip-to-tip orientation of the parabolic mirrors is required. If one parabolic mirror is rotated 180 degrees about the optical axis connecting the pair of parabolic mirrors, the resulting image is tilted by 60 degrees. Different focal-length mirrors cannot be used to magnify the image without substantially sacrificing image quality. This paper analyzes performance and aberrations of this imaging diagnostic.

Malone, Robert M.; Becker, Steven A.; Dolan, Daniel H.; Hacking, Richard G.; Hickman, Randy J.; Kaufman, Morris I.; Stevens, Gerald D.; Turley, William D.

2006-09-01T23:59:59.000Z

263

Photo-Electric Ionization of Caesium Vapor  

Science Journals Connector (OSTI)

Measurement of photo-electric ionization in gases.The current from a filament, normally limited by space change, is increased by the presence of positive ions. As shown by Kingdon this effect may be greatly magnified if a small cathode is practically enclosed by the anode so that the ions are imprisoned. This method was used for the detection of photo-electric ionization. Besides possessing extreme sensitivity it is unaffected by photo-electric emission from the electrodes.Photo-electric effect in caesium vapor.The change in thermionic current with the unresolved radiation from a mercury arc was measured as functions of the applied voltage, filament temperature, and vapor pressure. Then the photo-electric effect as a function of wave-length was studied using a monochromatic illuminator to disperse light from the arc or a Mazda lamp. The ionization per unit flux was found to increase with increasing wave-length to a sharp maximum at the limit 1s=3184A of the principal series, as is required by the Bohr theory. For longer wave-lengths the ionization decreased to about 10 percent at 3400A. Photo-excitation. The simple theory does not admit of ionization by wave-lengths greater than 3184A but the data are in qualitative agreement with the hypothesis that such radiation produces excited atoms which upon collision with other atoms acquire sufficient additional energy to become ionized. Hence, unlike an x-ray limit, the photo-ionization effect for a valence electron is not sharply discontinuous at the true threshold for direct ionization.Photo-ionization photometer and intensitometer. A tube of the type described, with suitable gases for the range of wave-length involved, may be used as a photometer or may be calibrated to measure intensity of radiation directly.

Paul D. Foote and F. L. Mohler

1925-08-01T23:59:59.000Z

264

Personal Photo Enhancement Using Example Images Microsoft Research  

E-Print Network [OSTI]

12 Personal Photo Enhancement Using Example Images NEEL JOSHI Microsoft Research WOJCIECH MATUSIK describe a framework for improving the quality of personal photos by using a person's favorite photographs "good" and "bad" photos such that properties of the good examples can be used to correct a bad photo

Jaffe, Jules

265

Face Photo Retrieval by Sketch Example Hamed Kiani Galoogahi  

E-Print Network [OSTI]

Face Photo Retrieval by Sketch Example Hamed Kiani Galoogahi School of Computing National University of Singapore Singapore, 117417 tsim@comp.nus.edu.sg ABSTRACT Face photo-sketch matching has of matching face photo and sketch is difference of visual characteristics between face photo and sketch which

Sim, Terence

266

Flux: Enhancing Photo Organization through Interaction and Automation  

E-Print Network [OSTI]

Flux: Enhancing Photo Organization through Interaction and Automation Dominikus Baur, Otmar for digital photo collections, we pro- vide methods for organizing and sharing photos in a convenient manner of scalabil- ity, which is especially relevant for a real-world sized photo collection is tackled

267

Robust Photo Retrieval Using World Semantics Hugo Liu*, Henry Lieberman*  

E-Print Network [OSTI]

Robust Photo Retrieval Using World Semantics Hugo Liu*, Henry Lieberman* * MIT Media Laboratory Photos annotated with textual keywords can be thought of as resembling documents, and querying for photos motivated rather than conceptually motivated. In our photo domain, we propose a mechanism for robust

Lieberman, Henry

268

Treatment of effluents from wool dyeing process by photo-Fenton at solar pilot plant  

Science Journals Connector (OSTI)

Abstract The decolourization and mineralization of simulated wastewaters from wool dyeing tanks were investigated by Fenton and photo-Fenton processes. Yellow, red and blue dyebaths with azo-type and anthraquinone dyes and additives were selected as colored effluents. Photo-Fenton reaction was much more efficient than the respective dark reaction under identical experimental conditions. The effect of H2O2 and Fe(II) dosage and fractional or initial addition of these reagents on the photo-mineralization processes were studied and the optimal conditions found. Experiments at a pilot plant based on compound parabolic collectors (CPCs) confirmed that, under optimal conditions, 100% of color removal was obtained requiring low accumulated energy. No toxic effects on marine bacteria Vibrio fischeri were observed at the end of photo-Fenton treatment for all studied effluents. High concentrations of sodium acetate are used as additive in the wool dying process. HPLC and TOC analysis of the effluents after photo-Fenton process confirmed that the remaining organic carbon is due to the presence of acetates. The obtained results showed the feasibility of photo-Fenton process to achieve suitable water qualities for internal reuse.

M.J. Hernndez-Rodrguez; C. Fernndez-Rodrguez; J.M. Doa-Rodrguez; O.M. Gonzlez-Daz; D. Zerbani; J. Prez Pea

2014-01-01T23:59:59.000Z

269

Photo-ionization and residual electron effects in guided streamers  

SciTech Connect (OSTI)

Complementary experiments and numerical modeling reveal the important role of photo-ionization in the guided streamer propagation in helium-air gas mixtures. It is shown that the minimum electron concentration ?10{sup 8?}cm{sup ?3} is required for the regular, repeated propagation of the plasma bullets, while the streamers propagate in the stochastic mode below this threshold. The stochastic-to-regular mode transition is related to the higher background electron density in front of the propagating streamers. These findings help improving control of guided streamer propagation in applications from health care to nanotechnology and improve understanding of generic pre-breakdown phenomena.

Wu, S.; Lu, X., E-mail: luxinpei@hotmail.com; Liu, D.; Yang, Y.; Pan, Y. [State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan, Hubei 430074 (China); Ostrikov, K. [School of Chemistry, Physics and Mechanical Engineering, Queensland University of Technology, Brisbane, QLD 4000 (Australia); Commonwealth Scientific and Industrial Research Organization, P. O. Box 218, Lindfield, NSW 2070 (Australia); School of Physics, The University of Sydney, Sydney NSW 2006 (Australia)

2014-10-15T23:59:59.000Z

270

Photo-Ionization of Lithium: A Many-Body Calculation  

Science Journals Connector (OSTI)

The photo-ionization cross section a? of lithium has been calculated to second order in Brueckner-Goldstone perturbation theory with Hartree-Fock as zero order, for ejected electron energies in the range 0<~k2<~0. 36 Ry. Other Hartree-Fock calculations of a? are analyzed using certain new theorems relating alternative forms of the matrix element. The final second-order perturbed values of a? in the length and velocity formulations are in good agreement with experiment throughout the energy range studied.

Edward S. Chang and M. R. C. McDowell

1968-12-05T23:59:59.000Z

271

ORISE: DOE EERE National Geothermal Student Competition photo gallery  

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

U.S. Department of Energy Office of Energy Efficiency and Renewable Energy U.S. Department of Energy Office of Energy Efficiency and Renewable Energy National Geothermal Student Competition photo gallery Check out images of the winners of the 2010-2011 National Geothermal Student Competition. Eleven teams were selected and each team received $10,000 to conduct their assessment of the Rio Grande Rift. Photos courtesy of the National Renewable Energy Laboratory (NREL). National Geothermal Student Competition photo National Geothermal Student Competition photo National Geothermal Student Competition photo National Geothermal Student Competition photo National Geothermal Student Competition photo National Geothermal Student Competition photo National Geothermal Student Competition photo National Geothermal Student Competition photo

272

Photo Gallery Photo 1. Adult female watching her nest cavity as we checked its contents with a micro  

E-Print Network [OSTI]

Photo Gallery Photo 1. Adult female watching her nest cavity as we checked its contents DESERT All photographs by Aaron D. Flesch 446 Bulletin of the Ecological Society of America #12;Photo Gallery Photo 2. Nest site located in a giant saguaro cactus (Carnegiea gigantea) near the western edge

Montana, University of

273

Photo of the Week: What You Needed to Contain 100 Million Degree Plasma for  

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

Photo of the Week: What You Needed to Contain 100 Million Degree Photo of the Week: What You Needed to Contain 100 Million Degree Plasma for 100 Millionths of a Second... in 1974 Photo of the Week: What You Needed to Contain 100 Million Degree Plasma for 100 Millionths of a Second... in 1974 April 22, 2013 - 4:59pm Addthis In the early years of magnetic fusion, there was talk among scientists of controlling nuclear energy to create useful power. To do this, scientists heated plasma to temperatures as high as 100 million degrees Celsius -- ten times hotter than the center of the sun. Controlling such high levels of energy required the construction of large machines that could withstand these extremely high energy levels. In this 1974 photo, laboratory scientists are shown working on Scyllac, one of the largest machines used for magnetic fusion experiments, located at Los Alamos National Laboratory. Scyllac filled a 100-by-100-foot building from wall to wall, and used 12 miles of one-inch cables and 3,000 capacitors to contain hot plasma the size of a small garden hose for just 100 millionths of a second. Learn more about early magnetic fusion experiments at LANL. | Photo courtesy of Los Alamos National Laboratory.

274

Mirror-based hybrids of recent design  

Science Journals Connector (OSTI)

Early application of the simple axisymmetric mirror requiring intermediate performance between a neutron source for materials testing Q=Pfusion/Pinput ?0.05 and pure fusion Q>10 are the hybrid applications. The Axisymmetric Mirror has attractive features as a driver for a fusion-fission hybrid system: geometrical simplicity as well as the typical mirror features of inherently steady-state operation and natural divertors in the form of end tanks. Operation at Q?0.7 allows for relatively low electron temperatures in the range of 3 keV for the DT injection energy ? 80 keV from existing positive ion neutral beams designed for steady state. This level of physics performance has the virtue of being low risk with only modest R&D needed; and its simplicity promises economy advantages. A simple mirror with the plasma diameter of 1 m and mirror-to-mirror 2.5 T solenoid length of 40 m is discussed. Simple circular steady state superconducting coils at each end are based on 15 T technology development of the ITER central solenoid. Hybrids obtain important revenues from the sale of both electricity and fuel production or waste burning. Burning fission reactor wastes by fissioning transuranics in the hybrid will multiply fusion's neutron energy by a factor of ?10 or more and diminish the Q needed to overcome the cost of recirculating power for good economics to less than 2 and for minor actinides with multiplication over 50 to Q?0.2. Hybrids that produce fissile fuel with fissioning blankets might need Q4.

Dimitri Ryutov

2012-01-01T23:59:59.000Z

275

Scalable stacked array piezoelectric deformable mirror for astronomy and laser processing applications  

SciTech Connect (OSTI)

A prototype of a scalable and potentially low-cost stacked array piezoelectric deformable mirror (SA-PDM) with 35 active elements is presented in this paper. This prototype is characterized by a 2 ?m maximum actuator stroke, a 1.4 ?m mirror sag (measured for a 14 mm 14 mm area of the unpowered SA-PDM), and a 200 nm hysteresis error. The initial proof of concept experiments described here show that this mirror can be successfully used for shaping a high power laser beam in order to improve laser machining performance. Various beam shapes have been obtained with the SA-PDM and examples of laser machining with the shaped beams are presented.

Wlodarczyk, Krystian L., E-mail: K.L.Wlodarczyk@hw.ac.uk; Maier, Robert R. J.; Hand, Duncan P. [Institute of Photonics and Quantum Sciences, Heriot-Watt University, Edinburgh EH14 4AS (United Kingdom)] [Institute of Photonics and Quantum Sciences, Heriot-Watt University, Edinburgh EH14 4AS (United Kingdom); Bryce, Emma; Hutson, David; Kirk, Katherine [School of Engineering and Science, University of the West of Scotland, Paisley PA1 2BE (United Kingdom)] [School of Engineering and Science, University of the West of Scotland, Paisley PA1 2BE (United Kingdom); Schwartz, Noah; Atkinson, David; Beard, Steven; Baillie, Tom; Parr-Burman, Phil [UK Astronomy Technology Centre, Royal Observatory, Edinburgh EH9 3HJ (United Kingdom)] [UK Astronomy Technology Centre, Royal Observatory, Edinburgh EH9 3HJ (United Kingdom); Strachan, Mel [Institute of Photonics and Quantum Sciences, Heriot-Watt University, Edinburgh EH14 4AS (United Kingdom) [Institute of Photonics and Quantum Sciences, Heriot-Watt University, Edinburgh EH14 4AS (United Kingdom); UK Astronomy Technology Centre, Royal Observatory, Edinburgh EH9 3HJ (United Kingdom)

2014-02-15T23:59:59.000Z

276

Enhanced loss of magnetic-mirror-trapped fast electrons by a shear Alfvn wave  

SciTech Connect (OSTI)

Laboratory observations of enhanced loss of magnetic mirror trapped fast electrons irradiated by a shear Alfvn Wave (SAW) are reported. The experiment is performed in the quiescent after-glow plasma in the Large Plasma Device [Gekelman et al., Rev. Sci. Instrum. 62(12), 28752883 (1991)]. A trapped energetic electron population (>100?keV) is generated in a magnetic mirror section (mirror ratio???2, length?=?3.5?m) by an X-mode high power microwave pulse, and forms a hot electron ring due to the grad-B and curvature drift. SAWs of arbitrary polarization are launched externally by a Rotating Magnetic Field source (?B/B{sub 0}???0.1%, ?{sub ?}???9?m). Irradiated by a right-handed circularly polarized SAW, the loss of electrons, in both the radial and the axial direction of the mirror field, is significantly enhanced and is modulated at f{sub Alfvn}. The periodical loss continues even after the termination of the SAW. Experimental observations suggest that a spatial distortion of the ring is formed in the SAW field and creates a collective mode of the hot electron population that degrades its confinement and leads to electron loss from the magnetic mirror. The results could have implications on techniques of radiation belt remediation.

Wang, Y.; Gekelman, W.; Pribyl, P. [Department of Physics and Astronomy, University of California, Los Angeles, California 90095 (United States)] [Department of Physics and Astronomy, University of California, Los Angeles, California 90095 (United States); Papadopoulos, K. [Department of Physics and Astronomy, University of Maryland, College Park, Maryland 20742 (United States)] [Department of Physics and Astronomy, University of Maryland, College Park, Maryland 20742 (United States)

2014-05-15T23:59:59.000Z

277

Using Physical Memorabilia as Opportunities to Move into Collocated Digital Photo Sharing  

E-Print Network [OSTI]

- 1 - Using Physical Memorabilia as Opportunities to Move into Collocated Digital Photo Sharing.neustaedter@kodak.com ________________________________________________________________________ The uptake of digital photos vs. print photos has altered the practice of photo sharing. Print photos photos. People easily share digital photos outside the home, e.g., to family and friends by email gift

Greenberg, Saul

278

Argonne TTRDC - Transportation Images - Tesla Photo Gallery  

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

Testing the Tesla Photo Gallery Testing the Tesla Photo Gallery Argonne transportation engineers evaluated an all-electric Tesla Roadster at the Advanced Powertrain Research Facility's new two-wheel drive dynamometer laboratory in April, 2010. Read story. The following images may be used freely as long as they are accompanied by a statement that they were used "Courtesy of Argonne National Laboratory" (see our disclaimer). To download the high-resolution version of each picture, right-click on the "Download high-resolution image" text beneath the picture and select "Save Link As..." from the resulting pop-up menu. tesla testing Mike Duoba, chief engineer at Argonne's Advanced Powertrain Research Facility, looks on as Geoff Amann, senior technician, completes a driving cycle with the all-electric Tesla Roadster at the Lab's two-wheel dynamometer laboratory. Read story. Download hi-res photo.

279

Photo-Auger ionization of lithiumlike ions  

Science Journals Connector (OSTI)

The photo-Auger ionization process is a higher-order contribution to the direct photoelectric effect in which photoexcitation of an inner-shell electron is followed by the emission of an Auger electron. The frequency-integrated photo-Auger ionization cross section for ions of the lithium isoelectronic sequence is calculated in the isolated resonance approximation. The effects of transitions into all accessible intermediate states are explicitly included. Results are compared with the frequency-integrated direct photoionization cross section. The relative contribution of the photo-Auger effect for three-electron ions is a maximum in the Ne(7 +) region, where it is of order 70% of the direct process.

K. J. LaGattuta and Yukap Hahn

1982-01-01T23:59:59.000Z

280

Subcritical mirror structures in an anisotropic plasma  

E-Print Network [OSTI]

Based on Grad-Shafranov-like equations, a gyrotropic plasma where the pressures in the static regime are only functions of the amplitude of the local magnetic field is shown to be amenable to a variational principle with a free energy density given by the parallel tension. This approach is used to demonstrate that small- amplitude static holes constructed slightly below the mirror instability threshold identify with lump solitons of KPII equation and turn out to be unstable. It is also shown that regularizing effects such as finite Larmor radius corrections cannot be ignored in the description of large-amplitude mirror structures.

Kuznetsov, E A; Ruban, V P; Sulem, P L

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "mirror experiment photo" 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

Tanden Mirror Reactor Systems Code (TMRSC)  

SciTech Connect (OSTI)

This paper describes a computer code developed to model a tandem mirror reactor. This is the first tandem mirror reactor model to couple the highly linked physics, magnetics, and neutronic analysis into a single code. Results from this code for two sensitivity studies are included in this paper. These studies are designed (1) to determine the impact of center cell plasma radius, length, and ion temperature on reactor cost and performance at constant fusion power and (2) to determine the impact of reactor power level on cost.

Reid, R.L.; Rothe, K.E.; Barrett, R.J.

1985-01-01T23:59:59.000Z

282

Minimizing high spatial frequency residual in active space telescope mirrors  

E-Print Network [OSTI]

The trend in future space telescopes is towards large apertures and lightweight, rib-stiffened, and actively controlled deformable mirrors. These mirror architectures permit the development of segmented and deployed primary ...

Gray, Thomas, S.M. (Thomas L.) Massachusetts Institute of Technology

2008-01-01T23:59:59.000Z

283

Flat plate solar collector with a cantilevered mirror  

SciTech Connect (OSTI)

The use of flat booster mirrors with flat plate collectors provides moderate solar flux concentration and enhanced performance especially when the mirrors are seasonally adjusted. Curved mirrors provide higher flux concentration and a practical system has been developed where the booster mirror is bent elastically. The system employs a single cantilever mirror which is located below a conventional flat plate collector. The mirror is clamped at the base of the collector panel and its free end is deflected upward; a smaller deflection is used in the fall and winter than in the spring and summer. The prototype system consists of a 0.9 by 2.5 m collector panel mounted on its side (horizontal fluid flow) and a 2.7 by 2.5 m elastic mirror. The mirror is made with aluminum sheet with an adherent aluminized acrylic film. The system has been designed for mounting on horizontal surfaces at latitudes of 10 to 50/sup 0/.

Cohen, S.; Larson, D.C.

1981-01-01T23:59:59.000Z

284

Control of a MEMS fast steering mirror for laser applications  

E-Print Network [OSTI]

A control system for a MEMS fast steering mirror is designed and implemented to accurately steer a laser beam. This document contains a characterization of important mirror characteristics and the full analysis of an analog ...

Lane, Joseph Kerivan

2012-01-01T23:59:59.000Z

285

An Advanced Fast Steering Mirror for optical communication  

E-Print Network [OSTI]

I describe in this thesis the design, fabrication, assembly, and testing of an Advanced Fast Steering Mirror (AFSM) for precision optical platforms. The AFSM consists of a mirror driven in two rotational axes by normal ...

Kluk, Daniel Joseph

2007-01-01T23:59:59.000Z

286

Novel neutron focusing mirrors for compact neutron sources  

E-Print Network [OSTI]

We demonstrated neutron beam focusing and neutron imaging using axisymmetric optics, based on pairs of confocal ellipsoid and hyperboloid mirrors. Such systems, known as Wolter mirrors, are commonly used in x-ray telescopes. ...

Gubarev, M.V.

287

Three-Mirror Anastigmat Telescope with an Unvignetted Flat Focal Plane  

Science Journals Connector (OSTI)

......anastigmat with a two-mirror system except for some special cases (Schwarzschild 1905; Burch 1947). 3. Three-Mirror System In our three-mirror...Academic Press). Schwarzschild K. 1905, Investigations...Optics II, Theory of Mirror Telescopes, English......

Kyoji Nariai; Masanori Iye

2005-04-25T23:59:59.000Z

288

1944 aerial photo of Y-12 under construction | Y-12 National...  

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

1944 aerial photo of Y-12 ... 1944 aerial photo of Y-12 under construction A 1944 aerial photo showing various building under construction at Y-12....

289

Simulation analysis of LER and dose tradeoffs for EUV resist with photo-decomposable quencher  

E-Print Network [OSTI]

Tradeoffs for EUV Resists with Photo-Decomposable Quenchersconduct a simulation study of photo-decomposable quencher (to be marginal. Keywords: Photo-Decomposable Quenchers (

Bhattarai, Suchit

2014-01-01T23:59:59.000Z

290

Photo-oxidation of Ge Nanocrystals: Kinetic Measurements by In Situ Raman Spectroscopy  

E-Print Network [OSTI]

Photo-oxidation of Ge Nanocrystals: Kinetic Measurements byrate enhancement is due to a photo-chemical process. Thenanocrystals can be rapidly photo-oxidized. This oxidation

2008-01-01T23:59:59.000Z

291

Militarizing the Enemys home, Israel/ Palestine: a Photo Essay  

E-Print Network [OSTI]

s home, Israel/ Palestine: a Photo Essay Erella Grassianioutposts known as straw widows 1 . This photo essay,consisting of photos taken by professional photographers

Grassiani, Erella

2012-01-01T23:59:59.000Z

292

Spectroscopy, photo-physics, and time resolved exciton dynamics of GaSe quantum dots  

E-Print Network [OSTI]

MERCED Spectroscopy, Photo-physics, and Time Resolvedresolve this issue is to photo-select the heterostructuresof particles is first photo-selected by polarized excitation

Mirafzal, Hoda

2011-01-01T23:59:59.000Z

293

THE ARGUS EXPERIMENT  

Science Journals Connector (OSTI)

...first experiment which occurred to me stemmed out of my main field of endeavor in the last five years, namely, the Astron thermonuclear device. In this device it is contemplated to establish a cylindrical layer of relativistic electrons between two mirror...

N. C. Christofilos

1959-01-01T23:59:59.000Z

294

Solid State Replacement of Rotating Mirror Cameras  

SciTech Connect (OSTI)

Rotating mirror cameras have been the mainstay of mega-frame per second imaging for decades. There is still no electronic camera that can match a film based rotary mirror camera for the combination of frame count, speed, resolution and dynamic range. The rotary mirror cameras are predominantly used in the range of 0.1 to 100 micro-seconds per frame, for 25 to more than a hundred frames. Electron tube gated cameras dominate the sub microsecond regime but are frame count limited. Video cameras are pushing into the microsecond regime but are resolution limited by the high data rates. An all solid state architecture, dubbed ''In-situ Storage Image Sensor'' or ''ISIS'', by Prof. Goji Etoh, has made its first appearance into the market and its evaluation is discussed. Recent work at Lawrence Livermore National Laboratory has concentrated both on evaluation of the presently available technologies and exploring the capabilities of the ISIS architecture. It is clear though there is presently no single chip camera that can simultaneously match the rotary mirror cameras, the ISIS architecture has the potential to approach their performance.

Frank, A M; Bartolick, J M

2006-08-25T23:59:59.000Z

295

Mirroring and the development of action understanding  

Science Journals Connector (OSTI)

...seems possible that motor processes could be involved in the prospective...understanding the developmental processes that shape the mirror neuron...require understanding the interrelated neural systems at work in...infants engage these same processes in making sense of others...

2014-01-01T23:59:59.000Z

296

Radiation by Moving Mirrors in Curved Space-Time  

Science Journals Connector (OSTI)

......theory in the presence of a mirror in a curved two-dimensional...change of acceleration of the mirror is independent of the state...comoving flux emitted by a mirror lowered in a static gravitational...Theory in Two-Dimensional Schwarzschild-de Sitter Spacetime. II......

Adrian Ottewill; Shin Takagi

1988-01-01T23:59:59.000Z

297

Photo of the Week: Inside the Super HILAC | Department of Energy  

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

Inside the Super HILAC Inside the Super HILAC Photo of the Week: Inside the Super HILAC August 29, 2013 - 2:55pm Addthis Super HILAC (Super Heavy Ion Linear Accelerator) was one of the first particle accelerators that could accelerate heavier elements to “atom-smashing” speeds. The device was built in 1972 and played a significant role in four decades of scientific research at Lawrence Berkeley National Laboratory. In addition to being the launchpad for a variety of major experiments, the Super HILAC was crucial in the discovery of five superheavy elements. In this photo, Lawrence Berkeley National Laboratory’s Bob Stevenson and Frank Grobelch are sitting inside the Super HILAC’s poststripper. The maze of piping behind them is meant to circulate cooling water through the accelerator. | Photo courtesy of Lawrence Berkeley National Laboratory.

298

Photo of the Week: The Longest Building in the World | Department of Energy  

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

The Longest Building in the World The Longest Building in the World Photo of the Week: The Longest Building in the World November 1, 2013 - 12:24pm Addthis The DOE's SLAC linear accelerator, or "linac," stretches in a straight line for two miles across the hills of Stanford University in Menlo Park, California. The building shown in the photo -- known as the "klystron gallery" because it houses machines called klystrons that power the accelerator -- is the longest modern building in the world. The particle accelerator itself is a copper tube roughly 20 feet below ground and has been used to accelerate electrons and positrons for over 50 years of world-leading scientific experiments. | Photo courtesy of SLAC National Accelerator Laboratory. The DOE's SLAC linear accelerator, or "linac," stretches in a straight line

299

Photo of the Week: Controlling Chaos with Magnetic Fields | Department of  

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

Controlling Chaos with Magnetic Fields Controlling Chaos with Magnetic Fields Photo of the Week: Controlling Chaos with Magnetic Fields January 18, 2013 - 11:26am Addthis This artistic rendition of "spin vortices" illustrates tiny magnetic vortices that spin according to the polarization of each disk's vortex core. At Argonne National Laboratory, scientists are using alternating magnetic fields to control the behavior of these spin vortices, which are small dots made of iron and nickel. The experiments will help to create new, more efficient magnetic devices -- like the random access memory (RAM) in the device you are using to look at this very photo. Learn more about spin vortices. | Photo courtesy of Sander Munster, Dresden University of Technology.

300

UPDATED ADVISORY: Clean Energy Ministerial Photo Now at 11:15 AM |  

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

UPDATED ADVISORY: Clean Energy Ministerial Photo Now at 11:15 AM UPDATED ADVISORY: Clean Energy Ministerial Photo Now at 11:15 AM UPDATED ADVISORY: Clean Energy Ministerial Photo Now at 11:15 AM July 19, 2010 - 12:00am Addthis Washington, D.C. - U.S. Energy Secretary Steven Chu will host the first-ever Clean Energy Ministerial, bringing together ministers and stakeholders from more than 20 countries to launch or join new initiatives that will accelerate the world's transition to clean energy technologies. Government delegations will meet on Monday, July 19. On Tuesday, July 20, ministers, CEOs and other clean energy leaders will discuss their experiences and announce joint initiatives in a Public Forum. The meeting grows out of a Global Partnership launched by the leaders of the Major Economies Forum. The countries attending represent 70 percent of global greenhouse gas

Note: This page contains sample records for the topic "mirror experiment photo" 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

UPDATED ADVISORY: Clean Energy Ministerial Photo Now at 11:15 AM |  

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

UPDATED ADVISORY: Clean Energy Ministerial Photo Now at 11:15 AM UPDATED ADVISORY: Clean Energy Ministerial Photo Now at 11:15 AM UPDATED ADVISORY: Clean Energy Ministerial Photo Now at 11:15 AM July 19, 2010 - 12:00am Addthis Washington, D.C. - U.S. Energy Secretary Steven Chu will host the first-ever Clean Energy Ministerial, bringing together ministers and stakeholders from more than 20 countries to launch or join new initiatives that will accelerate the world's transition to clean energy technologies. Government delegations will meet on Monday, July 19. On Tuesday, July 20, ministers, CEOs and other clean energy leaders will discuss their experiences and announce joint initiatives in a Public Forum. The meeting grows out of a Global Partnership launched by the leaders of the Major Economies Forum. The countries attending represent 70 percent of global greenhouse gas

302

Photo of the Week: Inside the 60-Inch Cyclotron | Department of Energy  

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

Inside the 60-Inch Cyclotron Inside the 60-Inch Cyclotron Photo of the Week: Inside the 60-Inch Cyclotron January 25, 2013 - 11:45am Addthis In this 1939 photo, Eric and Margaret Lawrence are sitting inside the tank of something called the 60-inch cyclotron -- a machine invented by their father, Ernest Lawrence. The cyclotron is a unique circular particle accelerator, which Lawrence himself referred to as a "proton merry-go-round." In reality, the cyclotron specialized in smashing atoms. Fun facts: this cyclotron contains a magnet that weighs 220 tons, and experiments conducted on this very machine led to the discovery of plutonium and Nobel Prizes for researchers Glenn Seaborg and Melvin Calvin. Ernest Lawrence passed away in 1958 -- just 23 days later, the Regents of the University of California voted to rename two of the university's nuclear research sites: Lawrence Livermore and Lawrence Berkeley Laboratories. | Photo courtesy of Lawrence Berkeley National Laboratory.

303

Incoherent {phi} photo-production from deuteron in SPring-8/LEPS  

SciTech Connect (OSTI)

We present measurements of differential cross sections and decay asymmetries of incoherent {phi}-meson photo-production from the deuteron at forward angles using linearly polarized photons beam in energy range from the production threshold to E = 2.4 GeV. The experiment was performed at the SPring-8/LEPS facility. The differential cross section of incoherent production shows a large suppression compared with the free proton case. The reduction for the deuteron cannot be clearly explained in terms of simple isospin asymmetry. The decay asymmetry of incoherent {phi} photo-production shows that the eta exchange process is small. Since the exclusive K{sup +}K{sup -}p cross section shows the same reduction with incoherent, both the proton and neutron cross section reduce similarly. Consequently, the {pi}-{eta} interference effect is small too. The present results suggest that our understanding of {phi} photo-production within a nucleus should be rearranged.

Miyabe, M. [Research Center of Nuclear Physics Osaka Univ (Japan)

2011-10-21T23:59:59.000Z

304

Photo of the Week: Not Your Typical Jet Engine | Department of Energy  

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

Not Your Typical Jet Engine Not Your Typical Jet Engine Photo of the Week: Not Your Typical Jet Engine November 23, 2012 - 11:57am Addthis As part of the Aircraft Nuclear Propulsion Program, the U.S. conducted extensive research showing that nuclear fission could power an aircraft. The research involved a series of Heat Transfer Reactor Experiments (HTREs), which tested if different types of jet engines could be run by nuclear power. In 1955, however, the project was cancelled, and a safe, operational prototype aircraft was never developed. In this 1988 photo, the two HTRE reactors are shown in transport to Idaho National Laboratory's EBR-1 visitor center, where they remain today. | Photo courtesy of Idaho National Laboratory. As part of the Aircraft Nuclear Propulsion Program, the U.S. conducted

305

The Photo-Sensitized Oxidation of Ethanol  

Science Journals Connector (OSTI)

...research-article The Photo-Sensitized Oxidation of Ethanol J. L. Bolland H. R. Cooper Certain...photosensitizers of the autoxidation of ethanol. In this quantitative investigation the...mechanism, abstracting hydrogen from the ethanol to give a semi-quinone radical which...

1954-01-01T23:59:59.000Z

306

Lens system for a photo ion spectrometer  

DOE Patents [OSTI]

A lens system in a photo ion spectrometer for manipulating a primary ion beam and ionized atomic component is disclosed. The atomic components are removed from a sample by a primary ion beam using the lens system, and the ions are extracted for analysis. The lens system further includes ionization resistant coatings for protecting the lens system. 8 figs.

Gruen, D.M.; Young, C.E.; Pellin, M.J.

1990-11-27T23:59:59.000Z

307

Lens system for a photo ion spectrometer  

DOE Patents [OSTI]

A lens system in a photo ion spectrometer for manipulating a primary ion beam and ionized atomic component. The atomic components are removed from a sample by a primary ion beam using the lens system, and the ions are extracted for analysis. The lens system further includes ionization resistant coatings for protecting the lens system.

Gruen, Dieter M. (Downers Grove, IL); Young, Charles E. (Westmont, IL); Pellin, Michael J. (Napersville, IL)

1990-01-01T23:59:59.000Z

308

Photo-Electric Thresholds and Fatigue  

Science Journals Connector (OSTI)

Photo-electric fatigue.Using elements of the highest purity, clean surfaces were prepared, in a vacuum of the order of 10-6 mm of Hg, by means of an electromagnetic filing device. A linear relation was found between the logarithm of the photo-electric current and the logarithm of the time elapsed since polishing the specimen. The rate of fatigue depends upon the element used and the factors which produce fatigue and, for a given substance, increases numerically as the threshold is approached. Increasing the pressure increases the rate of fatigue. The action of light has a negligible effect.Photo-electric thresholds.The values for Ca, Fe, Co, Ni, Cu, Zn, and Ge are, respectively, 4475, 3155, 3165, 3040, 2955, 3180, and 2880A. Within a period of several hours at least photo-electric fatigue causes no change in these values when a high vacuum is used. Evidence for a shift towards shorter wave-lengths is obtained for lower vacua.The "patch" theory.A theory in which contamination takes place at discrete areas of the surface of the element is proposed to account for the experimental facts obtained.

George B. Welch

1928-10-01T23:59:59.000Z

309

Water Power For a Clean Energy Future Cover Photo | Department...  

Energy Savers [EERE]

Water Power For a Clean Energy Future Cover Photo Water Power For a Clean Energy Future Cover Photo Water Power For a Clean Energy Future Cover.JPG More Documents & Publications...

310

spread their Photo:FeraCrownCopyright2011  

E-Print Network [OSTI]

...don't spread their germs! Photo:Fera©CrownCopyright2011 Plants get ill too... For more information please visit www.scotland.gov.uk/planthealth Photo:ForestryCommission©CrownCopyright2011 © Crown

311

Fix photo here CSU Fullerton Exchange Program Application  

E-Print Network [OSTI]

Fix photo here CSU Fullerton Exchange Program Application Instructions: Don't abbreviate. Answer purposes (check one) CA resident Non-Resident F-1 Visa Student Any photo that shows your face well will do

de Lijser, Peter

312

Photo-induced hydrogen production in a helical peptide incorporating...  

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

Photo-induced hydrogen production in a helical peptide incorporating a FeFe hydrogenase active site mimic Authors: Roy, A., Madden, C., and Ghirlanda, G. Title: Photo-induced...

313

A Few Observations about Mounting Moderately Sized Mirrors  

SciTech Connect (OSTI)

Most of the mirror mounting literature has focused on small (less than 0.1 meters) or large (greater than 1 meter) mirrors. We will examine the theory and practice of mounting moderately sized mirrors (between 0.1 and 1 meter). Two examples will be taken from optical diagnostic systems designed for the National Ignition Facility (NIF). In both cases the mirrors were removable (not bonded in place). One of the examples will be for a mirror with a poor aspect ratio (i.e. diameter to thickness ratio greater than 15:1).

Kaufman, M. I.

2011-09-01T23:59:59.000Z

314

Variations in the Photo-Electric Sensitivity of Platinum  

Science Journals Connector (OSTI)

...measurable photo-electric emission. Variation...of the photo-electric sensitivity to the mercury arc and to a hydrogen discharge. A hydrogen...RATIO HEATING HG ARC H DISCHARGE H/HG 0 80...in the photo-electric threshold to...

Lee A. DuBridge

1926-01-01T23:59:59.000Z

315

Smart Photo Selection: Interpret Gaze as Personal Interest Tina Walber  

E-Print Network [OSTI]

Smart Photo Selection: Interpret Gaze as Personal Interest Tina Walber WeST Institute University staab@uni-koblenz.de ABSTRACT Manually selecting subsets of photos from large collections in order to present them to friends or colleagues or to print them as photo books can be a tedious task. Today, fully

Staab, Steffen

316

Photo-, Thermally, and pH-Responsive Microgels  

Science Journals Connector (OSTI)

Photo-, Thermally, and pH-Responsive Microgels ... Microgels with photo-, thermally, and pH-responsive properties in aqueous suspension have been synthesized and characterized using dynamic light scattering and UV?visible spectroscopy. ... This synthesis has the significant advantage of forming monodisperse particles with thermally, photo-, and pH-responsive properties. ...

Antonio Garcia; Manuel Marquez; Tong Cai; Rohit Rosario; Zhibing Hu; Devens Gust; Mark Hayes; Sean A. Vail; Choong-Do Park

2006-10-19T23:59:59.000Z

317

Multimodal Photo Annotation and Retrieval on a Mobile Xavier Anguera  

E-Print Network [OSTI]

Multimodal Photo Annotation and Retrieval on a Mobile Phone Xavier Anguera Telefónica Research Via- mon to observe users capturing photos and videos on their mobile phones on a regular basis (Multimodal Automatic Mobile Index- ing). It allows users to annotate, index and search for digital photos

California at Santa Barbara, University of

318

Home Photo Retrieval: Time matters Philippe Mulhem1  

E-Print Network [OSTI]

Home Photo Retrieval: Time matters Philippe Mulhem1 and Joo-Hwee Lim2 1. IPAL-CNRS, 2. Institute.a-star.edu.sg Abstract Temporal information has been regarded as a key vehicle for sorting and grouping home photos into albums associated with events. While time-based browsing might be adequate for relatively small photo

Boyer, Edmond

319

Roadmap: Photo Illustration -Bachelor of Science [CI-BS-PHOI  

E-Print Network [OSTI]

Roadmap: Photo Illustration - Bachelor of Science [CI-BS-PHOI] College of Communication Graphic Design and Illustration 3 VCD 20001 Sophomore Entrance Examination/Portfolio Review ­ Photo Illustration 1 VCD 20010 Introduction to Design Research 3 VCD 38003 Photo Technology 3 See note 4 on page

Sheridan, Scott

320

Kaon photo-production on the nucleon and deuteron  

E-Print Network [OSTI]

Isobaric models for the photo-production of K$^+$ are discussed and their predictions are shown in the K$^0$ photo-production. The models are further used in spectator model calculations of the K$^0$ photo-production on deuteron. Considerable dependence of the inclusive cross section on the elementary amplitude was found.

P. Bydzovsky; M. Sotona; O. Hashimoto; T. Takahashi

2004-12-09T23:59:59.000Z

Note: This page contains sample records for the topic "mirror experiment photo" 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

Photo-Ionization and the Electrical Breakdown of Gases  

Science Journals Connector (OSTI)

25 June 1953 research-article Photo-Ionization and the Electrical Breakdown...theoretical investigation is made of the role of photo-ionization of the gas in the development...obtained experimentally. It is shown that photo-ionization can lead to electrical breakdown...

1953-01-01T23:59:59.000Z

322

Quantitative Photo-Acoustic Imaging of Small Absorbers Habib Ammari  

E-Print Network [OSTI]

Quantitative Photo-Acoustic Imaging of Small Absorbers Habib Ammari Emmanuel Bossy Vincent Jugnon Hyeonbae Kang§ December 1, 2009 Abstract In photo-acoustic imaging, energy absorption causes thermo absorber from the absorbed density. AMS subject classifications. 31B20, 35B37,35L05 Key words. photo

Kang, Hyeonbae

323

Cover Photo The cover photo for the 2013 Academic Program Review Self Study document features a member of the Fightin'  

E-Print Network [OSTI]

#12;Cover Photo The cover photo for the 2013 Academic Program Review Self Study document features in the elimination of two non-tenure tracked lecturer positions and the loss of all but one hard- funded research

324

2013 MEES Photo Contest Colloquium Website: http://www.umces.edu/hpl/meescolloquium2013  

E-Print Network [OSTI]

2013 MEES Photo Contest Colloquium Website: http Photo Contest Theme: "Capturing MEES Life" Photos Due: 12:00 noon on Sept to meesphoto@yahoo.com o Photos must be received no later than 12:00 noon September

Boynton, Walter R.

325

Applying Alpha-Channeling to Mirror Machines  

SciTech Connect (OSTI)

The ?-channeling effect entails the use of radio-frequency waves to expel and cool high-energetic ?- particles born in a fusion reactor; the device reactivity can then be increased even further by redirecting the extracted energy to fuel ions. Originally proposed for tokamaks, this technique has also been shown to benefi t open-ended fusion devices. Here, the fundamental theory and practical aspects of ?- channeling in mirror machines are reviewed, including the influence of magnetic field inhomogeneity and the effect of a finite wave region on the ?-channeling mechanism. For practical implementation of the ? -channeling effect in mirror geometry, suitable contained weakly-damped modes are identifi ed. In addition, the parameter space of candidate waves for implementing the ? -channeling effect can be signi cantly extended through the introduction of a suitable minority ion species that has the catalytic effect of moderating the transfer of power from the ?-channeling wave to the fuel ions.

A.I. Zhmoginov and N.J. Fisch

2012-03-16T23:59:59.000Z

326

Two-mirror Schwarzschild aplanats. Basic relations  

E-Print Network [OSTI]

It is shown that the theory of aplanatic two-mirror telescopes developed by Karl Schwarzschild in 1905 leads to the unified description both the prefocal and the postfocal systems. The class of surfaces in the ZEMAX optical program has been properly extended to ascertain the image quality in exact Schwarzschild aplanats. A comparison of Schwarzschild aplanats with approximate Ritchey-Chretien and Gregory-Maksutov aplanatic telescopes reveals a noticeable advantage of the former at fast focal ratio of the system.

Terebizh, V Y

2005-01-01T23:59:59.000Z

327

Two-mirror Schwarzschild aplanats. Basic relations  

E-Print Network [OSTI]

It is shown that the theory of aplanatic two-mirror telescopes developed by Karl Schwarzschild in 1905 leads to the unified description both the prefocal and the postfocal systems. The class of surfaces in the ZEMAX optical program has been properly extended to ascertain the image quality in exact Schwarzschild aplanats. A comparison of Schwarzschild aplanats with approximate Ritchey-Chretien and Gregory-Maksutov aplanatic telescopes reveals a noticeable advantage of the former at fast focal ratio of the system.

V. Yu. Terebizh

2005-02-05T23:59:59.000Z

328

Photo-Ionization of Molecules near Threshold  

Science Journals Connector (OSTI)

An orthogonalized Coulomb-wave method for the construction of continuum wave functions of molecules is described. Hydrogenic functions of definite angular momentum, which transform according to the irreducible representations of the point group of the molecule, are phenomenologically used as trial functions. Corrections to the trial functions are made by orthogonalizing them to charge rearrangement states of the molecule. The photo-ionization cross section is obtained by summing over the asymptotic angular-momentum quantum number. The method is exemplified by calculation of the photo-ionization cross sections of the ground and first excited states of the anthracene molecule in the range of 1.5 eV above threshold.

John P. Hernandez

1968-03-05T23:59:59.000Z

329

Can photo-evaporation trigger planetesimal formation?  

E-Print Network [OSTI]

We propose that UV radiation can stimulate the formation of planetesimals in externally-illuminated protoplanetary disks. We present a numerical model of disk evolution including vertical sedimentation and photo-evaporation by an external O or B star. As solid material grows and settles toward the disk midplane, the outer layers of the disk become dust depleted. When such a disk is exposed to UV radiation, heating drives photo-evaporative mass-loss from its surface, generating a dust-depleted outflow. The dust:gas surface density ratio in the disk interior grows until dust in the disk midplane becomes gravitationally unstable. Thus, UV radiation fields may induce the rapid formation of planetesimals in disks where sedimentation has occurred.

Henry B. Throop; John Bally

2004-11-23T23:59:59.000Z

330

Photo-induced electron transfer method  

DOE Patents [OSTI]

The efficiency of photo-induced electron transfer reactions is increased and the back transfer of electrons in such reactions is greatly reduced when a photo-sensitizer zinc porphyrin-surfactant and an electron donor manganese porphyrin-surfactant are admixed into phospholipid membranes. The phospholipids comprising said membranes are selected from phospholipids whose head portions are negatively charged. Said membranes are contacted with an aqueous medium in which an essentially neutral viologen electron acceptor is admixed. Catalysts capable of transferring electrons from reduced viologen electron acceptor to hydrogen to produce elemental hydrogen are also included in the aqueous medium. An oxidizable olefin is also admixed in the phospholipid for the purpose of combining with oxygen that coordinates with oxidized electron donor manganese porphyrin-surfactant.

Wohlgemuth, R.; Calvin, M.

1984-01-24T23:59:59.000Z

331

Photo-induced electron transfer method  

DOE Patents [OSTI]

The efficiency of photo-induced electron transfer reactions is increased and the back transfer of electrons in such reactions is greatly reduced when a photo-sensitizer zinc porphyrin-surfactant and an electron donor manganese porphyrin-surfactant are admixed into phospho-lipid membranes. The phospholipids comprising said membranes are selected from phospholipids whose head portions are negatively charged. Said membranes are contacted with an aqueous medium in which an essentially neutral viologen electron acceptor is admixed. Catalysts capable of transfering electrons from reduced viologen electron acceptor to hydrogen to produce elemental hydrogen are also included in the aqueous medium. An oxidizable olefin is also admixed in the phospholipid for the purpose of combining with oxygen that coordinates with oxidized electron donor manganese porphyrin-surfactant.

Wohlgemuth, Roland (2823 Hillegass Ave., Berkeley, CA 94705); Calvin, Melvin (2683 Buena Vista Way, Berkeley, CA 94708)

1984-01-01T23:59:59.000Z

332

VOLUME 76, NUMBER 1 P H Y S I C A L R E V I E W L E T T E R S 1 JANUARY 1996 First Study of Heavy-Ion Mirror Charge Exchange  

E-Print Network [OSTI]

are nuclear reaction studies with mirror nuclear pairs, since only one member of a mirror pair can be stable accessible excitation energy range. Charge-exchange p, n reactions at energies above 100 MeV have long been, since they involve the detection of rather low-energy neutrons. Furthermore, experiments in the b1

Bertulani, Carlos A. - Department of Physics and Astronomy, Texas A&M University

333

BooNE: Booster Neutrino Experiment  

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

linked in their own page with captions. Additional resources are the Talks, Slides and Posters page and the Publications page Experiment Details Data Releases BooNE photo montage...

334

Optical analysis of an ultra-high resolution two-mirror soft x-ray microscope  

Science Journals Connector (OSTI)

Promoted by the successful application of multilayer coated optics in soft x-ray imaging experiments in solar physics and projection lithography, several groups have designed, analyzed, fabricated, and are testing Schwarzschild multilayer soft x-ray microscopes. Simulations have indicated that diffraction limited performance of a spherical Schwarzschild microscope operating near 100 will be limited to systems with a small numerical aperture of approximately 0.15 and a corresponding resolution, based on the Rayleigh criterion, of 3.3 times the wavelength of the incident radiation. In principle, a two aspherical mirror Head microscope, which satisfies the constant optical path length condition and the Abb sine condition, should achieve diffraction limited performance for very large numerical apertures. For a practical soft x-ray microscope, surface contour errors, microroughness, reflectance of multilayer coatings, and variation of the angle of incidence over the multilayer substrates become significant factors in degrading system resolution and must be controlled before an ultra-high resolution, two-mirror microscope will be realized. For a 30x reflecting microscope with a numerical aperture ranging from 0.15 to 0.35, the effects on resolution of surface contour errors, tilts, and misalignments of the optics have been studied. Graded spacing of the multilayer coatings on the mirror substrates are required of a fast, two-mirror microscope.

David L. Shealy; Cheng Wang; Richard B. Hoover

1995-01-01T23:59:59.000Z

335

Neutron to mirror-neutron oscillations in the presence of mirror magnetic fields  

Science Journals Connector (OSTI)

We performed ultracold neutron storage measurements to search for additional losses due to neutron (n) to mirror-neutron (n?) oscillations as a function of an applied magnetic field B. In the presence of a mirror magnetic field B?, ultracold neutron losses would be maximal for B?B?. We did not observe any indication for nn? oscillations and placed a lower limit on the oscillation time of ?nn?>12.0??s at 95% C.L. for any B? between 0 and 12.5???T.

I. Altarev et al.

2009-08-17T23:59:59.000Z

336

Production of large-radius, high-beta, confined mirror plasmas  

Science Journals Connector (OSTI)

This paper reports results of experiments in which mirror-confined plasmas with radii as high as 7 ion gyro-radii are produced and maintained by neutral-beam injection. In these plasmas, betas as high as 0.45 were achieved and limited only by the available neutral-beam power. Electron temperature and ion-energy confinement increased with larger plasma size.

D.L. Correll; J.H. Clauser; F.H. Coensgen; W.F. Cummins; R.P. Drake; J.H. Foote; A.H. Futch; R.K. Goodman; D.P. Grubb; G.M. Melin; W.E. Nexsen; T.C. Simonen; B.W. Stallard; W.C. Turner

1980-01-01T23:59:59.000Z

337

Mirror Film Company Has 'Concentrated' Plans for Expansion | Department of  

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

Mirror Film Company Has 'Concentrated' Plans for Expansion Mirror Film Company Has 'Concentrated' Plans for Expansion Mirror Film Company Has 'Concentrated' Plans for Expansion September 10, 2010 - 1:19pm Addthis Lorelei Laird Writer, Energy Empowers In concentrating solar power, glass is king-but it's fighting to hold on to its crown. The reflectivity of glass mirrors makes them a great choice for focusing sunlight onto a heat generator. However, the glass mirrors can be expensive and heavy -- reducing their ability to compete with conventional energy sources. ReflecTech Inc. has an option: a silvered polymer-based film that does the same job, but with half the weight and cost. Using that film, the company can make 100,000 square feet of mirror panels per year at its factory in Arvada, Colo. Through an Advanced Manufacturing 48C tax credit through the Recovery Act,

338

Neutron-Mirror-Neutron Oscillations in a Trap  

E-Print Network [OSTI]

We calculate the rate of neutron-mirror-neutron oscillations for ultracold neutrons trapped in a storage vessel. Recent experimental bounds on the oscillation time are discussed.

B. Kerbikov; O. Lychkovskiy

2008-04-03T23:59:59.000Z

339

Neutronmirror-neutron oscillations in a trap  

Science Journals Connector (OSTI)

We calculate the rate of neutronmirror-neutron oscillations for ultracold neutrons trapped in a storage vessel. Recent experimental bounds on the oscillation time are discussed.

B. Kerbikov and O. Lychkovskiy

2008-06-27T23:59:59.000Z

340

Super-Gaussian mirror for high-field-seeking molecules  

SciTech Connect (OSTI)

A matter wave mirror using a single, pulsed, super-Gaussian (SG) optical beam for specular reflection of neutral ground-state molecules is studied. The mirror has a high reflectivity close to 100% and nearly perfect specular reflection over a large incident angle. This mirror avoids the usual problems due to surface roughness and the van der Waals interactions that occur in conventional atomic mirrors. Further, it is capable of reflectance and transmittance with applications to velocity filtering and deceleration of cold molecules.

Dong Guangjiong; Edvadsson, Sverker [Electronic Division, ITM, Mid Sweden University, 851 70, Sundsvall (Sweden); Lu Weiping; Barker, P.F. [Physics Department, School of Engineering and Physical Science, Heriot-Watt University, Edinburgh, Scotland (United Kingdom)

2005-09-15T23:59:59.000Z

Note: This page contains sample records for the topic "mirror experiment photo" 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

Elliptically Bent X-ray Mirrors with Active Temperature Stabilization  

E-Print Network [OSTI]

stabilization based on a Peltier element attached directlyof the mirror with a Peltier element attached directly tostabilization based on a Peltier element have shown a

Yuan, Sheng

2010-01-01T23:59:59.000Z

342

Elliptically Bent X-ray Mirrors with Active Temperature Stabilization  

SciTech Connect (OSTI)

We present details of design of elliptically bent Kirkpatrick-Baez mirrors developed and successfully used at the Advanced Light Source for submicron focusing. A distinctive feature of the mirror design is an active temperature stabilization based on a Peltier element attached directly to the mirror body. The design and materials have been carefully optimized to provide high heat conductance between the mirror body and substrate. We describe the experimental procedures used when assembling and precisely shaping the mirrors, with special attention paid to laboratory testing of the mirror-temperature stabilization. For this purpose, the temperature dependence of the surface slope profile of a specially fabricated test mirror placed inside a temperature-controlled container was measured. We demonstrate that with active mirror-temperature stabilization, a change of the surrounding temperature by more than 3K does not noticeably affect the mirror figure. Without temperature stabilization, the surface slope changes by approximately 1.5 ?mu rad rms (primarily defocus) under the same conditions.

Yuan, Sheng; Church, Matthew; Yashchuk, Valeriy V.; Goldberg, Kenneth A.; Celestre, Rich; McKinney, Wayne R.; Kirschman, Jonathan; Morrison, Greg; Noll, Tino; Warwick, Tony; Padmore, Howard A.

2010-01-31T23:59:59.000Z

343

Magnetic-mirror principle as applied to fusion research  

SciTech Connect (OSTI)

A tutorial account is given of the key physics issues in the confinement of high temperature plasma in magnetic mirror systems. The role of adiabatic invariants and particle drifts and their relationship to equilibrium and stability are discussed, in the context of the various forms of mirror field geometry. Collisional effects and the development and the control of ambipolar potentials are reviewed. The topic of microinstabilities is discussed together with the means for their control. The properties and advantages for fusion power purposes of various special embodiments of the mirror idea, including tandem mirrors, are discussed.

Post, R.F.

1983-08-11T23:59:59.000Z

344

Using the Uncharged Kerr Black Hole as a Gravitational Mirror  

Science Journals Connector (OSTI)

We extend the study of the possible use of the Schwarzschild black hole as a gravitational mirror to the more general case of an...

Claes R. Cramer

1997-04-01T23:59:59.000Z

345

Stroke amplifier for deformable mirrors Robert H. Webb, Marc J. Albanese, Yaopeng Zhou, Thomas Bifano, and  

E-Print Network [OSTI]

Stroke amplifier for deformable mirrors Robert H. Webb, Marc J. Albanese, Yaopeng Zhou, Thomas stroke of a deformable mirror. By arranging for the wavefront to traverse the deformable mirror more than to produce lower- cost mirrors. Unfortunately, most commercial MEMS mirrors have only a limited stroke

346

Wave-Driven Rotation In Centrifugal Mirrors  

SciTech Connect (OSTI)

Centrifugal mirrors use supersonic rotation to provide axial confinement and enhanced stability. Usually the rotation is produced using electrodes, but these electrodes have limited the rotation to the Alfven critical ionization velocity, which is too slow to be useful for fusion. Instead, the rotation could be produced using radio frequency waves. A fixed azimuthal ripple is a simple and efficient wave that could produce rotation by harnessing alpha particle energy. This is an extension of the alpha channeling effect. The alpha particle power and efficiency in a simulated devices is sufficient to produce rotation without external energy input. By eliminating the need for electrodes, this opens new opportunities for centrifugal traps.

Abraham J. Fetterman and Nathaniel J. Fisch

2011-03-28T23:59:59.000Z

347

Power Plant Optimization Demonstration Projects Cover Photos:  

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

5 SEPTEMBER 2007 5 SEPTEMBER 2007 Power Plant Optimization Demonstration Projects Cover Photos: * Top left: Coal Creek Station * Top right: Big Bend Power Station * Bottom left: Baldwin Energy Complex * Bottom right: Limestone Power Plant A report on four projects conducted under separate cooperative agreements between the U.S. Department of Energy and: * Great River Energy * Tampa Electric Company * Pegasus Technologies * NeuCo. , Inc.  Power Plant Optimization Demonstration Projects Executive Summary .......................................................................................4 Background: Power Plant Optimization ......................................................5 Lignite Fuel Enhancement Project ...............................................................8

348

Hyperon Photo and Electro Production at CLAS  

E-Print Network [OSTI]

Developments in strangeness photo- and electro- production off the proton, as investigated using the CLAS system in Hall B at Jefferson Lab, are discussed in this paper. By measuring sufficient spin observables one can decompose the reaction mechanism into elementary amplitudes. We discuss progress toward this end in recent data from CLAS, including cross sections and spin observables. We next discuss new results on the mass distribution of the $\\Lambda(1405)$, which shows signs of being a composite meson-baryon object of mixed isospin. The work on other hyperons such as the $\\Xi$ resonances will be mentioned, and future prospects outlined.

Reinhard Schumacher

2009-11-04T23:59:59.000Z

349

DOE Solar Decathlon: 2005 Photo Gallery of Homes  

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

Photo Gallery of Homes Photo Gallery of Homes Here, you can see photos of the completed houses for Solar Decathlon 2005 on the National Mall. You can also read a Daily Journal and view Photos of the Day to see the students in action who built these beautiful houses and to learn more about solar energy, energy efficiency, and other renewable energy technologies. High-resolution photos can be download from the Photo Library. California Polytechnic State University Canadian Solar Decathlon (Concordia University and Université de Montréal) University of Colorado, Denver and Boulder Cornell University Crowder College Florida International University New York Institute of Technology Pittsburgh Synergy (Carnegie Mellon, University of Pittsburgh, and The Art Institute of Pittsburgh) Rhode Island School of Design

350

Photo of the Week: The VULCAN Diffractometer | Department of Energy  

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

Photo of the Week: The VULCAN Diffractometer Photo of the Week: The VULCAN Diffractometer Photo of the Week: The VULCAN Diffractometer October 12, 2012 - 4:35pm Addthis The VULCAN diffractometer at Oak Ridge National Laboratory’s Spallation Neutron Source (SNS) was built to take measurements of engineered components like a jet engine turbine blade or the frame of a car. VULCAN can "see" inside the material and make three dimensional maps of the distance between atoms in critical sections. Scientists can use these maps to determine if the atoms are being squeezed together or pulled apart — signs of stress in the materials. This photo highlights the optical fibers of a VULCAN detector module. The fibers transmit light signals created by captured neutrons to photo multiplier tubes where the signals are amplified and then sent into a data acquisition system. | Photo courtesy of Oak Ridge National Laboratory.

351

A Rosetta Stone Relating Conventions In Photo-Meson Partial Wave Analyses  

SciTech Connect (OSTI)

A new generation of complete experiments in pseudoscalar meson photo-production is being pursued at several laboratories. While new data are emerging, there is some confusion regarding definitions of asymmetries and the conventions used in partial wave analyses (PWA). We present expressions for constructing asymmetries as coordinate-system independent ratios of cross sections, along with the names used for these ratios by different PWA groups.

A.M. Sandorfi, B. Dey, A. Sarantsev, L. Tiator, R. Workman

2012-04-01T23:59:59.000Z

352

Ecologist for a Day Photo Album | Savannah River Ecology Laboratory...  

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

SREL Home Ecologist for a Day Photo Album Program supported by: University of Georgia National Nuclear Security Administration Department of Energy Current School Year: November 7,...

353

Photo of the Week: Students from Roosevelt Middle School win...  

Office of Environmental Management (EM)

Students from Roosevelt Middle School win Argonne's 2013 Regional Science Bowl Photo of the Week: Students from Roosevelt Middle School win Argonne's 2013 Regional Science Bowl...

354

Photo Gallery: 2015 ARPA-E Innovation Summit Technology Showcase  

Broader source: Energy.gov [DOE]

Check out our photo gallery of some of the cutting edge technology on display at the 2015 ARPA-E Summit Technology Showcase.

355

Optical evaluation of heliostat mirrors using caustics  

Science Journals Connector (OSTI)

Solar thermal power generation is based on the concept of concentrating solar radiation to provide high temperature heat for electricity generation via conventional power cycles. The high relative cost of optical subsystems necessitates a careful study of their components. Solar collector fields are typically modeled by ray-tracing or convolution methods; however no general method is available for engineering analysis. We propose the use of caustics to predict the image of the sun reflected by an arbitrary mirror of focal length F and aperture a on a target. The mirror surface is described parametrically by a quadric and placed at a distance L from the target on a heliostat. The method of caustics was validated against SolTRACE a ray-tracing code developed by U.S. National Renewable Energy Laboratories . We show that there is a value of a F which depends on a L for which the incident average energy flux to the target reaches a maximum. The method of caustics allows the efficient computation of the image on an arbitrary target surface and obviates many of the difficulties with ray-tracing methods.

2013-01-01T23:59:59.000Z

356

Quantum, Photo-Electric Single Capacitor Paradox  

E-Print Network [OSTI]

In this work single capacitor paradox (a variation of the remarkable two capacitor paradox) is considered in a new, quantum discrete form. Simply speaking we consider well-known usual, photoelectric effect experimental device, i.e. photo electric cell, where cathode and anode are equivalently charged but non-connected. It, obviously, represents a capacitor that initially, i.e. before action of the photons with individual energy equivalent to work function, holds corresponding energy of the electrical fields between cathode and anode. Further, we direct quantum discretely photons, one by one, toward cathode where according to photo-electrical effect electrons discretely, one by one, will be emitted and directed toward anode. It causes discrete discharge of the cell, i.e. capacitor and discrete decrease of the electrical field. Finally, total discharge of the cell, i.e. capacitor, and total disappearance of the electrical field and its energy will occur. Given, seemingly paradoxical, capacitor total energy loss can be simply explained without any dissipative effects (Joule heating or electromagnetic waves emission can be neglected as high order small corrections) by work done by the electrical field by movement of the electrons from cathode to anode. (Remarkable two capacitors paradox can be, obviously, formulated and explained in the completely analogous way.)

Darko Kapor; Vladan Pankovic

2009-12-10T23:59:59.000Z

357

Excitons in a mirror: Formation of optical bilayers using MoS{sub 2} monolayers on gold substrates  

SciTech Connect (OSTI)

We report coupling of excitons in monolayers of molybdenum disulphide to their mirror image in an underlying gold substrate. Excitons at the direct band gap are little affected by the substrate whereas strongly bound C-excitons associated with a van-Hove singularity change drastically. On quartz substrates only one C-exciton is visible (in the blue) but on gold substrates a strong red-shifted extra resonance in the green is seen. Exciton coupling to its image leads to formation of a mirror biexciton with enhanced binding energy. Estimates of this energy shift in an emitter-gold system match experiments well. The absorption spectrum of MoS{sub 2} on gold thus resembles a bilayer of MoS{sub 2} which has been created by optical coupling. Additional top-mirrors produce an optical bulk..

Mertens, Jan; Baumberg, Jeremy J., E-mail: jjb12@cam.ac.uk [Nanophotonics Centre, Cavendish Laboratory, University of Cambridge, Cambridge CB3 0HE (United Kingdom); Shi, Yumeng; Yang, Hui Ying, E-mail: yanghuiying@sutd.edu.sg [Pillar of Engineering Product Development, Singapore University of Technology and Design, Singapore 138682 (Singapore); Molina-Snchez, Alejandro; Wirtz, Ludger [Physics and Materials Science Research Unit, University of Luxembourg, L-1511 Luxembourg (Luxembourg)

2014-05-12T23:59:59.000Z

358

Exact optics V. Null tests for the mirrors of Schwarzschild's spectrograph camera  

Science Journals Connector (OSTI)

......V. Null tests for the mirrors of Schwarzschild's spectrograph camera...lies behind the primary mirror, exactly as Schwarzschild found a century ago...eccentricities of the mirrors of Schwarzschild's original design should......

R. V. Willstrop

2007-12-21T23:59:59.000Z

359

MEASUREMENT OF MIRROR PANELS USING COLOURED PATTERN DEFLECTOMETRY  

E-Print Network [OSTI]

and parabolic dish solar concentrators. Factory production of mirror panels also requires accurate measurementsMEASUREMENT OF MIRROR PANELS USING COLOURED PATTERN DEFLECTOMETRY Paul M. Scott1 , and Greg Burgess2 1 Research Assistant, Solar Thermal Group, Australian National University (ANU), Building 32 North

360

Mirror Mode Structures in the Solar Wind: STEREO Observations  

E-Print Network [OSTI]

Mirror Mode Structures in the Solar Wind: STEREO Observations O. Enríquez-Rivera1 , X. Blanco-Cano1 Autónoma de México, Coyoacán, D.F., 04510, MEXICO 2. Institute of Geophysics and Planetary Physics of California, Berkeley, CA 94720, USA Abstract. Mirror mode structures occur in the solar wind either

California at Berkeley, University of

Note: This page contains sample records for the topic "mirror experiment photo" 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.


361

Studies of Cryogenic Electron Plasmas in Magnetic Mirror Fields  

E-Print Network [OSTI]

Studies of Cryogenic Electron Plasmas in Magnetic Mirror Fields by Ramesh Gopalan A.B. (University: Chair Date Date Date University of California at Berkeley 1998 #12;Studies of Cryogenic Electron Plasmas in Magnetic Mirror Fields Copyright 1998 by Ramesh Gopalan #12;1 Abstract Studies of Cryogenic Electron

Fajans, Joel

362

Fiber optic hydrophone sensor arrays using low reflectance internal mirrors  

E-Print Network [OSTI]

A new design of fiber optic hydrophone sensor arrays phics. using low reflectance internal mirrors in optical fibers is investigated. The mirrors are produced by fusion arc splicing of two fibers, one of which has a thin film of TiO2 on the end. A...

Lee, Jong-Seo

2012-06-07T23:59:59.000Z

363

THORIUM-BASED MIRRORS IN THE EXTREME ULTRAVIOLET Nicole Farnsworth  

E-Print Network [OSTI]

THORIUM-BASED MIRRORS IN THE EXTREME ULTRAVIOLET by Nicole Farnsworth Submitted to Brigham Young Ultraviolet and Thorium-based Mirrors . . . 1 1.2 Project Background the Optical Constants of Thorium Oxide 34 3.1 Reflectance and Transmittance Measurements

Hart, Gus

364

The King Tide Photo Initiative is an international project which aims to  

E-Print Network [OSTI]

The King Tide Photo Initiative is an international project which aims to document areas flooded: Coastalatlas.net/kingtides 2. CLICK: Take the photos. The most striking photos show water next to something and orientation of your photo. 3. SHARE: Post your photos on OR's King Tide Flickr group. See our website to learn

Tullos, Desiree

365

Photothermal and thermo-refractive effects in high reflectivity mirrors at room and cryogenic temperature  

E-Print Network [OSTI]

Increasing requirements in the sensitivity of interferometric measurements is a common feature of several research fields, from gravitational wave detection to quantum optics. This motivates refined studies of high reflectivity mirrors and of noise sources that are tightly related to their structure. In this work we present an experimental characterization of photothermal and thermo-refractive effects in high reflectivity mirrors, i.e., of the variations in the position of their effective reflection plane due to weak residual power absorption. The measurements are performed by modulating the impinging power in the range 10 Hz $\\div$ 100 kHz. The experimental results are compared with an expressly derived theoretical model in order to fully understand the phenomena and exploit them to extract useful effective thermo-mechanical parameters of the coating. The measurements are extended at cryogenic temperature, where most high sensitivity experiments are performed (or planned in future versions) and where characterizations of dielectric film coatings are still poor.

Alessandro Farsi; Mario Siciliani de Cumis; Francesco Marino; Francesco Marin

2011-09-21T23:59:59.000Z

366

Nonlinear ion-cyclotron waves in mirror machines. Paper IAEA-CN-38/S-1  

SciTech Connect (OSTI)

Experimental results on ion-cyclotron waves observed in the 2XIIB mirror machine are reviewed, and relevant theoretical work is discussed. The work reported generally substantiates the quasilinear diffusion model of mirror-plasma confinement, but also suggests alternatives. The end-loss current required by theory of the drift-cyclotron loss-cone (DCLC) instability agrees with measurements of this current. The experiment indicates that an increased ratio of plasma radius to ion gyroradius improves plasma confinement. However, measurements sometimes show a second ion-cyclotron mode, which is not the DCLC mode. Theoretical work on loss-cone instabilities has concentrated on linear, quasilinear, and fully nonlinear models of increased sophistication and experimental applicability.

Cohen, B.I.; Smith, G.R.; Berk, H.L.

1980-05-22T23:59:59.000Z

367

Compact Reflective Imaging Spectrometer Design Utilizing An Immersed Grating And Anamorphic Mirror  

DOE Patents [OSTI]

A compact imaging spectrometer comprising an entrance slit, an anamorphic mirror, a grating, and a detector array. The entrance slit directs light to the anamorphic mirror. The anamorphic mirror receives the light and directs the light to the grating. The grating receives the light from the anamorphic mirror and defracts the light back onto the anamorphic mirror. The anamorphic mirror focuses the light onto a detector array.

Lerner, Scott A. (Corvalis, OR)

2006-01-10T23:59:59.000Z

368

Plasma-wall interactions in tandem mirror machines  

SciTech Connect (OSTI)

A description is presented of the plasma-surface interactions in thermal-barrier tandem-mirror machines. The thermal-barrier mode of axial confinement is an integral part of a tandem mirror, and it dictates the required plasma conditions, particularly at the surface of the plasma. For this reason, a qualitative discussion of the thermal barrier is presented first in Section 2. A brief description of the experimental configuration used in tandem mirrors to create the thermal barrier is then examined in detail in Section 3; the TMX-U and MFTF-B machines are used as specific examples. In Section 4, the relevant plasma-surface interaction issues are addressed, and experimental results from currently operating tandom mirror machines are included. Section 5 is both a summary and a discussion of future work concerned with plasma-surface interactions in tandem mirrors.

Allen, S.L.

1984-11-01T23:59:59.000Z

369

Background-reducing X-ray multilayer mirror  

DOE Patents [OSTI]

Background-reducing x-ray multilayer mirror. A multiple-layer "wavetrap" deposited over the surface of a layered, synthetic-microstructure soft x-ray mirror optimized for reflectivity at chosen wavelengths is disclosed for reducing the reflectivity of undesired, longer wavelength incident radiation incident thereon. In three separate mirror designs employing an alternating molybdenum and silicon layered, mirrored structure overlaid by two layers of a molybdenum/silicon pair anti-reflection coating, reflectivities of near normal incidence 133, 171, and 186 .ANG. wavelengths have been optimized, while that at 304 .ANG. has been minimized. The optimization process involves the choice of materials, the composition of the layer/pairs as well as the number thereof, and the distance therebetween for the mirror, and the simultaneous choice of materials, the composition of the layer/pairs, and their number and distance for the "wavetrap."

Bloch, Jeffrey J. (Los Alamos, NM); Roussel-Dupre', Diane (Los Alamos, NM); Smith, Barham W. (Los Alamos, NM)

1992-01-01T23:59:59.000Z

370

Understanding Kepler's Super-Earths and Sub-Neptunes: Insights from Thermal Evolution and Photo-Evaporation  

E-Print Network [OSTI]

Sculpted by Photo-Evaporation . . . . . . . . . . . . 1245.2.1 Improved Photo-Evaporationsignificantly sculpted by photo-evaporation. . 122 xii List

Lopez, Eric David

2014-01-01T23:59:59.000Z

371

Photo- and Semi-conductance in Molecular Single Crystals  

Science Journals Connector (OSTI)

... (1) Photo-conductance1 in molecular single crystals of the anthracene type is not an effect due primarily ... anthracene type is not an effect due primarily to impurity centres, since the dependence of photo-conductance on wave-length reproduces all inflexions of the ultra-violet absorption curve of the ...

D. J. CARSWELL; J. FERGUSON; L. E. LYONS

1954-04-17T23:59:59.000Z

372

SU Abroad Photo Contest Rules and Entry Agreement 1. Photos can be of any subject matter. Black and white or color will be accepted.  

E-Print Network [OSTI]

SU Abroad Photo Contest Rules and Entry Agreement 1. Photos can be of any subject matter. Black and white or color will be accepted. 2. All photos MUST be submitted on a CD or via email to wbviggia@syr.edu. 3. Original photos may be cropped. Only minimal manipulation of digital images is acceptable. 4

Raina, Ramesh

373

Photo-Ionization of the Hydrogen Molecule  

Science Journals Connector (OSTI)

One-center wave functions are employed to investigate the photo-ionization of the hydrogen molecule from its ground state X(1s??g1+), from 700 to 300 . It is assumed that the residual ion is left in its ground state, and the free electron is in a p?orp? orbital. Using the one-center wave functions for H2+ for the internuclear distance equal to 1. 4a0, the free-electron wave functions are obtained by solving the integrodifferential equations in exchange and polarized-orbital approximations. The oscillator strengths obtained in the polarized-orbital approximation are found to be in satisfactory agreement with the experimental data.

S. P. Khare

1968-09-05T23:59:59.000Z

374

Contained Modes In Mirrors With Sheared Rotation  

SciTech Connect (OSTI)

In mirrors with E B rotation, a fixed azimuthal perturbation in the lab frame can appear as a wave in the rotating frame. If the rotation frequency varies with radius, the plasma-frame wave frequency will also vary radially due to the Doppler shift. A wave that propagates in the high rotation plasma region might therefore be evanescent at the plasma edge. This can lead to radially localized Alfven eigenmodes with high azimuthal mode numbers. Contained Alfven modes are found both for peaked and non-peaked rotation profiles. These modes might be useful for alpha channeling or ion heating, as the high azimuthal wave number allows the plasma wave frequency in the rotating frame to exceed the ion cyclotron frequency. __________________________________________________

Abraham J. Fetterman and Nathaniel J. Fisch

2010-10-08T23:59:59.000Z

375

Soil remediation using a coupled process: soil washing with surfactant followed by photo-Fenton oxidation  

Science Journals Connector (OSTI)

In the present work the use of a coupled process, soil washing and photo-Fenton oxidation, was investigated for remediation of a soil contaminated with p,p?-DDT (DDT) and p,p?-DDE (DDE), and a soil artificially contaminated with diesel. In the soil washing experiments, Triton X-100 (TX-100) aqueous solutions were used at different concentrations to obtain wastewaters with different compositions. Removal efficiencies of 66% (DDT), 80% (DDE) and 100% (diesel) were achieved for three sequential washings using a TX-100 solution strength equivalent to 12 times the effective critical micelle concentration of the surfactant (12 CMCeff). The wastewater obtained was then treated using a solar photo-Fenton process. After 6h irradiation, 99, 95 and 100% degradation efficiencies were achieved for DDT, DDE and diesel, respectively. In all experiments, the concentration of dissolved organic carbon decreased by at least 95%, indicating that residual concentration of contaminants and/or TX-100 in the wastewater was very low. The co-extraction of metals was also evaluated. Among the metals analyzed (Pb, Cr, Ni, Cu, Cd, Mn and Co), only Cr and Mn were detected in the wastewater at concentrations above the maximum value permitted by current Brazilian legislation. The effective removal of contaminants from soil by the TX-100 washing process, together with the high degradation efficiency of the solar photo-Fenton process, suggests that this procedure could be a useful option for soil remediation.

Ricardo D. Villa; Alam G. Trov; Raquel F. Pupo Nogueira

2010-01-01T23:59:59.000Z

376

The Gasdynamic Mirror Fusion Propulsion System -- Revisited  

SciTech Connect (OSTI)

Many of the previous studies assessing the capability of the gasdynamic mirror (GDM) fusion propulsion system employed analyses that ignored the 'ambipolar' potential. This electrostatic potential arises as a result of the rapid escape of the electrons due to their small mass. As they escape, they leave behind an excess positive charge which manifests itself in an electric field that slows down the electrons while speeding up the ions until their respective axial diffusions are equalized. The indirect effect on the ions is that their confinement time is reduced relative to that of zero potential, and hence the plasma length must be increased to accommodate that change. But as they emerge from the thruster mirror - which serves as a magnetic nozzle - the ions acquire an added energy equal to that of the potential energy, and that in turn manifests itself in increased specific impulse and thrust. We assess the propulsive performance of the GDM thruster, based on the more rigorous theory, by applying it to a round trip Mars mission employing a continuous burn acceleration/deceleration type of trajectory. We find that the length of the device and travel time decrease with increasing plasma density, while the total vehicle mass reaches a minimum at a plasma density of 3 x 1016 cm-3. At such a density, and an initial DT ion temperature of 10 keV, a travel time of 60 days is found to be achievable at GDM propulsion parameters of about 200,000 seconds of specific impulse and approximately 47 kN of thrust.

Kammash, Terry [Department of Nuclear Engineering and Radiological Sciences, University of Michigan, 2355 Bonisteel Blvd, Ann Arbor, MI 48109 (United States); Tang, Ricky [Department of Aerospace Engineering, University Michigan, 1320 Beal Ave, Ann Arbor, MI 48109 (United States)

2005-02-06T23:59:59.000Z

377

Photo of the Week: August 10, 2012 | Department of Energy  

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

Photo of the Week: August 10, 2012 Photo of the Week: August 10, 2012 Photo of the Week: August 10, 2012 August 10, 2012 - 9:42am Addthis On Monday, August 6, 2012, NASA's Curiosity rover arrived on the surface of Mars to gather geological and environmental data to determine if the planet has ever had the potential to support life. This photo was taken by a navigation camera located toward the back-left of the Curiosity rover, and features part of the rover's nuclear power supply. Beyond the rover itself, Curiosity's exploration reveals the desert-like terrain of Mars's Gale Crater. | Photo courtesy of NASA/JPL-Caltech. On Monday, August 6, 2012, NASA's Curiosity rover arrived on the surface of Mars to gather geological and environmental data to determine if the planet

378

Request Photos from 2011 Secretarial Honor Awards Program | Department of  

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

Request Photos from 2011 Secretarial Honor Awards Program Request Photos from 2011 Secretarial Honor Awards Program Request Photos from 2011 Secretarial Honor Awards Program To facilitate the distribution of photographs from the 2011 Secretarial Honor Awards Program, held in the Forrestal Building, Washington, D.C. on October 27, 2011, posted here are 1) proof sheets of the photos taken (the proofs are split into two files to facilitate downloading), and 2) an order form to request which images you want to receive, what format you want them (electronic and/or prints), and quantity. Please review the proof sheets for the photos you want, fill in the form (the form is an Acrobat file and is savable from both the free Acrobat Reader as well as a web browser). If you are interested in obtaining files or prints of the photographs

379

Photo Album Of FAPAC - NM Activities | National Nuclear Security  

National Nuclear Security Administration (NNSA)

Photo Album Of FAPAC - NM Activities | National Nuclear Security Photo Album Of FAPAC - NM Activities | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Photo Album Of FAPAC - NM Activities Home > About Us > Our Locations > Albuquerque Complex > Federal Asian Pacific American Council - New Mexico Chapter Albuquerque, NM > Photo Album Of FAPAC - NM Activities

380

Photo-Spectrometer Realized In A Standard Cmos Ic Process  

DOE Patents [OSTI]

A spectrometer, comprises: a semiconductor having a silicon substrate, the substrate having integrally formed thereon a plurality of layers forming photo diodes, each of the photo diodes having an independent spectral response to an input spectra within a spectral range of the semiconductor and each of the photo diodes formed only from at least one of the plurality of layers of the semiconductor above the substrate; and, a signal processing circuit for modifying signals from the photo diodes with respective weights, the weighted signals being representative of a specific spectral response. The photo diodes have different junction depths and different polycrystalline silicon and oxide coverings. The signal processing circuit applies the respective weights and sums the weighted signals. In a corresponding method, a spectrometer is manufactured by manipulating only the standard masks, materials and fabrication steps of standard semiconductor processing, and integrating the spectrometer with a signal processing circuit.

Simpson, Michael L. (Knoxville, TN); Ericson, M. Nance (Knoxville, TN); Dress, William B. (Knoxville, TN); Jellison, Gerald E. (Oak Ridge, TN); Sitter, Jr., David N. (Tucson, AZ); Wintenberg, Alan L. (Knoxville, TN)

1999-10-12T23:59:59.000Z

Note: This page contains sample records for the topic "mirror experiment photo" 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

Photo of the Week: Real-Life Laser Device or Star Trek Set? | Department of  

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

Real-Life Laser Device or Star Trek Set? Real-Life Laser Device or Star Trek Set? Photo of the Week: Real-Life Laser Device or Star Trek Set? December 27, 2013 - 2:45pm Addthis Both! The National Ignition Facility (NIF) is a large research device located at Lawrence Livermore National Laboratory. The NIF uses powerful lasers to heat and compress hydrogen fuel to the point where nuclear fusion reactions take place. It is currently the largest and most energetic inertial confinement fusion device in the world. Researchers use the NIF to ensure the safety of nuclear weapons, explore the potential of fusion as a safe energy source, and understand how the universe was created. In this photo, NIF Team members Bruno Van Wonterghem (left), Jim Nally (pointing) and Rod Saunders watch through a newly installed viewing window, which allows the NIF team and visitors to see inside the chamber while it is vacuum-sealed for experiments.

382

2010 National Science Bowl Photos | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

0 National Science Bowl Photos 0 National Science Bowl Photos National Science Bowl® (NSB) NSB Home About National Science Bowl Contacts Regional Science Bowl Coordinators National Science Bowl FAQ's Alumni Past National Science Bowl Winners Past National Science Bowl Photos National Science Bowl Logos High School Middle School Attending National Event Volunteers 2013 Competition Results News Media WDTS Home Contact Information National Science Bowl® U.S. Department of Energy SC-27/ Forrestal Building 1000 Independence Ave., SW Washington, DC 20585 P: 202-586-6702 E: National.Science.Bowl@science.doe.gov Past National Science Bowl Photos 2010 National Science Bowl Photos Print Text Size: A A A RSS Feeds FeedbackShare Page 2010 Photos 2010 Photos 2010 Photos 2010 Photos 2010 Photos 2010 Photos 2010 Photos

383

Where in the World is Dalhousie Engineering? Engineering Alumni Magazine Photo Contest  

E-Print Network [OSTI]

Photo Contest ENTRY FORM This form must accompany each entry photographs/images. Photos and images may be submitted in digital format to the Where in the World is Dalhousie Engineering Photo Contest, either: 1

384

Two-photon Photo-emission of Ultrathin Film PTCDA Morphologies on Ag(111)  

E-Print Network [OSTI]

Two-photon Photo-emission of Ultrathin Film PTCDAwith angle-resolved two-photon photo- emission. In Stranski-probe laser pulse, h? 2 , photo-emits the electron. research

Yang, Aram

2008-01-01T23:59:59.000Z

385

Phase fluctuations and the absence of topological defects in photo-excited charge ordered nickelate  

E-Print Network [OSTI]

of topological defects in a photo-excited charge-orderedof topological defects in a photo-excited charge-orderedremains unchanged in the photo-excited transient state.

Lee, W.S.

2014-01-01T23:59:59.000Z

386

Photo-fragmentation of the closo-carboranes Part 1: Energetics of Decomposition  

E-Print Network [OSTI]

Photo-fragmentation of the closo-carboranes Part 1:is accepted) TITLE RUNNING HEAD: Photo-fragmentation of thefollowing B 1s and C 1s photo-excitation of the three

Feng, Danqin

2008-01-01T23:59:59.000Z

387

PHOTO OPTION CURRICULUM (FOR STUDENTS ENTERING fAU2011 OR LATER)  

E-Print Network [OSTI]

PHOTO OPTION CURRICULUM (FOR STUDENTS ENTERING fAU2011 OR LATER) NOTE: ALL COURSE NUMBERS .........................................................................................3 MTA 260 - Intro Color Photo): .................................................................................9 MTA 2XX - Documentary Film & Photography (3) MTA303 - Early History of Photo (3) MTA304

Dyer, Bill

388

Cyclohexene Photo-oxidation over Vanadia Catalyst Analyzed by Time Resolved ATR-FT-IR Spectroscopy  

E-Print Network [OSTI]

Cyclohexene Photo-oxidation over Vanadia Catalyst AnalyzedThe performance in the selective photo-oxidation of liquidUV radiation is required to photo-activate the catalytic

Mul, Guido

2008-01-01T23:59:59.000Z

389

Rituals of Jouissance in Annie Ernauxs LUsage de la Photo  

E-Print Network [OSTI]

Ernaux's LUsage de la photo Desire is a central concern inrecent book, LUsage de la photo, [Slide 1] suggests much ofmade love. But LUsage de la photo is not exclusively about

Van Arsdall, Lauren

2014-01-01T23:59:59.000Z

390

Optimal Light Beams and Mirror Shapes for Future LIGO Interferometers  

E-Print Network [OSTI]

We report the results of a recent search for the lowest value of thermal noise that can be achieved in LIGO by changing the shape of mirrors, while fixing the mirror radius and maintaining a low diffractional loss. The result of this minimization is a beam with thermal noise a factor of 2.32 (in power) lower than previously considered Mesa Beams and a factor of 5.45 (in power) lower than the Gaussian beams employed in the current baseline design. Mirrors that confine these beams have been found to be roughly conical in shape, with an average slope approximately equal to the mirror radius divided by arm length, and with mild corrections varying at the Fresnel scale. Such a mirror system, if built, would impact the sensitivity of LIGO, increasing the event rate of observing gravitational waves in the frequency range of maximum sensitivity roughly by a factor of three compared to an Advanced LIGO using Mesa beams (assuming all other noises remain unchanged). We discuss the resulting beam and mirror properties and study requirements on mirror tilt, displacement and figure error, in order for this beam to be used in LIGO detectors.

Mihai Bondarescu; Oleg Kogan; Yanbei Chen

2008-06-14T23:59:59.000Z

391
392

Mobile-mirror concentrators for solar thermal power plants  

SciTech Connect (OSTI)

Seven central-receiver, solar-thermal power plants with heliostat concentrators have been built around the world in the last two decades. This technology has proven to be much too expensive for commercial power plants and efforts to reduce the cost have reached an impasse. It is the nature of the solar concentrators which makes it so expensive. There are two types of concentrators: those, called heliostats, with mirrors on stationary supports, and those with mirrors on mobile supports. Mobile mirrors are potentially much cheaper than heliostats.

Ratliff, G. [Ratliff (George), Pittsburgh, PA (United States)

1999-11-01T23:59:59.000Z

393

Very highenergy ray observations of the Crab nebula and other potential sources with the GRAAL experiment  

E-Print Network [OSTI]

The ``Gamma Ray Astronomy at ALmer??�a'' (GRAAL) experiment uses 63 heliostat­mirrors with a total mirror area of an existing tower solar­power plant for this purpose. 2 The GRAAL detector CESA­1 is a heliostat field, 2 ? .360 W) at a height a.s.l. of 505 m. The 63 heliostats used for GRAAL have a mirror area of 39

394

Photo Gallery: Renewable Energy in 2013 | Department of Energy  

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

Photo Gallery: Renewable Energy in 2013 Photo Gallery: Renewable Energy in 2013 Photo Gallery: Renewable Energy in 2013 December 31, 2013 - 2:07pm Addthis April 2013: The Energy Department recognizes the nation’s first commercial enhanced geothermal system (EGS) project to supply electricity to the grid. Based in Churchill County, Nevada, Ormat Technologies’ Desert Peak 2 EGS project has increased power output of its nearby operating geothermal field by nearly 38% – providing an additional 1.7 megawatts of power to the grid and validating this emerging clean energy technology. Learn more. |

395

Photo-Fenton Reaction at Near Neutral pH  

Science Journals Connector (OSTI)

Photo-Fenton Reaction at Near Neutral pH ... The importance of the photo-Fenton reaction in contaminant degradation is discussed using measurements of Fe(II), H2O2, and probe oxidation rates in natural and simulated freshwater systems at circum-neutral pH. ... The photo-Fenton reaction, oxidation of photoproduced ferrous iron by hydrogen peroxide, produces reactive oxidants that may be important to degradation of biologically and chemically recalcitrant organic compounds in surface waters at circum-neutral pH. ...

Andrew W. Vermilyea; Bettina M. Voelker

2009-08-10T23:59:59.000Z

396

Is There a Switchable Mirror in Your Future?  

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

Is There a Switchable Mirror in Your Future? Is There a Switchable Mirror in Your Future? Speaker(s): Thomas Richardson Date: February 10, 2005 - 12:00pm Location: Bldg. 90 Seminar Host/Point of Contact: Venkat Srinivasan Electrochromic devices (switchable mirrors) that exhibit large dynamic ranges for reflectance in the visible and infrared regimes can now be made using a variety of materials. Devices incorporating these films can be used to improve energy efficiency in buildings and vehicles by controlling the flow of heat not only through windows and skylights, but also through opaque roof and wall panels. Switchable mirrors based on three completely different chemical reactions have been developed at LBNL. The best known example utilizes conversion of a thin metal film to an insulating and transparent metal hydride by either direct exposure to hydrogen gas

397

Lightweight diaphragm mirror module system for solar collectors  

DOE Patents [OSTI]

A mirror module system is provided for accurately focusing solar radiation on a point or a line as defined by an array of solar collectors. Each mirror module includes a flexible membrane stretched over a frame in a manner similar to that of a drum or a trampoline and further includes a silvered glass or plastic mirror for forming an optical reflecting surface. The configuration of the optical reflecting surface is variably adjustable to provide for the accurate focusing of the solar energy on a given collector array, e.g., a point or a linear array arrangement. The flexible mirror-membrane combination is lightweight to facilitate installation and reduce system cost yet structurally strong enough to provide for the precise focusing of the incident solar radiation in a semi-rigid reflector system in which unwanted reflector displacement is minimized.

Butler, B.L.

1984-01-01T23:59:59.000Z

398

The Mirror-Image Argument: An Additional Reply to Johansson  

Science Journals Connector (OSTI)

In previous work we have defended a version of the deprivation theory of deaths badness. (e.g., Brueckner and Fischer 1986) Part of our defense involves a reply to Lucretius Mirror-Image Argument. Lucretius p...

John Martin Fischer; Anthony Brueckner

2014-12-01T23:59:59.000Z

399

The Use of Genetic Algorithms in Multilayer Mirror Optimization  

E-Print Network [OSTI]

The Use of Genetic Algorithms in Multilayer Mirror Optimization by Shannon Lunt March 1999.3 Optimization Techniques . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 1.3.1 Local Optimizers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 1.3.2 Global Optimizers

Hart, Gus

400

EUV damage threshold measurements of Mo/Si multilayer mirrors  

Science Journals Connector (OSTI)

An EUV Schwarzschild objective consisting of two spherical, annular mirror substrates coated with Mo/Si multilayers (reflectivity...R?0.65@13.5nm) provides high EUV fluences [13]. The incidence angles on the sam...

Matthias Mller; Frank Barkusky; Torsten Feigl; Klaus Mann

2012-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "mirror experiment photo" 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

History of mirror casting, figuring, segmentation and active optics  

Science Journals Connector (OSTI)

The accurate general figures for the mirrors with which one could achieve the optimum ... the beginning of the twentieth century by Karl Schwarzschild. A first design for a reflecting telescope ... dispersing len...

Lothar Noethe

2009-08-01T23:59:59.000Z

402

Wavefront control in space with MEMS deformable mirrors  

E-Print Network [OSTI]

To meet the high contrast requirement of 1 10[superscript ?10] to image an Earth-like planet around a Sun-like star, space telescopes equipped with coronagraphs require wavefront control systems. Deformable mirrors (DMs) ...

Cahoy, Kerri L.

403

Wave-particle Interactions In Rotating Mirrors  

SciTech Connect (OSTI)

Wave-particle interactions in EB rotating plasmas feature an unusual effect: particles are diffused by waves in both potential energy and kinetic energy. This wave-particle interaction generalizes the alpha channeling effect, in which radio frequency waves are used to remove alpha particles collisionlessly at low energy. In rotating plasmas, the alpha particles may be removed at low energy through the loss cone, and the energy lost may be transferred to the radial electric field. This eliminates the need for electrodes in the mirror throat, which have presented serious technical issues in past rotating plasma devices. A particularly simple way to achieve this effect is to use a high azimuthal mode number perturbation on the magnetic field. Rotation can also be sustained by waves in plasmas without a kinetic energy source. This type of wave has been considered for plasma centrifuges used for isotope separation. Energy may also be transferred from the electric field to particles or waves, which may be useful for ion heating and energy generation.

Abraham J. Fetterman and Nathaniel J. Fisch

2011-01-11T23:59:59.000Z

404

Analysis of tandem mirror reactor performance  

SciTech Connect (OSTI)

Parametric studies are performed using a tandem mirror plasma point model to evaluate the wall loading GAMMA and the physics figure of merit, Q (fusion power/injected power). We explore the relationship among several dominant parameters and determine the impact on the plasma performance of electron cyclotron resonance heating in the plug region. These global particle and energy balance studies were carried out under the constraints of magnetohydrodynamic (MHD) equilibrium and stability and constant magnetic flux, assuming a fixed end-cell geometry. We found that the higher the choke coil fields, the higher the Q, wall loading, and fusion power due to the combination of the increased central-cell field B/sub c/ and density n/sub c/ and the reduced central-cell beta ..beta../sub c/. The MHD stability requirement of constant B/sub c//sup 2/..beta../sub c/ causes the reduction in ..beta../sub c/. In addition, a higher value of fusion power can also be obtained, at a fixed central-cell length, by operating at a lower value of B/sub c/ and a higher value of ..beta../sub c/.

Wu, K.F.; Campbell, R.B.; Peng, Y.K.M.

1984-11-01T23:59:59.000Z

405

Photo of the Week: Faster than the Speed of Light | Department of Energy  

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

Photo of the Week: Faster than the Speed of Light Photo of the Week: Faster than the Speed of Light Photo of the Week: Faster than the Speed of Light July 24, 2013 - 2:00pm Addthis If you've ever heard the thunderous sound of a sonic boom, you've experienced the shock waves in the air created by an object traveling faster than the speed of sound. But what happens when an object travels faster than the speed of light? At Jefferson Laboratory, construction is underway to upgrade the Continuous Electron Beam Accelerator Facility (CEBAF) and the CEABF Large Acceptance Spectrometer (CLAS12) at Hall B. During the experiments, the accelerator will shoot electrons at speeds faster than the speed at which light travels in the same medium, creating shock waves that emit a blue light, known as Cherenkov light -- this light is equivalent to the sonic boom. By recording data from Cherenkov light, scientists will be able to map a nucleon's three-dimensional spin.

406

Photo of the Week: The Webb Telescope's "Golden Spider" | Department of  

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

The Webb Telescope's "Golden Spider" The Webb Telescope's "Golden Spider" Photo of the Week: The Webb Telescope's "Golden Spider" September 14, 2012 - 2:32pm Addthis The James Webb Space Telescope is a large, infrared-optimized telescope that is anticipated to launch in 2018. The spider-like sheets and tubes of wires you see here are the Optical Telescope Simulator (OSIM) for the telescope itself. OSIM will help scientists prepare the Webb telescope for flight by generating a beam of light that the telescope optics will feed into its actual flight instruments. In this photo, engineers have blanketed the OSIM with special insulating material to help control its temperature while it goes into the deep freeze testing of the Space Environment Simulator at NASA's Goddard Space Flight Center in Greenbelt, Maryland. The simulator will mimic the environment that the telescope will experience in operational orbit, more than 1 million miles from Earth. | Photo credit: Chris Gunn/NASA.

407

The Photo-Ionization of the Vapors of Caesium and Rubidium  

Science Journals Connector (OSTI)

A modification of Foote and Mohler's space charge method for the measurement of photo-ionization was devised which compensated out spurious effects due to fluctuations of temperature and increased the useful sensitivity of the space charge to positive ions about one hundred fold. By measuring simultaneously photo-ionization and light intensities the following results have been obtained. In caesium, the ionization per unit light intensity B? varies with frequency ? (over the range 2200A to 3130A) according to the equation B?=const?3(?-?0) This relation also represents fairly well the experimental observations of B? in rubidium. Thus, the continuous absorption resulting in ionization decreases with wave-length much more rapidly than the analagous absorption beyond the Lyman and Balmer series limits as calculated on the wave mechanics by Sugiura, Oppenheimer, and Reiche. The results, moreover, are not even qualitatively similar to Hargreaves' calculation of the variation with frequency of B? for lithium. Assuming the principle of detailed balance it follows from these experiments that the effective collision capture cross-sections of caesium and rubidium ions for electrons vary inversely as the square of the energy of the electrons relative to the ions. This is the Thomson recombination law and has been derived on the wave mechanics by Oppenheimer for the recombination of protons and electrons. The existence of photo-ionization by absorption of principal series lines in caesium, so clearly exhibited by Mohler, Foote and Chenault, has been confirmed and also has been observed in rubidium.

Ernest O. Lawrence and N. E. Edlefsen

1929-07-15T23:59:59.000Z

408

Switchable Mirrors Based on Nickel-Magnesium Films  

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

Switchable Mirrors Based on Nickel-Magnesium Films Switchable Mirrors Based on Nickel-Magnesium Films Title Switchable Mirrors Based on Nickel-Magnesium Films Publication Type Journal Article LBNL Report Number LBNL-47180 Year of Publication 2001 Authors Richardson, Thomas J., Jonathan L. Slack, Robert D. Armitage, Robert Kostecki, Baker Farangis, and Michael D. Rubin Journal Applied Physics Letters Volume 78 Pagination 3047 Call Number LBNL-47180 Abstract An electrochromic mirror electrode based on reversible uptake of hydrogen in nickel magnesium alloy films is reported. Thin, magnesium-rich Ni-Mg films prepared on glass substrates by cosputtering from Ni and Mg targets are mirror-like in appearance and have low visible transmittance. Upon exposure to hydrogen gas or on cathodic polarization in alkaline electrolyte, the films take up hydrogen and become transparent. When hydrogen is removed, the mirror properties are recovered. The transition is believed to result from reversible formation of Mg2NiH4 and MgH2. A thin overlayer of palladium was found to enhance the kinetics of hydrogen insertion and extraction, and to protect the metal surface against oxidation.

409

Single-layer mirrors for advanced research light sources  

SciTech Connect (OSTI)

X-ray mirrors are needed for beam guidance, beam alignment and monochromatisation at third-generation synchrotron light sources (PETRA III) and forthcoming Free-Electron Lasers (LCLS, European XFEL). Amorphous carbon coatings are currently used as total reflection mirrors at FLASH to guide the photon beam to the various beamlines. These coatings were prepared by means of magnetron sputtering. The new GKSS sputtering facility for the deposition of single and multilayer mirrors with a length of up to 1500 mm and a width of up to 120 mm is in operation. In this contribution we present the results of this new deposition system. A major advantage is that it is now possible to prepare one, two or more mirrors with similar properties over the whole deposition length. The mirror properties were investigated by means of X-ray reflectometry and interference microscopy. The performance of the mirrors is analyzed, considering X-ray reflectivity, film thickness and surface roughness. The uniformity of these properties over the whole deposition length of 1500 mm is demonstrated. The results obtained will be discussed and compared with former results.

Stoermer, M.; Horstmann, C. [GKSS Research Centre Geesthacht GmbH, Institute of Materials Research, Max-Planck-Str. 1, D-21502 Geesthacht (Germany); Siewert, F. [Helmholtz Zentrum Berlin / BESSY-II, Albert-Einstein-Str. 15, 12489 Berlin (Germany); Scholze, F.; Krumrey, M. [Physikalisch-Technische Bundesanstalt (PTB), Abbestr. 2-12, 10587 Berlin (Germany); Hertlein, F.; Matiaske, M.; Wiesmann, J. [Incoatec GmbH, Max-Planck-Str. 2, D-21502 Geesthacht (Germany); Gaudin, J. [European XFEL, DESY, 22603 Hamburg (Germany)

2010-06-23T23:59:59.000Z

410

Steady state whistler turbulence and stability of thermal barriers in tandem mirrors  

Science Journals Connector (OSTI)

The effect of the whistler turbulence on anisotropic electrons in a thermal barrier is examined. The electron distribution function is derived self?consistently by solving the steady state quasilinear diffusion equation. Saturated amplitudes are computed using the resonance broadening theory or convective stabilization. Estimated power levels necessary for sustaining the steady state of a strongly anisotropic electron population are found to exceed by orders of magnitude the estimates based on FokkerPlanck calculations for the range of parameters of tandem mirror (TMX?U and MFTF?B) experiments [Nucl. Fusion 2 5 1205 (1985)]. Upper limits on the allowed degree of anisotropy for existing power densities are calculated.

C. Litwin; R. N. Sudan

1986-01-01T23:59:59.000Z

411

Steady state whistler turbulence and stability of thermal barriers in tandem mirrors  

SciTech Connect (OSTI)

The effect of the whistler turbulence on anisotropic electrons in a thermal barrier is examined. The electron distribution function is derived self-consistently by solving the steady state quasilinear diffusion equation. Saturated amplitudes are computed using the resonance broadening theory or convective stabilization. Estimated power levels necessary for sustaining the steady state of a strongly anisotropic electron population are found to exceed by orders of magnitude the estimates based on Fokker--Planck calculations for the range of parameters of tandem mirror (TMX-U and MFTF-B) experiments (Nucl. Fusion 25, 1205 (1985)). Upper limits on the allowed degree of anisotropy for existing power densities are calculated.

Litwin, C.; Sudan, R.N.

1986-11-01T23:59:59.000Z

412

Isorotation and differential rotation in a magnetic mirror with imposed E Multiplication-Sign B rotation  

SciTech Connect (OSTI)

Doppler spectroscopy of helium impurities in the Maryland Centrifugal Experiment reveals the simultaneous existence of isorotating and differentially rotating magnetic surfaces. Differential rotation occurs at the innermost surfaces and is conjectured to cause plasma voltage oscillations of hundreds of kilohertz by periodically changing the current path inductance. High-speed images show the periodic expulsion of plasma near the mirror ends at the same frequencies. In spite of this, the critical ionization velocity limit is exceeded, with respect to the vacuum field definition, for at least 0.5 ms.

Romero-Talamas, C. A.; Elton, R. C.; Young, W. C.; Reid, R.; Ellis, R. F. [Institute for Research in Electronics and Applied Physics, University of Maryland, College Park, Maryland 20742 (United States)

2012-07-15T23:59:59.000Z

413

A fluorescence method to detect photo-activated repair of UV-induced DNA damage in marine organisms  

SciTech Connect (OSTI)

After UV exposure, marine microorganisms may re-activate their photosynthetic systems or regain their pre-exposure metabolic rates, but they will not long survive, nor grow or reproduce, if they cannot repair DNA or ERN damage. Several repair mechanisms, including nucleotide excision repair and photo-reactivation, are known in terrestrial organisms, but there is little information on either process in marine microorganisms. Photo-reactivation may be especially important near the ocean surface where a few meters difference in vertical position or a few hours difference in time may alleviate UV-irradiation stress yet still provide sufficient light for photoactivated repair processes. We have developed a relatively simple, sensitive method to measure the activity of the photo-reactivation enzyme, photolyase, by fluorometry. UV irradiation causes adjacent thymine nucleotides in DNA to form cyclobutane dimers. Photolyase attaches to the dimerized DNA then breaks the dimers in a reaction catalyzed by visible light, thereby allowing restoration of cross-strand base pairing. Our assay for photolyase activity involves a dimerized synthetic DNA and DNA-specific fluorochromes with affinity for thymine-rich regions of DNA. When thymine dimers are present, fluorescence of these dyes is reduced. As dimers are repaired, fluorescence increases, allowing us to demonstrate the presence of photolyase and measure its activity using conventional fluorometers available in most marine laboratories. Photo-reactivation activity has been unambiguously demonstrated in samples of coastal seawater. In preliminary investigations, cells taken from surface slicks did not have enhanced photo-repair capabilities relative to cells collected 5 meters below the surface. Additional tests of the method and measurements of photo-repair activities of surface and subsurface organisms will be made during the SLIX-89 Surface Microlayer Experiment in October 1989.

Carlson, D.J.; Mordy, C.W.; Nelson, K. (Oregon State Univ., Corvallis (United States))

1990-01-09T23:59:59.000Z

414

Photo of the Week: June 15, 2012 | Department of Energy  

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

Photo of the Week: June 15, 2012 Photo of the Week: June 15, 2012 Photo of the Week: June 15, 2012 June 15, 2012 - 6:35pm Addthis Brian Lawson and Kenesaw Burwell install solar panels at the Energy Department's Research Support Facility -- a highly efficient building at the National Renewable Energy Laboratory in Golden, Colorado. | Credit: Dennis Schroeder, NREL. Brian Lawson and Kenesaw Burwell install solar panels at the Energy Department's Research Support Facility -- a highly efficient building at the National Renewable Energy Laboratory in Golden, Colorado. | Credit: Dennis Schroeder, NREL. April Saylor April Saylor Former Digital Outreach Strategist, Office of Public Affairs Every week, we'll feature our favorite energy-related photo here on Energy.gov, at Facebook.com/Energygov, on Twitter via @ENERGY and on our

415

Photo of the Week: Boosting Solar Technology | Department of Energy  

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

Photo of the Week: Boosting Solar Technology Photo of the Week: Boosting Solar Technology Photo of the Week: Boosting Solar Technology April 15, 2013 - 4:47pm Addthis Concentrated solar panels are getting a power boost. This summer, Pacific Northwest National Laboratory (PNNL) will be testing a new concentrated solar power system -- one that can help natural gas power plants reduce their fuel usage by up to 20 percent. PNNL has developed a system that uses a thermochemical conversion device to convert natural gas and sunlight into a more energy-rich fuel called syngas. By installing the pictured device in front of a concentrating solar power dish, power plants can burn less fuel. Learn more about concentrated solar energy at PNNL. | Photo courtesy of Pacific Northwest National Laboratory.

416

Photo of the Week: July 28, 2012 | Department of Energy  

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

Photo of the Week: July 28, 2012 Photo of the Week: July 28, 2012 Photo of the Week: July 28, 2012 July 27, 2012 - 10:43am Addthis UC Berkeley engineering student Jerome Thai launches one of 100 floating sensors into the Sacramento River. The Sacramento-San Joaquin River Delta’s channel system supports California's agricultural industry and provides drinking water for 22 million Californians. The Floating Sensor Network project is a collaborative effort between the Center for Information Technology Research in the Interest of Society (CITRIS), Berkeley Lab and its National Energy Research Scientific Computing Center (NERSC), and UC Berkeley’s Departments of Civil and Environmental Engineering and Electrical Engineering. The project will collect data to help researchers and scientists better understand how water flows from the Delta to pumping stations and the San Francisco Bay. To learn more, check out the Floating Sensor Network's press release. | Photo by Roy Kaltschmidt.

417

Photo of the Week: The Olympus Supercomputer | Department of Energy  

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

Photo of the Week: The Olympus Supercomputer Photo of the Week: The Olympus Supercomputer Photo of the Week: The Olympus Supercomputer September 5, 2013 - 2:08pm Addthis Fun fact: Most systems require air conditioning or chilled water to cool super powerful supercomputers, but the Olympus supercomputer at Pacific Northwest National Laboratory is cooled by the location's 65 degree groundwater. Traditional cooling systems could cost up to $61,000 in electricity each year, but this more efficient setup uses 70 percent less energy. PNNL's scientists use the Olympus supercomputer to conduct advanced research in areas such as energy storage and future power grid development. This supercomputer has the ability to compute as fast as about 20,000 typical personal computers combined. | Photo courtesy of PNNL.

418

Photo of the Week: Laser Beats Rock | Department of Energy  

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

Laser Beats Rock Laser Beats Rock Photo of the Week: Laser Beats Rock April 8, 2013 - 5:28pm Addthis On August 5, 2012, the Curiosity rover touched down on the surface of Mars. The ChemCam instrument package, developed at Los Alamos National Laboratory, is a device mounted on the Mars Curiosity rover that uses two remote sensing instruments: the Laser-Induced Breakdown Spectrometer (LIBS) and a Remote Micro-Imager (RMI). The LIBS fires a powerful laser that determines chemical compositions of rock and soil samples, while the RMI takes photos of the samples within the rover's vicinity. In this photo, the ChemCam is being prepared in the clean room prior to the launch of NASA's Mars Science Laboratory mission. Learn more about the ChemCam. | Photo courtesy of Los Alamos National Laboratory.

419

Photo of the Week: August 3, 2012 | Department of Energy  

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

Photo of the Week: August 3, 2012 Photo of the Week: August 3, 2012 Photo of the Week: August 3, 2012 August 3, 2012 - 12:40pm Addthis A worker suppresses dust during the final demolition stages of the historic DP West site, located at Los Alamos National Laboratory’s (LANL) Technical Area 21. The demolition was funded by the American Recovery and Reinvestment Act (ARRA) and is part of $212 million in ARRA funds the Lab received for environmental remediation. | Photo courtesy of Los Alamos National Laboratory. A worker suppresses dust during the final demolition stages of the historic DP West site, located at Los Alamos National Laboratory's (LANL) Technical Area 21. The demolition was funded by the American Recovery and Reinvestment Act (ARRA) and is part of $212 million in ARRA funds the Lab

420

Photo of the Week: 2013 | Department of Energy  

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

Photo of the Week: 2013 Photo of the Week: 2013 Photo of the Week: 2013 Addthis An Express Train to Crescent Junction 1 of 45 An Express Train to Crescent Junction In the 1950s, one of the largest uranium deposits in the U.S. was found near Moab, Utah. The Department of Energy began cleaning up the uranium mill tailings from the Moab Site in April 2009, using steel containers to transport more than five million tons of tailings for safe disposal near Crescent Junction, Utah. In this May 2012 photo, one of the trains is shown on the Union Pacific Railroad in Utah, passing a butte capped by a familiar southwest U.S. rock formation known as Navajo Sandstone. Image: Department of Energy Date taken: 2013-01-04 09:00 I, Robot Olympics 2 of 45 I, Robot Olympics Last week, students from dozens of local Tennessee high schools gathered at

Note: This page contains sample records for the topic "mirror experiment photo" 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

Further research on the photo-SPME of triclosan  

Science Journals Connector (OSTI)

In this study the photoinduced degradation of triclosan has been investigated by photo-solid-phase ... the SPME fibre containing the target compound. Triclosan was extracted from aqueous solutions by use ... to 6...

Lucia Snchez-Prado; Maria Llompart; Marta Lores

2006-04-01T23:59:59.000Z

422

Measurement of Thermal Neutron Flux in Photo-Neutron Source  

Science Journals Connector (OSTI)

The Photo-Neutron Source (PNS) project is a study ... design, simulation and construction an accelerator based neutron source for Boron Neutron Capture Therapy (BNCT). The system uses ... medical linear accelerat...

A. Taheri; A. Torkamani; A. Pazirandeh

2013-01-01T23:59:59.000Z

423

A Configurable Photo Browser Framework for Large Image Collections  

Science Journals Connector (OSTI)

Image collections are growing at an exponential rate due to the wide availability of inexpensive digital cameras and storage. Current browsers organize photos mostly chronologically, or according to manual tag...

Frode Eika Sandnes

2011-01-01T23:59:59.000Z

424

Photo: US ITER/ORNL INSIDE: ITER Site Progress  

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

gears and top of the twin-screw extruder mechanism of the prototype developed for ITER. Photo: US ITERORNL INSIDE: ITER Site Progress View from DOE US Systems Update ITER Magazine...

425

Photo of the Week: LBNL Takes Over @Energy's Instagram! | Department...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

LBNL Takes Over @Energy's Instagram Photo of the Week: LBNL Takes Over @Energy's Instagram May 15, 2014 - 3:16pm Addthis All day today, Lawrence Berkeley National Lab is taking...

426

Photo-Thermal Effects in Fiber Bragg Gratings  

Science Journals Connector (OSTI)

The photo-thermal effect describes the absorption of light and a change in grating characteristics via dn/dT, which can mask fast non-linear optical effects. The effect is...

Littler, Ian C; Grujic, Thomas; Eggleton, Benjamin J

427

Photo of the Week: The 2014 National Science Bowl | Department...  

Energy Savers [EERE]

The 2014 National Science Bowl Photo of the Week: The 2014 National Science Bowl May 1, 2014 - 4:06pm Addthis This weekend, middle and high school students from across the country...

428

Photo of the Week: the 2014 Washington Auto Show | Department...  

Energy Savers [EERE]

learn about energy and earn merit badges and patches. In this photo, a Boy Scout watches light shine on a solar panel that's powering a hydrogen fuel cell system, showing how...

429

Photo of the Week: Air Supply | Department of Energy  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

learn about energy and earn merit badges and patches. In this photo, a Boy Scout watches light shine on a solar panel that's powering a hydrogen fuel cell system, showing how...

430

3D exploitation of large urban photo archives  

E-Print Network [OSTI]

Recent work in computer vision has demonstrated the potential to automatically recover camera and scene geometry from large collections of uncooperatively-collected photos. At the same time, aerial ladar and Geographic ...

Snavely, Noah

431

Reversible photo-switching in a cell-sized vesicle  

E-Print Network [OSTI]

A photosensitive amphiphilic molecule can switch the shape of an assembled vesicle as determined by microscopic observation. Photo-isomerization induces a change in membrane fluctuation behavior or a morphological transition between ellipsoid and bud shapes, depending on the asymmetrical degree of the initial shape. The mechanism of this reversible photo-switching in the vesicle morphology is interpreted in terms of a change in the effective cross-sectional area of the photosensitive molecule.

Tsutomu Hamada; Yuko T. Sato; Takeshi Nagasaki; Kenichi Yoshikawa

2005-05-07T23:59:59.000Z

432

Long-Working-Distance Kirkpatrick-Baez Mirrors for Hard X-ray Beamlines at SPring-8  

SciTech Connect (OSTI)

We designed and installed two types of long-working-distance Kirkpatrick-Baez (KB) mirrors and mirror manipulators, which were customized into each experiment for hard x-ray undulator beamlines at SPring-8. For the BL32XU RIKEN Targeted Proteins beamline, 400-mm-long KB focusing mirrors for a beam size of 1 {mu}m with a 730-mm-long working distance were designed for carrying out the structural analysis of protein microcrystals. We realized a focusing beam size of 0.9x0.9 {mu}m{sup 2}(FWHM) and a focusing intensity of 6x10{sup 10} (photons/s) at an x-ray energy of 12.4 keV. For the BL19LXU RIKEN SR Physics beamline, we developed KB mirrors for 100-nm focusing with a 100-mm-working distance for the purpose of nano-focus x-ray diffraction. A focusing beam size of 100x100 nm{sup 2}(FWHM) and a high focusing intensity of 3.7x10{sup 10} (photons/s) at an x-ray energy of 12.4 keV were realized.

Yumoto, H.; Koyama, T. [Japan Synchrotron Radiation Research Institute (JASRI)/SPring-8, 1-1-1, Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198 (Japan); Hirata, K.; Kawano, Y.; Ueno, G.; Nisawa, A.; Hikima, T.; Takeshita, S.; Ito, K.; Tanaka, Y.; Arima, T.; Yamamoto, M. [RIKEN/SPring-8, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5148 (Japan); Ohsumi, H.; Ohashi, H.; Goto, S. [Japan Synchrotron Radiation Research Institute (JASRI)/SPring-8, 1-1-1, Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198 (Japan); RIKEN/SPring-8, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5148 (Japan)

2011-09-09T23:59:59.000Z

433

MetaXa--Context-and content-driven metadata enhancement for personal photo books  

E-Print Network [OSTI]

MetaXa--Context- and content-driven metadata enhancement for personal photo books Susanne Boll1We Color AG & Co. OHG, Germany thieme@cewecolor.com Abstract. Making a photo book as a special gift to your the pages of a previously bought photo book. In these days, photo finisher companies are able to directly

Boll, Susanne

434

Pt IB Paper 8 Photo Editing Course 1 Part IB Paper 8  

E-Print Network [OSTI]

Pt IB Paper 8 Photo Editing Course 1 Part IB Paper 8 Information Engineering Option A ­ Photo. Lecture 6: Examples Class Contents 1 Program Framework for the Photo Editor 5 1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 #12;2 Pt IB Paper 8 Photo Editing Course 4 Rotating the image: ph rotate 25 4.1 The script ph

Kingsbury, Nick

435

COMMUNICATIONS OF THE ACM April 2006/Vol. 49, No. 4 69 FIND THAT PHOTO!  

E-Print Network [OSTI]

COMMUNICATIONS OF THE ACM April 2006/Vol. 49, No. 4 69 FIND THAT PHOTO! Interface Strategies to Annotate, Browse, and Share As digital photos become the standard media for personal photo taking, supporting users to explore those photos becomes a vital goal. Dominant strategies that have emerged involve

Golbeck, Jennifer

436

Automatic Photo Ranking Based on Esthetics Rules of Photography Wai-Seng Ng  

E-Print Network [OSTI]

Automatic Photo Ranking Based on Esthetics Rules of Photography Wai-Seng Ng Hong-Cheng Kao Che randomly-selected photos from the Flickr website. Here we show two photos (left two) out of the top 100 and three photos (right three) out of the worst 100. A user study of 10 subjects corroborates with our

Ouhyoung, Ming

437

Immediate Usability: A case study of public access design for a community photo library  

E-Print Network [OSTI]

1 Immediate Usability: A case study of public access design for a community photo library Bill describes a novel instantiation of a digital photo library in a public access system. It demonstrates how developing PhotoFinder Kiosk, a community photo library. Attendees of a major HCI conference (CHI 2001

Shneiderman, Ben

438

Do Mirrors for Gravitational Waves Exist?  

E-Print Network [OSTI]

Thin superconducting films are predicted to be highly reflective mirrors for gravitational waves at microwave frequencies. The quantum mechanical non-localizability of the negatively charged Cooper pairs, which is protected from the localizing effect of decoherence by an energy gap, causes the pairs to undergo non-picturable, non-geodesic motion in the presence of a gravitational wave. This non-geodesic motion, which is accelerated motion through space, leads to the existence of mass and charge supercurrents inside the superconducting film. On the other hand, the decoherence-induced localizability of the positively charged ions in the lattice causes them to undergo picturable, geodesic motion as they are carried along with space in the presence of the same gravitational wave. The resulting separation of charges leads to a virtual plasma excitation within the film that enormously enhances its interaction with the wave, relative to that of a neutral superfluid or any normal matter. The existence of strong mass supercurrents within a superconducting film in the presence of a gravitational wave, dubbed the "Heisenberg-Coulomb effect," implies the specular reflection of a gravitational microwave from a film whose thickness is much less than the London penetration depth of the material, in close analogy with the electromagnetic case. The argument is developed by allowing classical gravitational fields, which obey Maxwell-like equations, to interact with quantum matter, which is described using the BCS and Ginzburg-Landau theories of superconductivity, as well as a collisionless plasma model. Several possible experimental tests of these ideas, including mesoscopic ones, are presented alongside comments on the broader theoretical implications of the central hypothesis.

Stephen J. Minter; Kirk Wegter-McNelly; Raymond Y. Chiao

2009-06-30T23:59:59.000Z

439

Black hole firewalls, smoke and mirrors  

Science Journals Connector (OSTI)

The radiation emitted by a black hole (BH) during its evaporation has to have some degree of quantum coherence to accommodate a unitary time evolution. We parametrize the degree of coherence by the number of coherently emitted particles Ncoh and show that it is severely constrained by the equivalence principle. We discuss, in this context, the fate of a shell of matter that falls into a Schwarzschild BH. Two points of view are considered: that of a stationary external observer and that of the shell itself. From the perspective of the shell, the near-horizon region has an energy density proportional to Ncoh2 in Schwarzschild units. So, if Ncoh is parametrically larger than the square root of the BH entropy SBH1/2, a firewall or more generally a wall of smoke forms and the equivalence principle is violated while the BH is still semiclassical. To have a degree of coherence that is parametrically smaller than SBH1/2, one has to introduce a new sub-Planckian gravitational length scale, which likely also violates the equivalence principle. And so our previously proposed model which has Ncoh=SBH1/2 is singled out. From the external-observer perspective, we find that the time it takes for the information about the state of the shell to get re-emitted from the BH is inversely proportional to Ncoh. When the rate of information release becomes of order unity, the semiclassical approximation starts to break down and the BH becomes a perfect reflecting information mirror.

Ram Brustein and A.?J.?M. Medved

2014-07-16T23:59:59.000Z

440

Photo-induced charge transfer across the interface between organic molecular crystals and polymers  

E-Print Network [OSTI]

Photo-induced charge transfer of positive and negative charges across the interface between an ordered organic semiconductor and a polymeric insulator is observed in the field-effect experiments. Immobilization of the transferred charge in the polymer results in a shift of the field-effect threshold of polaronic conduction along the interface in the semiconductor, which allows for direct measurements of the charge transfer rate. The transfer occurs when the photon energy exceeds the absorption edge of the semiconductor. The direction of the transverse electric field at the interface determines the sign of the transferred charge; the transfer rate is controlled by the field magnitude and light intensity.

V. Podzorov; M. E. Gershenson

2004-11-23T23:59:59.000Z

Note: This page contains sample records for the topic "mirror experiment photo" 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

Photo of the Week: An Incredible Journey -- Transporting a 50-ton Magnet |  

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

An Incredible Journey -- Transporting a 50-ton An Incredible Journey -- Transporting a 50-ton Magnet Photo of the Week: An Incredible Journey -- Transporting a 50-ton Magnet July 11, 2013 - 4:38pm Addthis The Muon g-2 (pronounced gee minus two) is an experiment that will use the Fermilab accelerator complex to create an intense beam of muons -- a type of subatomic particle -- traveling at the speed of light. The experiment is picking up after a previous muon experiment at Brookhaven National Laboratory, which concluded in 2001. In this photo, the massive electromagnet is beginning its 3,200-mile journey from the woods of Long Island to the plains near Chicago, where scientists at Fermilab will refill its storage ring with muons created at Fermilab’s Antiproton Source. The 50-foot-diameter ring is made of steel, aluminum and superconducting wire. It will travel down the East Coast, around the tip of Florida, and up the Mississippi River to Fermilab in Illinois. Transporting the 50-ton device by truck requires meticulous precision -- just a tilt or a twist of a few degrees could leave the internal wiring irreparably damaged.

442

Plasma heating and hot ion sustaining in mirror based hybrids  

SciTech Connect (OSTI)

Possibilities of plasma heating and sloshing ion sustaining in mirror based hybrids are briefly reviewed. Sloshing ions, i.e. energetic ions with a velocity distribution concentrated to a certain pitch-angle, play an important role in plasma confinement and generation of fusion neutrons in mirror machines. Neutral beam injection (NBI) is first discussed as a method to generate sloshing ions. Numerical results of NBI modeling for a stellarator-mirror hybrid are analyzed. The sloshing ions could alternatively be sustained by RF heating. Fast wave heating schemes, i.e. magnetic beach, minority and second harmonic heating, are addressed and their similarities and differences are described. Characteristic features of wave propagation in mirror hybrid devices including both fundamental harmonic minority and second harmonic heating are examined. Minority heating is efficient for a wide range of minority concentration and plasma densities; it allows one to place the antenna aside from the hot ion location. A simple-design strap antenna suitable for this has good performance. However, this scenario is appropriate only for light minority ions. The second harmonic heating can be applied for the heavy ion component. Arrangements are similar for minority and second harmonic heating. The efficiency of second harmonic heating is influenced by a weaker wave damping than for minority heating. Numerical calculations show that in a hybrid reactor scaled mirror machine the deuterium sloshing ions could be heated within the minority heating scheme, while the tritium ions could be sustained by second harmonic heating.

Moiseenko, V. E.; Agren, O. [Institute of Plasma Physics, National Science Center 'Kharkiv Institute of Physics and Technology', Akademichna St. 1, 61108 Kharkiv (Ukraine); Uppsala University, Angstroem Laboratory, Division of Electricity, Box 534, SE-75121 Uppsala (Sweden)

2012-06-19T23:59:59.000Z

443

Micro Mirrors for High-speed Laser Deflection and Patterning  

Science Journals Connector (OSTI)

Abstract This paper focuses on high-speed optical MEMS Scanners and Micro Mirror Arrays. Devices supporting spot/pixel rateshigher than 10 Mpixel/s are considered and discussed regarding limits and possibilities to further improve speed and optical properties. Several variants of both types, developed by our group, are presented. Scanning Micro Mirrors with frequencies up to 100kHz enable spot rates of up to 130 Mpixels / s at 650nm. Bragg-coatings enable high power applications up to 20 W (beam 2mm). Challenges like static and dynamic mirror planariy are discussed. A 29-kHz-scanner for laser projection serves as application example. Highly parallel operated Micro Mirror Arrays extend pattern speed to 10 Gpixel / s including analog grey scaling. Irradiation tests prove stable operation of the mirrors at DUV. Prospects regarding optical planarity and high reflective coatings are discussed. By means of two examples, laser patterning of semiconductor masks and laser patterning of Printed Circuit Boards, properties of the spatial light modulators are presented. The two device classes are compared regarding spot/pixel rate and frequency. The comparison includes representative MEMS device examples from literature.

Harald Schenk; Jan Grahmann; Thilo Sandner; Michael Wagner; Ulrike Dauderstdt; Jan-Uwe Schmidt

2014-01-01T23:59:59.000Z

444

Measurements Of Spin Observables In Pseudoscalar-Meson Photo-Production Using Polarized Neutrons In Solid HD  

SciTech Connect (OSTI)

Psuedo-scalar meson photo production measurements have been carried out with longitudinally-polarized neutrons using the circularly and linearly polarized photon beams and the CLAS at Thomas Jefferson National Accelerator Facility (Jlab). The experiment aims to obtain a complete set of spin observables on an efficient neutron target. Preliminary E asymmetries for the exclusive reaction, gamma + n(p)--> pi- + p(p), selecting quasi free neutron kinematics are discussed.

Kageya, Tsuneo

2014-01-01T23:59:59.000Z

445

Measurements of spin observables in pseudo-scalar meson photo-production using polarized neutrons in solid HD  

SciTech Connect (OSTI)

A measurement of psuedo-scalar meson photo production from longitudinally polarized solid HD has been carried out with the CLAS at Thomas Jefferson National Accelerator Facility (Jlab) with circularly and linearly polarized photon beams. Its aim is to measure a complete set of spin observables for the neutron simultaneously from the same experiment. As a polarized neutron, deutron in HD was used. Preliminary asymmetries are shown for the {pi}{sup -} channel.

Kageya, Tsuneo [JLAB, Newport News, VA (United States)

2014-01-01T23:59:59.000Z

446

Thermal characteristics of a classical solar telescope primary mirror  

E-Print Network [OSTI]

We present a detailed thermal and structural analysis of a 2m class solar telescope mirror which is subjected to a varying heat load at an observatory site. A 3-dimensional heat transfer model of the mirror takes into account the heating caused by a smooth and gradual increase of the solar flux during the day-time observations and cooling resulting from the exponentially decaying ambient temperature at night. The thermal and structural response of two competing materials for optical telescopes, namely Silicon Carbide -best known for excellent heat conductivity and Zerodur -preferred for its extremely low coefficient of thermal expansion, is investigated in detail. The insight gained from these simulations will provide a valuable input for devising an efficient and stable thermal control system for the primary mirror.

Banyal, Ravinder K

2011-01-01T23:59:59.000Z

447

Coil system for a mirror-based hybrid reactor  

SciTech Connect (OSTI)

Two different superconducting coil systems for the SFLM Hybrid study - a quadrupolar mirror based fusion-fission reactor study - are presented. One coil system is for a magnetic field with 2 T at the midplane and a mirror ratio of four. This coil set consists of semiplanar coils in two layers. The alternative coil system is for a downscaled magnetic field of 1.25 T at the midplane and a mirror ratio of four, where a higher {beta} is required to achieve sufficient the neutron production. This coil set has one layer of twisted 3D coils. The 3D coils are expected to be considerably cheaper than the semiplanar, since NbTi superconductors can be used for most coils instead of Nb3Sn due to the lower magnetic field.

Hagnestal, A.; Agren, O.; Moiseenko, V. E. [Uppsala University, Angstroem laboratory, Division of Electricity, Box 534, SE-751 21 Uppsala (Sweden); Institute of Plasma Physics, National Science Center 'Kharkov Institute of Physics and Technology', Akademichna st. 1, 61108 Kharkiv (Ukraine)

2012-06-19T23:59:59.000Z

448

Mirror eclipses in the cataclysmic variable IP Peg  

E-Print Network [OSTI]

We present time resolved K-band infrared spectra of the dwarf nova (DN) IP Peg in early quiescence. The Brackett-gamma and HeI lines in our data show hitherto unseen behaviour, which we term a mirror eclipse, and interpret as an eclipse of the secondary star by an optically thin accretion disc. Mirror eclipses are a direct probe of the structure and physical conditions of accretion discs. For example, on assuming the relevant level populations to be in LTE, we constrain the temperature and density of the optically thin material causing the mirror eclipse to be 10,000 < T < 20,000 K and \\rho ~10^-11 g/cm^3 respectively. In order to match our data we find that at least the outermost 20% of the disc (in radius) must be entirely optically thin. Implications for time-dependant disc models are examined.

S. P. Littlefair; V. S. Dhillon; T. R. Marsh; E. T. Harlaftis

2001-06-11T23:59:59.000Z

449

Surface Slope Metrology on Deformable Soft X-ray Mirrors  

SciTech Connect (OSTI)

We report on the current state of surface slope metrology on deformable mirrors for soft x-rays at the Advanced Light Source (ALS). While we are developing techniques for in situ at-wavelength tuning, we are refining methods of ex situ visible-light optical metrology to achieve sub-100-nrad accuracy. This paper reports on laboratory studies, measurements and tuning of a deformable test-KB mirror prior to its use. The test mirror was bent to a much different optical configuration than its original design, achieving a 0.38 micro-radian residual slope error. Modeling shows that in some cases, by including the image conjugate distance as an additional free parameter in the alignment, along with the two force couples, fourth-order tangential shape errors (the so-called bird shape) can be reduced or eliminated.

Yuan Sheng; Yashchuk, Valeriy V.; Celestre, Rich; Church, Matthew; McKinney, Wayne R.; Morrison, Greg; Warwick, Tony [Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA 94720 (United States); Goldberg, Kenneth A. [Center for X-ray Optics, Lawrence Berkeley National Laboratory, Berkeley, CA 94720 (United States)

2010-06-23T23:59:59.000Z

450

IR Spectrometer Using 90-degree Off-axis Parabolic Mirrors  

SciTech Connect (OSTI)

A gated spectrometer has been designed for real-time, pulsed infrared (IR) studies at the National Synchrotron Light ource at the Brookhaven National Laboratory. A pair of 90-degree, off-axis parabolic mirrors are used to relay the light from an entrance slit to an output IR recording camera. With an initial wavelength range of 15004500 nm required, gratings could not be used in the spectrometer because grating orders would overlap. A magnesium oxide prism, placed between these parabolic mirrors, serves as the dispersion element. The spectrometer is doubly telecentric. With proper choice of the air spacing between the prism and the second parabolic mirror, any spectral region of interest within the InSb camera arrays sensitivity region can be recorded. The wavelengths leaving the second parabolic mirror are collimated, thereby relaxing the camera positioning tolerance. To set up the instrument, two different wavelength (visible) lasers are introduced at the entrance slit and made collinear with the optical axis via flip mirrors. After dispersion by the prism, these two laser beams are directed to tick marks located on the outside housing of the gated IR camera. This provides first-order wavelength calibration for the instrument. Light that is reflected off the front prism face is coupled into a high-speed detector to verify steady radiance during the gated spectral imaging. Alignment features include tick marks on the prism and parabolic mirrors. This instrument was designed to complement singlepoint pyrometry, which provides continuous time histories of a small collection of spots from shock-heated targets.

Robert M. Malone, Richard, G. Hacking, Ian J. McKenna, and Daniel H. Dolan

2008-09-02T23:59:59.000Z

451

Can mirror matter solve the the cosmological lithium problem?  

SciTech Connect (OSTI)

The abundance of lithium-7 confronts cosmology with a long lasting inconsistency between the predictions of standard Big Bang Nucleosynthesis with the baryonic density determined from the Cosmic Microwave Background observations on the one hand, and the spectroscopic determination of the lithium-7 abundance on the other hand. We investigated the influence of the existence of a mirror world, focusing on models in which mirror neutrons can oscillate into ordinary neutrons. Such a mechanism allows for an effective late time neutron injection, which induces an increase of the destruction of beryllium-7and thus a lower final lithium-7 abundance.

Coc, Alain [Centre de Sciences Nuclaires et de Sciences de la Matire (CSNSM), CNRS/IN2P3, Universit Paris Sud 11, UMR 8609, Btiment 104, 91405 Orsay Campus (France); Uzan, Jean-Philippe; Vangioni, Elisabeth [Institut d'Astrophysique de Paris, UMR-7095 du CNRS, Universit Pierre et Marie Curie, 98 bis bd Arago, 75014 Paris, France and Sorbonne Universits, Institut Lagrange de Paris, 98 bis bd Arago, 75014 Paris (France)

2014-05-02T23:59:59.000Z

452

Normal incidence x-ray mirror for chemical microanalysis  

DOE Patents [OSTI]

An x-ray mirror for both electron column instruments and micro x-ray fluorescence instruments for making chemical, microanalysis comprises a non-planar mirror having, for example, a spherical reflecting surface for x-rays comprised of a predetermined number of alternating layers of high atomic number material and low atomic number material contiguously formed on a substrate and whose layers have a thickness which is a multiple of the wavelength being reflected. For electron column instruments, the wavelengths of interest lie above 1.5nm, while for x-ray fluorescence instruments, the range of interest is below 0.2nm. 4 figs.

Carr, M.J.; Romig, A.D. Jr.

1987-08-05T23:59:59.000Z

453

ATLAS and CMS hints for a mirror Higgs boson  

E-Print Network [OSTI]

ATLAS and CMS have provided hints for the existence of a Higgs-like particle with mass of about 144 GeV with production cross section into standard decay channels which is about 50% that of the standard model Higgs boson. We show that this 50% suppression is exactly what the mirror matter model predicts when the two scalar mass eigenstates, each required to be maximal admixtures of a standard and mirror-Higgs boson, are separated in mass by more than their decay widths but less than the experimental resolution. We discuss prospects for the future confirmation of this interesting hint for non-standard Higgs physics.

Robert Foot; Archil Kobakhidze; Raymond R. Volkas

2011-11-10T23:59:59.000Z

454

Detection of atmospheric Cherenkov radiation using solar heliostat mirrors  

E-Print Network [OSTI]

The gamma-ray energy region between 20 and 250 GeV is largely unexplored. Ground-based atmospheric Cherenkov detectors offer a possible way to explore this region, but large Cherenkov photon collection areas are needed to achieve low energy thresholds. This paper discusses the development of a Cherenkov detector using the heliostat mirrors of a solar power plant as the primary collector. As part of this development, we built a prototype detector consisting of four heliostat mirrors and used it to record atmospheric Cherenkov radiation produced in extensive air showers created by cosmic ray particles.

Ong, R A

1996-01-01T23:59:59.000Z

455

ATLAS and CMS hints for a mirror Higgs boson  

Science Journals Connector (OSTI)

ATLAS and CMS have provided hints for the existence of a Higgs-like particle with mass of about 144GeV with production cross section into standard decay channels which is about 50% that of the standard model Higgs boson. We show that this 50% suppression is exactly what the mirror matter model predicts when the two scalar mass eigenstates, each required to be maximal admixtures of a standard and mirror-Higgs boson, are separated in mass by more than their decay widths but less than the experimental resolution. We discuss prospects for the future confirmation of this interesting hint for nonstandard Higgs physics.

Robert Foot; Archil Kobakhidze; Raymond R. Volkas

2011-11-28T23:59:59.000Z

456

Photo of the Week: I, Robot Rodeo | Department of Energy  

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

I, Robot Rodeo I, Robot Rodeo Photo of the Week: I, Robot Rodeo November 7, 2013 - 4:28pm Addthis This past summer, Sandia National Laboratories hosted the 2013 Robot Rodeo – a 10-event technical challenge that determines the best robot designs for diffusing dangerous situations. The rodeo is a free event that usually includes entries from police departments and military bases in nearby states. By developing these technologies, robots could potentially remove the danger to humans from the first response to unknown or dangerous situations. Challenges typically include diffusing a trip wire or boring a hole through a wall to peer through with an electronic eye. In this photo, a robot investigates a bomb threat challenge at an arcade. The operators are not allowed to turn on the lights or turn off the machines, complicating the challenge. | Photo by Randy Montoya, Sandia National Laboratories.

457

Photo of the Week: The Alternating Gradient Synchrotron | Department of  

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

The Alternating Gradient Synchrotron The Alternating Gradient Synchrotron Photo of the Week: The Alternating Gradient Synchrotron March 11, 2013 - 6:00pm Addthis Since 1960, the Alternating Gradient Synchrotron (AGS) has been one of the world's premiere particle accelerators, well known for the three Nobel Prizes won as a result of research performed there. The AGS name is derived from the concept of alternating gradient focusing, in which the field gradients of the accelerator's 240 magnets are successively alternated inward and outward, permitting particles to be propelled and focused in both the horizontal and vertical plane at the same time. In this 1958 photo, giant magnets await installation into the AGS accelerator ring tunnel at Brookhaven National Laboratory. | Photo courtesy of Brookhaven National Laboratory.

458

Photo of the Week: Bright Ideas | Department of Energy  

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

Bright Ideas Bright Ideas Photo of the Week: Bright Ideas November 21, 2013 - 3:47pm Addthis This week, the Energy Department's digital team has been focusing on the rivalry between two of history's most important energy-related engineers: Thomas Edison and Nikola Tesla. Edison and Tesla's developments in electric power generation and distribution made possible many later breakthroughs. This 1951 photo shows a simple string of four 100-watt light bulbs powered by the first useful electricity ever produced by nuclear power, generated on December 20, 1951, by Argonne's Experimental Breeder Reactor 1. | Photo courtesy of Argonne National Laboratory. This week, the Energy Department's digital team has been focusing on the rivalry between two of history's most important energy-related engineers:

459

Photo of the Week: Identifying and Protecting Alaskan Fishery Habitats |  

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

Identifying and Protecting Alaskan Fishery Identifying and Protecting Alaskan Fishery Habitats Photo of the Week: Identifying and Protecting Alaskan Fishery Habitats September 27, 2013 - 3:08pm Addthis This aerial photo shows open water and floating ice on ponds, lakes and river channels in the Sagavanirktok River Delta in Alaska’s North Slope. PNNL scientists employed satellite technology to understand the impacts of oil development activities on the environment. Using satellite radar to “see” through the ice, scientists detected critical fish overwintering habitats by identifying where ice was grounded and where it was floating. Utilizing this information on critical habitats, fishery managers can suggest locations for energy development activities that increase the sustainability of fishery resources and minimize environmental impacts. Research was funded by the U.S. Department of the Interior. | Photo courtesy of Pacific Northwest National Laboratory.

460

Photo of the Week: Reactive Ion Etching | Department of Energy  

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

Reactive Ion Etching Reactive Ion Etching Photo of the Week: Reactive Ion Etching October 17, 2013 - 1:26pm Addthis Have you ever heard of Laue lenses? These multilayer lenses are used to focus high-intensity x-ray beams to show the details of nano material structures. In this photo, the drop-like domes were carved through a process called reactive ion etching, which produced the striped bubbles you see in the Laue lens. The prototype in this image helped scientists perfect the process of creating lenses so precise that scientists are able to focus x-rays to within a single nanometer. | Photo courtesy of Brookhaven National Laboratory. Have you ever heard of Laue lenses? These multilayer lenses are used to focus high-intensity x-ray beams to show the details of nano material

Note: This page contains sample records for the topic "mirror experiment photo" 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.


461

Photo of the Week: June 29, 2012 | Department of Energy  

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

June 29, 2012 June 29, 2012 Photo of the Week: June 29, 2012 June 29, 2012 - 4:06pm Addthis This slice can help sequester carbon. The x-ray microtomography image shows a slice of biofilm grown on a porous hollow fiber (500 microns in diameter). By working with the chemical and physical interactions of biofilms, we can gain insight into how microorganisms can help sequester carbon, reducing environmental impact. This photo was submitted to Pacific Northwest National Lab's 2012 Science as Art Contest by Mathew Thomas and the Systems Toxicology Group. Receiving the most likes on Facebook, this photo won the People's Choice award and will appear in the Lab's 2013 Calendar. This slice can help sequester carbon. The x-ray microtomography image shows a slice of biofilm grown on a porous hollow fiber (500 microns in

462

Ningbo Qixin Photo electricity Co Ltd | Open Energy Information  

Open Energy Info (EERE)

Qixin Photo electricity Co Ltd Qixin Photo electricity Co Ltd Jump to: navigation, search Name Ningbo Qixin Photo-electricity Co Ltd Place Ningbo, Zhejiang Province, China Zip 315000 Sector Solar Product Manufactures mon- and poly- crystalline silicon solar modules, and solar lamps. Coordinates 29.87096°, 121.543549° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":29.87096,"lon":121.543549,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

463

Photo of the Week: July 20, 2012 | Department of Energy  

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

Photo of the Week: July 20, 2012 Photo of the Week: July 20, 2012 Photo of the Week: July 20, 2012 July 20, 2012 - 1:53pm Addthis Jonathan Wiley and Eric Kuntzelman rappel more than 300 feet off the ground from a 3 megawatt wind turbine at the National Wind Technology Center (NWTC) near Boulder, CO. The Energy Department has made significant investments in wind testing facilities like the NWTC. By supporting the testing and validation of newly developed technologies, we are working to reduce costs for manufacturers, speed deployment of next generation technologies, and promote the growth of American companies. To learn more, check out our blog Blades of Glory: Wind Technology Bringing Us Closer to a Clean Energy Future | Image: Dennis Schroeder

464

Photo of the Week: Wheat and Wind | Department of Energy  

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

Wheat and Wind Wheat and Wind Photo of the Week: Wheat and Wind December 14, 2012 - 2:33pm Addthis From 262 feet in the air, 90 General Electric towers rise over Wheatland County, Montana, generating electricity for portions of the northwest United States. With an installed capacity of 135 MW, the Judith Gap Energy Center is one of the strongest wind farms in Montana. The blades begin spinning when winds reach just eight miles per hour, and at their highest point, tower almost 400 feet above the ground. In this photo, the wind turbines rotate while overlooking Wheatland County's main agricultural product: wheat. | Photo courtesy of Idaho National Laboratory Wind Energy Program. From 262 feet in the air, 90 General Electric towers rise over Wheatland County, Montana, generating electricity for portions of the northwest

465

Photo of the Week: June 22, 2012 | Department of Energy  

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

Photo of the Week: June 22, 2012 Photo of the Week: June 22, 2012 Photo of the Week: June 22, 2012 June 22, 2012 - 4:04pm Addthis The Big Green Bus visited the Energy Department and Secretary Chu this Tuesday. Ten Dartmouth students are touring the nation on the Big Green Bus to build enthusiasm for community involvement through environmental action. This is the 8th year this completely student run initiative has hit the road to travel 12,000 miles across 24 states on a reused, veggie-powered Greyhound bus. | Image: Justin Vandenbroeck, Energy Department The Big Green Bus visited the Energy Department and Secretary Chu this Tuesday. Ten Dartmouth students are touring the nation on the Big Green Bus to build enthusiasm for community involvement through environmental action. This is the 8th year this completely student run initiative has hit the

466

Photo of the Week: The Alternating Gradient Synchrotron | Department of  

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

The Alternating Gradient Synchrotron The Alternating Gradient Synchrotron Photo of the Week: The Alternating Gradient Synchrotron March 11, 2013 - 6:00pm Addthis Since 1960, the Alternating Gradient Synchrotron (AGS) has been one of the world's premiere particle accelerators, well known for the three Nobel Prizes won as a result of research performed there. The AGS name is derived from the concept of alternating gradient focusing, in which the field gradients of the accelerator's 240 magnets are successively alternated inward and outward, permitting particles to be propelled and focused in both the horizontal and vertical plane at the same time. In this 1958 photo, giant magnets await installation into the AGS accelerator ring tunnel at Brookhaven National Laboratory. | Photo courtesy of Brookhaven National Laboratory.

467

Photo of the Week: Fan-tastic | Department of Energy  

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

Fan-tastic Fan-tastic Photo of the Week: Fan-tastic August 17, 2012 - 10:30am Addthis In Jonesboro, Arkansas, a Nordex USA employee stands between utility-scale components that will eventually make up a completed wind turbine. Under the Recovery Act, Nordex USA received a tax credit to assist in the creation of the Jonesboro manufacturing facility, which opened in October 2010. | Photo courtesy of Nordex USA. In Jonesboro, Arkansas, a Nordex USA employee stands between utility-scale components that will eventually make up a completed wind turbine. Under the Recovery Act, Nordex USA received a tax credit to assist in the creation of the Jonesboro manufacturing facility, which opened in October 2010. | Photo courtesy of Nordex USA. Sarah Gerrity Sarah Gerrity Multimedia Editor, Office of Public Affairs

468

Photo-Neutron Thresholds of Beryllium and Deuterium  

Science Journals Connector (OSTI)

The photo-neutron thresholds of beryllium and deuterium have been measured by comparison with the Li7(p,n) threshold. For this purpose an electrostatic generator was used in which an electron beam and a positive ion beam were established simultaneously. Accurate control and measurement of the generator voltage was obtained by using an electrostatic analyzer on the H2+ component of the ion beam. Because the Li7(p,n) threshold lies between the Be9(?,n) and D(?,n) thresholds, errors in extrapolation should be small. The electron beam was accelerated from ground to the accurately known potential of the high voltage electrode where x-rays were produced for the photo-disintegration process. From the photo-neutron thresholds the neutron binding energies of beryllium and deuterium were found to be 1.6660.002 and 2.2260.003 Mev, respectively.

R. C. Mobley and R. A. Laubenstein

1950-11-01T23:59:59.000Z

469

Photo of the Week: Butterflies, Crystal Nanostructures and Solar Cell  

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

Butterflies, Crystal Nanostructures and Solar Butterflies, Crystal Nanostructures and Solar Cell Research Photo of the Week: Butterflies, Crystal Nanostructures and Solar Cell Research October 26, 2012 - 11:44am Addthis What do butterflies and solar cell research have in common? Both have been developing tiny crystals that selectively reflect colors. Over millions of years of evolution, butterfly wings have developed the tiny crystal nanostructures that give butterflies their vivid colors. At Argonne National Laboratory, scientists are working to manufacture these crystals, which could one day be used to create "greener" and more efficient paints, fiber optics and solar cells. In this photo, the iridescent scales of an emerald-patched Cattleheart butterfly are magnified 20 times to highlight the crystals that selectively reflect green colors. | Photo courtesy of Argonne National Laboratory.

470

Photo of the Week: June 22, 2012 | Department of Energy  

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

Photo of the Week: June 22, 2012 Photo of the Week: June 22, 2012 Photo of the Week: June 22, 2012 June 22, 2012 - 4:04pm Addthis The Big Green Bus visited the Energy Department and Secretary Chu this Tuesday. Ten Dartmouth students are touring the nation on the Big Green Bus to build enthusiasm for community involvement through environmental action. This is the 8th year this completely student run initiative has hit the road to travel 12,000 miles across 24 states on a reused, veggie-powered Greyhound bus. | Image: Justin Vandenbroeck, Energy Department The Big Green Bus visited the Energy Department and Secretary Chu this Tuesday. Ten Dartmouth students are touring the nation on the Big Green Bus to build enthusiasm for community involvement through environmental action. This is the 8th year this completely student run initiative has hit the

471

In Space Telescopes and Instruments V, Bely & Breckinridge, eds., Proc. SPIE 3356, Kona, HI, March 1998. A Phase Diversity Experiment to Measure Piston Misalignment on  

E-Print Network [OSTI]

1998. A Phase Diversity Experiment to Measure Piston Misalignment on the Segmented Primary Mirror of an experiment to measure piston errors on the Keck II primary segmented mirror, through atmospheric turbulence, using phase­diverse phase retrieval. The segment piston errorss are separated from the random turbulence

Löfdahl, Mats

472

Photo-degradation of PADC by UV radiation at various wavelengths K.C.C. Tse, F.M.F. Ng, K.N. Yu*  

E-Print Network [OSTI]

branches of sciences such as nuclear physics, radon dosimetry and radiobiological experiments. A review diglycol carbonate; CR-39; Solid-state nuclear track detector; Ultraviolet; Photo-degradation 1, is a commonly used solid-state nuclear track detector (SSNTD). CR-39 detectors are widely used in different

Yu, K.N.

473

Achievement of a record electron temperature for a magnetic mirror device  

E-Print Network [OSTI]

We demonstrate plasma discharges with extremely high temperature of bulk electrons at the large axially symmetric magnetic mirror device GDT (Budker Institute, Novosibirsk). According to Thomson scattering measurements, the on-axis electron temperature averaged over several sequential shots is 660 $\\pm$ 50 eV with peak values exceeding 900 eV in few shots. This corresponds to at least threefold increase as compared to previous experiments both at the GDT and at other comparable machines, thus demonstrating the maximum quasi-stationary (~1 ms) electron temperature achieved in open traps. The breakthrough is made possible with application of sophisticated electron cyclotron resonance heating in addition to standard heating by neutral beams. The reported increase of the electron temperature along with previous experiments, which demonstrated high-density plasma confinement with $\\beta\\approx$ 60%, provide a firm basis for extrapolating to fusion relevant applications of open magnetic systems.

Bagryansky, P A; Lizunov, A A; Maximov, V V; Prikhodko, V V; Shalashov, A G; Soldatkina, E I; Solomakhin, A L; Yakovlev, D V

2014-01-01T23:59:59.000Z

474

A cryogenic liquid-mirror telescope on the moon to study the early universe  

E-Print Network [OSTI]

We have studied the feasibility and scientific potential of zenith observing liquid mirror telescopes having 20 to 100 m diameters located on the moon. They would carry out deep infrared surveys to study the distant universe and follow up discoveries made with the 6 m James Webb Space Telescope (JWST), with more detailed images and spectroscopic studies. They could detect objects 100 times fainter than JWST, observing the first, high-red shift stars in the early universe and their assembly into galaxies. We explored the scientific opportunities, key technologies and optimum location of such telescopes. We have demonstrated critical technologies. For example, the primary mirror would necessitate a high-reflectivity liquid that does not evaporate in the lunar vacuum and remains liquid at less than 100K: We have made a crucial demonstration by successfully coating an ionic liquid that has negligible vapor pressure. We also successfully experimented with a liquid mirror spinning on a superconducting bearing, as will be needed for the cryogenic, vacuum environment of the telescope. We have investigated issues related to lunar locations, concluding that locations within a few km of a pole are ideal for deep sky cover and long integration times. We have located ridges and crater rims within 0.5 degrees of the North Pole that are illuminated for at least some sun angles during lunar winter, providing power and temperature control. We also have identified potential problems, like lunar dust. Issues raised by our preliminary study demand additional in-depth analyses. These issues must be fully examined as part of a scientific debate we hope to start with the present article.

Roger Angel; Simon P. Worden; Ermanno F. Borra; Daniel J. Eisenstein; Bernard Foing; Paul Hickson; Jean-Luc Josset; Ki Bui Ma; Omar Seddiki; Suresh Sivanandam; Simon Thibault; Paul van Susante

2008-06-13T23:59:59.000Z

475

27.1 / V. G. Chigrinov 27.1: Invited Paper: New Developments in Liquid Crystal Photo-Aligning  

E-Print Network [OSTI]

27.1 / V. G. Chigrinov 27.1: Invited Paper: New Developments in Liquid Crystal Photo Incorporated, Japan Abstract Liquid crystal photo-alignment using azo-dyes is reviewed. This alignment method is very different from previously reported ones, such as photo-crosslinking, photo degradation and photo

476

Photo of the Week: I, Robot Olympics | Department of Energy  

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

I, Robot Olympics I, Robot Olympics Photo of the Week: I, Robot Olympics January 11, 2013 - 2:46pm Addthis Last week, students from dozens of local Tennessee high schools gathered at Oak Ridge National Laboratory's Manufacturing Demonstration Facility to check out the game field that they'll be working with in the next six weeks. This year, the young engineers' challenges include building robots that can throw discs and climb pyramids. Learn more about the 2013 FIRST Robotics Competition. | Photo courtesy of Oak Ridge National Laboratory. Last week, students from dozens of local Tennessee high schools gathered at Oak Ridge National Laboratory's Manufacturing Demonstration Facility to

477

Photo-double-ionization of the nitrogen molecule  

Science Journals Connector (OSTI)

The triple differential cross sections of the photo-double-ionization of the nitrogen molecule to the X 1?+g and a3?u N22+ states have been measured at about 20 eV above their respective ionization thresholds in the equal energy sharing kinematics and calculated using a model which makes use of correlated two-center double continuum wave functions. The comparison of the results with those obtained by the Gaussian parametrization method applied in the past with success to heliumlike targets shows the influence of the molecular nature of the N2 target in the photo-double-ionization.

P. Bolognesi; B. Joulakian; A. A. Bulychev; O. Chuluunbaatar; L. Avaldi

2014-05-07T23:59:59.000Z

478

Lithium niobate single-crystal and photo-functional device  

DOE Patents [OSTI]

Provided are lithium niobate single-crystal that requires a low voltage of not larger than 10 kV/nm for its ferroelectric polarization inversion and of which the polarization can be periodically inverted with accuracy even at such a low voltage, and a photo-functional device comprising the crystal. The crystal has a molar fraction of Li.sub.2 O/(Nb.sub.2 O.sub.5 +Li.sub.2 O) of falling between 0.49 and 0.52. The photo-functional device can convert a laser ray being incident thereon.

Gopalan, Venkatraman (State College, PA); Mitchell, Terrence E. (Los Alamos, NM); Kitamura, Kenji (Tsukuba, JP); Furukawa, Yasunori (Tsukuba, JP)

2001-01-01T23:59:59.000Z

479

Photo of the Week: Studying the Rhizosphere | Department of Energy  

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

Studying the Rhizosphere Studying the Rhizosphere Photo of the Week: Studying the Rhizosphere December 18, 2013 - 4:48pm Addthis Scientists at Pacific Northwest National Laboratory study the microbial interactions in the plant root systems, the rhizosphere. The rhizosphere represents a critical zone where plant roots, microbes and minerals interface, and where biogeochemical weathering provides nutrients to plants. This research program will broaden our understanding of the biogeochemistry of plant-microbe-soil interactions. Shown are the spores of an opportunistic soil fungus Penicillium sp. that associates with the plant roots, microbial biofilms and soil minerals. | Photo courtesy of Pacific Northwest National Laboratory. Scientists at Pacific Northwest National Laboratory study the microbial

480

Heating by Optical Absorption and Cooling of High Power Laser Mirrors  

Science Journals Connector (OSTI)

In high power laser system, laser mirror is the core and the most sensitive optical component, which influences the increase of laser power and the quality of laser. Absorption of light at mirrors causes wavef...

Ci-Ming Zhou; Zu-Hai Cheng; Yu-Feng Peng

2003-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "mirror experiment photo" 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.


481

A KB-Focusing Mirror Pair for a VUV-Raman Spectrometer at FLASH - Mirror Metrology and Ray Tracing Results  

SciTech Connect (OSTI)

A plane mirror and two strongly curved plane elliptical mirrors comprising the refocusing system downstream the plane grating monochromator at FLASH in DESY have been characterized with the Nanometer Optical Component Measuring Machine at the BESSY-II Optics Laboratory of the Helmholtz Zentrum Berlin. Based on the measurement results the two elliptical cylinders were optimized by deterministic surface finishing technology (Ion Beam Finishing). The expected focusing performance was verified by ray tracings after each ion beam finish iteration using the measured topography results.

Siewert, Frank [Helmholtz Zentrum Berlin / BESSY II, Albert-Einstein-Str. 15, D-12489 Berlin (Germany); Reininger, Ruben [Scientific Answers and Solutions, 77 Constantine Way, Mount Sinai, NY 11766 (United States); Ruebhausen, Michael A. [CFEL, Center for Free Electron Laser Science, Notkestr. 15, 20355 Hamburg (Germany)

2010-06-23T23:59:59.000Z

482

Mirror thermal noise in laser interferometer gravitational wave detectors operating at room and cryogenic temperature  

E-Print Network [OSTI]

Mirror thermal noise is and will remain one of the main limitations to the sensitivity of gravitational wave detectors based on laser interferometers. We report about projected mirror thermal noise due to losses in the mirror coatings and substrates. The evaluation includes all kind of thermal noises presently known. Several of the envisaged substrate and coating materials are considered. The results for mirrors operated at room temperature and at cryogenic temperature are reported.

Janyce Franc; Nazario Morgado; Raffaele Flaminio; Ronny Nawrodt; Iain Martin; Liam Cunningham; Alan Cumming; Sheila Rowan; James Hough

2009-12-01T23:59:59.000Z

483

Rhodium coated mirrors deposited by magnetron sputtering for fusion applications  

SciTech Connect (OSTI)

Metallic mirrors will be essential components of all optical spectroscopy and imaging systems for ITER plasma diagnostics. Any change in the mirror performance, in particular, its reflectivity, due to erosion of the surface by charge exchange neutrals or deposition of impurities will influence the quality and reliability of the detected signals. Due to its high reflectivity in the visible wavelength range and its low sputtering yield, rhodium appears as an attractive material for first mirrors in ITER. However, the very high price of the raw material calls for using it in the form of a film deposited onto metallic substrates. The development of a reliable technique for the preparation of high reflectivity rhodium films is therefore of the highest importance. Rhodium layers with thicknesses of up to 2 {mu}m were produced on different substrates of interest (Mo, stainless steel, Cu) by magnetron sputtering. Produced films exhibit a low roughness and crystallite size of about 10 nm with a dense columnar structure. No impurities were detected on the surface after deposition. Scratch tests demonstrate that adhesion properties increase with substrate hardness. Detailed optical characterizations of Rh-coated mirrors as well as results of erosion tests performed both under laboratory conditions and in the TEXTOR tokamak are presented in this paper.

Marot, L.; De Temmerman, G.; Oelhafen, P.; Covarel, G.; Litnovsky, A. [Department of Physics, University of Basel, Klingelbergstrasse 82, CH-4056 Basel (Switzerland); Laboratoire Mecanique, Materiaux et Procedes de Fabrication, 61 rue Albert Camus, Universite de Haute-Alsace, F-68093 Mulhouse Cedex (France); Institut fuer Energieforschung (Plasmaphysik), Forschungszentrum Juelich, Association EURATOM-FZJ, D 52425 Juelich (Germany)

2007-10-15T23:59:59.000Z

484

Complex multiplication, rationality and mirror symmetry for abelian varieties  

E-Print Network [OSTI]

We show that complex multiplication on abelian varieties is equivalent to the existence of a constant rational K\\"ahler metric. We give a sufficient condition for a mirror of an abelian variety of CM-type to be of CM-type as well. We also study the relationship between complex multiplication and rationality of a toroidal lattice vertex algebra.

Meng Chen

2005-12-20T23:59:59.000Z

485

Phase effects owing to multilayer coatings in a two-mirror extreme-ultraviolet Schwarzschild objective  

E-Print Network [OSTI]

Phase effects owing to multilayer coatings in a two-mirror extreme-ultraviolet Schwarzschild effects in the two-mirror Schwarzschild objective with point diffraction interferometry. The chromatic the interferometry data on the two-mirror optical system are compared with previously reported coating properties

486

Very high-energy c-ray observations of the Crab nebula and other potential sources with the GRAAL experiment  

E-Print Network [OSTI]

at Almeria'' (GRAAL) experiment uses 63 heliostat-mirrors with a total mirror area of %2500 m2 from the CESA of heliostat fields for c-ray astronomy are pointed out. In particular the effect of field- of-view restricted-rays from cosmic sources. In addition some gen- eral lessons we learnt about the heliostat-field approach

487

Metal multilayer mirrors for EUV wide field telescopes  

SciTech Connect (OSTI)

Metal multilayer mirrors have been designed for the ALEXIS satellite, which is to carry six wide field telescopes to perform an all-sky survey in three or four narrow wavelength bands in the EUV. Comprised of alternating layers of molybdenum and silicon, the mirrors are optimized to provide maximum reflectivity at angles from 11.5 to 17/degree/ off normal incidence and at wavelengths of 133, 171, or 186A. Simultaneously, the mirrors use a ''wavetrap'' described below to suppress reflectivity at 304A, where the extremely strong geocoronal line of He II causes severe background problems. Low reflectivity at 304A is achieved by superposing two layer pairs that provide destructive interference with an effective 2d spacing of 152A. The Mo layers in this wavetrap must be very thin, about 10A each, in order to allow the shorter wavelengths desired for peak reflectivity to penetrate without significant attenuation. Because refraction changes the effective angle of passage through the wavetrap, a joint optimization between layer thicknesses in the deep layers and the wavetrap layers must be performed for each target peak wavelength. For the 186A mirror, the optimum design from substrate upward is 40 layer pairs, each 74A Si and 31A Mo, followed by 2 layer pairs, each 55A Si and 10A Mo. Calculations predict this design will have a peak reflectivity at 186A of 35 percent and a 304A reflectivity less than 10/sup /minus/5/, if available optical constants are correct and the multilayer can be fabricated without difficulty. We will present details of the calculations and laboratory measurements of the reflectivity performance attained with prototype mirrors. 6 refs., 2 figs.

Smith, B.W.; Bloch, J.J.; Roussel-Dupre,D.

1989-01-01T23:59:59.000Z

488

A recoverable versatile photo-polymerization initiator catalyst  

E-Print Network [OSTI]

A photo-polymerization initiator based on an imidazolium and an oxometalate, viz., (BMIm)2(DMIm) PW12O40 (where, BMIm = 1-butyl-3-methylimizodium, DMIm = 3,3'-Dimethyl-1,1'-Diimidazolium) is reported. It polymerizes several industrially important monomers and is recoverable hence can be reused. The Mn and PDI are controlled and a reaction pathway is proposed.

Chen, Dianyu; Roy, Soumyajit

2012-01-01T23:59:59.000Z

489

Photo-mechanical patterning with light activated polymers.  

SciTech Connect (OSTI)

Light activated polymers, which are capable of mechanically responding to light, promise to offer exciting, innovative, and unique material capabilities. Such materials include: photo-radical mediated cleavage and reformation of the polymer backbone in cross-linked elastomers that results in local stress relaxation; photo-switching cross-links in shape memory polymers; and photo-isomerization of azobenzene groups contained in liquid crystal elastomers. In this paper, using our recent material model that couples multiphysical processes involved in light-activated polymers, we demonstrate that a variety of patterns can be created on light activated polymer thin films when coupling mechanical deformation with light irradiation. Here, the polymer thin film is first stretched uniaxially or biaxially. Light is then irradiated on the surface of the thin film. After light irradiation, removal external load partially recovers the initial stretching of the polymer thin film and induces patterns. The variation of the geometry of the patterns can be controlled by a variety of parameters such as initial stretching, light intensity, etc. Photo-patterning with light activated polymer therefore offers a novel way to create surface patterns.

Long, Kevin N.; Qi, H. Jerry (University of Colorado, Boulder, CO); Dunn, Martin L. (University of Colorado, Boulder, CO)

2010-11-01T23:59:59.000Z

490

ELEC4705 Fall 2009 Hetrojunction lasers and PhotoDetectors  

E-Print Network [OSTI]

semiconductor laser (more layers): #12;6 TOM SMY, DEVICES MATERIALS AND PROPERTIES The AlGaAs cladding layers. Distributed Bragg Reflector (DBR) laser Add dimples into cladding layer to to reflect light. Figure 2ELEC4705 ­ Fall 2009 Tom Smy LECTURE 20 Hetrojunction lasers and PhotoDetectors 1 #12;#12;Contents

Smy, Tom

491

iSTOCK PHOTO Oklahoma State University's innovation  

E-Print Network [OSTI]

AND INDIVIDUALS TO OFFER INNOVATIVE WAYS TO REDUCE THE COST OF ENERGY. FOR MORE INFORMATION, VISIT IGSHPAiSTOCK PHOTO FALL 2013 52 Oklahoma State University's innovation in geothermal production technology is a green option that provides long-term cost savings and production efficiency. The ground

492

Impacts of electronically photo-excited NO2 on air pollution in the South Coast Air Basin of California  

E-Print Network [OSTI]

Physics Impacts of electronically photo-excited NO 2 on airto reaction rates of photo-excited NO 2 reacting with H 2 OImpacts of electronically photo-excited NO 2 during the

Ensberg, J. J; Carreras-Sospedra, M.; Dabdub, D.

2010-01-01T23:59:59.000Z

493

Ultrafast gigantic photo-response in (EDO-TTF)2PF6 initiated by 10-fs laser pulses  

E-Print Network [OSTI]

Ultrafast gigantic photo-response in (EDO- TTF) 2 PF 6JItatani@lbl.gov Abstract. We photo-exited a charge- orderedfs optical pulses. The photo-induced metallic phase appeared

Itatani, J.

2006-01-01T23:59:59.000Z

494

Rituals of Jouissance in Annie Ernauxs LUsage de la Photo  

E-Print Network [OSTI]

Art Moyen: Essai sur les usages sociaux de la photographie.Jouissance in Annie Ernaux's LUsage de la photo Desire is aof her most recent book, LUsage de la photo, [Slide 1

Van Arsdall, Lauren

2014-01-01T23:59:59.000Z

495

A Mechanism of Photo-Induced Desorption of Oxygen Atoms From...  

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

of Photo-Induced Desorption of Oxygen Atoms From MgO Nano-Crystals. A Mechanism of Photo-Induced Desorption of Oxygen Atoms From MgO Nano-Crystals. Abstract: In a series of recent...

496

E-Print Network 3.0 - aerial photo interpretation Sample Search...  

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

Search Powered by Explorit Topic List Advanced Search Sample search results for: aerial photo interpretation Page: << < 1 2 3 4 5 > >> 1 Updating Urban DataBases from Aerial Photos...

497

E-Print Network 3.0 - air photo interpretation Sample Search...  

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

photo interpretation Search Powered by Explorit Topic List Advanced Search Sample search results for: air photo interpretation Page: << < 1 2 3 4 5 > >> 1 20 JEM--VoluME 10, NuMbEr...

498

E-Print Network 3.0 - avalanche photo diode Sample Search Results  

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

photo diode Search Powered by Explorit Topic List Advanced Search Sample search results for: avalanche photo diode Page: << < 1 2 3 4 5 > >> 1 Lateral IMPATT Diodes in Standard...

499

Photo of the Week: The First Energy-Efficient Dual-Paned Windows...  

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

Photo of the Week: The First Energy-Efficient Dual-Paned Windows Photo of the Week: The First Energy-Efficient Dual-Paned Windows December 5, 2013 - 12:53pm Addthis Researchers at...

500

E-Print Network 3.0 - aerial photo system Sample Search Results  

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

Search Powered by Explorit Topic List Advanced Search Sample search results for: aerial photo system Page: << < 1 2 3 4 5 > >> 1 Updating Urban DataBases from Aerial Photos...