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  1. Visible wide angle view imaging system of KTM tokamak based on multielement image fiber bundle

    SciTech Connect (OSTI)

    Chektybayev, B. Shapovalov, G.; Kolodeshnikov, A.

    2015-05-15

    In the paper, new visible wide angle view imaging system of KTM tokamak is described. The system has been designed to observe processes inside of plasma and the processes occurring due to plasma-wall interactions through the long equatorial port. Imaging system is designed based on special image fiber bundle and entrance wide angle lens, which provide image of large section of the vacuum chamber, both poloidal half-section and divertor through the sufficiently long equatorial port. The system also consists of two video cameras: slow and fast with image intensifier. Commercial equipment had been used in design of the system that allowed reducing the cost and time for research and development. The paper also discusses advantages and disadvantages of the system in comparison with conventional endoscopes based on a lens system and considers its promising utilization in future tokamaks and future steady state fusion reactors.

  2. Few-view cone-beam CT reconstruction with deformed prior image

    SciTech Connect (OSTI)

    Zhang, Hua; Ouyang, Luo; Wang, Jing E-mail: jing.wang@utsouthwestern.edu; Huang, Jing; Ma, Jianhua E-mail: jing.wang@utsouthwestern.edu; Chen, Wufan

    2014-12-15

    Purpose: Prior images can be incorporated into the image reconstruction process to improve the quality of subsequent cone-beam CT (CBCT) images from sparse-view or low-dose projections. The purpose of this work is to develop a deformed prior image-based reconstruction (DPIR) strategy to mitigate the deformation between the prior image and the target image. Methods: The deformed prior image is obtained by a projection-based registration approach. Specifically, the deformation vector fields used to deform the prior image are estimated through iteratively matching the forward projection of the deformed prior image and the measured on-treatment projections. The deformed prior image is then used as the prior image in the standard prior image constrained compressed sensing (PICCS) algorithm. A simulation study on an XCAT phantom and a clinical study on a head-and-neck cancer patient were conducted to evaluate the performance of the proposed DPIR strategy. Results: The deformed prior image matches the geometry of the on-treatment CBCT more closely as compared to the original prior image. Consequently, the performance of the DPIR strategy from few-view projections is improved in comparison to the standard PICCS algorithm, based on both visual inspection and quantitative measures. In the XCAT phantom study using 20 projections, the average root mean squared error is reduced from 14% in PICCS to 10% in DPIR, and the average universal quality index increases from 0.88 in PICCS to 0.92 in DPIR. Conclusions: The present DPIR approach provides a practical solution to the mismatch problem between the prior image and target image, which improves the performance of the original PICCS algorithm for CBCT reconstruction from few-view or low-dose projections.

  3. AN INTERFACE REGION IMAGING SPECTROGRAPH FIRST VIEW ON SOLAR SPICULES

    SciTech Connect (OSTI)

    Pereira, T. M. D.; De Pontieu, B.; Carlsson, M.; Hansteen, V.; Tarbell, T. D.; Lemen, J.; Title, A.; Boerner, P.; Hurlburt, N.; Wülser, J. P.; Martínez-Sykora, J.; Kleint, L.; Golub, L.; McKillop, S.; Reeves, K. K.; Saar, S.; Testa, P.; Tian, H.; Jaeggli, S.; Kankelborg, C.

    2014-09-01

    Solar spicules have eluded modelers and observers for decades. Since the discovery of the more energetic type II, spicules have become a heated topic but their contribution to the energy balance of the low solar atmosphere remains unknown. Here we give a first glimpse of what quiet-Sun spicules look like when observed with NASA's recently launched Interface Region Imaging Spectrograph (IRIS). Using IRIS spectra and filtergrams that sample the chromosphere and transition region, we compare the properties and evolution of spicules as observed in a coordinated campaign with Hinode and the Atmospheric Imaging Assembly. Our IRIS observations allow us to follow the thermal evolution of type II spicules and finally confirm that the fading of Ca II H spicules appears to be caused by rapid heating to higher temperatures. The IRIS spicules do not fade but continue evolving, reaching higher and falling back down after 500-800 s. Ca II H type II spicules are thus the initial stages of violent and hotter events that mostly remain invisible in Ca II H filtergrams. These events have very different properties from type I spicules, which show lower velocities and no fading from chromospheric passbands. The IRIS spectra of spicules show the same signature as their proposed disk counterparts, reinforcing earlier work. Spectroheliograms from spectral rasters also confirm that quiet-Sun spicules originate in bushes from the magnetic network. Our results suggest that type II spicules are indeed the site of vigorous heating (to at least transition region temperatures) along extensive parts of the upward moving spicular plasma.

  4. 2013 Plasma Camp | Princeton Plasma Physics Lab

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

    Plasma Camp View larger image View larger image View larger image View larger image View larger image View larger image View larger image

  5. Registration of clinical volumes to beams-eye-view images for real-time tracking

    SciTech Connect (OSTI)

    Bryant, Jonathan H.; Rottmann, Joerg; Lewis, John H.; Mishra, Pankaj; Berbeco, Ross I.; Keall, Paul J.

    2014-12-15

    Purpose: The authors combine the registration of 2D beams eye view (BEV) images and 3D planning computed tomography (CT) images, with relative, markerless tumor tracking to provide automatic absolute tracking of physician defined volumes such as the gross tumor volume (GTV). Methods: During treatment of lung SBRT cases, BEV images were continuously acquired with an electronic portal imaging device (EPID) operating in cine mode. For absolute registration of physician-defined volumes, an intensity based 2D/3D registration to the planning CT was performed using the end-of-exhale (EoE) phase of the four dimensional computed tomography (4DCT). The volume was converted from Hounsfield units into electron density by a calibration curve and digitally reconstructed radiographs (DRRs) were generated for each beam geometry. Using normalized cross correlation between the DRR and an EoE BEV image, the best in-plane rigid transformation was found. The transformation was applied to physician-defined contours in the planning CT, mapping them into the EPID image domain. A robust multiregion method of relative markerless lung tumor tracking quantified deviations from the EoE position. Results: The success of 2D/3D registration was demonstrated at the EoE breathing phase. By registering at this phase and then employing a separate technique for relative tracking, the authors are able to successfully track target volumes in the BEV images throughout the entire treatment delivery. Conclusions: Through the combination of EPID/4DCT registration and relative tracking, a necessary step toward the clinical implementation of BEV tracking has been completed. The knowledge of tumor volumes relative to the treatment field is important for future applications like real-time motion management, adaptive radiotherapy, and delivered dose calculations.

  6. TH-E-17A-10: Markerless Lung Tumor Tracking Based On Beams Eye View EPID Images

    SciTech Connect (OSTI)

    Chiu, T; Kearney, V; Liu, H; Jiang, L; Foster, R; Mao, W; Rozario, T; Bereg, S; Klash, S

    2014-06-15

    Purpose: Dynamic tumor tracking or motion compensation techniques have proposed to modify beam delivery following lung tumor motion on the flight. Conventional treatment plan QA could be performed in advance since every delivery may be different. Markerless lung tumor tracking using beams eye view EPID images provides a best treatment evaluation mechanism. The purpose of this study is to improve the accuracy of the online markerless lung tumor motion tracking method. Methods: The lung tumor could be located on every frame of MV images during radiation therapy treatment by comparing with corresponding digitally reconstructed radiograph (DRR). A kV-MV CT corresponding curve is applied on planning kV CT to generate MV CT images for patients in order to enhance the similarity between DRRs and MV treatment images. This kV-MV CT corresponding curve was obtained by scanning a same CT electron density phantom by a kV CT scanner and MV scanner (Tomotherapy) or MV CBCT. Two sets of MV DRRs were then generated for tumor and anatomy without tumor as the references to tracking the tumor on beams eye view EPID images. Results: Phantom studies were performed on a Varian TrueBeam linac. MV treatment images were acquired continuously during each treatment beam delivery at 12 gantry angles by iTools. Markerless tumor tracking was applied with DRRs generated from simulated MVCT. Tumors were tracked on every frame of images and compared with expected positions based on programed phantom motion. It was found that the average tracking error were 2.3 mm. Conclusion: This algorithm is capable of detecting lung tumors at complicated environment without implanting markers. It should be noted that the CT data has a slice thickness of 3 mm. This shows the statistical accuracy is better than the spatial accuracy. This project has been supported by a Varian Research Grant.

  7. Under-Sodium Viewing: A Review of Ultrasonic Imaging Technology for Liquid Metal Fast Reactors

    SciTech Connect (OSTI)

    Griffin, Jeffrey W.; Peters, Timothy J.; Posakony, Gerald J.; Chien, Hual-Te; Bond, Leonard J.; Denslow, Kayte M.; Sheen, Shuh-Haw; Raptis, Paul

    2009-03-27

    This current report is a summary of information obtained in the "Information Capture" task of the U.S. DOE-funded "Under Sodium Viewing (USV) Project." The goal of the multi-year USV project is to design, build, and demonstrate a state-of-the-art prototype ultrasonic viewing system tailored for periodic reactor core in-service monitoring and maintenance inspections. The study seeks to optimize system parameters, improve performance, and re-establish this key technology area which will be required to support any new U.S. liquid-metal cooled fast reactors.

  8. Thermoacoustic imaging over large field of view for three-dimensional breast tumor localization: A phantom study

    SciTech Connect (OSTI)

    Fu, Yong; Ji, Zhong; Ding, Wenzheng; Ye, Fanghao; Lou, Cunguang

    2014-11-01

    Purpose: Previous studies demonstrated that thermoacoustic imaging (TAI) has great potential for breast tumor detection. However, large field of view (FOV) imaging remains a long-standing challenge for three-dimensional (3D) breast tumor localization. Here, the authors propose a practical TAI system for noninvasive 3D localization of breast tumors with large FOV through the use of ultrashort microwave pulse (USMP). Methods: A USMP generator was employed for TAI. The energy density required for quality imaging and the corresponding microwave-to-acoustic conversion efficiency were compared with that of conventional TAI. The microwave energy distribution, imaging depth, resolution, and 3D imaging capabilities were then investigated. Finally, a breast phantom embedded with a laboratory-grown tumor was imaged to evaluate the FOV performance of the USMP TAI system, under a simulated clinical situation. Results: A radiation energy density equivalent to just 1.6%2.2% of that for conventional submicrosecond microwave TAI was sufficient to obtain a thermoacoustic signal with the required signal-to-noise ratio. This result clearly demonstrated a significantly higher microwave-to-acoustic conversion efficiency of USMP TAI compared to that of conventional TAI. The USMP TAI system achieved 61 mm imaging depth and 12 12 cm{sup 2} microwave radiation area. The volumetric image of a copper target measured at depth of 46 cm matched well with the actual shape and the resolution reaches 230 ?m. The TAI of the breast phantom was precisely localized to an accuracy of 0.1 cm over an 8 8 cm{sup 2} FOV. Conclusions: The experimental results demonstrated that the USMP TAI system offered significant potential for noninvasive clinical detection and 3D localization of deep breast tumors, with low microwave radiation dose and high spatial resolution over a sufficiently large FOV.

  9. 3D View Inside the Skeleton with X-ray Microscopy: Imaging Bone...

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

    Skeleton with X-ray Microscopy: Imaging Bone at the Nanoscale Scientists studying osteoporosis and other skeletal diseases are interested in the 3D structure of bone and its...

  10. Princyclopedia 2013 | Princeton Plasma Physics Lab

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

    Princyclopedia 2013 View larger image Event Floor 1 View larger image Pppl 1 View larger image Pppl 3 View larger image Pppl 4 View larger image Pppl 7

  11. Scientists detect methane levels three times larger than expected...

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

    Methane levels larger over Four Corners region Scientists detect methane levels three times larger than expected over Four Corners region Study is first to show space-based...

  12. Upcoming Funding Opportunity to Develop Larger Wind Turbine Blades...

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

    Upcoming Funding Opportunity to Develop Larger Wind Turbine Blades Upcoming Funding Opportunity to Develop Larger Wind Turbine Blades February 20, 2015 - 4:55pm Addthis On February...

  13. INTERACTIONS BETWEEN CORONAL MASS EJECTIONS VIEWED IN COORDINATED IMAGING AND IN SITU OBSERVATIONS

    SciTech Connect (OSTI)

    Liu, Ying D.; Luhmann, Janet G.; Moestl, Christian; Martinez-Oliveros, Juan C.; Bale, Stuart D.; Lin, Robert P.; Harrison, Richard A.; Temmer, Manuela; Webb, David F.; Odstrcil, Dusan

    2012-02-20

    The successive coronal mass ejections (CMEs) from 2010 July 30 to August 1 present us the first opportunity to study CME-CME interactions with unprecedented heliospheric imaging and in situ observations from multiple vantage points. We describe two cases of CME interactions: merging of two CMEs launched close in time and overtaking of a preceding CME by a shock wave. The first two CMEs on August 1 interact close to the Sun and form a merged front, which then overtakes the July 30 CME near 1 AU, as revealed by wide-angle imaging observations. Connections between imaging observations and in situ signatures at 1 AU suggest that the merged front is a shock wave, followed by two ejecta observed at Wind which seem to have already merged. In situ measurements show that the CME from July 30 is being overtaken by the shock at 1 AU and is significantly compressed, accelerated, and heated. The interaction between the preceding ejecta and shock also results in variations in the shock strength and structure on a global scale, as shown by widely separated in situ measurements from Wind and STEREO B. These results indicate important implications of CME-CME interactions for shock propagation, particle acceleration, and space weather forecasting.

  14. Iterative optimizing quantization method for reconstructing three-dimensional images from a limited number of views

    DOE Patents [OSTI]

    Lee, H.R.

    1997-11-18

    A three-dimensional image reconstruction method comprises treating the object of interest as a group of elements with a size that is determined by the resolution of the projection data, e.g., as determined by the size of each pixel. One of the projections is used as a reference projection. A fictitious object is arbitrarily defined that is constrained by such reference projection. The method modifies the known structure of the fictitious object by comparing and optimizing its four projections to those of the unknown structure of the real object and continues to iterate until the optimization is limited by the residual sum of background noise. The method is composed of several sub-processes that acquire four projections from the real data and the fictitious object: generate an arbitrary distribution to define the fictitious object, optimize the four projections, generate a new distribution for the fictitious object, and enhance the reconstructed image. The sub-process for the acquisition of the four projections from the input real data is simply the function of acquiring the four projections from the data of the transmitted intensity. The transmitted intensity represents the density distribution, that is, the distribution of absorption coefficients through the object. 5 figs.

  15. Iterative optimizing quantization method for reconstructing three-dimensional images from a limited number of views

    DOE Patents [OSTI]

    Lee, Heung-Rae (Dublin, CA)

    1997-01-01

    A three-dimensional image reconstruction method comprises treating the object of interest as a group of elements with a size that is determined by the resolution of the projection data, e.g., as determined by the size of each pixel. One of the projections is used as a reference projection. A fictitious object is arbitrarily defined that is constrained by such reference projection. The method modifies the known structure of the fictitious object by comparing and optimizing its four projections to those of the unknown structure of the real object and continues to iterate until the optimization is limited by the residual sum of background noise. The method is composed of several sub-processes that acquire four projections from the real data and the fictitious object: generate an arbitrary distribution to define the fictitious object, optimize the four projections, generate a new distribution for the fictitious object, and enhance the reconstructed image. The sub-process for the acquisition of the four projections from the input real data is simply the function of acquiring the four projections from the data of the transmitted intensity. The transmitted intensity represents the density distribution, that is, the distribution of absorption coefficients through the object.

  16. Rep. Rush Holt Visits TCHS | Princeton Plasma Physics Lab

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    Rep. Rush Holt Visits TCHS View larger image IMG 1492 View larger image IMG 1495 View larger image IMG 1497 View larger image IMG 1503 View larger image IMG 1505 View larger image IMG 1507 View larger image IMG 1517 View larger image IMG 1514 View larger image IMG 1519 View larger image IMG 1521 View larger image IMG 1537 View larger image IMG 1542 View larger image IMG 1546 View larger image IMG 1550

  17. Generic disposal concepts and thermal load management for larger...

    Office of Scientific and Technical Information (OSTI)

    Generic disposal concepts and thermal load management for larger waste packages. Citation Details In-Document Search Title: Generic disposal concepts and thermal load management...

  18. New Report Shows Trend Toward Larger Offshore Wind Systems, with...

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

    Report Shows Trend Toward Larger Offshore Wind Systems, with 11 Advanced Stage Projects ... in offshore wind farms, increasing the amount of electricity delivered to consumers. ...

  19. CLOuDS: 2012 Workshop | Princeton Plasma Physics Lab

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    CLOuDS: 2012 Workshop View larger image IMG 1124 View larger image IMG 1125 View larger image IMG 1126 View larger image IMG 1155 View larger image IMG 1156 View larger image IMG 1157 View larger image IMG 1127 View larger image IMG 1128 View larger image IMG 1130 View larger image IMG 1131 View larger image IMG 1132 View larger image IMG 1133 View larger image IMG 1134 View larger image IMG 1137 View larger image IMG 1146 View larger image IMG 1148 View larger image IMG 1151 View larger image

  20. 2012 Science Bowls | Princeton Plasma Physics Lab

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    Science Bowls View larger image IMG 0357 View larger image IMG 0358 View larger image IMG 0359 View larger image IMG 0360 View larger image IMG 0361 View larger image IMG 0362 View larger image IMG 0363 View larger image IMG 0365 View larger image IMG 0368 View larger image IMG 0369 View larger image IMG 0370 View larger image IMG 0371 View larger image IMG 0376 View larger image IMG 0378 View larger image IMG 0379 View larger image IMG 0381 View larger image IMG 0382 View larger image IMG 0394

  1. New Funding Opportunity to Develop Larger Wind Turbine Blades

    Broader source: Energy.gov [DOE]

    The Energy Department today announced $1.8 million in funding for the development of larger wind turbine blades that will help capture more power from wind resources and increase the efficiency of wind energy systems.

  2. Upcoming Funding Opportunity to Develop Larger Wind Turbine Blades

    Broader source: Energy.gov [DOE]

    On February 20, EERE’s Wind Program announced a Notice of Intent to issue a funding opportunity titled “U.S. Wind Manufacturing: Larger Blades to Access Greater Wind Resources and Lower Costs.”

  3. A History of the Science Education Laboratory in Pictures | Princeton...

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

    image Plasma Speaker Lab renovation View larger image The "Loft" View larger image Teaching Lab renovation View larger image Dusty Plasma Lab completed View larger image The...

  4. 2013 Pathways to Science Summit | Princeton Plasma Physics Lab

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    Pathways to Science Summit View larger image IMG 2061 View larger image IMG 2063 View larger image IMG 2062 View larger image IMG 2067 View larger image IMG 2068 View larger image IMG 2069 View larger image IMG 2070 View larger image IMG 2073 View larger image IMG 2081 View larger image IMG 2085 View larger image IMG 2096 View larger image IMG 2101 View larger image IMG 2103 View larger image IMG 2104 View larger image IMG 2105 View larger image IMG 2106 View larger image IMG 2107

  5. 2012 APS-DPP Plasma Science Expo, Providence, RI | Princeton Plasma Physics

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    Lab APS-DPP Plasma Science Expo, Providence, RI View larger image IMG 1847 View larger image IMG 1598 View larger image IMG 1608 View larger image IMG 1609 View larger image IMG 1614 View larger image IMG 1647 View larger image IMG 1650 View larger image IMG 1651 View larger image IMG 1657 View larger image IMG 1659 View larger image IMG 1662 View larger image IMG 1663 View larger image IMG 1664 View larger image IMG 1668 View larger image IMG 1672 View larger image IMG 1675 View larger

  6. 2013 Science Bowl | Princeton Plasma Physics Lab

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    Bowl View larger image 13 PR 0222 189 View larger image 13 PR 0222 194 View larger image 13 PR 0222 189 View larger image 13 PR 0222 195 View larger image 13 PR 0222 200 View larger image 13 PR 0222 206 View larger image Winners WWPS F View larger image 2 Nd Place Bergen View larger image 3 Rd Place State View larger image Winners View larger image 2 Nd Place JDroids View larger image 3 Rd Place Thomas Grover

  7. SU-D-9A-04: Brain PET/CT Imaging On a Scanner with a Large Axial Field-Of-View

    SciTech Connect (OSTI)

    Park, M; Gerbaudo, V; Hamberg, L; Seaver, K; Kijewski, M

    2014-06-01

    Purpose: Large axial field-of-view (FOV) PET/CT scanners are valued for high sensitivity. Brain PET image quality may depend on the head position within the FOV. We investigated the precision of activity estimation for brain PET imaging when the brain was positioned at the end (END) and in the middle (CEN) of the FOV. The additional CT dose for the CEN position was recorded. Methods: An image quality (Jaszczak) phantom and a striatal phantom were filled with F-18 and positioned in END and CEN locations. For each phantom and each location, we acquired a ∼1-hr listmode PET, rebinned the data into 10 frames with equal number of coincidence events, and reconstructed each frame using an iterative algorithm. For the striatal phantom, END and CEN were compared by drawing on each image three regions of interest (ROI) in axially separated uniform areas. The standard deviation of the activity estimation within each ROI was averaged over the 10 images. The coefficient of variation (CV) for activity estimation was calculated at each position. Image quality was assessed by inspecting the resolution bar pattern in the Jaszczak phantom at two different head positions. Results: The CV was the lowest for ROIs near the center of the FOV. For slices near the end, not only was the CV highest, but also the resolution pattern was degraded. CTDIvol summarized in the dose report indicated that the CT dose was ∼ 10% higher for CEN as compared to END position. Conclusion: Positioning the brain in the middle of the FOV in a large FOV PET/CT scanner allows more precise measurement of tracer uptake and better image quality at the cost of increased CT dose. For the end location longer scan times may minimize image quality degradation without any additional CT dose.

  8. 2011 APS-DPP Poster Session, Salt Lake City, UT | Princeton Plasma Physics

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    Lab APS-DPP Poster Session, Salt Lake City, UT View larger image DSCN 0030 View larger image DSCN 0031 View larger image DSCN 0032 View larger image DSCN 0033 View larger image DSCN 0035 View larger image DSCN 0037 View larger image DSCN 0039 View larger image DSCN 0040 View larger image DSCN 0041 View larger image DSCN 0042 View larger image DSCN 0043 View larger image DSCN 0045 View larger image DSCN 0047 View larger image DSCN 0049 View larger image DSCN 0050 View larger image DSCN 0051

  9. 2012 YWC | Princeton Plasma Physics Lab

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    YWC View larger image 12 PR 0323 009 View larger image 12 PR 0323 022 View larger image 12 PR 0323 032 View larger image 12 PR 0323 045 View larger image 12 PR 0323 047 View larger image 12 PR 0323 049 View larger image 12 PR 0323 051 View larger image 12 PR 0323 067 View larger image 12 PR 0323 069 View larger image 12 PR 0323 084 View larger image 12 PR 0323 086 View larger image 12 PR 0323 098 View larger image 12 PR 0323 107 View larger image 12 PR 0323 109 View larger image 12 PR 0323 126

  10. 2014 YWC Gallery | Princeton Plasma Physics Lab

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    4 YWC Gallery View larger image 14 PR 0321 007 View larger image 14 PR 0321 049 View larger image 14 PR 0321 057 View larger image 14 PR 0321 062 View larger image 14 PR 0321 079 View larger image 14 PR 0321 789 View larger image Speaker 936 View larger image 14 PR 0321 960 View larger image 14 PR 0321 279 View larger image Mike And Alba 391 View larger image 14 PR 0321 360 View larger image Speaker 960 View larger image 14 PR 0321 331 View larger image 14 PR 0321 265 View larger image 14 PR

  11. 2012 USA Science & Engineering Festival | Princeton Plasma Physics...

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    USA Science & Engineering Festival View larger image IMG 0658 View larger image IMG 0659 View larger image IMG 0664 View larger image IMG 0667 View larger image IMG 0682 View...

  12. 2013 Summer's End Poster Session | Princeton Plasma Physics Lab

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    Summer's End Poster Session View larger image 13 PR 0814 053 View larger image 13 PR 0814 104 View larger image 13 PR 0814 119 P View larger image 13 PR 0814 121 View larger image 13 PR 0814 123 View larger image 13 PR 0814 153 View larger image 13 PR 0814 214 View larger image 13 PR 0814 233 View larger image 13 PR 0814 260 View larger image 13 PR 0814 280 View larger image 13 PR 0814 320 View larger image 13 PR 0814 349 View larger image 13 PR 0814 356 View larger image 13 PR 0814 378 View

  13. Science Education Group | Princeton Plasma Physics Lab

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    Science Education Group View larger image Sci Ed Group 15 View larger image Group 21

  14. 2012-2013 PathSci Kick-Off Event | Princeton Plasma Physics Lab

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    -2013 PathSci Kick-Off Event View larger image IMG 1944 View larger image IMG 1946 View larger image IMG 1949 View larger image IMG 1954 View larger image IMG 1955 View larger image IMG 1956 View larger image IMG 1969 View larger image IMG 1971

  15. 2012 Plasma Camp | Princeton Plasma Physics Lab

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    Plasma Camp View larger image 12 PR 0724 008 F View larger image 12 PR 0724 011 F View larger image 12 PR 0724 012 F View larger image 12 PR 0724 014 F View larger image 12 PR 0724 021 F View larger image 12 PR 0724 027 F View larger image 12 PR 0724 028 F View larger image 12 PR 0724 030 F View larger image 12 PR 0724 031 F View larger image 12 PR 0724 032 F View larger image 12 PR 0724 033 F View larger image 12 PR 0724 036 F View larger image 12 PR 0724 038 F View larger image 12 PR 0724 043

  16. 2012 APS-DPP Plasma Science Expo, Providence, RI | Princeton...

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

    APS-DPP Plasma Science Expo, Providence, RI View larger image IMG 1847 View larger image IMG 1598 View larger image IMG 1608 View larger image IMG 1609 View larger image IMG 1614...

  17. 2015 YWC in photos! | Princeton Plasma Physics Lab

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    5 YWC in photos View larger image 15 PR 0319 014 View larger image 15 PR 0319 016 View larger image HR 6 A 0020 View larger image 15 PR 0319 021 View larger image 15 PR 0319 034...

  18. Take Your Child to Work Day @ PPPL! | Princeton Plasma Physics Lab

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    Take Your Child to Work Day @ PPPL! View larger image 13 PR 0425 004 View larger image 13 PR 0425 013 View larger image 13 PR 0425 013 View larger image 13 PR 0425 016 View larger image 13 PR 0425 054 View larger image 13 PR 0425 067 View larger image 13 PR 0425 085 View larger image 13 PR 0425 110 View larger image HR 6 A 1257 View larger image HR 6 A 1264 2

  19. Protective laser beam viewing device

    DOE Patents [OSTI]

    Neil, George R.; Jordan, Kevin Carl

    2012-12-18

    A protective laser beam viewing system or device including a camera selectively sensitive to laser light wavelengths and a viewing screen receiving images from the laser sensitive camera. According to a preferred embodiment of the invention, the camera is worn on the head of the user or incorporated into a goggle-type viewing display so that it is always aimed at the area of viewing interest to the user and the viewing screen is incorporated into a video display worn as goggles over the eyes of the user.

  20. Imaging

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

    Imaging Imaging Print The wavelengths of soft x-ray photons (1-15 nm) are very well matched to the creation of "nanoscopes" capable of probing the interior structure of biological cells and inorganic mesoscopic systems.Topics addressed by soft x-ray imaging techniques include cell biology, nanomagnetism, environmental science, and polymers. The tunability of synchrotron radiation is absolutely essential for the creation of contrast mechanisms. Cell biology CAT scans are performed in

  1. Imaging

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

    mesoscopic systems.Topics addressed by soft x-ray imaging techniques include cell biology, nanomagnetism, environmental science, and polymers. The tunability of synchrotron...

  2. 2011 CLOuDS Campaign | Princeton Plasma Physics Lab

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

    CLOuDS Campaign (photo credits: NASA Johnson Space Center) View larger image 11 PR 0706 29 View larger image 11 PR 0706 31 View larger image 11 PR 0706 32 View larger image Jsc 2011 E 070584 View larger image Jsc 2011 E 070586 View larger image Jsc 2011 E 070594 View larger image Jsc 2011 E 070600 View larger image Jsc 2011 E 070602 View larger image Jsc 2011 E 070605 View larger image Jsc 2011 E 070612 View larger image Jsc 2011 E 070615 View larger image Jsc 2011 E 070633 View larger image Jsc

  3. Developing Renewable Energy Projects Larger Than 10 MWs at Federal Facilities

    SciTech Connect (OSTI)

    2013-03-01

    To accomplish Federal goals for renewable energy, sustainability, and energy security, large-scale renewable energy projects must be developed and constructed on Federal sites at a significant scale with significant private investment. For the purposes of this Guide, large-scale Federal renewable energy projects are defined as renewable energy facilities larger than 10 megawatts (MW) that are sited on Federal property and lands and typically financed and owned by third parties.1 The U.S. Department of Energy’s Federal Energy Management Program (FEMP) helps Federal agencies meet these goals and assists agency personnel navigate the complexities of developing such projects and attract the necessary private capital to complete them. This Guide is intended to provide a general resource that will begin to develop the Federal employee’s awareness and understanding of the project developer’s operating environment and the private sector’s awareness and understanding of the Federal environment. Because the vast majority of the investment that is required to meet the goals for large-scale renewable energy projects will come from the private sector, this Guide has been organized to match Federal processes with typical phases of commercial project development. FEMP collaborated with the National Renewable Energy Laboratory (NREL) and professional project developers on this Guide to ensure that Federal projects have key elements recognizable to private sector developers and investors. The main purpose of this Guide is to provide a project development framework to allow the Federal Government, private developers, and investors to work in a coordinated fashion on large-scale renewable energy projects. The framework includes key elements that describe a successful, financially attractive large-scale renewable energy project. This framework begins the translation between the Federal and private sector operating environments. When viewing the overall

  4. Imaging

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

    Imaging Print The wavelengths of soft x-ray photons (1-15 nm) are very well matched to the creation of "nanoscopes" capable of probing the interior structure of biological cells and inorganic mesoscopic systems.Topics addressed by soft x-ray imaging techniques include cell biology, nanomagnetism, environmental science, and polymers. The tunability of synchrotron radiation is absolutely essential for the creation of contrast mechanisms. Cell biology CAT scans are performed in the

  5. A Lidar View of Clouds in Southeastern China

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

    Lidar View of Clouds in Southeastern China For original submission and image(s), see ARM Research Highlights http:www.arm.govsciencehighlights Research Highlight From May 2008...

  6. Scientists detect methane levels three times larger than expected over Four

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

    Corners region Methane levels larger over Four Corners region Scientists detect methane levels three times larger than expected over Four Corners region Study is first to show space-based techniques can successfully verify international regulations on fossil energy emissions. December 22, 2014 Scientists detect methane levels three times larger than expected over Four Corners region Study is first to show space-based techniques can successfully verify international regulations on fossil

  7. Stereoscopic optical viewing system

    DOE Patents [OSTI]

    Tallman, Clifford S. (Walnut Creek, CA)

    1987-01-01

    An improved optical system which provides the operator a stereoscopic viewing field and depth of vision, particularly suitable for use in various machines such as electron or laser beam welding and drilling machines. The system features two separate but independently controlled optical viewing assemblies from the eyepiece to a spot directly above the working surface. Each optical assembly comprises a combination of eye pieces, turning prisms, telephoto lenses for providing magnification, achromatic imaging relay lenses and final stage pentagonal turning prisms. Adjustment for variations in distance from the turning prisms to the workpiece, necessitated by varying part sizes and configurations and by the operator's visual accuity, is provided separately for each optical assembly by means of separate manual controls at the operator console or within easy reach of the operator.

  8. Stereoscopic optical viewing system

    DOE Patents [OSTI]

    Tallman, C.S.

    1986-05-02

    An improved optical system which provides the operator with a stereoscopic viewing field and depth of vision, particularly suitable for use in various machines such as electron or laser beam welding and drilling machines. The system features two separate but independently controlled optical viewing assemblies from the eyepiece to a spot directly above the working surface. Each optical assembly comprises a combination of eye pieces, turning prisms, telephoto lenses for providing magnification, achromatic imaging relay lenses and final stage pentagonal turning prisms. Adjustment for variations in distance from the turning prisms to the workpiece, necessitated by varying part sizes and configurations and by the operator's visual accuity, is provided separately for each optical assembly by means of separate manual controls at the operator console or within easy reach of the operator.

  9. Views of the solar system

    SciTech Connect (OSTI)

    Hamilton, C.

    1995-02-01

    Views of the Solar System has been created as an educational tour of the solar system. It contains images and information about the Sun, planets, moons, asteroids and comets found within the solar system. The image processing for many of the images was done by the author. This tour uses hypertext to allow space travel by simply clicking on a desired planet. This causes information and images about the planet to appear on screen. While on a planet page, hyperlinks travel to pages about the moons and other relevant available resources. Unusual terms are linked to and defined in the Glossary page. Statistical information of the planets and satellites can be browsed through lists sorted by name, radius and distance. History of Space Exploration contains information about rocket history, early astronauts, space missions, spacecraft and detailed chronology tables of space exploration. The Table of Contents page has links to all of the various pages within Views Of the Solar System.

  10. Larger sized wire arrays on 1.5 MA Z-pinch generator

    SciTech Connect (OSTI)

    Safronova, A. S. Kantsyrev, V. L. Weller, M. E. Shlyaptseva, V. V. Shrestha, I. K. Esaulov, A. A. Stafford, A.; Chuvatin, A. S.; Coverdale, C. A.; Jones, B.

    2014-12-15

    Experiments on the UNR Zebra generator with Load Current Multiplier (LCM) allow for implosions of larger sized wire array loads than at standard current of 1 MA. Advantages of larger sized planar wire array implosions include enhanced energy coupling to plasmas, better diagnostic access to observable plasma regions, and more complex geometries of the wire loads. The experiments with larger sized wire arrays were performed on 1.5 MA Zebra with LCM (the anode-cathode gap was 1 cm, which is half the gap used in the standard mode). In particular, larger sized multi-planar wire arrays had two outer wire planes from mid-atomic-number wires to create a global magnetic field (gmf) and plasma flow between them. A modified central plane with a few Al wires at the edges was put in the middle between outer planes to influence gmf and to create Al plasma flow in the perpendicular direction (to the outer arrays plasma flow). Such modified plane has different number of empty slots: it was increased from 6 up to 10, hence increasing the gap inside the middle plane from 4.9 to 7.7 mm, respectively. Such load configuration allows for more independent study of the flows of L-shell mid-atomic-number plasma (between the outer planes) and K-shell Al plasma (which first fills the gap between the edge wires along the middle plane) and their radiation in space and time. We demonstrate that such configuration produces higher linear radiation yield and electron temperatures as well as advantages of better diagnostics access to observable plasma regions and how the load geometry (size of the gap in the middle plane) influences K-shell Al radiation. In particular, K-shell Al radiation was delayed compared to L-shell mid-atomic-number radiation when the gap in the middle plane was large enough (when the number of empty slots was increased up to ten)

  11. Analysis of Transportation and Logistics Challenges Affecting the Deployment of Larger Wind Turbines: Summary of Results

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

    Analysis of Transportation and Logistics Challenges Affecting the Deployment of Larger Wind Turbines: Summary of Results J. Cotrell, T. Stehly, J. Johnson, J. O. Roberts, Z. Parker, G. Scott, and D. Heimiller Technical Report NREL/TP-5000-61063 January 2014 NREL is a national laboratory of the U.S. Department of Energy Office of Energy Efficiency & Renewable Energy Operated by the Alliance for Sustainable Energy, LLC This report is available at no cost from the National Renewable Energy

  12. Inner heliospheric evolution of a 'STEALTH' CME derived from multi-view imaging and multipoint in situ observations. I. Propagation to 1 AU

    SciTech Connect (OSTI)

    Nieves-Chinchilla, T.; Vourlidas, A.; Stenborg, G.; Savani, N. P.; Koval, A.; Szabo, A.; Jian, L. K.

    2013-12-10

    Coronal mass ejections (CMEs) are the main driver of space weather. Therefore, a precise forecasting of their likely geo-effectiveness relies on an accurate tracking of their morphological and kinematical evolution throughout the interplanetary medium. However, single viewpoint observations require many assumptions to model the development of the features of CMEs. The most common hypotheses were those of radial propagation and self-similar expansion. The use of different viewpoints shows that, at least for some cases, those assumptions are no longer valid. From radial propagation, typical attributes that can now be confirmed to exist are over-expansion and/or rotation along the propagation axis. Understanding the 3D development and evolution of the CME features will help to establish the connection between remote and in situ observations, and hence help forecast space weather. We present an analysis of the morphological and kinematical evolution of a STEREO-B-directed CME on 2009 August 25-27. By means of a comprehensive analysis of remote imaging observations provided by the SOHO, STEREO, and SDO missions, and in situ measurements recorded by Wind, ACE, and MESSENGER, we prove in this paper that the event exhibits signatures of deflection, which are usually associated with changes in the direction of propagation and/or also with rotation. The interaction with other magnetic obstacles could act as a catalyst of deflection or rotation effects. We also propose a method to investigate the change of the CME tilt from the analysis of height-time direct measurements. If this method is validated in further work, it may have important implications for space weather studies because it will allow for inference of the interplanetary counterpart of the CME's orientation.

  13. JOBAID-VIEWING USER RECORDS

    Office of Energy Efficiency and Renewable Energy (EERE)

    In this job aid you will View To-Do List using Filter and View options, View Completed Work, and View Curriculum Status and Detials areas.

  14. ThreatView

    Energy Science and Technology Software Center (OSTI)

    2007-09-25

    The ThreatView project is based on our prior work with the existing ParaView open-source scientific visualization application. Where ParaView provides a grapical client optimized scientific visualization over the VTK parallel client server architecture, ThreatView provides a client optimized for more generic visual analytics over the same architecture. Because ThreatView is based on the VTK parallel client-server architecture, data sources can reside on remote hosts, and processing and rendering can be performed in parallel. As seenmore » in Fig. 1, ThreatView provides four main methods for visualizing data: Landscape View, which displays a graph using a landscape metaphor where clusters of graph nodes produce "hills" in the landscape; Graph View, which displays a graph using a traditional "ball-and-stick" style; Table View, which displays tabular data in a standard spreadsheet; and Attribute View, which displays a tabular "histogram" of input data - for a selected table column, the Attribute View displays each unique value within the column, and the number of times that value appears in the data. There are two supplemental view types: Text View, which displays tabular data one-record-at-a-time; and the Statistics View, which displays input metadata, such as the number of vertices and edges in a graph, the number of rows in a table, etc.« less

  15. 2013 Science on Saturday Lecture Series | Princeton Plasma Physics Lab

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

    on Saturday Lecture Series View larger image Ramamurti Shankar, John Randolph Huffman Professor of Physics View larger image Professor Joel Langer, Case Western Reserve University View larger image Professor Josh Kohut, Rutgers University View larger image Professor Josh Kohut Rutgers University (underwater robot) View larger image Joshua Peek, Columbia University View larger image Joshua Peek, Columbia University View larger image Ramamurti Shankar, John Randolph Huffman Professor of Physics

  16. Fiducial marker for correlating images

    DOE Patents [OSTI]

    Miller, Lisa Marie; Smith, Randy J.; Warren, John B.; Elliott, Donald

    2011-06-21

    The invention relates to a fiducial marker having a marking grid that is used to correlate and view images produced by different imaging modalities or different imaging and viewing modalities. More specifically, the invention relates to the fiducial marking grid that has a grid pattern for producing either a viewing image and/or a first analytical image that can be overlaid with at least one other second analytical image in order to view a light path or to image different imaging modalities. Depending on the analysis, the grid pattern has a single layer of a certain thickness or at least two layers of certain thicknesses. In either case, the grid pattern is imageable by each imaging or viewing modality used in the analysis. Further, when viewing a light path, the light path of the analytical modality cannot be visualized by viewing modality (e.g., a light microscope objective). By correlating these images, the ability to analyze a thin sample that is, for example, biological in nature but yet contains trace metal ions is enhanced. Specifically, it is desired to analyze both the organic matter of the biological sample and the trace metal ions contained within the biological sample without adding or using extrinsic labels or stains.

  17. Analyzing and Visualizing Cosmological Simulations with ParaView (Journal

    Office of Scientific and Technical Information (OSTI)

    Article) | SciTech Connect Journal Article: Analyzing and Visualizing Cosmological Simulations with ParaView Citation Details In-Document Search Title: Analyzing and Visualizing Cosmological Simulations with ParaView The advent of large cosmological sky surveys - ushering in the era of precision cosmology - has been accompanied by ever larger cosmological simulations. The analysis of these simulations, which currently encompass tens of billions of particles and up to a trillion particles in

  18. Taking the long view

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

    Taking the long view Taking the long view on environmental stewardship A newly articulated mission for environmental stewardship at the Laboratory can be summed up in a simple phrase: clean up the past, control current operations, and create a sustainable future. March 20, 2012 Los Alamos Aerial Aerial view of a canyon in Los Alamos, New Mexico. Contact Environmental Communication & Public Outreach P.O. Box 1663 MS M996 Los Alamos, NM 87545 (505) 667-0216 Email "The future viability of

  19. Taking the long view

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

    2012 Los Alamos Aerial Aerial view of a canyon in Los Alamos, New Mexico. Contact Environmental Communication & Public Outreach P.O. Box 1663 MS M996 Los Alamos, NM 87545 (505)...

  20. TotalView Training 2015

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

    TotalView Training 2015 TotalView Training 2015 NERSC will host an in-depth training course on TotalView, a graphical parallel debugger developed by Rogue Wave Software, on...

  1. The role of subsurface flows in solar surface convection: modeling the spectrum of supergranular and larger scale flows

    SciTech Connect (OSTI)

    Lord, J. W.; Rast, M. P.; Cameron, R. H.; Rempel, M.; Roudier, T.

    2014-09-20

    We model the solar horizontal velocity power spectrum at scales larger than granulation using a two-component approximation to the mass continuity equation. The model takes four times the density scale height as the integral (driving) scale of the vertical motions at each depth. Scales larger than this decay with height from the deeper layers. Those smaller are assumed to follow a Kolmogorov turbulent cascade, with the total power in the vertical convective motions matching that required to transport the solar luminosity in a mixing length formulation. These model components are validated using large-scale radiative hydrodynamic simulations. We reach two primary conclusions. (1) The model predicts significantly more power at low wavenumbers than is observed in the solar photospheric horizontal velocity spectrum. (2) Ionization plays a minor role in shaping the observed solar velocity spectrum by reducing convective amplitudes in the regions of partial helium ionization. The excess low wavenumber power is also seen in the fully nonlinear three-dimensional radiative hydrodynamic simulations employing a realistic equation of state. This adds to other recent evidence suggesting that the amplitudes of large-scale convective motions in the Sun are significantly lower than expected. Employing the same feature tracking algorithm used with observational data on the simulation output, we show that the observed low wavenumber power can be reproduced in hydrodynamic models if the amplitudes of large-scale modes in the deep layers are artificially reduced. Since the large-scale modes have reduced amplitudes, modes on the scale of supergranulation and smaller remain important to convective heat flux even in the deep layers, suggesting that small-scale convective correlations are maintained through the bulk of the solar convection zone.

  2. The View from HQ

    National Nuclear Security Administration (NNSA)

     NA-ASC-500-07 Issue 2 January 2007 The View from HQ Sitting in airports and planes is risky beyond the obvious dangers now in the news. Uninter- rupted time to think may lead to new ideas. Instinct instructs us that when we hear Wash- ington has some new ideas, the result must be bad. After all, ideas suggest change, which is inherently disruptive. Today the notion of predictivity is on my mind as I am leaving the V&V 2007 meeting in Los Alamos. Predictivity is on my short list of

  3. The View from HQ

    National Nuclear Security Administration (NNSA)

    A publication of the Office of Advanced Simulation & Computing, NNSA Defense Programs NA-ASC-500-07-Issue 3 May 2007 The View from HQ by Dimitri Kusnezov I have been spending much of my time these days thinking about science, technology and engineering and the role of the laboratories and how that will be reflected in the Complex of the future. This is on my mind for two reasons: one is my responsibility to produce a science and technology roadmap for Complex 2030-Defense Program's vision

  4. Microscopy imaging device with advanced imaging properties

    DOE Patents [OSTI]

    Ghosh, Kunal; Burns, Laurie; El Gamal, Abbas; Schnitzer, Mark J.; Cocker, Eric; Ho, Tatt Wei

    2015-11-24

    Systems, methods and devices are implemented for microscope imaging solutions. One embodiment of the present disclosure is directed toward an epifluorescence microscope. The microscope includes an image capture circuit including an array of optical sensor. An optical arrangement is configured to direct excitation light of less than about 1 mW to a target object in a field of view of that is at least 0.5 mm.sup.2 and to direct epi-fluorescence emission caused by the excitation light to the array of optical sensors. The optical arrangement and array of optical sensors are each sufficiently close to the target object to provide at least 2.5 .mu.m resolution for an image of the field of view.

  5. New ALS Technique Gives Nanoscale Views of Complex Systems

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

    New ALS Technique Gives Nanoscale Views of Complex Systems New ALS Technique Gives Nanoscale Views of Complex Systems Print Wednesday, 28 May 2014 00:00 Studying and identifying molecules at the mesoscale has always been challenging-even the best microscopes and spectrometers have difficulty simultaneously identifying and spatially resolving this realm of matter, which ranges from about 10 to 1000 nanometers in size. But ALS researchers recently developed a broadband imaging technique that looks

  6. False color viewing device

    DOE Patents [OSTI]

    Kronberg, J.W.

    1991-05-08

    This invention consists of a viewing device for observing objects in near-infrared false-color comprising a pair of goggles with one or more filters in the apertures, and pads that engage the face for blocking stray light from the sides so that all light reaching, the user`s eyes come through the filters. The filters attenuate most visible light and pass near-infrared (having wavelengths longer than approximately 700 nm) and a small amount of blue-green and blue-violet (having wavelengths in the 500 to 520 nm and shorter than 435 nm, respectively). The goggles are useful for looking at vegetation to identify different species and for determining the health of the vegetation, and to detect some forms of camouflage.

  7. False color viewing device

    DOE Patents [OSTI]

    Kronberg, J.W.

    1992-10-20

    A viewing device for observing objects in near-infrared false-color comprising a pair of goggles with one or more filters in the apertures, and pads that engage the face for blocking stray light from the sides so that all light reaching the user's eyes come through the filters. The filters attenuate most visible light and pass near-infrared (having wavelengths longer than approximately 700 nm) and a small amount of blue-green and blue-violet (having wavelengths in the 500 to 520 nm and shorter than 435 nm, respectively). The goggles are useful for looking at vegetation to identify different species and for determining the health of the vegetation, and to detect some forms of camouflage. 7 figs.

  8. False color viewing device

    DOE Patents [OSTI]

    Kronberg, James W. (108 Independent Blvd., Aiken, SC 29801)

    1992-01-01

    A viewing device for observing objects in near-infrared false-color comprising a pair of goggles with one or more filters in the apertures, and pads that engage the face for blocking stray light from the sides so that all light reaching the user's eyes come through the filters. The filters attenuate most visible light and pass near-infrared (having wavelengths longer than approximately 700 nm) and a small amount of blue-green and blue-violet (having wavelengths in the 500 to 520 nm and shorter than 435 nm, respectively). The goggles are useful for looking at vegetation to identify different species and for determining the health of the vegetation, and to detect some forms of camouflage.

  9. Backscatter absorption gas imaging system

    DOE Patents [OSTI]

    McRae, Jr., Thomas G. (Livermore, CA)

    1985-01-01

    A video imaging system for detecting hazardous gas leaks. Visual displays of invisible gas clouds are produced by radiation augmentation of the field of view of an imaging device by radiation corresponding to an absorption line of the gas to be detected. The field of view of an imager is irradiated by a laser. The imager receives both backscattered laser light and background radiation. When a detectable gas is present, the backscattered laser light is highly attenuated, producing a region of contrast or shadow on the image. A flying spot imaging system is utilized to synchronously irradiate and scan the area to lower laser power requirements. The imager signal is processed to produce a video display.

  10. Mountain View Grand | Open Energy Information

    Open Energy Info (EERE)

    Mountain View Grand Jump to: navigation, search Name Mountain View Grand Facility Mountain View Grand Sector Wind energy Facility Type Small Scale Wind Facility Status In Service...

  11. Fermilab | Tritium at Fermilab | Ferry Creek Aerial View

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

    Ferry Creek Aerial View Ferry Creek Aerial View

  12. Fermilab | Tritium at Fermilab | Kress Creek Aerial View

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

    Kress Creek Aerial View Kress Creek Aerial View

  13. Acoustic imaging system

    DOE Patents [OSTI]

    Smith, Richard W.

    1979-01-01

    An acoustic imaging system for displaying an object viewed by a moving array of transducers as the array is pivoted about a fixed point within a given plane. A plurality of transducers are fixedly positioned and equally spaced within a laterally extending array and operatively directed to transmit and receive acoustic signals along substantially parallel transmission paths. The transducers are sequentially activated along the array to transmit and receive acoustic signals according to a preestablished sequence. Means are provided for generating output voltages for each reception of an acoustic signal, corresponding to the coordinate position of the object viewed as the array is pivoted. Receptions from each of the transducers are presented on the same display at coordinates corresponding to the actual position of the object viewed to form a plane view of the object scanned.

  14. Optic for an endoscope/borescope having high resolution and narrow field of view

    DOE Patents [OSTI]

    Stone, Gary F.; Trebes, James E.

    2003-10-28

    An optic having optimized high spatial resolution, minimal nonlinear magnification distortion while at the same time having a limited chromatic focal shift or chromatic aberrations. The optic located at the distal end of an endoscopic inspection tool permits a high resolution, narrow field of view image for medical diagnostic applications, compared to conventional optics for endoscopic instruments which provide a wide field of view, low resolution image. The image coverage is over a narrow (<20 degrees) field of view with very low optical distortion (<5% pin cushion or barrel distortion. The optic is also optimized for best color correction as well as to aid medical diagnostics.

  15. Highland View school | Y-12 National Security Complex

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

    Highland View school Highland View school Aerial showing Highland View school and surrounding homes

  16. Radiation View Factor With Shadowing

    Energy Science and Technology Software Center (OSTI)

    1992-02-24

    FACET calculates the radiation geometric view factor (alternatively called shape factor, angle factor, or configuration factor) between surfaces for axisymmetric, two-dimensional planar and three-dimensional geometries with interposed third surface obstructions. FACET was developed to calculate view factors as input data to finite element heat transfer analysis codes.

  17. A View from the Bridge

    Broader source: Energy.gov [DOE]

    On- and off-highway heavy-duty engine and emission-control technologies will tend to converge in the future while demand for larger trucks and SUVs will continue despite a shift towards lighter, more efficient passenger cars

  18. Untitled Document

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

    Transuranic Waste Transportation Routes Click on image to view larger version

  19. AN INTERFACE REGION IMAGING SPECTROGRAPH FIRST VIEW ON SOLAR...

    Office of Scientific and Technical Information (OSTI)

    more energetic type II, spicules have become a heated topic but their contribution to the energy balance of the low solar atmosphere remains unknown. Here we give a first glimpse...

  20. 2013 Young Women's Conference | Princeton Plasma Physics Lab

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

    400 students and chaperones attended the 2013 Young Women's Conference in Science, Mathematics, Technology, and Engineering - the largest YWC ever View larger image View larger...

  1. Sarah Soltau | Argonne National Laboratory

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

    Soltau works in the lab's Chemical Sciences and Engineering Division. (Click image to view larger.) Soltau works in the lab's Chemical Sciences and Engineering Division. (Click image to view larger.) Argonne postdoctoral researcher Sarah Soltau (at right) works with her supervisor Lisa Utschig-Johnson. (Click image to view larger.) Argonne postdoctoral researcher Sarah Soltau (at right) works with her supervisor Lisa Utschig-Johnson. (Click image to view larger.) (Click image to view larger.)

  2. View from the Bridge | Department of Energy

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

    View from the Bridge View from the Bridge This presentation gives an overview of Caterpillar's R&D focus on advanced diesel engines and exhaust aftertreatment. PDF icon...

  3. Bistatic SAR: Imagery & Image Products.

    SciTech Connect (OSTI)

    Yocky, David A.; Wahl, Daniel E.; Jakowatz, Charles V,

    2014-10-01

    While typical SAR imaging employs a co-located (monostatic) RADAR transmitter and receiver, bistatic SAR imaging separates the transmitter and receiver locations. The transmitter and receiver geometry determines if the scattered signal is back scatter, forward scatter, or side scatter. The monostatic SAR image is backscatter. Therefore, depending on the transmitter/receiver collection geometry, the captured imagery may be quite different that that sensed at the monostatic SAR. This document presents imagery and image products formed from captured signals during the validation stage of the bistatic SAR research. Image quality and image characteristics are discussed first. Then image products such as two-color multi-view (2CMV) and coherent change detection (CCD) are presented.

  4. CASL - Image Gallery

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

    Image Gallery All Works CASL Modeling Applications Multi-Physics Neutronics Thermal Hydraulics Fuel Performance Corrosion Chemistry Secretary Moniz tours the Consortium... Secretary Moniz tours the Consortium for Advanced Simulation of Light Water Reactors (CASL) View The all-quartz test section design allows... The all-quartz test section design allows for simultaneous measurement of the temperature and phase distribution on the boiling surface, as well as measurement of the velocity field in

  5. 3D cloud detection and tracking system for solar forecast using multiple sky imagers

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

    Peng, Zhenzhou; Yu, Dantong; Huang, Dong; Heiser, John; Yoo, Shinjae; Kalb, Paul

    2015-06-23

    We propose a system for forecasting short-term solar irradiance based on multiple total sky imagers (TSIs). The system utilizes a novel method of identifying and tracking clouds in three-dimensional space and an innovative pipeline for forecasting surface solar irradiance based on the image features of clouds. First, we develop a supervised classifier to detect clouds at the pixel level and output cloud mask. In the next step, we design intelligent algorithms to estimate the block-wise base height and motion of each cloud layer based on images from multiple TSIs. Thus, this information is then applied to stitch images together intomore » larger views, which are then used for solar forecasting. We examine the system’s ability to track clouds under various cloud conditions and investigate different irradiance forecast models at various sites. We confirm that this system can 1) robustly detect clouds and track layers, and 2) extract the significant global and local features for obtaining stable irradiance forecasts with short forecast horizons from the obtained images. Finally, we vet our forecasting system at the 32-megawatt Long Island Solar Farm (LISF). Compared with the persistent model, our system achieves at least a 26% improvement for all irradiance forecasts between one and fifteen minutes.« less

  6. 3D cloud detection and tracking system for solar forecast using multiple sky imagers

    SciTech Connect (OSTI)

    Peng, Zhenzhou; Yu, Dantong; Huang, Dong; Heiser, John; Yoo, Shinjae; Kalb, Paul

    2015-06-23

    We propose a system for forecasting short-term solar irradiance based on multiple total sky imagers (TSIs). The system utilizes a novel method of identifying and tracking clouds in three-dimensional space and an innovative pipeline for forecasting surface solar irradiance based on the image features of clouds. First, we develop a supervised classifier to detect clouds at the pixel level and output cloud mask. In the next step, we design intelligent algorithms to estimate the block-wise base height and motion of each cloud layer based on images from multiple TSIs. Thus, this information is then applied to stitch images together into larger views, which are then used for solar forecasting. We examine the system’s ability to track clouds under various cloud conditions and investigate different irradiance forecast models at various sites. We confirm that this system can 1) robustly detect clouds and track layers, and 2) extract the significant global and local features for obtaining stable irradiance forecasts with short forecast horizons from the obtained images. Finally, we vet our forecasting system at the 32-megawatt Long Island Solar Farm (LISF). Compared with the persistent model, our system achieves at least a 26% improvement for all irradiance forecasts between one and fifteen minutes.

  7. Wide field of view telescope

    DOE Patents [OSTI]

    Ackermann, Mark R. (Albuquerque, NM); McGraw, John T. (Placitas, NM); Zimmer, Peter C. (Albuquerque, NM)

    2008-01-15

    A wide field of view telescope having two concave and two convex reflective surfaces, each with an aspheric surface contour, has a flat focal plane array. Each of the primary, secondary, tertiary, and quaternary reflective surfaces are rotationally symmetric about the optical axis. The combination of the reflective surfaces results in a wide field of view in the range of approximately 3.8.degree. to approximately 6.5.degree.. The length of the telescope along the optical axis is approximately equal to or less than the diameter of the largest of the reflective surfaces.

  8. New ALS Technique Gives Nanoscale Views of Complex Systems

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

    ALS Technique Gives Nanoscale Views of Complex Systems Print Studying and identifying molecules at the mesoscale has always been challenging-even the best microscopes and spectrometers have difficulty simultaneously identifying and spatially resolving this realm of matter, which ranges from about 10 to 1000 nanometers in size. But ALS researchers recently developed a broadband imaging technique that looks inside the mesoscale realm with unprecedented sensitivity and range. The new technique,

  9. New ALS Technique Gives Nanoscale Views of Complex Systems

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

    New ALS Technique Gives Nanoscale Views of Complex Systems Print Studying and identifying molecules at the mesoscale has always been challenging-even the best microscopes and spectrometers have difficulty simultaneously identifying and spatially resolving this realm of matter, which ranges from about 10 to 1000 nanometers in size. But ALS researchers recently developed a broadband imaging technique that looks inside the mesoscale realm with unprecedented sensitivity and range. The new technique,

  10. New ALS Technique Gives Nanoscale Views of Complex Systems

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

    New ALS Technique Gives Nanoscale Views of Complex Systems Print Studying and identifying molecules at the mesoscale has always been challenging-even the best microscopes and spectrometers have difficulty simultaneously identifying and spatially resolving this realm of matter, which ranges from about 10 to 1000 nanometers in size. But ALS researchers recently developed a broadband imaging technique that looks inside the mesoscale realm with unprecedented sensitivity and range. The new technique,

  11. New ALS Technique Gives Nanoscale Views of Complex Systems

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

    New ALS Technique Gives Nanoscale Views of Complex Systems Print Studying and identifying molecules at the mesoscale has always been challenging-even the best microscopes and spectrometers have difficulty simultaneously identifying and spatially resolving this realm of matter, which ranges from about 10 to 1000 nanometers in size. But ALS researchers recently developed a broadband imaging technique that looks inside the mesoscale realm with unprecedented sensitivity and range. The new technique,

  12. New ALS Technique Gives Nanoscale Views of Complex Systems

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

    New ALS Technique Gives Nanoscale Views of Complex Systems Print Studying and identifying molecules at the mesoscale has always been challenging-even the best microscopes and spectrometers have difficulty simultaneously identifying and spatially resolving this realm of matter, which ranges from about 10 to 1000 nanometers in size. But ALS researchers recently developed a broadband imaging technique that looks inside the mesoscale realm with unprecedented sensitivity and range. The new technique,

  13. New ALS Technique Gives Nanoscale Views of Complex Systems

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

    New ALS Technique Gives Nanoscale Views of Complex Systems Print Studying and identifying molecules at the mesoscale has always been challenging-even the best microscopes and spectrometers have difficulty simultaneously identifying and spatially resolving this realm of matter, which ranges from about 10 to 1000 nanometers in size. But ALS researchers recently developed a broadband imaging technique that looks inside the mesoscale realm with unprecedented sensitivity and range. The new technique,

  14. Developing Renewable Energy Projects Larger Than 10 MWs at Federal Facilities (Book), Large-Scale Renewable Energy Guide, Federal Energy Management Program (FEMP)

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

    LARGE-SCALE RENEWABLE ENERGY GUIDE Developing Renewable Energy Projects Larger Than 10 MWs at Federal Facilities A Practical Guide to Getting Large-Scale Renewable Energy Projects Financed with Private Capital Cover photos, clockwise from the top: Installing mirrored parabolic trough collectors - (January 19, 2012) Crews work around the clock installing mirrored parabolic trough collectors, built on site, that will cover 3 square miles at Abengoa's Solana Plant. Solana a 280 megawatt utility

  15. Signal and Image Processing Operations

    Energy Science and Technology Software Center (OSTI)

    1995-05-10

    VIEW is a software system for processing arbitrary multidimensional signals. It provides facilities for numerical operations, signal displays, and signal databasing. The major emphasis of the system is on the processing of time-sequences and multidimensional images. The system is designed to be both portable and extensible. It runs currently on UNIX systems, primarily SUN workstations.

  16. For current viewing resistor loads

    DOE Patents [OSTI]

    Lyons, Gregory R. (Tijeras, NM); Hass, Jay B. (Lee's Summit, MO)

    2011-04-19

    The invention comprises a terminal unit for a flat cable comprising a BNC-PCB connector having a pin for electrically contacting one or more conducting elements of a flat cable, and a current viewing resistor having an opening through which the pin extends and having a resistor face that abuts a connector face of the BNC-PCB connector, wherein the device is a terminal unit for the flat cable.

  17. Imaging system for cardiac planar imaging using a dedicated dual-head gamma camera

    DOE Patents [OSTI]

    Majewski, Stanislaw (Morgantown, VA); Umeno, Marc M. (Woodinville, WA)

    2011-09-13

    A cardiac imaging system employing dual gamma imaging heads co-registered with one another to provide two dynamic simultaneous views of the heart sector of a patient torso. A first gamma imaging head is positioned in a first orientation with respect to the heart sector and a second gamma imaging head is positioned in a second orientation with respect to the heart sector. An adjustment arrangement is capable of adjusting the distance between the separate imaging heads and the angle between the heads. With the angle between the imaging heads set to 180 degrees and operating in a range of 140-159 keV and at a rate of up to 500kHz, the imaging heads are co-registered to produce simultaneous dynamic recording of two stereotactic views of the heart. The use of co-registered imaging heads maximizes the uniformity of detection sensitivity of blood flow in and around the heart over the whole heart volume and minimizes radiation absorption effects. A normalization/image fusion technique is implemented pixel-by-corresponding pixel to increase signal for any cardiac region viewed in two images obtained from the two opposed detector heads for the same time bin. The imaging system is capable of producing enhanced first pass studies, bloodpool studies including planar, gated and non-gated EKG studies, planar EKG perfusion studies, and planar hot spot imaging.

  18. AXIS: An instrument for imaging Compton radiographs using the Advanced Radiography Capability on the NIF

    SciTech Connect (OSTI)

    Hall, G. N. Izumi, N.; Tommasini, R.; Carpenter, A. C.; Palmer, N. E.; Zacharias, R.; Felker, B.; Holder, J. P.; Allen, F. V.; Bell, P. M.; Bradley, D.; Montesanti, R.; Landen, O. L.

    2014-11-15

    Compton radiography is an important diagnostic for Inertial Confinement Fusion (ICF), as it provides a means to measure the density and asymmetries of the DT fuel in an ICF capsule near the time of peak compression. The AXIS instrument (ARC (Advanced Radiography Capability) X-ray Imaging System) is a gated detector in development for the National Ignition Facility (NIF), and will initially be capable of recording two Compton radiographs during a single NIF shot. The principal reason for the development of AXIS is the requirement for significantly improved detection quantum efficiency (DQE) at high x-ray energies. AXIS will be the detector for Compton radiography driven by the ARC laser, which will be used to produce Bremsstrahlung X-ray backlighter sources over the range of 50 keV200 keV for this purpose. It is expected that AXIS will be capable of recording these high-energy x-rays with a DQE several times greater than other X-ray cameras at NIF, as well as providing a much larger field of view of the imploded capsule. AXIS will therefore provide an image with larger signal-to-noise that will allow the density and distribution of the compressed DT fuel to be measured with significantly greater accuracy as ICF experiments are tuned for ignition.

  19. Optic for industrial endoscope/borescope with narrow field of view and low distortion

    DOE Patents [OSTI]

    Stone, Gary F.; Trebes, James E.

    2005-08-16

    An optic for the imaging optics on the distal end of a flexible fiberoptic endoscope or rigid borescope inspection tool. The image coverage is over a narrow (<20 degrees) field of view with very low optical distortion (<5% pin cushion or barrel distortion), compared to the typical <20% distortion. The optic will permit non-contact surface roughness measurements using optical techniques. This optic will permit simultaneous collection of selected image plane data, which data can then be subsequently optically processed. The image analysis will yield non-contact surface topology data for inspection where access to the surface does not permit a mechanical styles profilometer verification of surface topology. The optic allows a very broad spectral band or range of optical inspection. It is capable of spectroscopic imaging and fluorescence induced imaging when a scanning illumination source is used. The total viewing angle for this optic is 10 degrees for the full field of view of 10 degrees, compared to 40-70 degrees full angle field of view of the conventional gradient index or GRIN's lens systems.

  20. Better Buildings Network View | February 2016

    Broader source: Energy.gov [DOE]

    The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network.

  1. Better Buildings Network View | January 2016

    Broader source: Energy.gov [DOE]

    The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network.

  2. Better Buildings Network View | January 2014

    Broader source: Energy.gov [DOE]

    The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network.

  3. Better Buildings Network View | April 2014

    Broader source: Energy.gov [DOE]

    The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network.

  4. Better Buildings Network View | May 2015

    Broader source: Energy.gov [DOE]

    The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network.

  5. Better Buildings Network View | March 2014

    Broader source: Energy.gov [DOE]

    The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network.

  6. Better Buildings Network View | September 2014

    Broader source: Energy.gov [DOE]

    The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network.

  7. Better Buildings Network View | February 2014

    Broader source: Energy.gov [DOE]

    The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network.

  8. Better Buildings Network View | May 2014

    Broader source: Energy.gov [DOE]

    The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network.

  9. Better Buildings Network View | January 2015

    Broader source: Energy.gov [DOE]

    The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network.

  10. Better Buildings Network View | December 2014

    Broader source: Energy.gov [DOE]

    The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network.

  11. Better Buildings Network View | June 2014

    Broader source: Energy.gov [DOE]

    The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network.

  12. Better Buildings Network View | November 2014

    Broader source: Energy.gov [DOE]

    The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network.

  13. Better Buildings Network View | October 2014

    Broader source: Energy.gov [DOE]

    The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network.

  14. Better Buildings Network View | October 2015

    Broader source: Energy.gov [DOE]

    The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network.

  15. Better Buildings Network View | April 2015

    Broader source: Energy.gov [DOE]

    The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network.

  16. Better Buildings Network View | December 2015

    Broader source: Energy.gov [DOE]

    The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network.

  17. Better Buildings Network View | June 2015

    Broader source: Energy.gov [DOE]

    The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network.

  18. Better Buildings Network View | November 2015

    Broader source: Energy.gov [DOE]

    The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network.

  19. Better Buildings Network View | March 2015

    Broader source: Energy.gov [DOE]

    The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network.

  20. View Shed - Version 1.0

    Energy Science and Technology Software Center (OSTI)

    2014-09-18

    The View Shed library is a collection of Umbra modules that are used to calculate areas of visual coverage (view sheds). It maps high and low visibility areas and calculates sensor (camera placement for maximum coverage and performance. This assertion includes a managed C++ wrapper code (ViewShedWrapper) to enable C# applications, such as OpShed, to incorporate this library.

  1. Larger foraminifer biostratigraphy of PEACE boreholes, Enewetak Atoll, Western Pacific Ocean. Geologic and geophysical investigations of Enewetak Atoll, Republic of the Marshall Islands. Professional paper

    SciTech Connect (OSTI)

    Gibson, T.G.; Margerum, R.

    1991-01-01

    Larger foraminiferal assemblages, including Lepidocyclina orientalis, Miogypsina thecideaeformis, Miogypsinoides dehaartii, etc., and a smaller foraminifer, Austrotrillina striata, are used to correlate upper Oligocene and lower Miocene strata in the Pacific Atoll Exploration Program (PEACE) boreholes at Enewetak Atoll, Republic of the Marshall Islands, western Pacific Ocean, with the Te and Tf zones of the previously established Tertiary Far East Letter Zonation. Correlation using these two benthic groups is critical because calcareous nannofossils and planktic foraminifers are absent in the lower Miocene strata. Biostratigraphic data from these boreholes delineate a thick (greater than 700 feet) sequence of upper Oligocene and lower Miocene strata corresponding to lower and upper Te zone. These strata document a major period of carbonate accumulation at Enewetak during the Late Oligocene and early Miocene (26 to 18 million years ago).

  2. Experiments at Scale with In-Situ Visualization Using ParaView/Catalyst in RAGE

    SciTech Connect (OSTI)

    Kares, Robert John

    2014-10-31

    In this paper I describe some numerical experiments performed using the ParaView/Catalyst in-situ visualization infrastructure deployed in the Los Alamos RAGE radiation-hydrodynamics code to produce images from a running large scale 3D ICF simulation on the Cielo supercomputer at Los Alamos. The detailed procedures for the creation of the visualizations using ParaView/Catalyst are discussed and several images sequences from the ICF simulation problem produced with the in-situ method are presented. My impressions and conclusions concerning the use of the in-situ visualization method in RAGE are discussed.

  3. Photo of the Week: Satellite View of Sandy at Night | Department of Energy

    Energy Savers [EERE]

    Satellite View of Sandy at Night Photo of the Week: Satellite View of Sandy at Night November 2, 2012 - 10:21am Addthis On Monday, October 29, 2012, Hurricane Sandy made landfall 5 miles south of Atlantic City, New Jersey, with maximum sustained winds near 80 mph. This satellite image was taken 16 to 18 hours before Sandy's landfall on the New Jersey coast, using the Visible Infrared Imaging Radiometer Suite on NASA's Suomi National Polar-orbiting Partnership satellite. The Department of Energy,

  4. Image alignment

    DOE Patents [OSTI]

    Dowell, Larry Jonathan

    2014-04-22

    Disclosed is a method and device for aligning at least two digital images. An embodiment may use frequency-domain transforms of small tiles created from each image to identify substantially similar, "distinguishing" features within each of the images, and then align the images together based on the location of the distinguishing features. To accomplish this, an embodiment may create equal sized tile sub-images for each image. A "key" for each tile may be created by performing a frequency-domain transform calculation on each tile. A information-distance difference between each possible pair of tiles on each image may be calculated to identify distinguishing features. From analysis of the information-distance differences of the pairs of tiles, a subset of tiles with high discrimination metrics in relation to other tiles may be located for each image. The subset of distinguishing tiles for each image may then be compared to locate tiles with substantially similar keys and/or information-distance metrics to other tiles of other images. Once similar tiles are located for each image, the images may be aligned in relation to the identified similar tiles.

  5. Imaging alpha particle detector

    DOE Patents [OSTI]

    Anderson, D.F.

    1980-10-29

    A method and apparatus for detecting and imaging alpha particles sources is described. A dielectric coated high voltage electrode and a tungsten wire grid constitute a diode configuration discharge generator for electrons dislodged from atoms or molecules located in between these electrodes when struck by alpha particles from a source to be quantitatively or qualitatively analyzed. A thin polyester film window allows the alpha particles to pass into the gas enclosure and the combination of the glass electrode, grid and window is light transparent such that the details of the source which is imaged with high resolution and sensitivity by the sparks produced can be observed visually as well. The source can be viewed directly, electronically counted or integrated over time using photographic methods. A significant increase in sensitivity over other alpha particle detectors is observed, and the device has very low sensitivity to gamma or beta emissions which might otherwise appear as noise on the alpha particle signal.

  6. Acoustic imaging microscope

    DOE Patents [OSTI]

    Deason, Vance A.; Telschow, Kenneth L.

    2006-10-17

    An imaging system includes: an object wavefront source and an optical microscope objective all positioned to direct an object wavefront onto an area of a vibrating subject surface encompassed by a field of view of the microscope objective, and to direct a modulated object wavefront reflected from the encompassed surface area through a photorefractive material; and a reference wavefront source and at least one phase modulator all positioned to direct a reference wavefront through the phase modulator and to direct a modulated reference wavefront from the phase modulator through the photorefractive material to interfere with the modulated object wavefront. The photorefractive material has a composition and a position such that interference of the modulated object wavefront and modulated reference wavefront occurs within the photorefractive material, providing a full-field, real-time image signal of the encompassed surface area.

  7. Prairie View Gas Recovery Biomass Facility | Open Energy Information

    Open Energy Info (EERE)

    View Gas Recovery Biomass Facility Jump to: navigation, search Name Prairie View Gas Recovery Biomass Facility Facility Prairie View Gas Recovery Sector Biomass Facility Type...

  8. Better Buildings Network View | September 2015 | Department of...

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

    Better Buildings Network View | September 2015 Better Buildings Network View | September 2015 The Better Buildings Network View monthly newsletter from the U.S. Department of...

  9. A View from the Bridge - DOE Perspective | Department of Energy

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

    A View from the Bridge - DOE Perspective A View from the Bridge - DOE Perspective Broad view of DOE's approach to addressing transportation sector oil dependence PDF icon...

  10. SU-E-T-567: A Three-Field Mono-Isocentric Inverse Treatment Planning Method for the Patients with Larger Breasts

    SciTech Connect (OSTI)

    Zhang, T; Marina, O; Chen, P; Teahan, M; Liu, Q; Benedetti, L

    2014-06-01

    Purpose: The purpose of this study is to develop a three-field monoisocentric inverse breast treatment planning technique without the use of half-beam block. Methods: Conventional three-field breast treatment with supraclavicular half-beam blocked requires two isocenters when the breast is too large to be contained within half-beam. The inferior border of the supraclavicular field and superior borders of the breast fields are matched on patient's skin with the light field. This method causes a large dose variation in the matching region due to daily setup uncertainties and requires a longer treatment setup time. We developed a three-field mono-isocentric planning method for the treatment of larger breasts. The three fields share the same isocenter located in the breast. Beam matching is achieved by rotating collimator, couch and gantry. Furthermore, we employed a mixed open-IMRT inverse optimization method to improve dose uniformity and coverage. Results: Perfect geometric beam matching was achieved by rotating couch, collimator and gantry together. Treatment setup time was significantly reduced without light-field matching during treatment deliveries. Inverse mixed open-IMRT optimization method achieved better dose uniformity and PTV coverage while keeping sufficient air flash to compensate setup and breast shape changes in daily treatments. Conclusion: By eliminating light field matching, the three-field mono-isocentric treatment method can significantly reduce setup time and uncertainty for large breast patients. Plan quality is further improved by inverse IMRT planning.

  11. The Better Buildings Neighborhood View-- April 2013

    Broader source: Energy.gov [DOE]

    The Better Buildings Neighborhood View monthly newsletter from the U.S. Department of Energy's Better Buildings Neighborhood Program - April 2013.

  12. High Performance Builder Spotlight: Clifton View Homes

    SciTech Connect (OSTI)

    2011-01-01

    Clifton View Homess remodel of a 1962 rambler, on Whidbey Island in Washington State, cut energy costs by two-thirds.

  13. Electronic imaging system and technique

    DOE Patents [OSTI]

    Bolstad, J.O.

    1984-06-12

    A method and system for viewing objects obscurred by intense plasmas or flames (such as a welding arc) includes a pulsed light source to illuminate the object, the peak brightness of the light reflected from the object being greater than the brightness of the intense plasma or flame; an electronic image sensor for detecting a pulsed image of the illuminated object, the sensor being operated as a high-speed shutter; and electronic means for synchronizing the shutter operation with the pulsed light source.

  14. Electronic imaging system and technique

    DOE Patents [OSTI]

    Bolstad, Jon O. (Idaho Falls, ID)

    1987-01-01

    A method and system for viewing objects obscurred by intense plasmas or flames (such as a welding arc) includes a pulsed light source to illuminate the object, the peak brightness of the light reflected from the object being greater than the brightness of the intense plasma or flame; an electronic image sensor for detecting a pulsed image of the illuminated object, the sensor being operated as a high-speed shutter; and electronic means for synchronizing the shutter operation with the pulsed light source.

  15. Career Images

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

    Career Images /careers/_assets/images/careers-icon.jpg Career Images Explore a dimensional career at Los Alamos Lab: Take a look at who is working here and what they are doing to have a fulfilling career and balanced work/life. Career Options» Our Workplace» Employee, Retiree Resources» Career Stories» Career Images» Career Videos» Click thumbnails to enlarge. Photos arranged by most recent first, horizontal formats before vertical. See Flickr for more sizes and details. Advanced wireless

  16. The Better Buildings Neighborhood View -- April 2012 | Department of Energy

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

    2 The Better Buildings Neighborhood View -- April 2012 The Better Buildings Neighborhood View monthly newsletter from the U.S. Department of Energy's Better Buildings Neighborhood Program. PDF icon BB Neighborhood View -- April 2012 More Documents & Publications The Better Buildings Neighborhood View -- March 2012 The Better Buildings Neighborhood View - September 2012 The Better Buildings Neighborhood View -- July 2012

  17. The Better Buildings Neighborhood View -- August 2012 | Department of

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

    Energy August 2012 The Better Buildings Neighborhood View -- August 2012 The Better Buildings Neighborhood View monthly newsletter from the U.S. Department of Energy's Better Buildings Neighborhood Program. PDF icon BB Neighborhood View -- August 2012 More Documents & Publications The Better Buildings Neighborhood View - September 2012 The Better Buildings Neighborhood View -- July 2012 The Better Buildings Neighborhood View -- June 2012

  18. The Better Buildings Neighborhood View -- Fall 2011 | Department of Energy

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

    Fall 2011 The Better Buildings Neighborhood View -- Fall 2011 Better Buildings Neighborhood View, from the Better Buildings Neighborhood Program of the U.S. Department of Energy. PDF icon BB Neighborhood View -- Fall 2011 More Documents & Publications The Better Buildings Neighborhood View -- July 2013 The Better Buildings Neighborhood View - October 2012 The Better Buildings Neighborhood View -- December 2013

  19. The Better Buildings Neighborhood View -- January 2012 | Department of

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

    Energy 2 The Better Buildings Neighborhood View -- January 2012 The Better Buildings Neighborhood View monthly newsletter from the U.S. Department of Energy's Better Buildings Neighborhood Program. PDF icon BB Neighborhood View -- January 2012 More Documents & Publications The Better Buildings Neighborhood View -- March 2012 The Better Buildings Neighborhood View -- February 2012 The BetterBuildings View

  20. The Better Buildings Neighborhood View -- January 2013 | Department of

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

    Energy 3 The Better Buildings Neighborhood View -- January 2013 The Better Buildings Neighborhood View monthly newsletter from the U.S. Department of Energy's Better Buildings Neighborhood Program -- January 2013. PDF icon BB Neighborhood View -- January 2013 More Documents & Publications The Better Buildings Neighborhood View - September 2012 The Better Buildings Neighborhood View - October 2012 The Better Buildings Neighborhood View -- April 2013

  1. The Better Buildings Neighborhood View -- July 2012 | Department of Energy

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

    2 The Better Buildings Neighborhood View -- July 2012 The Better Buildings Neighborhood View monthly newsletter from the U.S. Department of Energy's Better Buildings Neighborhood Program. PDF icon BB Neighborhood View -- July 2012 More Documents & Publications The Better Buildings Neighborhood View -- December 2013 The Better Buildings Neighborhood View -- April 2012 The Better Buildings Neighborhood View -- June 2012

  2. The Better Buildings Neighborhood View -- July 2013 | Department of Energy

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

    3 The Better Buildings Neighborhood View -- July 2013 The Better Buildings Neighborhood View monthly newsletter from the U.S. Department of Energy's Better Buildings Neighborhood Program - July 2013. PDF icon BB Neighborhood View -- July 2013 More Documents & Publications The Better Buildings Neighborhood View -- Fall 2011 The Better Buildings Neighborhood View - October 2012 The Better Buildings Neighborhood View -- December 2013

  3. The Better Buildings Neighborhood View -- June 2012 | Department of Energy

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

    June 2012 The Better Buildings Neighborhood View -- June 2012 The Better Buildings Neighborhood View monthly newsletter from the U.S. Department of Energy's Better Buildings Neighborhood Program. PDF icon BB Neighborhood View -- June 2012 More Documents & Publications The Better Buildings Neighborhood View -- August 2012 The Better Buildings Neighborhood View - October 2012 The Better Buildings Neighborhood View -- April 2012

  4. GPU-based Scalable Volumetric Reconstruction for Multi-view Stereo

    SciTech Connect (OSTI)

    Kim, H; Duchaineau, M; Max, N

    2011-09-21

    We present a new scalable volumetric reconstruction algorithm for multi-view stereo using a graphics processing unit (GPU). It is an effectively parallelized GPU algorithm that simultaneously uses a large number of GPU threads, each of which performs voxel carving, in order to integrate depth maps with images from multiple views. Each depth map, triangulated from pair-wise semi-dense correspondences, represents a view-dependent surface of the scene. This algorithm also provides scalability for large-scale scene reconstruction in a high resolution voxel grid by utilizing streaming and parallel computation. The output is a photo-realistic 3D scene model in a volumetric or point-based representation. We demonstrate the effectiveness and the speed of our algorithm with a synthetic scene and real urban/outdoor scenes. Our method can also be integrated with existing multi-view stereo algorithms such as PMVS2 to fill holes or gaps in textureless regions.

  5. Lensless imaging of nanoporous glass with soft X-rays

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

    Turner, Joshua J.; Nelson, Johanna; Huang, Xiaojing; Steinbrener, Jan; Jacobsen, Chris

    2013-06-01

    Coherent soft X-ray diffraction has been used to image nanoporous glass structure in two dimensions using different methods. The merit of the reconstructions was judged using a new method of Fourier phase correlation with a final, refined image. The porous structure was found to have a much larger average size then previously believed.

  6. Employee Spotlight: Peter Friedman | Argonne National Laboratory

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

    (Click image to view larger.) (Click image to view larger.) Employee Spotlight: Peter Friedman By Jo Napolitano * September 25, 2015 Tweet EmailPrint Peter Friedman, 30, is a...

  7. ImageJ

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

    ImageJ ImageJ Description and Overview ImageJ is a public domain Java image processing program inspired by NIH Image. Fiji means Fiji is Just ImageJ, and stands for a customization...

  8. Image Gallery

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

    Image Gallery News & Publications ESnet News Publications and Presentations Galleries Image Gallery Video Gallery ESnet Awards and Honors Contact Us Media Jon Bashor, jbashor@lbl.gov, +1 510 486 5849 or Media@es.net Technical Assistance: 1 800-33-ESnet (Inside the US) 1 800-333-7638 (Inside the US) 1 510-486-7600 (Globally) 1 510-486-7607 (Globally) Report Network Problems: trouble@es.net Provide Web Site Feedback: info@es.net Image Gallery See some of the science we support and the

  9. Better Buildings Network View | March 2014 | Department of Energy

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

    Better Buildings Network View | March 2014 Better Buildings Network View | March 2014 The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network. PDF icon Better Buildings Network View March 2014 More Documents & Publications Better Buildings Network View | June 2015 Better Buildings Network View | May 2015 Better Buildings Network View | April 2014 Home About the Better Buildings Residential Network How to Join Members

  10. The Better Buildings Neighborhood View - October 2012 | Department of

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

    Energy The Better Buildings Neighborhood View - October 2012 The Better Buildings Neighborhood View - October 2012 The Better Buildings Neighborhood View monthly newsletter from the U.S. Department of Energy's Better Buildings Neighborhood Program - October 2012 PDF icon bb_view_october2012.pdf More Documents & Publications The Better Buildings Neighborhood View -- July 2013 The Better Buildings Neighborhood View -- Fall 2011 The Better Buildings Neighborhood View -- December 2

  11. Peter Friedman | Argonne National Laboratory

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

    (Click image to view larger.) (Click image to view larger.) (Click image to view larger.) (Click image to view larger.) Peter Friedman By Jo Napolitano * September 25, 2015 Tweet EmailPrint Peter Friedman, 30, is a Distributed Systems Administrator with the Computing and Information Systems division, the core information technology provider for the laboratory. His group provides essential infrastructure for e-mail, networking, and business services. He joined Argonne in June 2012, having

  12. History Images

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

    History Images Los Alamos History in Images Los Alamos has a proud history and heritage of almost 70 years of science and innovation. The people of the Laboratory work on advanced technologies to provide the best scientific and engineering solutions to many of the nation's most crucial security challenges. Click thumbnails to enlarge. Photos arranged by most recent first, horizontal formats before vertical. See Flickr for more sizes and details. Back in the day Back in the day LA bridge in Los

  13. TotalView Parallel Debugger at NERSC

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

    The performance of the GUI can be greatly improved if used in conjunction with free NX software. The TotalView documentation web page is a good resource for learning more...

  14. JOBAID-VIEWING AN EMPLOYEE MATRIX (SUPERVISOR)

    Broader source: Energy.gov [DOE]

    The purpose of this job aid is to guide supervisor users through the step-by-step process of viewing an employee matrix within SuccessFactors Learning.

  15. A common-view disciplined oscillator

    SciTech Connect (OSTI)

    Lombardi, Michael A.; Dahlen, Aaron P.

    2010-05-15

    This paper describes a common-view disciplined oscillator (CVDO) that locks to a reference time scale through the use of common-view global positioning system (GPS) satellite measurements. The CVDO employs a proportional-integral-derivative controller that obtains near real-time common-view GPS measurements from the internet and provides steering corrections to a local oscillator. A CVDO can be locked to any time scale that makes real-time common-view data available and can serve as a high-accuracy, self-calibrating frequency and time standard. Measurement results are presented where a CVDO is locked to UTC(NIST), the coordinated universal time scale maintained at the National Institute of Standards and Technology in Boulder, Colorado.

  16. Image Composition Engine for Tiles

    Energy Science and Technology Software Center (OSTI)

    2011-08-22

    The Image Composition Engine for Tiles (lceT) is a high-performance sort-last parallel rendering library. It is designed to be used in parallel applications requiring rendering. The primary purpose of IceT is to be integrated into parallel visualization applications such as ParaView to provide parallel rendering capabilities. The Image Composition Engine for Tiles (lceT) is a high-performance sort-last parallel rendering library. IceT uses a "sort-Iasf' approach to rendering. Each process in a parallel application independently rendersmore » a local piece of geometry. The resulting images are given to IceT, and IceT combines the images together to form a single cohesive image. Ice T is also capable of driving tiled displays, largeformat displays comprising an array of smaller displays. To this end IceT can collect the smaller tile images and organize them such that the entire tiled display can be driven. Ice T takes advantage of spatial coherence in geometry by identifying empty regions of the display and reducing the overall required work.« less

  17. Storage and retrieval of large digital images

    DOE Patents [OSTI]

    Bradley, Jonathan N. (Los Alamos, NM)

    1998-01-01

    Image compression and viewing are implemented with (1) a method for performing DWT-based compression on a large digital image with a computer system possessing a two-level system of memory and (2) a method for selectively viewing areas of the image from its compressed representation at multiple resolutions and, if desired, in a client-server environment. The compression of a large digital image I(x,y) is accomplished by first defining a plurality of discrete tile image data subsets T.sub.ij (x,y) that, upon superposition, form the complete set of image data I(x,y). A seamless wavelet-based compression process is effected on I(x,y) that is comprised of successively inputting the tiles T.sub.ij (x,y) in a selected sequence to a DWT routine, and storing the resulting DWT coefficients in a first primary memory. These coefficients are periodically compressed and transferred to a secondary memory to maintain sufficient memory in the primary memory for data processing. The sequence of DWT operations on the tiles T.sub.ij (x,y) effectively calculates a seamless DWT of I(x,y). Data retrieval consists of specifying a resolution and a region of I(x,y) for display. The subset of stored DWT coefficients corresponding to each requested scene is determined and then decompressed for input to an inverse DWT, the output of which forms the image display. The repeated process whereby image views are specified may take the form an interaction with a computer pointing device on an image display from a previous retrieval.

  18. Storage and retrieval of large digital images

    DOE Patents [OSTI]

    Bradley, J.N.

    1998-01-20

    Image compression and viewing are implemented with (1) a method for performing DWT-based compression on a large digital image with a computer system possessing a two-level system of memory and (2) a method for selectively viewing areas of the image from its compressed representation at multiple resolutions and, if desired, in a client-server environment. The compression of a large digital image I(x,y) is accomplished by first defining a plurality of discrete tile image data subsets T{sub ij}(x,y) that, upon superposition, form the complete set of image data I(x,y). A seamless wavelet-based compression process is effected on I(x,y) that is comprised of successively inputting the tiles T{sub ij}(x,y) in a selected sequence to a DWT routine, and storing the resulting DWT coefficients in a first primary memory. These coefficients are periodically compressed and transferred to a secondary memory to maintain sufficient memory in the primary memory for data processing. The sequence of DWT operations on the tiles T{sub ij}(x,y) effectively calculates a seamless DWT of I(x,y). Data retrieval consists of specifying a resolution and a region of I(x,y) for display. The subset of stored DWT coefficients corresponding to each requested scene is determined and then decompressed for input to an inverse DWT, the output of which forms the image display. The repeated process whereby image views are specified may take the form an interaction with a computer pointing device on an image display from a previous retrieval. 6 figs.

  19. Nuclear medicine imaging system

    DOE Patents [OSTI]

    Bennett, Gerald W. (East Moriches, NY); Brill, A. Bertrand (Shoreham, NY); Bizais, Yves J. C. (Upton, NY); Rowe, R. Wanda (Upton, NY); Zubal, I. George (Upton, NY)

    1986-01-01

    A nuclear medicine imaging system having two large field of view scintillation cameras mounted on a rotatable gantry and being movable diametrically toward or away from each other is disclosed. In addition, each camera may be rotated about an axis perpendicular to the diameter of the gantry. The movement of the cameras allows the system to be used for a variety of studies, including positron annihilation, and conventional single photon emission, as well as static orthogonal dual multi-pinhole tomography. In orthogonal dual multi-pinhole tomography, each camera is fitted with a seven pinhole collimator to provide seven views from slightly different perspectives. By using two cameras at an angle to each other, improved sensitivity and depth resolution is achieved. The computer system and interface acquires and stores a broad range of information in list mode, including patient physiological data, energy data over the full range detected by the cameras, and the camera position. The list mode acquisition permits the study of attenuation as a result of Compton scatter, as well as studies involving the isolation and correlation of energy with a range of physiological conditions.

  20. Speckle averaging system for laser raster-scan image projection

    DOE Patents [OSTI]

    Tiszauer, Detlev H. (Tracy, CA); Hackel, Lloyd A. (Livermore, CA)

    1998-03-17

    The viewers' perception of laser speckle in a laser-scanned image projection system is modified or eliminated by the addition of an optical deflection system that effectively presents a new speckle realization at each point on the viewing screen to each viewer for every scan across the field. The speckle averaging is accomplished without introduction of spurious imaging artifacts.

  1. Speckle averaging system for laser raster-scan image projection

    DOE Patents [OSTI]

    Tiszauer, D.H.; Hackel, L.A.

    1998-03-17

    The viewers` perception of laser speckle in a laser-scanned image projection system is modified or eliminated by the addition of an optical deflection system that effectively presents a new speckle realization at each point on the viewing screen to each viewer for every scan across the field. The speckle averaging is accomplished without introduction of spurious imaging artifacts. 5 figs.

  2. Better Buildings Network View | February 2015 | Department of Energy

    Office of Environmental Management (EM)

    5 Better Buildings Network View | February 2015 The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network. PDF icon Better Buildings Network View February 2015 More Documents & Publications Better Buildings Network View | June 2015 Nothing But Networking for Residential Network Members Better Buildings Network View | November

  3. The Better Buildings Neighborhood View - Summer 2011 | Department of Energy

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

    Summer 2011 The Better Buildings Neighborhood View - Summer 2011 The quarterly update newsletter of the Better Buildings program of the U.S. Department of Energy. PDF icon BB Neighborhood View -- Summer 2011 More Documents & Publications The Better Buildings Neighborhood View -- January 2012 The Better Buildings Neighborhood View -- March 2012 The Better Buildings Neighborhood View -- May

  4. The Better Buildings Neighborhood View -- March 2012 | Department of Energy

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

    March 2012 The Better Buildings Neighborhood View -- March 2012 The Better Buildings Neighborhood View monthly newsletter from the U.S. Department of Energy's Better Buildings Neighborhood Program PDF icon BB Neighborhood View -- March 2012 More Documents & Publications The Better Buildings Neighborhood View -- February 2012 The Better Buildings Neighborhood View -- January 2012 Commercial Buildings Integration Program Overview - 2015 BTO Peer Review

  5. The Better Buildings Neighborhood View -- May 2012 | Department of Energy

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

    - May 2012 The Better Buildings Neighborhood View -- May 2012 The Better Buildings Neighborhood View monthly newsletter from the U.S. Department of Energy's Better Buildings Neighborhood Program PDF icon BB Neighborhood View -- May 2012 More Documents & Publications The Better Buildings Neighborhood View - September 2012 The Better Buildings Neighborhood View -- April

  6. Fourier plane image amplifier

    DOE Patents [OSTI]

    Hackel, L.A.; Hermann, M.R.; Dane, C.B.; Tiszauer, D.H.

    1995-12-12

    A solid state laser is frequency tripled to 0.3 {micro}m. A small portion of the laser is split off and generates a Stokes seed in a low power oscillator. The low power output passes through a mask with the appropriate hole pattern. Meanwhile, the bulk of the laser output is focused into a larger stimulated Brillouin scattering (SBS) amplifier. The low power beam is directed through the same cell in the opposite direction. The majority of the amplification takes place at the focus which is the fourier transform plane of the mask image. The small holes occupy large area at the focus and thus are preferentially amplified. The amplified output is now imaged onto the multichip module where the holes are drilled. Because of the fourier plane amplifier, only about 1/10th the power of a competitive system is needed. This concept allows less expensive masks to be used in the process and requires much less laser power. 1 fig.

  7. Fourier plane image amplifier

    DOE Patents [OSTI]

    Hackel, Lloyd A.; Hermann, Mark R.; Dane, C. Brent; Tiszauer, Detlev H.

    1995-01-01

    A solid state laser is frequency tripled to 0.3 .mu.m. A small portion of the laser is split off and generates a Stokes seed in a low power oscillator. The low power output passes through a mask with the appropriate hole pattern. Meanwhile, the bulk of the laser output is focused into a larger stimulated Brillouin scattering (SBS) amplifier. The low power beam is directed through the same cell in the opposite direction. The majority of the amplification takes place at the focus which is the fourier transform plane of the mask image. The small holes occupy large area at the focus and thus are preferentially amplified. The amplified output is now imaged onto the multichip module where the holes are drilled. Because of the fourier plane amplifier, only .about.1/10th the power of a competitive system is needed. This concept allows less expensive masks to be used in the process and requires much less laser power.

  8. ARM - Evaluation Product - Multispectral Thermal Imager (MTI)

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

    ProductsMultispectral Thermal Imager (MTI) ARM Data Discovery Browse Data Documentation Use the Data File Inventory tool to view data availability at the file level. Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Evaluation Product : Multispectral Thermal Imager (MTI) The Multispectral Thermal Imager is a space-based research and development project sponsored by the U.S. Department of Energy (DOE), Office of Nonproliferation and National

  9. The BetterBuildings View | Department of Energy

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

    The BetterBuildings View The BetterBuildings View The BetterBuildings View Newsletter, April 2011, from the U.S. Department of Energy's Better Buildings Neighborhood Program. PDF...

  10. Mountain View Power Partners III Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    III Wind Farm Jump to: navigation, search Name Mountain View Power Partners III Wind Farm Facility Mountain View Power Partners III Sector Wind energy Facility Type Commercial...

  11. City of Mountain View, Missouri (Utility Company) | Open Energy...

    Open Energy Info (EERE)

    View Place: Missouri Phone Number: (417) 934-2601 Website: mountainviewmo.comindex.phpg Facebook: https:www.facebook.comCityOfMountainViewMissouri Outage Hotline: (877)...

  12. Residential Windows and Window Coverings: A Detailed View of...

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

    View of the Installed Base and User Behavior Residential Windows and Window Coverings: A Detailed View of the Installed Base and User Behavior Includes information about the ...

  13. Mountain View Power Partners II Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    II Wind Farm Jump to: navigation, search Name Mountain View Power Partners II Wind Farm Facility Mountain View Power Partners II Sector Wind energy Facility Type Commercial Scale...

  14. OpenEI:Neutral point of view | Open Energy Information

    Open Energy Info (EERE)

    point of view Jump to: navigation, search Neutral point of view (NPOV) means that articles and content contributed or edited on the platform must be unbiased. All significant...

  15. The Better Buildings Neighborhood View -- January 2013 | Department...

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

    3 The Better Buildings Neighborhood View -- January 2013 The Better Buildings Neighborhood View monthly newsletter from the U.S. Department of Energy's Better Buildings...

  16. Better Buildings Network View | May 2015 | Department of Energy

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

    5 Better Buildings Network View | May 2015 The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network. PDF icon...

  17. Better Buildings Network View | May 2014 | Department of Energy

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

    4 Better Buildings Network View | May 2014 The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network. PDF icon...

  18. Better Buildings Network View | February 2014 | Department of...

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

    4 Better Buildings Network View | February 2014 The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network. PDF...

  19. Better Buildings Network View | April 2014 | Department of Energy

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

    4 Better Buildings Network View | April 2014 The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network. PDF...

  20. Better Buildings Network View | September 2014 | Department of...

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

    September 2014 Better Buildings Network View | September 2014 The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential...

  1. The Better Buildings Neighborhood View -- July 2013 | Department...

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

    3 The Better Buildings Neighborhood View -- July 2013 The Better Buildings Neighborhood View monthly newsletter from the U.S. Department of Energy's Better Buildings Neighborhood...

  2. Better Buildings Network View | July-August 2014 | Department...

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

    4 Better Buildings Network View | July-August 2014 The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network....

  3. Better Buildings Network View | March 2014 | Department of Energy

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

    4 Better Buildings Network View | March 2014 The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network. PDF...

  4. Better Buildings Network View | July-August 2015 | Department...

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

    5 Better Buildings Network View | July-August 2015 The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network....

  5. The Better Buildings Neighborhood View -- April 2013 | Department...

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

    3 The Better Buildings Neighborhood View -- April 2013 The Better Buildings Neighborhood View monthly newsletter from the U.S. Department of Energy's Better Buildings Neighborhood...

  6. The Better Buildings Neighborhood View -- April 2012 | Department...

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

    2 The Better Buildings Neighborhood View -- April 2012 The Better Buildings Neighborhood View monthly newsletter from the U.S. Department of Energy's Better Buildings Neighborhood...

  7. Better Buildings Network View | November 2014 | Department of...

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

    4 Better Buildings Network View | November 2014 The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network. PDF...

  8. Better Buildings Network View | January 2014 | Department of...

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

    4 Better Buildings Network View | January 2014 The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network. PDF...

  9. Better Buildings Network View | December 2015 | Department of...

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

    5 Better Buildings Network View | December 2015 The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network. PDF...

  10. The Better Buildings Neighborhood View -- August 2012 | Department...

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

    August 2012 The Better Buildings Neighborhood View -- August 2012 The Better Buildings Neighborhood View monthly newsletter from the U.S. Department of Energy's Better Buildings...

  11. Better Buildings Network View | June 2015 | Department of Energy

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

    5 Better Buildings Network View | June 2015 The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network. PDF icon...

  12. Better Buildings Network View | December 2014 | Department of...

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

    4 Better Buildings Network View | December 2014 The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network. PDF...

  13. Better Buildings Network View | November 2015 | Department of...

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

    5 Better Buildings Network View | November 2015 The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network. PDF...

  14. The Better Buildings Neighborhood View -- March 2012 | Department...

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

    March 2012 The Better Buildings Neighborhood View -- March 2012 The Better Buildings Neighborhood View monthly newsletter from the U.S. Department of Energy's Better Buildings...

  15. The Better Buildings Neighborhood View -- June 2012 | Department...

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

    June 2012 The Better Buildings Neighborhood View -- June 2012 The Better Buildings Neighborhood View monthly newsletter from the U.S. Department of Energy's Better Buildings...

  16. The Better Buildings Neighborhood View -- July 2012 | Department...

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

    2 The Better Buildings Neighborhood View -- July 2012 The Better Buildings Neighborhood View monthly newsletter from the U.S. Department of Energy's Better Buildings Neighborhood...

  17. Better Buildings Network View | October 2014 | Department of...

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

    4 Better Buildings Network View | October 2014 The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network. PDF...

  18. The Better Buildings Neighborhood View -- January 2012 | Department...

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

    2 The Better Buildings Neighborhood View -- January 2012 The Better Buildings Neighborhood View monthly newsletter from the U.S. Department of Energy's Better Buildings...

  19. Better Buildings Network View | April 2015 | Department of Energy

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

    5 Better Buildings Network View | April 2015 The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network. PDF...

  20. Better Buildings Network View | January 2015 | Department of...

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

    5 Better Buildings Network View | January 2015 The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network. PDF...

  1. Better Buildings Network View | February 2015 | Department of...

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

    5 Better Buildings Network View | February 2015 The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network. PDF...

  2. Better Buildings Network View | June 2014 | Department of Energy

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

    4 Better Buildings Network View | June 2014 The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network. PDF icon...

  3. The Better Buildings Neighborhood View -- May 2012 | Department...

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

    - May 2012 The Better Buildings Neighborhood View -- May 2012 The Better Buildings Neighborhood View monthly newsletter from the U.S. Department of Energy's Better Buildings...

  4. Better Buildings Network View | March 2015 | Department of Energy

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

    5 Better Buildings Network View | March 2015 The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network. PDF...

  5. The Better Buildings Neighborhood View -- Fall 2011 | Department...

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

    Fall 2011 The Better Buildings Neighborhood View -- Fall 2011 Better Buildings Neighborhood View, from the Better Buildings Neighborhood Program of the U.S. Department of Energy....

  6. Better Buildings Network View | October 2015 | Department of...

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

    5 Better Buildings Network View | October 2015 The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network. PDF...

  7. Advanced Imaging Optics Utilizing Wavefront Coding.

    SciTech Connect (OSTI)

    Scrymgeour, David; Boye, Robert; Adelsberger, Kathleen

    2015-06-01

    Image processing offers a potential to simplify an optical system by shifting some of the imaging burden from lenses to the more cost effective electronics. Wavefront coding using a cubic phase plate combined with image processing can extend the system's depth of focus, reducing many of the focus-related aberrations as well as material related chromatic aberrations. However, the optimal design process and physical limitations of wavefront coding systems with respect to first-order optical parameters and noise are not well documented. We examined image quality of simulated and experimental wavefront coded images before and after reconstruction in the presence of noise. Challenges in the implementation of cubic phase in an optical system are discussed. In particular, we found that limitations must be placed on system noise, aperture, field of view and bandwidth to develop a robust wavefront coded system.

  8. RVA: A Plugin for ParaView 3.14

    Energy Science and Technology Software Center (OSTI)

    2015-09-04

    RVA is a plugin developed for the 64-bit Windows version of the ParaView 3.14 visualization package. RVA is designed to provide support in the visualization and analysis of complex reservoirs being managed using multi-fluid EOR techniques. RVA, for Reservoir Visualization and Analysis, was developed at the University of Illinois at Urbana-Champaign, with contributions from the Illinois State Geological Survey, Department of Computer Science and National Center for Supercomputing Applications. RVA was designed to utilize andmore » enhance the state-of-the-art visualization capabilities within ParaView, readily allowing joint visualization of geologic framework and reservoir fluid simulation model results. Particular emphasis was placed on enabling visualization and analysis of simulation results highlighting multiple fluid phases, multiple properties for each fluid phase (including flow lines), multiple geologic models and multiple time steps. Additional advanced functionality was provided through the development of custom code to implement data mining capabilities. The built-in functionality of ParaView provides the capacity to process and visualize data sets ranging from small models on local desktop systems to extremely large models created and stored on remote supercomputers. The RVA plugin that we developed and the associated User Manual provide improved functionality through new software tools, and instruction in the use of ParaView-RVA, targeted to petroleum engineers and geologists in industry and research. The RVA web site (http://rva.cs.illinois.edu) provides an overview of functions, and the development web site (https://github.com/shaffer1/RVA) provides ready access to the source code, compiled binaries, user manual, and a suite of demonstration data sets. Key functionality has been included to support a range of reservoirs visualization and analysis needs, including: sophisticated connectivity analysis, cross sections through simulation results between selected wells, simplified volumetric calculations, global vertical exaggeration adjustments, ingestion of UTChem simulation results, ingestion of Isatis geostatistical framework models, interrogation of joint geologic and reservoir modeling results, joint visualization and analysis of well history files, location-targeted visualization, advanced correlation analysis, visualization of flow paths, and creation of static images and animations highlighting targeted reservoir features.« less

  9. Imaging bolometer

    DOE Patents [OSTI]

    Wurden, Glen A. (Los Alamos, NM)

    1999-01-01

    Radiation-hard, steady-state imaging bolometer. A bolometer employing infrared (IR) imaging of a segmented-matrix absorber of plasma radiation in a cooled-pinhole camera geometry is described. The bolometer design parameters are determined by modeling the temperature of the foils from which the absorbing matrix is fabricated by using a two-dimensional time-dependent solution of the heat conduction equation. The resulting design will give a steady-state bolometry capability, with approximately 100 Hz time resolution, while simultaneously providing hundreds of channels of spatial information. No wiring harnesses will be required, as the temperature-rise data will be measured via an IR camera. The resulting spatial data may be used to tomographically investigate the profile of plasmas.

  10. Imaging bolometer

    DOE Patents [OSTI]

    Wurden, G.A.

    1999-01-19

    Radiation-hard, steady-state imaging bolometer is disclosed. A bolometer employing infrared (IR) imaging of a segmented-matrix absorber of plasma radiation in a cooled-pinhole camera geometry is described. The bolometer design parameters are determined by modeling the temperature of the foils from which the absorbing matrix is fabricated by using a two-dimensional time-dependent solution of the heat conduction equation. The resulting design will give a steady-state bolometry capability, with approximately 100 Hz time resolution, while simultaneously providing hundreds of channels of spatial information. No wiring harnesses will be required, as the temperature-rise data will be measured via an IR camera. The resulting spatial data may be used to tomographically investigate the profile of plasmas. 2 figs.

  11. Advanced Imaging

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

    Imaging - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Fuel Cycle Defense Waste Management Programs Advanced Nuclear Energy

  12. Sabourov_2006 (much larger file).pdf

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

    Amanda Sabourov 2006 Understanding the 7 Li(d, n) 8 Be Reaction at Very Low Energies by Amanda Sabourov Department of Physics Duke University Date Approved: Henry R. Weller, Supervisor Shailesh Chandrasekharan Haiyan Gao Calvin Howell Ashutosh Kotwal Dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy in the Department of Physics in the Graduate School of Duke University 2006 Abstract (Physics - TUNL) Understanding the 7 Li(d, n) 8 Be Reaction

  13. The LASS (Larger Aperture Superconducting Solenoid) spectrometer

    SciTech Connect (OSTI)

    Aston, D.; Awaji, N.; Barnett, B.; Bienz, T.; Bierce, R.; Bird, F.; Bird, L.; Blockus, D.; Carnegie, R.K.; Chien, C.Y.

    1986-04-01

    LASS is the acronym for the Large Aperture Superconducting Solenoid spectrometer which is located in an rf-separated hadron beam at the Stanford Linear Accelerator Center. This spectrometer was constructed in order to perform high statistics studies of multiparticle final states produced in hadron reactions. Such reactions are frequently characterized by events having complicated topologies and/or relatively high particle multiplicity. Their detailed study requires a spectrometer which can provide good resolution in momentum and position over almost the entire solid angle subtended by the production point. In addition, good final state particle identification must be available so that separation of the many kinematically-overlapping final states can be achieved. Precise analyses of the individual reaction channels require high statistics, so that the spectrometer must be capable of high data-taking rates in order that such samples can be acquired in a reasonable running time. Finally, the spectrometer must be complemented by a sophisticated off-line analysis package which efficiently finds tracks, recognizes and fits event topologies and correctly associates the available particle identification information. This, together with complicated programs which perform specific analysis tasks such as partial wave analysis, requires a great deal of software effort allied to a very large computing capacity. This paper describes the construction and performance of the LASS spectrometer, which is an attempt to realize the features just discussed. The configuration of the spectrometer corresponds to the data-taking on K and K interactions in hydrogen at 11 GeV/c which took place in 1981 and 1982. This constitutes a major upgrade of the configuration used to acquire lower statistics data on 11 GeV/c K p interactions during 1977 and 1978, which is also described briefly.

  14. January 2013 Most Viewed Documents for Geosciences | OSTI, US Dept of

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

    Energy, Office of Scientific and Technical Information January 2013 Most Viewed Documents for Geosciences Evaluation of Cavity Collapse and Surface Crater Formation for Selected Lawrence Livermore National Laboratory Underground Nuclear Tests - 2011, Part 2 Pawloski, G A Evaluation of Cross-Hole Seismic Tomography for Imaging Low Resistance Intervals and Associated Carbonate Sediments in Coastal Plain Sequences on the Savannah River Site, South Carolina Cumbest, R. J. Characteristics of

  15. Linked-View Parallel Coordinate Plot Renderer

    Energy Science and Technology Software Center (OSTI)

    2011-06-28

    This software allows multiple linked views for interactive querying via map-based data selection, bar chart analytic overlays, and high dynamic range (HDR) line renderings. The major component of the visualization package is a parallel coordinate renderer with binning, curved layouts, shader-based rendering, and other techniques to allow interactive visualization of multidimensional data.

  16. The Better Buildings Neighborhood View - September 2012 | Department of

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

    Energy September 2012 The Better Buildings Neighborhood View - September 2012 Monthly newsletter from the U.S. Department of Energy's Better Buildings Neighborhood Program. PDF icon BB Neighborhood View -- September 2012 More Documents & Publications The Better Buildings Neighborhood View -- Fall 2011 The Better Buildings Neighborhood View -- July

  17. Better Buildings Network View | September 2015 | Department of Energy

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

    Better Buildings Network View | September 2015 Better Buildings Network View | September 2015 The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network. PDF icon Better Buildings Network View September 2015 More Documents & Publications TTWG Licensing Guide ITP Aluminum: Technical Working Group on Inert Anode Technologies EIS-0333: Draft Environmental Impact Statement

  18. Dynamic imaging with electron microscopy

    ScienceCinema (OSTI)

    Campbell, Geoffrey; McKeown, Joe; Santala, Melissa

    2014-05-30

    Livermore researchers have perfected an electron microscope to study fast-evolving material processes and chemical reactions. By applying engineering, microscopy, and laser expertise to the decades-old technology of electron microscopy, the dynamic transmission electron microscope (DTEM) team has developed a technique that can capture images of phenomena that are both very small and very fast. DTEM uses a precisely timed laser pulse to achieve a short but intense electron beam for imaging. When synchronized with a dynamic event in the microscope's field of view, DTEM allows scientists to record and measure material changes in action. A new movie-mode capability, which earned a 2013 R&D 100 Award from R&D Magazine, uses up to nine laser pulses to sequentially capture fast, irreversible, even one-of-a-kind material changes at the nanometer scale. DTEM projects are advancing basic and applied materials research, including such areas as nanostructure growth, phase transformations, and chemical reactions.

  19. Reflective optical imaging system with balanced distortion

    SciTech Connect (OSTI)

    Chapman, Henry N.; Hudyma, Russell M.; Shafer, David R.; Sweeney, Donald W.

    1999-01-01

    An optical system compatible with short wavelength (extreme ultraviolet) An optical system compatible with short wavelength (extreme ultraviolet) radiation comprising four reflective elements for projecting a mask image onto a substrate. The four optical elements comprise, in order from object to image, convex, concave, convex and concave mirrors. The optical system is particularly suited for step and scan lithography methods. The invention enables the use of larger slit dimensions associated with ring field scanning optics, improves wafer throughput and allows higher semiconductor device density. The inventive optical system is characterized by reduced dynamic distortion because the static distortion is balanced across the slit width.

  20. Reflective optical imaging systems with balanced distortion

    DOE Patents [OSTI]

    Hudyma, Russell M. (San Ramon, CA)

    2001-01-01

    Optical systems compatible with extreme ultraviolet radiation comprising four reflective elements for projecting a mask image onto a substrate are described. The four optical elements comprise, in order from object to image, convex, concave, convex and concave mirrors. The optical systems are particularly suited for step and scan lithography methods. The invention enables the use of larger slit dimensions associated with ring field scanning optics, improves wafer throughput, and allows higher semiconductor device density. The inventive optical systems are characterized by reduced dynamic distortion because the static distortion is balanced across the slit width.

  1. Frontal view reconstruction for iris recognition

    DOE Patents [OSTI]

    Santos-Villalobos, Hector J; Bolme, David S; Boehnen, Chris Bensing

    2015-02-17

    Iris recognition can be accomplished for a wide variety of eye images by correcting input images with an off-angle gaze. A variety of techniques, from limbus modeling, corneal refraction modeling, optical flows, and genetic algorithms can be used. A variety of techniques, including aspherical eye modeling, corneal refraction modeling, ray tracing, and the like can be employed. Precomputed transforms can enhance performance for use in commercial applications. With application of the technologies, images with significantly unfavorable gaze angles can be successfully recognized.

  2. The Better Buildings Neighborhood View -- December 2013 | Department of

    Energy Savers [EERE]

    Energy The Better Buildings Neighborhood View -- December 2013 The Better Buildings Neighborhood View -- December 2013 The Better Buildings Neighborhood View monthly newsletter from the U.S. Department of Energy's Better Buildings Neighborhood Program. PDF icon BB Neighborhood View -- December 2013 More Documents & Publications The Better Buildings Neighborhood View -- July 2013 Focus Series: Philadelphia Energyworks: In the City of Brotherly Love, Sharing Know-How Leads to

  3. The Better Buildings Neighborhood View -- February 2012 | Department of

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

    Energy February 2012 The Better Buildings Neighborhood View -- February 2012 The Better Buildings Neighborhood View monthly newsletter from the U.S. Department of Energy's Better Buildings Neighborhood Program. PDF icon BB Neighborhood View -- February 2012 More Documents & Publications The Better Buildings Neighborhood View -- March 2012 The Better Buildings Neighborhood View -- January 2012 Microsoft Word - T4_VEIC_TO2_ Sub3_Residential Retrofit Program Design Guide Play Book_TEAM 4

  4. Lensless imaging

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

    4 Lensless Imaging of Magnetic Nanostructures by X-ray Spectro-Holography J. Lüning, W. F. Schlotter and J. Stöhr (SSRL) The unprecedented properties of X-ray free electron lasers (X-FELs) under development world wide will open the door for entirely new classes of experiments. The ultra-short time structure of the ultra-bright x-ray pulses will revolutionize the field of femtosecond x-ray science, since it will become possible to obtain sufficient information about a system from probing it

  5. Wide swath imaging spectrometer utilizing a multi-modular design

    DOE Patents [OSTI]

    Chrisp, Michael P.

    2010-10-05

    A wide swath imaging spectrometer utilizing an array of individual spectrometer modules in the telescope focal plane to provide an extended field of view. The spectrometer modules with their individual detectors are arranged so that their slits overlap with motion on the scene providing contiguous spatial coverage. The number of modules can be varied to take full advantage of the field of view available from the telescope.

  6. Better Buildings Network View November 2015

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

    BetterBuildings Network View News From the Field Capturing Efficiency in Residential Real Estate Transactions The U.S. Departmenr of Energy (DOE) has released More Real Estate Resources a new white paper that highlights how residential programs can help make home resale prices account for the value of high- performance energy efficiency features to appraisers, real estate agents, mortgage lenders, homebuyers, and sellers. Dig deeper into the hot topic of Multiple studies in recent valuing energy

  7. Better Buildings Network View, April 2015

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

    Better Buildings Network View News From the Field April 2015 On Earth Day, Discover Solutions in More Than 100 Past Peer Exchange Calls Mark Earth Day by going to a new interactive archive Expand Your Solutions containing 108 Peer Search Exchange Call summaries dating as far back as 2011 that is now available for residential energy efficiency program research and application. Users can sort summaries by call topic, title, and date, Find even more proven practices in the Better Buildings

  8. Better Buildings Network View, July 2014

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

    Better Buildings Network View | July 2014 Browse the New Better Buildings Residential Network Website We invite you to visit the new Better Buildings Residential Network website launched on July 14, 2014. Visitors can find everything from how to join the Residential Network to the benefits of becoming a member. Following are a few highlights: Upcoming Peer Exchange Call information is listed on our Home page. Our Resources page, devoted to materials such as program newsletters and the U.S.

  9. Better Buildings Network View, June 2015

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

    Better Buildings Network View News From the Field June 2015 First-Ever Network Member Gathering Held at 2015 Better Buildings Summit More than 800 participants met at the 2015 Better Buildings Summit in Washington, D.C., to engage in dialogue focused on sharing proven approaches for greater energy efficiency in buildings. This year was the first to incorporate the residential sector with targeted sessions for energy efficiency program administrators and partners. Speakers included leaders from

  10. Better Buildings Network View, March 2014

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

    From the Field Better Buildings Network View | March 2014 March 2014 Network Members Invited to Review Optional Program Benchmarking Guide The first Better Buildings Residential Network Next Steps voluntary initiative will Winter 2014: DOE finalizes benchmark programs so guide and pilots it with up to members can see how they nine Residential Network compare to others, and you members are invited to provide DOE evaluates feedback on a draft Guide Spring 2014: pilot and starts defining for

  11. Better Buildings Network View, March 2015

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

    Network View | March 2015 News From the Field March 2015 Motivate Energy Upgrades With New Network Incentives Toolkit The Better Buildings Residential Network has Voluntary Initiatives Get developed a Designing Social-Take Part Incentives Toolkit to help energy efficiency organizations design incentives that motivate potential customers to act by lowering the risk, decreasing the cost, or offering additional benefits with home energy upgrades. Many residential energy efficiency programs have

  12. Better Buildings Network View, May 2015

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

    Better Buildings Network View News From the Field May 2015 Nearly 50 Home Performance with ENERGY STAR ® Sponsors Join the Residential Network The U.S. Department of Energy's (DOE's) Home Performance with ENERGY STAR (HPwES) program announced this month that its 49 Sponsors will be considered members of the Better Buildings Residential Network and begin to receive Network membership benefits. The goal of Home Performance with ENERGY STAR is to help homeowners improve the efficiency and comfort

  13. BetterBuildings Network View, June 2014

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

    Better Buildings Network View | June 2014 More Than 60 Georgetown University Energy Prize Communities Join the Residential Network in Bulk The Better Buildings Residential Network announced an agreement with the Georgetown University Energy Prize (GUEP) competition to welcome all participating communities as members, which brings the total number to more than 130. More than 60 new members, representing cities and counties with populations between 5,000 and 250,000, will significantly expand the

  14. INTERSTELLAR NEUTRAL ATOMS AT 1 AU OBSERVED BY THE IMAGE/LENA IMAGER

    SciTech Connect (OSTI)

    Fuselier, S. A.; Ghielmetti, A. G.; Wurz, P. E-mail: gmetti@mail.spasci.com

    2009-06-20

    Observations from the Imager for Magnetopause to Aurora: Global Exploration (IMAGE) Low Energy Neutral Atom (LENA) imager from 2005 are used to investigate characteristics of interstellar neutrals in the inner solar system. The LENA imager detected an interstellar neutral signal starting in 2004 December and extending to early 2005 April. Using the orientation of the field of view of the imager and the date of the loss of the interstellar neutral signal, it is concluded that the signal is consistent with a relatively compact (several degrees wide in ecliptic latitude and longitude) source of neutral helium and/or energetic (>150 eV) hydrogen originating from the solar apex direction. Observations later in 2005 are used to distinguish the composition and conclude that the relatively compact source likely contains some energetic hydrogen (in addition to the helium)

  15. In-Situ Visualization Experiments with ParaView Cinema in RAGE

    SciTech Connect (OSTI)

    Kares, Robert John

    2015-10-15

    A previous paper described some numerical experiments performed using the ParaView/Catalyst in-situ visualization infrastructure deployed in the Los Alamos RAGE radiation-hydrodynamics code to produce images from a running large scale 3D ICF simulation. One challenge of the in-situ approach apparent in these experiments was the difficulty of choosing parameters likes isosurface values for the visualizations to be produced from the running simulation without the benefit of prior knowledge of the simulation results and the resultant cost of recomputing in-situ generated images when parameters are chosen suboptimally. A proposed method of addressing this difficulty is to simply render multiple images at runtime with a range of possible parameter values to produce a large database of images and to provide the user with a tool for managing the resulting database of imagery. Recently, ParaView/Catalyst has been extended to include such a capability via the so-called Cinema framework. Here I describe some initial experiments with the first delivery of Cinema and make some recommendations for future extensions of Cinema’s capabilities.

  16. High-resolution single photon planar and spect imaging of brain and neck employing a system of two co-registered opposed gamma imaging heads

    DOE Patents [OSTI]

    Majewski, Stanislaw; Proffitt, James

    2011-12-06

    A compact, mobile, dedicated SPECT brain imager that can be easily moved to the patient to provide in-situ imaging, especially when the patient cannot be moved to the Nuclear Medicine imaging center. As a result of the widespread availability of single photon labeled biomarkers, the SPECT brain imager can be used in many locations, including remote locations away from medical centers. The SPECT imager improves the detection of gamma emission from the patient's head and neck area with a large field of view. Two identical lightweight gamma imaging detector heads are mounted to a rotating gantry and precisely mechanically co-registered to each other at 180 degrees. A unique imaging algorithm combines the co-registered images from the detector heads and provides several SPECT tomographic reconstructions of the imaged object thereby improving the diagnostic quality especially in the case of imaging requiring higher spatial resolution and sensitivity at the same time.

  17. Upright cone beam CT imaging using the onboard imager

    SciTech Connect (OSTI)

    Fave, Xenia Martin, Rachael; Yang, Jinzhong; Balter, Peter; Court, Laurence; Carvalho, Luis; Pan, Tinsu

    2014-06-15

    Purpose: Many patients could benefit from being treated in an upright position. The objectives of this study were to determine whether cone beam computed tomography (CBCT) could be used to acquire upright images for treatment planning and to demonstrate whether reconstruction of upright images maintained accurate geometry and Hounsfield units (HUs). Methods: A TrueBeam linac was programmed in developer mode to take upright CBCT images. The gantry head was positioned at 0, and the couch was rotated to 270. The x-ray source and detector arms were extended to their lateral positions. The x-ray source and gantry remained stationary as fluoroscopic projections were taken and the couch was rotated from 270 to 90. The x-ray tube current was normalized to deposit the same dose (measured using a calibrated Farmer ion chamber) as that received during a clinical helical CT scan to the center of a cylindrical, polyethylene phantom. To extend the field of view, two couch rotation scans were taken with the detector offset 15 cm superiorly and then 15 cm inferiorly. The images from these two scans were stitched together before reconstruction. Upright reconstructions were compared to reconstructions from simulation CT scans of the same phantoms. Two methods were investigated for correcting the HUs, including direct calibration and mapping the values from a simulation CT. Results: Overall geometry, spatial linearity, and high contrast resolution were maintained in upright reconstructions. Some artifacts were created and HU accuracy was compromised; however, these limitations could be removed by mapping the HUs from a simulation CT to the upright reconstruction for treatment planning. Conclusions: The feasibility of using the TrueBeam linac to take upright CBCT images was demonstrated. This technique is straightforward to implement and could be of enormous benefit to patients with thoracic tumors or those who find a supine position difficult to endure.

  18. Better Buildings Network View, January 2015

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

    Better Buildings Network View | January 2015 News From the Field January 2015 2015 Starting as the Year of the Smart Home The Consumer Electronics Show is the global stage where next-generation innovations are introduced to the marketplace, and 2015 was heralded by many attendees as the year of the "Smart Home." Samsung, for example, started the new year by vowing this month at the 2015 Consumer Electronics Show to make 90% of its products Internet-enabled using platforms compatible

  19. ALS Technique Gives Novel View of Lithium Battery Dendrite Growth

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

    ALS Technique Gives Novel View of Lithium Battery Dendrite Growth ALS Technique Gives Novel View of Lithium Battery Dendrite Growth Print Thursday, 24 April 2014 09:46 Lithium-ion...

  20. Mountain View Power Partners I Wind Farm | Open Energy Information

    Open Energy Info (EERE)

    I Wind Farm Jump to: navigation, search Name Mountain View Power Partners I Wind Farm Facility Mountain View Power Partners I Sector Wind energy Facility Type Commercial Scale Wind...

  1. New Window Technology Saves Energy and the View | Department...

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

    New Window Technology Saves Energy and the View New Window Technology Saves Energy and the View November 5, 2013 - 3:55pm Addthis Researchers at the Energy Department's National...

  2. The View from the Bridge | Department of Energy

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

    The View from the Bridge The View from the Bridge Presentation given at DEER 2006, August 20-24, 2006, Detroit, Michigan. Sponsored by the U.S. DOE's EERE FreedomCar and Fuel...

  3. The Better Buildings Neighborhood View -- February 2012 | Department...

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

    View -- March 2012 The Better Buildings Neighborhood View -- January 2012 Microsoft Word - T4VEICTO2 Sub3Residential Retrofit Program Design Guide Play BookTEAM 4 FINAL.docx

  4. Better Buildings Network View | July-August 2015

    Broader source: Energy.gov [DOE]

    The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network.

  5. Better Buildings Network View | July-August 2014

    Broader source: Energy.gov [DOE]

    The Better Buildings Network View monthly newsletter from the U.S. Department of Energy's Better Buildings Residential Network.

  6. Split image optical display

    DOE Patents [OSTI]

    Veligdan, James T. (Manorville, NY)

    2007-05-29

    A video image is displayed from an optical panel by splitting the image into a plurality of image components, and then projecting the image components through corresponding portions of the panel to collectively form the image. Depth of the display is correspondingly reduced.

  7. Split image optical display

    DOE Patents [OSTI]

    Veligdan, James T.

    2005-05-31

    A video image is displayed from an optical panel by splitting the image into a plurality of image components, and then projecting the image components through corresponding portions of the panel to collectively form the image. Depth of the display is correspondingly reduced.

  8. Spectroscopic Needs for Imaging Dark Energy Experiments

    SciTech Connect (OSTI)

    Newman, Jeffrey A.; Slosar, Anze; Abate, Alexandra; Abdalla, Filipe B.; Allam, Sahar; Allen, Steven W.; Ansari, Reza; Bailey, Stephen; Barkhouse, Wayne A.; Beers, Timothy C.; Blanton, Michael R.; Brodwin, Mark; Brownstein, Joel R.; Brunner, Robert J.; Carrasco-Kind, Matias; Cervantes-Cota, Jorge; Chisari, Nora Elisa; Colless, Matthew; Comparat, Johan; Coupon, Jean; Cheu, Elliott; Cunha, Carlos E.; de la Macorra, Alex; DellAntonio, Ian P.; Frye, Brenda L.; Gawiser, Eric J.; Gehrels, Neil; Grady, Kevin; Hagen, Alex; Hall, Patrick B.; Hearin, Andrew P.; Hildebrandt, Hendrik; Hirata, Christopher M.; Ho, Shirley; Honscheid, Klaus; Huterer, Dragan; Ivezic, Zeljko; Kneib, Jean -Paul; Kruk, Jeffrey W.; Lahav, Ofer; Mandelbaum, Rachel; Marshall, Jennifer L.; Matthews, Daniel J.; Menard, Brice; Miquel, Ramon; Moniez, Marc; Moos, H. W.; Moustakas, John; Papovich, Casey; Peacock, John A.; Park, Changbom; Rhodes, Jason; Sadeh, Iftach; Schmidt, Samuel J.; Stern, Daniel K.; Tyson, J. Anthony; von der Linden, Anja; Wechsler, Risa H.; Wood-Vasey, W. M.; Zentner, A.

    2015-03-15

    Ongoing and near-future imaging-based dark energy experiments are critically dependent upon photometric redshifts (a.k.a. photo-zs): i.e., estimates of the redshifts of objects based only on flux information obtained through broad filters. Higher-quality, lower-scatter photo-zs will result in smaller random errors on cosmological parameters; while systematic errors in photometric redshift estimates, if not constrained, may dominate all other uncertainties from these experiments. The desired optimization and calibration is dependent upon spectroscopic measurements for secure redshift information; this is the key application of galaxy spectroscopy for imaging-based dark energy experiments. Hence, to achieve their full potential, imaging-based experiments will require large sets of objects with spectroscopically-determined redshifts, for two purposes: Training: Objects with known redshift are needed to map out the relationship between object color and z (or, equivalently, to determine empirically-calibrated templates describing the rest-frame spectra of the full range of galaxies, which may be used to predict the color-z relation). The ultimate goal of training is to minimize each moment of the distribution of differences between photometric redshift estimates and the true redshifts of objects, making the relationship between them as tight as possible. The larger and more complete our training set of spectroscopic redshifts is, the smaller the RMS photo-z errors should be, increasing the constraining power of imaging experiments; Requirements: Spectroscopic redshift measurements for ~30,000 objects over >~15 widely-separated regions, each at least ~20 arcmin in diameter, and reaching the faintest objects used in a given experiment, will likely be necessary if photometric redshifts are to be trained and calibrated with conventional techniques. Larger, more complete samples (i.e., with longer exposure times) can improve photo-z algorithms and reduce scatter further, enhancing the science return from planned experiments greatly (increasing the Dark Energy Task Force figure of merit by up to ~50%); Options: This spectroscopy will most efficiently be done by covering as much of the optical and near-infrared spectrum as possible at modestly high spectral resolution (?/?? > ~3000), while maximizing the telescope collecting area, field of view on the sky, and multiplexing of simultaneous spectra. The most efficient instrument for this would likely be either the proposed GMACS/MANIFEST spectrograph for the Giant Magellan Telescope or the OPTIMOS spectrograph for the European Extremely Large Telescope, depending on actual properties when built. The PFS spectrograph at Subaru would be next best and available considerably earlier, c. 2018; the proposed ngCFHT and SSST telescopes would have similar capabilities but start later. Other key options, in order of increasing total time required, are the WFOS spectrograph at TMT, MOONS at the VLT, and DESI at the Mayall 4 m telescope (or the similar 4MOST and WEAVE projects); of these, only DESI, MOONS, and PFS are expected to be available before 2020. Table 2-3 of this white paper summarizes the observation time required at each facility for strawman training samples. To attain secure redshift measurements for a high fraction of targeted objects and cover the full redshift span of future experiments, additional near-infrared spectroscopy will also be required; this is best done from space, particularly with WFIRST-2.4 and JWST; Calibration: The first several moments of redshift distributions (the mean, RMS redshift dispersion, etc.), must be known to high accuracy for cosmological constraints not to be systematics-dominated (equivalently, the moments of the distribution of differences between photometric and true redshifts could be determined instead). The ultimate goal of calibration is to characterize these moments for every subsample used in analyses - i.e., to minimize the uncertainty in their mean redshift, RMS dispersion, etc. rather than to make the moments themselves small. Calibration may be done with the same spectroscopic dataset used for training if that dataset is extremely high in redshift completeness (i.e., no populations of galaxies to be used in analyses are systematically missed). Accurate photo-z calibration is necessary for all imaging experiments; Requirements: If extremely low levels of systematic incompleteness (<~0.1%) are attained in training samples, the same datasets described above should be sufficient for calibration. However, existing deep spectroscopic surveys have failed to yield secure redshifts for 3060% of targets, so that would require very large improvements over past experience. This incompleteness would be a limiting factor for training, but catastrophic for calibration. If <~0.1% incompleteness is not attainable, the best known option for calibration of photometric redshifts is to utilize cross-correlation statistics in some form. The most direct method for this uses cross-correlations between positions on the sky of bright objects of known spectroscopic redshift with the sample of objects that we wish to calibrate the redshift distribution for, measured as a function of spectroscopic z. For such a calibration, redshifts of ~100,000 objects over at least several hundred square degrees, spanning the full redshift range of the samples used for dark energy, would be necessary; and Options: The proposed BAO experiment eBOSS would provide sufficient spectroscopy for basic calibrations, particularly for ongoing and near-future imaging experiments. The planned DESI experiment would provide excellent calibration with redundant cross-checks, but will start after the conclusion of some imaging projects. An extension of DESI to the Southern hemisphere would provide the best possible calibration from cross-correlation methods for DES and LSST. We thus anticipate that our two primary needs for spectroscopy training and calibration of photometric redshifts will require two separate solutions. For ongoing and future projects to reach their full potential, new spectroscopic samples of faint objects will be needed for training; those new samples may be suitable for calibration, but the latter possibility is uncertain. In contrast, wide-area samples of bright objects are poorly suited for training, but can provide high-precision calibrations via cross-correlation techniques. Additional training/calibration redshifts and/or host galaxy spectroscopy would enhance the use of supernovae and galaxy clusters for cosmology. We also summarize additional work on photometric redshift techniques that will be needed to prepare for data from ongoing and future dark energy experiments.

  9. Characterization of a constrained paired-view technique in iterative reconstruction for breast tomosynthesis

    SciTech Connect (OSTI)

    Wu, Gang; Yaffe, Martin J.; Mainprize, James G.

    2013-10-15

    Purpose: The order in which the projection views are employed in the reconstruction of tomosynthesis by iterative algorithms, such as simultaneous algebraic reconstruction technique and maximum likelihood, has a strong effect on the rate of convergence, accuracy, and the edge-blurring artifacts in the reconstructed image. The purpose of this investigation was to characterize and evaluate the effects of ordering schemes on image quality for breast tomosynthesis reconstruction and to explore a new constrained paired-view technique that could provide reduction of reconstruction artifacts. In this work, the authors compared several different ordering schemes and characterized the image quality and the formation of out-of-plane artifacts. Furthermore, a new normalization method is presented. It produces more accurate reconstructions with reduced artifacts comparing to the standard method of sequential ordering.Methods: In addition to visual assessment of image quality, several indices such as the signal-difference-to-noise ratio, the artifact-spread function, and the lesion detectability (d{sup ?}) were computed to quantitatively evaluate the effect of ordering scheme. The sets of breast tomosynthesis projection images were simulated for reconstruction; one set had uniform background (white noise only) and the other two contained both anatomic background and quantum noise. Clinical breast images were also studied for comparison.Results: The authors have quantified the image quality in reconstructed slices for a range of tumor sizes. The authors proposed method provides better performance for all of the metrics tested (contrast, d{sup ?}, and the level of artifacts) both for the uniform phantom case and in the presence of anatomical structure.Conclusions: The paired projection normalization provides better performance in the image quality of the reconstructed slices, and results in a lower level of artifacts in the Z direction. This implies that even a relatively simple method like the side-to-side sequence, which pairs two symmetrical projections with equal angular distance from the central projection, would achieve better reconstructed image quality than the conventional step-by-step method, which uses sequential projections one after another.

  10. Evaluation of a CdTe semiconductor based compact gamma camera for sentinel lymph node imaging

    SciTech Connect (OSTI)

    Russo, Paolo; Curion, Assunta S.; Mettivier, Giovanni; Esposito, Michela; Aurilio, Michela; Caraco, Corradina; Aloj, Luigi; Lastoria, Secondo

    2011-03-15

    Purpose: The authors assembled a prototype compact gamma-ray imaging probe (MediPROBE) for sentinel lymph node (SLN) localization. This probe is based on a semiconductor pixel detector. Its basic performance was assessed in the laboratory and clinically in comparison with a conventional gamma camera. Methods: The room-temperature CdTe pixel detector (1 mm thick) has 256x256 square pixels arranged with a 55 {mu}m pitch (sensitive area 14.08x14.08 mm{sup 2}), coupled pixel-by-pixel via bump-bonding to the Medipix2 photon-counting readout CMOS integrated circuit. The imaging probe is equipped with a set of three interchangeable knife-edge pinhole collimators (0.94, 1.2, or 2.1 mm effective diameter at 140 keV) and its focal distance can be regulated in order to set a given field of view (FOV). A typical FOV of 70 mm at 50 mm skin-to-collimator distance corresponds to a minification factor 1:5. The detector is operated at a single low-energy threshold of about 20 keV. Results: For {sup 99m}Tc, at 50 mm distance, a background-subtracted sensitivity of 6.5x10{sup -3} cps/kBq and a system spatial resolution of 5.5 mm FWHM were obtained for the 0.94 mm pinhole; corresponding values for the 2.1 mm pinhole were 3.3x10{sup -2} cps/kBq and 12.6 mm. The dark count rate was 0.71 cps. Clinical images in three patients with melanoma indicate detection of the SLNs with acquisition times between 60 and 410 s with an injected activity of 26 MBq {sup 99m}Tc and prior localization with standard gamma camera lymphoscintigraphy. Conclusions: The laboratory performance of this imaging probe is limited by the pinhole collimator performance and the necessity of working in minification due to the limited detector size. However, in clinical operative conditions, the CdTe imaging probe was effective in detecting SLNs with adequate resolution and an acceptable sensitivity. Sensitivity is expected to improve with the future availability of a larger CdTe detector permitting operation at shorter distances from the patient skin.

  11. Sandia Energy - Advanced Imaging

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

    Advanced Imaging Home Transportation Energy Predictive Simulation of Engines Reacting Flow Experiments Advanced Imaging Advanced ImagingAshley Otero2015-10-30T01:47:37+00:00...

  12. Wide-angle ITER-prototype tangential infrared and visible viewing system for DIII-D

    SciTech Connect (OSTI)

    Lasnier, C. J. Allen, S. L.; Ellis, R. E.; Fenstermacher, M. E.; McLean, A. G.; Meyer, W. H.; Morris, K.; Seppala, L. G.; Crabtree, K.; Van Zeeland, M. A.

    2014-11-15

    An imaging system with a wide-angle tangential view of the full poloidal cross-section of the tokamak in simultaneous infrared and visible light has been installed on DIII-D. The optical train includes three polished stainless steel mirrors in vacuum, which view the tokamak through an aperture in the first mirror, similar to the design concept proposed for ITER. A dichroic beam splitter outside the vacuum separates visible and infrared (IR) light. Spatial calibration is accomplished by warping a CAD-rendered image to align with landmarks in a data image. The IR camera provides scrape-off layer heat flux profile deposition features in diverted and inner-wall-limited plasmas, such as heat flux reduction in pumped radiative divertor shots. Demonstration of the system to date includes observation of fast-ion losses to the outer wall during neutral beam injection, and shows reduced peak wall heat loading with disruption mitigation by injection of a massive gas puff.

  13. Nuclear Imaging | Jefferson Lab

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

    Research Jefferson Lab's Radiation Detector and Imaging Group Members of Jefferson Lab's Radiation Detector & Medical Imaging Group design and build unique imaging devices based on the lab's nuclear physics expertise. A D D I T I O N A L L I N K S: Detector & Imaging News Staff Clinical Imaging Pre-clinical Imaging Plant Biology Imaging top-right bottom-left-corner bottom-right-corner Radiation Detector & Imaging Group At Jefferson Lab, scientists, engineers and technicians in the

  14. Forensic imaging tools for law enforcement

    SciTech Connect (OSTI)

    SMITHPETER,COLIN L.; SANDISON,DAVID R.; VARGO,TIMOTHY D.

    2000-01-01

    Conventional methods of gathering forensic evidence at crime scenes are encumbered by difficulties that limit local law enforcement efforts to apprehend offenders and bring them to justice. Working with a local law-enforcement agency, Sandia National Laboratories has developed a prototype multispectral imaging system that can speed up the investigative search task and provide additional and more accurate evidence. The system, called the Criminalistics Light-imaging Unit (CLU), has demonstrated the capabilities of locating fluorescing evidence at crime scenes under normal lighting conditions and of imaging other types of evidence, such as untreated fingerprints, by direct white-light reflectance. CLU employs state of the art technology that provides for viewing and recording of the entire search process on videotape. This report describes the work performed by Sandia to design, build, evaluate, and commercialize CLU.

  15. Scannerless laser range imaging using loss modulation

    DOE Patents [OSTI]

    Sandusky, John V. (Albuquerque, NM)

    2011-08-09

    A scannerless 3-D imaging apparatus is disclosed which utilizes an amplitude modulated cw light source to illuminate a field of view containing a target of interest. Backscattered light from the target is passed through one or more loss modulators which are modulated at the same frequency as the light source, but with a phase delay .delta. which can be fixed or variable. The backscattered light is demodulated by the loss modulator and detected with a CCD, CMOS or focal plane array (FPA) detector to construct a 3-D image of the target. The scannerless 3-D imaging apparatus, which can operate in the eye-safe wavelength region 1.4-1.7 .mu.m and which can be constructed as a flash LADAR, has applications for vehicle collision avoidance, autonomous rendezvous and docking, robotic vision, industrial inspection and measurement, 3-D cameras, and facial recognition.

  16. Target Fabrication: A View from the Users

    SciTech Connect (OSTI)

    Kyrala, George A.; Balkey, Matthew M.; Barnes, Cris W.; Batha, Steven H.; Christensen, Cindy R.; Cobble, James A.; Fincke, James; Keiter, Paul; Lanier, Nicholas; Paisley, Dennis; Sorem, Michael; Swift, Damian; Workman, Jonathan

    2004-03-15

    Targets are used for a variety of purposes, but ultimately we use them to validate codes that help us predict and understand new phenomena or effects. The sophistication and complexity of High Energy Density Physics (HEDP) and Inertial Confinement Fusion (ICF) targets has increased in to match the advances made in modeling complex phenomena. The targets have changed from simple hohlraums, spherical geometries, and planar foils, to 3-dimensional geometries that require precision in construction, alignment, and metrology. Furthermore, material properties, such as surface morphologies and volume texture, have significant impact on the behavior of the targets and must be measured and controlled. In the following we will discuss how experimental physicists view targets and the influence that target construction has on interpreting the experimental results. We review a representative sampling of targets fabricated at the Los Alamos National Laboratory that are used in different experiments in support of ICF and HEDP.

  17. TARGET FABRICATION: A VIEW FROM THE USERS.

    SciTech Connect (OSTI)

    Kyrala, George A.; Balkey, Matthew M.; Batha, Steven H.; Barnes, Cris W.; Christensen, Cindy; Cobble, James; Fincke, James; Keiter, Paul; Lanier, Nicholas; Paisley, Dennis; Sorem, Michael S.; Swift, Damian; Workman, Jonathan

    2003-07-18

    Targets are used for a variety of purposes, but ultimately we use them to validate codes that help us predict and understand new phenomena or effects. The sophistication and complexity of High Energy Density Physics (HEDP) and Inertial Confinement Fusion (ICF) targets has increased in time to match the advances made in modeling complex phenomena. The targets have changed from simple hohlraums, spherical geometries, and planar foils, to 3-dimensional geometries that require precision in construction, alignment, and metrology. Furthermore, material properties, such as surface morphologies and volume texture, have significant impact on the behavior of the targets and must be measured and controlled. In the following we will discuss how experimental physicists view targets and the influence that target construction has on interpreting the experimental results. We review a representative sampling of targets fabricated at the Los Alamos National Laboratory that are used in different experiments in support of ICF and HEDP.

  18. Faraday imaging at high temperatures

    DOE Patents [OSTI]

    Hackel, Lloyd A. (Livermore, CA); Reichert, Patrick (Hayward, CA)

    1997-01-01

    A Faraday filter rejects background light from self-luminous thermal objects, but transmits laser light at the passband wavelength, thus providing an ultra-narrow optical bandpass filter. The filter preserves images so a camera looking through a Faraday filter at a hot target illuminated by a laser will not see the thermal radiation but will see the laser radiation. Faraday filters are useful for monitoring or inspecting the uranium separator chamber in an atomic vapor laser isotope separation process. Other uses include viewing welds, furnaces, plasma jets, combustion chambers, and other high temperature objects. These filters are can be produced at many discrete wavelengths. A Faraday filter consists of a pair of crossed polarizers on either side of a heated vapor cell mounted inside a solenoid.

  19. Faraday imaging at high temperatures

    DOE Patents [OSTI]

    Hackel, L.A.; Reichert, P.

    1997-03-18

    A Faraday filter rejects background light from self-luminous thermal objects, but transmits laser light at the passband wavelength, thus providing an ultra-narrow optical bandpass filter. The filter preserves images so a camera looking through a Faraday filter at a hot target illuminated by a laser will not see the thermal radiation but will see the laser radiation. Faraday filters are useful for monitoring or inspecting the uranium separator chamber in an atomic vapor laser isotope separation process. Other uses include viewing welds, furnaces, plasma jets, combustion chambers, and other high temperature objects. These filters are can be produced at many discrete wavelengths. A Faraday filter consists of a pair of crossed polarizers on either side of a heated vapor cell mounted inside a solenoid. 3 figs.

  20. DOE Tour of Zero Floorplans: Marine Drive by Clifton View Homes...

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

    Marine Drive by Clifton View Homes DOE Tour of Zero Floorplans: Marine Drive by Clifton View Homes DOE Tour of Zero Floorplans: Marine Drive by Clifton View...

  1. DOE Tour of Zero Floorplans: Port Hadlock by Clifton View Homes...

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

    Port Hadlock by Clifton View Homes DOE Tour of Zero Floorplans: Port Hadlock by Clifton View Homes DOE Tour of Zero Floorplans: Port Hadlock by Clifton View Homes...

  2. Seismic Imaging and Monitoring

    SciTech Connect (OSTI)

    Huang, Lianjie

    2012-07-09

    I give an overview of LANL's capability in seismic imaging and monitoring. I present some seismic imaging and monitoring results, including imaging of complex structures, subsalt imaging of Gulf of Mexico, fault/fracture zone imaging for geothermal exploration at the Jemez pueblo, time-lapse imaging of a walkway vertical seismic profiling data for monitoring CO{sub 2} inject at SACROC, and microseismic event locations for monitoring CO{sub 2} injection at Aneth. These examples demonstrate LANL's high-resolution and high-fidelity seismic imaging and monitoring capabilities.

  3. Image registration method for medical image sequences

    DOE Patents [OSTI]

    Gee, Timothy F.; Goddard, James S.

    2013-03-26

    Image registration of low contrast image sequences is provided. In one aspect, a desired region of an image is automatically segmented and only the desired region is registered. Active contours and adaptive thresholding of intensity or edge information may be used to segment the desired regions. A transform function is defined to register the segmented region, and sub-pixel information may be determined using one or more interpolation methods.

  4. Dedicated mobile high resolution prostate PET imager with an insertable transrectal probe

    DOE Patents [OSTI]

    Majewski, Stanislaw (Yorktown, VA); Proffitt, James (Newport News, VA)

    2010-12-28

    A dedicated mobile PET imaging system to image the prostate and surrounding organs. The imaging system includes an outside high resolution PET imager placed close to the patient's torso and an insertable and compact transrectal probe that is placed in close proximity to the prostate and operates in conjunction with the outside imager. The two detector systems are spatially co-registered to each other. The outside imager is mounted on an open rotating gantry to provide torso-wide 3D images of the prostate and surrounding tissue and organs. The insertable probe provides closer imaging, high sensitivity, and very high resolution predominately 2D view of the prostate and immediate surroundings. The probe is operated in conjunction with the outside imager and a fast data acquisition system to provide very high resolution reconstruction of the prostate and surrounding tissue and organs.

  5. Improved information analysis - views and actions

    SciTech Connect (OSTI)

    Sheely, K.B.; Manatt, D.R.

    1995-07-01

    The IAEA continues to assess, develop, and test recommendations for strengthening the cost effectiveness of safeguards. The IAEA`s investigation has focused on ways to increase Agency access to data, including access to sites and site data, export/import data, environmental data, open-source data, and other expanded data sources. Although the acquisition of this raw data is essential to strengthening safeguards, the effectiveness of the system is going to be judged by what the Agency does with the data once they have acquired it. Therefore, the IAEA must have the capability to organize, analyze and present the data in a timely manner for internal management evaluation and external dissemination. The United States Department of Energy has established a Safeguards Information Management Systems (SIMS) Initiative to provide support and equipment which will improve the IAEA`s capability to utilize this expanded data to analyze State`s nuclear activities. This paper will present views on steps to improve information analysis and discuss the status of actions undertaken by the SIMS initiative.

  6. BetterBuildings Network View | January 9, 2014

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

    Better Buildings Network View | January 9, 2014 Welcome to the First Issue Stop to Take in the (Network) View Welcome to the first issue of the Better Buildings Residential Network newsletter, the Better Buildings Network View . The Residential Network connects energy efficiency programs and partners to share best practices and learn from one another to dramatically increase the number of homes that are energy efficient. It also expands on the legacy of the $500 million Better Buildings

  7. January 2013 Most Viewed Documents for Biology And Medicine ...

    Office of Scientific and Technical Information (OSTI)

    January 2013 Most Viewed Documents for Biology And Medicine Nevada Test Site Radiological Control Manual Radiological Control Managers' Council Nevada Test Site Effects of ionizing ...

  8. Mountain View Acres, California: Energy Resources | Open Energy...

    Open Energy Info (EERE)

    Mountain View Acres, California: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 34.496663, -117.3489352 Show Map Loading map......

  9. Mountain View, California: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Mountain View, California: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 37.3860517, -122.0838511 Show Map Loading map......

  10. Mountain View, Colorado: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Mountain View, Colorado: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 39.7744311, -105.0555389 Show Map Loading map... "minzoom":false,"mapp...

  11. Forest View, Illinois: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Forest View, Illinois: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 41.8086431, -87.7933895 Show Map Loading map... "minzoom":false,"mapping...

  12. Helix Wind Inc formerly ClearView Acquisitions | Open Energy...

    Open Energy Info (EERE)

    (formerly ClearView Acquisitions) Place: San Diego, California Zip: 92113 Sector: Wind energy Product: California-based manufacturer of small scale wind turbines. References: Helix...

  13. BrightView Systems Ltd | Open Energy Information

    Open Energy Info (EERE)

    Ltd Jump to: navigation, search Name: BrightView Systems Ltd Place: Petach-Tikva, Israel Zip: 49510 Product: Has developed an unspecified technology for PV cell manufacture....

  14. January 2013 Most Viewed Documents for Mathematics And Computing...

    Office of Scientific and Technical Information (OSTI)

    January 2013 Most Viewed Documents for Mathematics And Computing Cybersecurity through Real-Time Distributed Control Systems Kisner, Roger A ORNL; Manges, Wayne W ORNL; ...

  15. Tools for Viewing and Quality Checking ARM Data

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

    Tools for Viewing and Quality Checking ARM Data S. Bottone and S. Moore Mission Research Corporation Santa Barbara, California Introduction Mission Research Corporation (MRC) is...

  16. MediaWiki:Pagetitle-view-mainpage | Open Energy Information

    Open Energy Info (EERE)

    Jump to: navigation, search Energy Information and Data | OpenEI.org Retrieved from "http:en.openei.orgwindex.php?titleMediaWiki:Pagetitle-view-mainpage&oldid277068...

  17. March 2014 Most Viewed Documents for Materials | OSTI, US Dept...

    Office of Scientific and Technical Information (OSTI)

    4 Most Viewed Documents for Materials Science Subject Feed Damage identification and ... Net Shaping (LENS(TM)): A Tool for Direct Fabrication of Metal Parts Atwood, C.; ...

  18. The Better Buildings Neighborhood View -- December 2013 | Department...

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

    The Better Buildings Neighborhood View -- July 2013 Focus Series: Philadelphia Energyworks: In the City of Brotherly Love, Sharing Know-How Leads to Sustainability The Better ...

  19. The Better Buildings Neighborhood View - September 2012 | Department...

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

    September 2012 The Better Buildings Neighborhood View - September 2012 Monthly newsletter from the U.S. Department of Energy's Better Buildings Neighborhood Program. PDF icon BB...

  20. March 2014 Most Viewed Documents for National Defense | OSTI...

    Office of Scientific and Technical Information (OSTI)

    4 Most Viewed Documents for National Defense Science Subject Feed The Effects of Nuclear Weapons Glasstone, Samuel (1964) 72 > SMART BRIDGE: A tool for estimating the military ...

  1. Image segmentation by hierarchial agglomeration of polygons using ecological statistics

    DOE Patents [OSTI]

    Prasad, Lakshman; Swaminarayan, Sriram

    2013-04-23

    A method for rapid hierarchical image segmentation based on perceptually driven contour completion and scene statistics is disclosed. The method begins with an initial fine-scale segmentation of an image, such as obtained by perceptual completion of partial contours into polygonal regions using region-contour correspondences established by Delaunay triangulation of edge pixels as implemented in VISTA. The resulting polygons are analyzed with respect to their size and color/intensity distributions and the structural properties of their boundaries. Statistical estimates of granularity of size, similarity of color, texture, and saliency of intervening boundaries are computed and formulated into logical (Boolean) predicates. The combined satisfiability of these Boolean predicates by a pair of adjacent polygons at a given segmentation level qualifies them for merging into a larger polygon representing a coarser, larger-scale feature of the pixel image and collectively obtains the next level of polygonal segments in a hierarchy of fine-to-coarse segmentations. The iterative application of this process precipitates textured regions as polygons with highly convolved boundaries and helps distinguish them from objects which typically have more regular boundaries. The method yields a multiscale decomposition of an image into constituent features that enjoy a hierarchical relationship with features at finer and coarser scales. This provides a traversable graph structure from which feature content and context in terms of other features can be derived, aiding in automated image understanding tasks. The method disclosed is highly efficient and can be used to decompose and analyze large images.

  2. Yakama Nation Housing Authority, Adams View: System Retrofit Research Report and Case Study Summary; 23 February 2004--15 January 2005

    SciTech Connect (OSTI)

    CARB

    2005-11-01

    The Yakama Nation is the largest tribe in the Pacific Northwest. The Yakama Nation Housing Authority (YNHA) is working to rehabilitate single family homes (two to four bedrooms) in its Adams View project using public and tax credit financing. It is in need of a major rehabilitation as a result of wear and tear after many years of use and overcrowding. The scope for the current CARB ''gut rehab'' project is 25 of the 40 homes in the Adams View development, but the proposed strategies could be replicated for the remaining 15 homes as well as for several other similar developments of the YNHA. On a larger scale, the system rehabilitation strategy developed for the Adam's View project should be replicable for most of the more than 4,300 housing units that were constructed in the Northwest (Washington, Oregon, and Idaho) under the US Department of Housing and Urban Development (HUD) Housing Act of 1937.

  3. Optical fiber head for providing lateral viewing

    DOE Patents [OSTI]

    Everett, Matthew J. (Livermore, CA); Colston, Billy W. (Livermore, CA); James, Dale L. (Tracy, CA); Brown, Steve (Livermore, CA); Da Silva, Luiz (Danville, CA)

    2002-01-01

    The head of an optical fiber comprising the sensing probe of an optical heterodyne sensing device includes a planar surface that intersects the perpendicular to axial centerline of the fiber at a polishing angle .theta.. The planar surface is coated with a reflective material so that light traveling axially through the fiber is reflected transverse to the fiber's axial centerline, and is emitted laterally through the side of the fiber. Alternatively, the planar surface can be left uncoated. The polishing angle .theta. must be no greater than 39.degree. or must be at least 51.degree.. The emitted light is reflected from adjacent biological tissue, collected by the head, and then processed to provide real-time images of the tissue. The method for forming the planar surface includes shearing the end of the optical fiber and applying the reflective material before removing the buffer that circumscribes the cladding and the core.

  4. Holographic imaging of natural-fiber-containing materials

    DOE Patents [OSTI]

    Bunch, Kyle J [Richland, WA; Tucker, Brian J [Pasco, WA; Severtsen, Ronald H [Richland, WA; Hall, Thomas E [Kennewick, WA; McMakin, Douglas L [Richland, WA; Lechelt, Wayne M [West Richland, WA; Griffin, Jeffrey W [Kennewick, WA; Sheen, David M [Richland, WA

    2010-12-21

    The present invention includes methods and apparatuses for imaging material properties in natural-fiber-containing materials. In particular, the images can provide quantified measures of localized moisture content. Embodiments of the invention utilize an array of antennas and at least one transceiver to collect amplitude and phase data from radiation interacting with the natural-fiber-containing materials. The antennas and the transceivers are configured to transmit and receive electromagnetic radiation at one or more frequencies, which are between 50 MHz and 1 THz. A conveyance system passes the natural-fiber-containing materials through a field of view of the array of antennas. A computing device is configured to apply a synthetic imaging algorithm to construct a three-dimensional image of the natural-fiber-containing materials that provides a quantified measure of localized moisture content. The image and the quantified measure are both based on the amplitude data, the phase data, or both.

  5. View discovery in OLAP databases through statistical combinatorial optimization

    SciTech Connect (OSTI)

    Hengartner, Nick W; Burke, John; Critchlow, Terence; Joslyn, Cliff; Hogan, Emilie

    2009-01-01

    OnLine Analytical Processing (OLAP) is a relational database technology providing users with rapid access to summary, aggregated views of a single large database, and is widely recognized for knowledge representation and discovery in high-dimensional relational databases. OLAP technologies provide intuitive and graphical access to the massively complex set of possible summary views available in large relational (SQL) structured data repositories. The capability of OLAP database software systems to handle data complexity comes at a high price for analysts, presenting them a combinatorially vast space of views of a relational database. We respond to the need to deploy technologies sufficient to allow users to guide themselves to areas of local structure by casting the space of 'views' of an OLAP database as a combinatorial object of all projections and subsets, and 'view discovery' as an search process over that lattice. We equip the view lattice with statistical information theoretical measures sufficient to support a combinatorial optimization process. We outline 'hop-chaining' as a particular view discovery algorithm over this object, wherein users are guided across a permutation of the dimensions by searching for successive two-dimensional views, pushing seen dimensions into an increasingly large background filter in a 'spiraling' search process. We illustrate this work in the context of data cubes recording summary statistics for radiation portal monitors at US ports.

  6. Imaging indicator for ESD safety testing.

    SciTech Connect (OSTI)

    Whinnery, LeRoy L.,; Nissen, April; Keifer, Patrick N.; Tyson, Alexander

    2013-05-01

    This report describes the development of a new detection method for electrostatic discharge (ESD) testing of explosives, using a single-lens reflex (SLR) digital camera and a 200-mm macro lens. This method has demonstrated several distinct advantages to other current ESD detection methods, including the creation of a permanent record, an enlarged image for real-time viewing as well as extended periods of review, and ability to combine with most other Go/No-Go sensors. This report includes details of the method, including camera settings and position, and results with wellcharacterized explosives PETN and RDX, and two ESD-sensitive aluminum powders.

  7. Spectrographic imaging system

    DOE Patents [OSTI]

    Morris, Michael D. (Ann Arbor, MI); Treado, Patrick J. (Ann Arbor, MI)

    1991-01-01

    An imaging system for providing spectrographically resolved images. The system incorporates a one-dimensional spatial encoding mask which enables an image to be projected onto a two-dimensional image detector after spectral dispersion of the image. The dimension of the image which is lost due to spectral dispersion on the two-dimensional detector is recovered through employing a reverse transform based on presenting a multiplicity of different spatial encoding patterns to the image. The system is especially adapted for detecting Raman scattering of monochromatic light transmitted through or reflected from physical samples. Preferably, spatial encoding is achieved through the use of Hadamard mask which selectively transmits or blocks portions of the image from the sample being evaluated.

  8. Video image position determination

    DOE Patents [OSTI]

    Christensen, Wynn (Los Alamos, NM); Anderson, Forrest L. (Bernalillo, NM); Kortegaard, Birchard L. (Los Alamos, NM)

    1991-01-01

    An optical beam position controller in which a video camera captures an image of the beam in its video frames, and conveys those images to a processing board which calculates the centroid coordinates for the image. The image coordinates are used by motor controllers and stepper motors to position the beam in a predetermined alignment. In one embodiment, system noise, used in conjunction with Bernoulli trials, yields higher resolution centroid coordinates.

  9. Medical imaging systems

    DOE Patents [OSTI]

    Frangioni, John V

    2013-06-25

    A medical imaging system provides simultaneous rendering of visible light and diagnostic or functional images. The system may be portable, and may include adapters for connecting various light sources and cameras in open surgical environments or laparascopic or endoscopic environments. A user interface provides control over the functionality of the integrated imaging system. In one embodiment, the system provides a tool for surgical pathology.

  10. Near-electrode imager

    DOE Patents [OSTI]

    Rathke, Jerome W. (Lockport, IL); Klingler, Robert J. (Westmont, IL); Woelk, Klaus (Wachtberg, DE); Gerald, II, Rex E. (Brookfield, IL)

    2000-01-01

    An apparatus, near-electrode imager, for employing nuclear magnetic resonance imaging to provide in situ measurements of electrochemical properties of a sample as a function of distance from a working electrode. The near-electrode imager uses the radio frequency field gradient within a cylindrical toroid cavity resonator to provide high-resolution nuclear magnetic resonance spectral information on electrolyte materials.

  11. Deep Sky Astronomical Image Database

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

    Deep Sky Astronomical Image Database Deep Sky Astronomical Image Database Key Challenges: Develop, store, analyze, and make available an astronomical image database of...

  12. Ultra high frequency imaging acoustic microscope

    DOE Patents [OSTI]

    Deason, Vance A.; Telschow, Kenneth L.

    2006-05-23

    An imaging system includes: an object wavefront source and an optical microscope objective all positioned to direct an object wavefront onto an area of a vibrating subject surface encompassed by a field of view of the microscope objective, and to direct a modulated object wavefront reflected from the encompassed surface area through a photorefractive material; and a reference wavefront source and at least one phase modulator all positioned to direct a reference wavefront through the phase modulator and to direct a modulated reference wavefront from the phase modulator through the photorefractive material to interfere with the modulated object wavefront. The photorefractive material has a composition and a position such that interference of the modulated object wavefront and modulated reference wavefront occurs within the photorefractive material, providing a full-field, real-time image signal of the encompassed surface area.

  13. Fourier plane imaging microscopy

    SciTech Connect (OSTI)

    Dominguez, Daniel, E-mail: daniel.dominguez@ttu.edu; Peralta, Luis Grave de [Department of Physics, Texas Tech University, Lubbock, Texas 79409 (United States); Nano Tech Center, Texas Tech University, Lubbock, Texas 79409 (United States); Alharbi, Nouf; Alhusain, Mdhaoui [Department of Physics, Texas Tech University, Lubbock, Texas 79409 (United States); Bernussi, Ayrton A. [Nano Tech Center, Texas Tech University, Lubbock, Texas 79409 (United States); Department of Electrical and Computer Engineering, Texas Tech University, Lubbock, Texas 79409 (United States)

    2014-09-14

    We show how the image of an unresolved photonic crystal can be reconstructed using a single Fourier plane (FP) image obtained with a second camera that was added to a traditional compound microscope. We discuss how Fourier plane imaging microscopy is an application of a remarkable property of the obtained FP images: they contain more information about the photonic crystals than the images recorded by the camera commonly placed at the real plane of the microscope. We argue that the experimental results support the hypothesis that surface waves, contributing to enhanced resolution abilities, were optically excited in the studied photonic crystals.

  14. JCESR introduces high school students to the future of battery science |

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

    Argonne National Laboratory Students generate enough power to run hairdryers and turn on lightbulbs by riding a bike that generates electricity. (Click image to view larger.) Students generate enough power to run hairdryers and turn on lightbulbs by riding a bike that generates electricity. (Click image to view larger.) Argonne scientist Lou Harnisch works with a student on a wind turbine building activity. (Click image to view larger.) Argonne scientist Lou Harnisch works with a student on

  15. DOE - NNSA/NFO -- Photo Library News & Views

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

    News & Views NNSA/NFO Language Options U.S. DOE/NNSA - Nevada Field Office Photo Library - NTS 50th Anniversary Newsletter (News & Views) This special issue of the NTS News & Views is dedicated to the thousands of men and women at the Nevada National Security Site (NNSS), who for 42 years have provided this Nation with a safe, strong and effective nuclear deterrent. This issue spotlights major events at the NTS from 1951 through 1993. Instructions: Click the photograph THUMBNAIL to

  16. Image compression technique

    DOE Patents [OSTI]

    Fu, C.Y.; Petrich, L.I.

    1997-03-25

    An image is compressed by identifying edge pixels of the image; creating a filled edge array of pixels each of the pixels in the filled edge array which corresponds to an edge pixel having a value equal to the value of a pixel of the image array selected in response to the edge pixel, and each of the pixels in the filled edge array which does not correspond to an edge pixel having a value which is a weighted average of the values of surrounding pixels in the filled edge array which do correspond to edge pixels; and subtracting the filled edge array from the image array to create a difference array. The edge file and the difference array are then separately compressed and transmitted or stored. The original image is later reconstructed by creating a preliminary array in response to the received edge file, and adding the preliminary array to the received difference array. Filling is accomplished by solving Laplace`s equation using a multi-grid technique. Contour and difference file coding techniques also are described. The techniques can be used in a method for processing a plurality of images by selecting a respective compression approach for each image, compressing each of the images according to the compression approach selected, and transmitting each of the images as compressed, in correspondence with an indication of the approach selected for the image. 16 figs.

  17. Image compression technique

    DOE Patents [OSTI]

    Fu, Chi-Yung (San Francisco, CA); Petrich, Loren I. (Livermore, CA)

    1997-01-01

    An image is compressed by identifying edge pixels of the image; creating a filled edge array of pixels each of the pixels in the filled edge array which corresponds to an edge pixel having a value equal to the value of a pixel of the image array selected in response to the edge pixel, and each of the pixels in the filled edge array which does not correspond to an edge pixel having a value which is a weighted average of the values of surrounding pixels in the filled edge array which do correspond to edge pixels; and subtracting the filled edge array from the image array to create a difference array. The edge file and the difference array are then separately compressed and transmitted or stored. The original image is later reconstructed by creating a preliminary array in response to the received edge file, and adding the preliminary array to the received difference array. Filling is accomplished by solving Laplace's equation using a multi-grid technique. Contour and difference file coding techniques also are described. The techniques can be used in a method for processing a plurality of images by selecting a respective compression approach for each image, compressing each of the images according to the compression approach selected, and transmitting each of the images as compressed, in correspondence with an indication of the approach selected for the image.

  18. Argonne model analyzes water footprint of biofuels | Argonne...

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

    tool predicts the amount of water required to generate various types of cellulosic biofuels. Image courtesy May Wu; click to view larger. An Argonne-developed online analysis...

  19. How can I view submitted materials? | OpenEI Community

    Open Energy Info (EERE)

    Groups Menu You must login in order to post into this group. Recent content Travis Brown and Kamran Baksh, Final Submission For various reasons, you may w... How can I view...

  20. Chevy Chase View, Maryland: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    is a stub. You can help OpenEI by expanding it. Chevy Chase View is a town in Montgomery County, Maryland. It falls under Maryland's 8th congressional district.12...

  1. PPPL's "Star Power" video offers compelling view of Laboratory...

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

    PPPL's "Star Power" video offers compelling view of Laboratory's research By Jeanne Jackson DeVoe September 4, 2013 Tweet Widget Google Plus One Share on Facebook PPPL has released...

  2. April 2013 Most Viewed Documents for National Defense | OSTI...

    Office of Scientific and Technical Information (OSTI)

    April 2013 Most Viewed Documents for National Defense Science Subject Feed Vapor-liquid equilibria for nitric acid-water and plutonium nitrate-nitric acid-water solutions Maimoni, ...

  3. West Pleasant View, Colorado: Energy Resources | Open Energy...

    Open Energy Info (EERE)

    Hide Map This article is a stub. You can help OpenEI by expanding it. West Pleasant View is a census-designated place in Jefferson County, Colorado.1 References...

  4. West View, Pennsylvania: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Hide Map This article is a stub. You can help OpenEI by expanding it. West View is a borough in Allegheny County, Pennsylvania. It falls under Pennsylvania's 4th...

  5. Desert View Highlands, California: Energy Resources | Open Energy...

    Open Energy Info (EERE)

    Hide Map This article is a stub. You can help OpenEI by expanding it. Desert View Highlands is a census-designated place in Los Angeles County, California.1...

  6. Mountain View Electric Association, Inc- Energy Efficiency Rebates Program

    Broader source: Energy.gov [DOE]

    Mountain View Electric Association, Inc. (MVEA) and Tri-State Generation and Transmission Association Inc., MVEA’s power supplier, offers rebates to MVEA customers who install qualifying energy...

  7. 'Art of Science' exhibition on view thru November 2012 | Princeton...

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

    are on view until November 2012 in the Friend Center. Xenon Plasma Accelerator Jerry Ross (fac) PPPL A picture of a Hall-effect thruster (plasma accelerator) plume. The Hall...

  8. The Better Buildings Neighborhood View - Summer 2011 | Department...

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

    Summer 2011 The Better Buildings Neighborhood View - Summer 2011 The quarterly update newsletter of the Better Buildings program of the U.S. Department of Energy. PDF icon BB...

  9. Phase Effects on Mesoscale Object X-ray Absorption Images

    SciTech Connect (OSTI)

    Martz, Jr., H E; Aufderheide, M B; Barty, A; Lehman, S K; Kozioziemski, B J; Schneberk, D J

    2004-09-24

    At Lawrence Livermore National Laboratory particular emphasis is being placed on the nondestructive characterization (NDC) of 'mesoscale' objects.[Martz and Albrecht 2003] We define mesoscale objects as objects that have mm extent with {micro}m features. Here we confine our discussions to x-ray imaging methods applicable to mesoscale object characterization. The goal is object recovery algorithms including phase to enable emerging high-spatial resolution x-ray imaging methods to ''see'' inside or image mesoscale-size materials and objects. To be successful our imaging characterization effort must be able to recover the object function to one micrometer or better spatial resolution over a few millimeters field-of-view with very high contrast.

  10. Panel Views 'Big Step Increase' in Technology Development as Essential

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

    to Closing Cost Gap | Department of Energy Panel Views 'Big Step Increase' in Technology Development as Essential to Closing Cost Gap Panel Views 'Big Step Increase' in Technology Development as Essential to Closing Cost Gap October 5, 2015 - 12:15pm Addthis EM Deputy Assistant Secretary for Site Restoration Mark Gilbertson served as a member of a panel on the EM Technology Development Program. EM Deputy Assistant Secretary for Site Restoration Mark Gilbertson served as a member of a panel

  11. ALS Technique Gives Novel View of Lithium Battery Dendrite Growth

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

    ALS Technique Gives Novel View of Lithium Battery Dendrite Growth ALS Technique Gives Novel View of Lithium Battery Dendrite Growth Print Thursday, 24 April 2014 09:46 Lithium-ion batteries, popular in today's electronic devices and electric vehicles, could gain significant energy density if their graphite anodes were replaced with lithium metal anodes. But there's a major concern with substituting lithium-when the battery cycles, microscopic fibers of the lithium anodes ("dendrites")

  12. View from the Bridge: Commercial Vehicle Perspective | Department of Energy

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

    View from the Bridge: Commercial Vehicle Perspective View from the Bridge: Commercial Vehicle Perspective Truck manufacturer's perspective on technologies to achieve truck propulsion system efficiency gains PDF icon deer12_greszler.pdf More Documents & Publications Overview of the DOE High Efficiency Engine Technologies R&D Development and Update of Models for Long-Term Energy and GHG Impact Evaluation Overview of the DOE High Efficiency Engine Technologies R&D

  13. Grid Modernization - A View from Abroad | Department of Energy

    Office of Environmental Management (EM)

    Grid Modernization - A View from Abroad Grid Modernization - A View from Abroad November 21, 2014 - 4:58pm Addthis Thanks for joining us for #GridWeek! | Graphic by Sarah Gerrity, Energy Department. Thanks for joining us for #GridWeek! | Graphic by Sarah Gerrity, Energy Department. Patricia A. Hoffman Patricia A. Hoffman Assistant Secretary, Office of Electricity Delivery & Energy Reliability While Energy.gov was celebrating #GridWeek this week, I traveled to Japan for the 6th International

  14. Video Toroid Cavity Imager

    DOE Patents [OSTI]

    Gerald, Rex E. II; Sanchez, Jairo; Rathke, Jerome W.

    2004-08-10

    A video toroid cavity imager for in situ measurement of electrochemical properties of an electrolytic material sample includes a cylindrical toroid cavity resonator containing the sample and employs NMR and video imaging for providing high-resolution spectral and visual information of molecular characteristics of the sample on a real-time basis. A large magnetic field is applied to the sample under controlled temperature and pressure conditions to simultaneously provide NMR spectroscopy and video imaging capabilities for investigating electrochemical transformations of materials or the evolution of long-range molecular aggregation during cooling of hydrocarbon melts. The video toroid cavity imager includes a miniature commercial video camera with an adjustable lens, a modified compression coin cell imager with a fiat circular principal detector element, and a sample mounted on a transparent circular glass disk, and provides NMR information as well as a video image of a sample, such as a polymer film, with micrometer resolution.

  15. imageMCR

    Energy Science and Technology Software Center (OSTI)

    2011-09-27

    imageMCR is a user friendly software package that consists of a variety inputs to preprocess and analyze the hyperspectral image data using multivariate algorithms such as Multivariate Curve Resolution (MCR), Principle Component Analysis (PCA), Classical Least Squares (CLS) and Parallel Factor Analysis (PARAFAC). MCR provides a relative quantitative analysis of the hyperspectral image data without the need for standards, and it discovers all the emitting species (spectral pure components) present in an image, even thosemore » in which there is no a priori information. Once the spectral components are discovered, these spectral components can be used for future MCR analyses or used with CLS algorithms to quickly extract concentration image maps for each component within spectral image data sets.« less

  16. Imaging arrangement and microscope

    DOE Patents [OSTI]

    Pertsinidis, Alexandros; Chu, Steven

    2015-12-15

    An embodiment of the present invention is an imaging arrangement that includes imaging optics, a fiducial light source, and a control system. In operation, the imaging optics separate light into first and second tight by wavelength and project the first and second light onto first and second areas within first and second detector regions, respectively. The imaging optics separate fiducial light from the fiducial light source into first and second fiducial light and project the first and second fiducial light onto third and fourth areas within the first and second detector regions, respectively. The control system adjusts alignment of the imaging optics so that the first and second fiducial light projected onto the first and second detector regions maintain relatively constant positions within the first and second detector regions, respectively. Another embodiment of the present invention is a microscope that includes the imaging arrangement.

  17. Beam imaging sensor

    DOE Patents [OSTI]

    McAninch, Michael D; Root, Jeffrey J

    2015-03-31

    The present invention relates generally to the field of sensors for beam imaging and, in particular, to a new and useful beam imaging sensor for use in determining, for example, the power density distribution of a beam including, but not limited to, an electron beam or an ion beam. In one embodiment, the beam imaging sensor of the present invention comprises, among other items, a circumferential slit that is either circular, elliptical or polygonal in nature.

  18. Manhattan Project: Events Images

    Office of Scientific and Technical Information (OSTI)

    Resources About this Site How to Navigate this Site Library Maps Note on Sources Nuclear Energy and the Public's Right to Know Photo Gallery Site Map Sources and Notes Suggested Readings EVENTS IMAGES Resources > Photo Gallery Page Content Here Scroll down to see each of these images individually. The images are: 1. Albert Einstein and Leo Szilard (courtesy the Federation of American Scientists); 2. Painting of CP-1 going critical (courtesy the National Archives); 3. An Alpha Racetrack inside

  19. ARM - Measurement - Aerosol image

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

    image ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Aerosol image Images of aerosols from which one can derive characteristics such as size and shape. Categories Aerosols Instruments The above measurement is considered scientifically relevant for the following instruments. Refer to the datastream (netcdf) file headers of each instrument for a list of all available measurements, including those

  20. User Science Images

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

    in a Field Reverse Configuration (FRC) magnetic field. Magnetic separatrix denoted by green surface. Spheres are colored by azimuthal velocity. Image courtesy of Charlson Kim,...

  1. Quantitative luminescence imaging system

    DOE Patents [OSTI]

    Erwin, D.N.; Kiel, J.L.; Batishko, C.R.; Stahl, K.A.

    1990-08-14

    The QLIS images and quantifies low-level chemiluminescent reactions in an electromagnetic field. It is capable of real time nonperturbing measurement and simultaneous recording of many biochemical and chemical reactions such as luminescent immunoassays or enzyme assays. The system comprises image transfer optics, a low-light level digitizing camera with image intensifying microchannel plates, an image process or, and a control computer. The image transfer optics may be a fiber image guide with a bend, or a microscope, to take the light outside of the RF field. Output of the camera is transformed into a localized rate of cumulative digitalized data or enhanced video display or hard-copy images. The system may be used as a luminescent microdosimetry device for radiofrequency or microwave radiation, as a thermal dosimeter, or in the dosimetry of ultra-sound (sonoluminescence) or ionizing radiation. It provides a near-real-time system capable of measuring the extremely low light levels from luminescent reactions in electromagnetic fields in the areas of chemiluminescence assays and thermal microdosimetry, and is capable of near-real-time imaging of the sample to allow spatial distribution analysis of the reaction. It can be used to instrument three distinctly different irradiation configurations, comprising (1) RF waveguide irradiation of a small Petri-dish-shaped sample cell, (2) RF irradiation of samples in a microscope for the microscopic imaging and measurement, and (3) RF irradiation of small to human body-sized samples in an anechoic chamber. 22 figs.

  2. Ferroelectric optical image comparator

    DOE Patents [OSTI]

    Butler, Michael A. (Albuquerque, NM); Land, Cecil E. (Albuquerque, NM); Martin, Stephen J. (Albuquerque, NM); Pfeifer, Kent B. (Los Lunas, NM)

    1993-01-01

    A ferroelectric optical image comparator has a lead lanthanum zirconate titanate thin-film device which is constructed with a semi-transparent or transparent conductive first electrode on one side of the thin film, a conductive metal second electrode on the other side of the thin film, and the second electrode is in contact with a nonconducting substrate. A photoinduced current in the device represents the dot product between a stored image and an image projected onto the first electrode. One-dimensional autocorrelations are performed by measuring this current while displacing the projected image.

  3. Graphics and Image Standards

    Broader source: Energy.gov [DOE]

    For EERE websites and applications, follow these requirements and best practices for designing graphics and developing images. This includes making them Section 508-compliant.

  4. Ferroelectric optical image comparator

    DOE Patents [OSTI]

    Butler, M.A.; Land, C.E.; Martin, S.J.; Pfeifer, K.B.

    1993-11-30

    A ferroelectric optical image comparator has a lead lanthanum zirconate titanate thin-film device which is constructed with a semi-transparent or transparent conductive first electrode on one side of the thin film, a conductive metal second electrode on the other side of the thin film, and the second electrode is in contact with a nonconducting substrate. A photoinduced current in the device represents the dot product between a stored image and an image projected onto the first electrode. One-dimensional autocorrelations are performed by measuring this current while displacing the projected image. 7 figures.

  5. Quantitative luminescence imaging system

    DOE Patents [OSTI]

    Erwin, David N. (San Antonio, TX); Kiel, Johnathan L. (San Antonio, TX); Batishko, Charles R. (West Richland, WA); Stahl, Kurt A. (Richland, WA)

    1990-01-01

    The QLIS images and quantifies low-level chemiluminescent reactions in an electromagnetic field. It is capable of real time nonperturbing measurement and simultaneous recording of many biochemical and chemical reactions such as luminescent immunoassays or enzyme assays. The system comprises image transfer optics, a low-light level digitizing camera with image intensifying microchannel plates, an image process or, and a control computer. The image transfer optics may be a fiber image guide with a bend, or a microscope, to take the light outside of the RF field. Output of the camera is transformed into a localized rate of cumulative digitalized data or enhanced video display or hard-copy images. The system may be used as a luminescent microdosimetry device for radiofrequency or microwave radiation, as a thermal dosimeter, or in the dosimetry of ultra-sound (sonoluminescence) or ionizing radiation. It provides a near-real-time system capable of measuring the extremely low light levels from luminescent reactions in electromagnetic fields in the areas of chemiluminescence assays and thermal microdosimetry, and is capable of near-real-time imaging of the sample to allow spatial distribution analysis of the reaction. It can be used to instrument three distinctly different irradiation configurations, comprising (1) RF waveguide irradiation of a small Petri-dish-shaped sample cell, (2) RF irradiation of samples in a microscope for the microscopie imaging and measurement, and (3) RF irradiation of small to human body-sized samples in an anechoic chamber.

  6. Fermilab | Press Room | Images

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

    When using these images, please credit Fermilab. Return to Press Release Med Res | Hi Res According to the Standard Model of particles and forces, the Higgs mechanism gives...

  7. Fermilab | Press Room | Images

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

    using these images, please credit them as specified. Return to Press Release Med Res | Hi Res The Standard Model describes the interactions of the fundamental particle of the...

  8. Automated eXpert Spectral Image Analysis

    Energy Science and Technology Software Center (OSTI)

    2003-11-25

    AXSIA performs automated factor analysis of hyperspectral images. In such images, a complete spectrum is collected an each point in a 1-, 2- or 3- dimensional spatial array. One of the remaining obstacles to adopting these techniques for routine use is the difficulty of reducing the vast quantities of raw spectral data to meaningful information. Multivariate factor analysis techniques have proven effective for extracting the essential information from high dimensional data sets into a limtedmore » number of factors that describe the spectral characteristics and spatial distributions of the pure components comprising the sample. AXSIA provides tools to estimate different types of factor models including Singular Value Decomposition (SVD), Principal Component Analysis (PCA), PCA with factor rotation, and Alternating Least Squares-based Multivariate Curve Resolution (MCR-ALS). As part of the analysis process, AXSIA can automatically estimate the number of pure components that comprise the data and can scale the data to account for Poisson noise. The data analysis methods are fundamentally based on eigenanalysis of the data crossproduct matrix coupled with orthogonal eigenvector rotation and constrained alternating least squares refinement. A novel method for automatically determining the number of significant components, which is based on the eigenvalues of the crossproduct matrix, has also been devised and implemented. The data can be compressed spectrally via PCA and spatially through wavelet transforms, and algorithms have been developed that perform factor analysis in the transform domain while retaining full spatial and spectral resolution in the final result. These latter innovations enable the analysis of larger-than core-memory spectrum-images. AXSIA was designed to perform automated chemical phase analysis of spectrum-images acquired by a variety of chemical imaging techniques. Successful applications include Energy Dispersive X-ray Spectroscopy, X-ray Fluorescence Spectroscopy, Laser-Induced Fluorescence Spectroscopy and Time-of-Flight Secondary Ion Mass Spectroscopy.« less

  9. A MULTI-SPACECRAFT VIEW OF A GIANT FILAMENT ERUPTION DURING 2009 SEPTEMBER 26/27

    SciTech Connect (OSTI)

    Gosain, Sanjay; Schmieder, Brigitte; Artzner, Guy; Bogachev, Sergei; Toeroek, Tibor

    2012-12-10

    We analyze multi-spacecraft observations of a giant filament eruption that occurred during 2009 September 26 and 27. The filament eruption was associated with a relatively slow coronal mass ejection. The filament consisted of a large and a small part, and both parts erupted nearly simultaneously. Here we focus on the eruption associated with the larger part of the filament. The STEREO satellites were separated by about 117 Degree-Sign during this event, so we additionally used SoHO/EIT and CORONAS/TESIS observations as a third eye (Earth view) to aid our measurements. We measure the plane-of-sky trajectory of the filament as seen from STEREO-A and TESIS viewpoints. Using a simple trigonometric relation, we then use these measurements to estimate the true direction of propagation of the filament which allows us to derive the true R/R{sub Sun }-time profile of the filament apex. Furthermore, we develop a new tomographic method that can potentially provide a more robust three-dimensional (3D) reconstruction by exploiting multiple simultaneous views. We apply this method also to investigate the 3D evolution of the top part of filament. We expect this method to be useful when SDO and STEREO observations are combined. We then analyze the kinematics of the eruptive filament during its rapid acceleration phase by fitting different functional forms to the height-time data derived from the two methods. We find that for both methods an exponential function fits the rise profile of the filament slightly better than parabolic or cubic functions. Finally, we confront these results with the predictions of theoretical eruption models.

  10. PPPL Area Map | Princeton Plasma Physics Lab

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

    PPPL Area Map View Larger Map

  11. DOE Tour of Zero: Marine Drive by Clifton View Homes | Department...

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

    Marine Drive by Clifton View Homes DOE Tour of Zero: Marine Drive by Clifton View Homes 1 of 10 Clifton View Homes built this 2,408-square-foot zero energy home in Coupeville,...

  12. Edge-based correlation image registration for multispectral imaging

    DOE Patents [OSTI]

    Nandy, Prabal (Albuquerque, NM)

    2009-11-17

    Registration information for images of a common target obtained from a plurality of different spectral bands can be obtained by combining edge detection and phase correlation. The images are edge-filtered, and pairs of the edge-filtered images are then phase correlated to produce phase correlation images. The registration information can be determined based on these phase correlation images.

  13. Cathodoluminescence Spectrum Imaging Software

    Energy Science and Technology Software Center (OSTI)

    2011-04-07

    The software developed for spectrum imaging is applied to the analysis of the spectrum series generated by our cathodoluminescence instrumentation. This software provides advanced processing capabilities s such: reconstruction of photon intensity (resolved in energy) and photon energy maps, extraction of the spectrum from selected areas, quantitative imaging mode, pixel-to-pixel correlation spectrum line scans, ASCII, output, filling routines, drift correction, etc.

  14. Heart imaging method

    DOE Patents [OSTI]

    Collins, H. Dale (Richland, WA); Gribble, R. Parks (Richland, WA); Busse, Lawrence J. (Littleton, CO)

    1991-01-01

    A method for providing an image of the human heart's electrical system derives time-of-flight data from an array of EKG electrodes and this data is transformed into phase information. The phase information, treated as a hologram, is reconstructed to provide an image in one or two dimensions of the electrical system of the functioning heart.

  15. Medical imaging systems

    DOE Patents [OSTI]

    Frangioni, John V. (Wayland, MA)

    2012-07-24

    A medical imaging system provides simultaneous rendering of visible light and fluorescent images. The system may employ dyes in a small-molecule form that remains in a subject's blood stream for several minutes, allowing real-time imaging of the subject's circulatory system superimposed upon a conventional, visible light image of the subject. The system may also employ dyes or other fluorescent substances associated with antibodies, antibody fragments, or ligands that accumulate within a region of diagnostic significance. In one embodiment, the system provides an excitation light source to excite the fluorescent substance and a visible light source for general illumination within the same optical guide that is used to capture images. In another embodiment, the system is configured for use in open surgical procedures by providing an operating area that is closed to ambient light. More broadly, the systems described herein may be used in imaging applications where a visible light image may be usefully supplemented by an image formed from fluorescent emissions from a fluorescent substance that marks areas of functional interest.

  16. Fluorescent image tracking velocimeter

    DOE Patents [OSTI]

    Shaffer, Franklin D. (Library, PA)

    1994-01-01

    A multiple-exposure fluorescent image tracking velocimeter (FITV) detects and measures the motion (trajectory, direction and velocity) of small particles close to light scattering surfaces. The small particles may follow the motion of a carrier medium such as a liquid, gas or multi-phase mixture, allowing the motion of the carrier medium to be observed, measured and recorded. The main components of the FITV include: (1) fluorescent particles; (2) a pulsed fluorescent excitation laser source; (3) an imaging camera; and (4) an image analyzer. FITV uses fluorescing particles excited by visible laser light to enhance particle image detectability near light scattering surfaces. The excitation laser light is filtered out before reaching the imaging camera allowing the fluoresced wavelengths emitted by the particles to be detected and recorded by the camera. FITV employs multiple exposures of a single camera image by pulsing the excitation laser light for producing a series of images of each particle along its trajectory. The time-lapsed image may be used to determine trajectory and velocity and the exposures may be coded to derive directional information.

  17. Image forming apparatus

    DOE Patents [OSTI]

    Satoh, Hisao (Hachioji, JP); Haneda, Satoshi (Hachioji, JP); Ikeda, Tadayoshi (Hachioji, JP); Morita, Shizuo (Hachioji, JP); Fukuchi, Masakazu (Hachioji, JP)

    1996-01-01

    In an image forming apparatus having a detachable process cartridge in which an image carrier on which an electrostatic latent image is formed, and a developing unit which develops the electrostatic latent image so that a toner image can be formed, both integrally formed into one unit. There is provided a developer container including a discharge section which can be inserted into a supply opening of the developing unit, and a container in which a predetermined amount of developer is contained, wherein the developer container is provided to the toner supply opening of the developing unit and the developer is supplied into the developing unit housing when a toner stirring screw of the developing unit is rotated.

  18. Confocal coded aperture imaging

    DOE Patents [OSTI]

    Tobin, Jr., Kenneth William (Harriman, TN); Thomas, Jr., Clarence E. (Knoxville, TN)

    2001-01-01

    A method for imaging a target volume comprises the steps of: radiating a small bandwidth of energy toward the target volume; focusing the small bandwidth of energy into a beam; moving the target volume through a plurality of positions within the focused beam; collecting a beam of energy scattered from the target volume with a non-diffractive confocal coded aperture; generating a shadow image of said aperture from every point source of radiation in the target volume; and, reconstructing the shadow image into a 3-dimensional image of the every point source by mathematically correlating the shadow image with a digital or analog version of the coded aperture. The method can comprise the step of collecting the beam of energy scattered from the target volume with a Fresnel zone plate.

  19. Time encoded radiation imaging

    DOE Patents [OSTI]

    Marleau, Peter; Brubaker, Erik; Kiff, Scott

    2014-10-21

    The various technologies presented herein relate to detecting nuclear material at a large stand-off distance. An imaging system is presented which can detect nuclear material by utilizing time encoded imaging relating to maximum and minimum radiation particle counts rates. The imaging system is integrated with a data acquisition system that can utilize variations in photon pulse shape to discriminate between neutron and gamma-ray interactions. Modulation in the detected neutron count rates as a function of the angular orientation of the detector due to attenuation of neighboring detectors is utilized to reconstruct the neutron source distribution over 360 degrees around the imaging system. Neutrons (e.g., fast neutrons) and/or gamma-rays are incident upon scintillation material in the imager, the photons generated by the scintillation material are converted to electrical energy from which the respective neutrons/gamma rays can be determined and, accordingly, a direction to, and the location of, a radiation source identified.

  20. Differing professional views or opinions: 1994 Special Review Panel

    SciTech Connect (OSTI)

    1996-09-01

    In July 1994, the Executive Director for Operations of the US Nuclear Regulatory Commission (NRC) appointed a Special Review Panel to assess the Differing Professional View or Opinion (DPV/DPO) process, including its effectiveness, how well it is understood by employees, and the organizational climate for having such views aired and properly decided. An additional area within this review was to address the effectiveness of the DPO procedures as they pertain to public access and confidentiality. Further, the Panel was charged with the review of the submittals completed since the last review to identify employees who made significant contributions to the agency or to the public health and safety but had not been adequately recognized for this contribution. The report presents the Special Review Panel`s evaluation of the NRC`s current process for dealing with Differing Professional Views or Opinions. Provided in this report are the results of an employee opinion survey on the process; highlights and suggestions from interviews with individuals who had submitted a Differing Professional View or Opinion, as well as with agency managers directly involved with the Differing Professional Views or Opinions process; and the Special Review Panel`s recommendations for improving the DPV/DPO process.

  1. New ALS Technique Gives Nanoscale Views of Complex Systems

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

    images of these ultra-thin nanosheets for the first time. By combining atomic force microscopy with infrared synchrotron light, ALS researchers from Berkeley Lab and the...

  2. New ALS Technique Gives Nanoscale Views of Complex Systems

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

    spectroscopic images of these ultra-thin nanosheets for the first time. By combining atomic force microscopy with infrared synchrotron light, ALS researchers from Berkeley Lab...

  3. Biogas From Municipal WWTPs: Fuel Cells Viewed as a Value Proposition...

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

    From Municipal WWTPs: Fuel Cells Viewed as a Value Proposition Biogas From Municipal WWTPs: Fuel Cells Viewed as a Value Proposition Presentation about the value proposition for ...

  4. V-195: RSA Authentication Manager Lets Local Users View the Administra...

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

    5: RSA Authentication Manager Lets Local Users View the Administrative Account Password V-195: RSA Authentication Manager Lets Local Users View the Administrative Account Password...

  5. Nuclear magnetic resonance imaging with hyper-polarized noble gases

    SciTech Connect (OSTI)

    Schmidt, D.M.; George, J.S.; Penttila, S.I.; Caprihan, A.

    1997-10-01

    This is the final report of a six-month, Laboratory Directed Research and Development (LDRD) project at Los Alamos National Laboratory (LANL). The nuclei of noble gases can be hyper polarized through a laser-driven spin exchange to a degree many orders of magnitude larger than that attainable by thermal polarization without requiring a strong magnetic field. The increased polarization from the laser pumping enables a good nuclear magnetic resonance (NMR) signal from a gas. The main goal of this project was to demonstrate diffusion-weighted imaging of such hyper-polarized noble gas with magnetic resonance imaging (MRI). Possible applications include characterizing porosity of materials and dynamically imaging pressure distributions in biological or acoustical systems.

  6. Adaptive wiener image restoration kernel

    DOE Patents [OSTI]

    Yuan, Ding

    2007-06-05

    A method and device for restoration of electro-optical image data using an adaptive Wiener filter begins with constructing imaging system Optical Transfer Function, and the Fourier Transformations of the noise and the image. A spatial representation of the imaged object is restored by spatial convolution of the image using a Wiener restoration kernel.

  7. Polarization transfer NMR imaging

    DOE Patents [OSTI]

    Sillerud, Laurel O.; van Hulsteyn, David B.

    1990-01-01

    A nuclear magnetic resonance (NMR) image is obtained with spatial information modulated by chemical information. The modulation is obtained through polarization transfer from a first element representing the desired chemical, or functional, information, which is covalently bonded and spin-spin coupled with a second element effective to provide the imaging data. First and second rf pulses are provided at first and second frequencies for exciting the imaging and functional elements, with imaging gradients applied therebetween to spatially separate the nuclei response for imaging. The second rf pulse is applied at a time after the first pulse which is the inverse of the spin coupling constant to select the transfer element nuclei which are spin coupled to the functional element nuclei for imaging. In a particular application, compounds such as glucose, lactate, or lactose, can be labeled with .sup.13 C and metabolic processes involving the compounds can be imaged with the sensitivity of .sup.1 H and the selectivity of .sup.13 C.

  8. Fermilab | Tritium at Fermilab | Indian Creek Aerial View

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

    Indian Creek Aerial View Indian Creek Aerial View Indian Creek is a small creek that originates on the Fermilab site and leaves the lab at its southwest corner. The flow of water in the creek varies with the amount of rain that falls during the year. At present, Indian Creek has very low levels of water. Even at its strongest flow, Indian Creek is a shallow creek with a width of a few feet where it leaves the Fermilab site. Just outside the Fermilab site, the creek flows through ponds in the

  9. Advanced Imaging Algorithms for Radiation Imaging Systems

    SciTech Connect (OSTI)

    Marleau, Peter

    2015-10-01

    The intent of the proposed work, in collaboration with University of Michigan, is to develop the algorithms that will bring the analysis from qualitative images to quantitative attributes of objects containing SNM. The first step to achieving this is to develop an indepth understanding of the intrinsic errors associated with the deconvolution and MLEM algorithms. A significant new effort will be undertaken to relate the image data to a posited three-dimensional model of geometric primitives that can be adjusted to get the best fit. In this way, parameters of the model such as sizes, shapes, and masses can be extracted for both radioactive and non-radioactive materials. This model-based algorithm will need the integrated response of a hypothesized configuration of material to be calculated many times. As such, both the MLEM and the model-based algorithm require significant increases in calculation speed in order to converge to solutions in practical amounts of time.

  10. Sparse Image Format

    Energy Science and Technology Software Center (OSTI)

    2007-04-12

    The Sparse Image Format (SIF) is a file format for storing spare raster images. It works by breaking an image down into tiles. Space is savid by only storing non-uniform tiles, i.e. tiles with at least two different pixel values. If a tile is completely uniform, its common pixel value is stored instead of the complete tile raster. The software is a library in the C language used for manipulating files in SIF format. Itmore » supports large files (> 2GB) and is designed to build in Windows and Linux environments.« less

  11. Lanczos Image Resampling Benchmark

    Energy Science and Technology Software Center (OSTI)

    2007-09-30

    This software abstracts a simple computational kernel from SWarp, an astrometric image resampling code. The input is a grayscale PGM image file (8-bit or 16-bit integer) and the output is a higher-resolution grayscale image file (8-bit or 16-bit integer, or 32-bit floating point). The user selects a scaling factor to be applied and a convolution kernel type to be used during resampling (using 1, 16, 36, 64 input pixels to generate each output pixel). Themoreresampling is performed using the OpenGL API and can run on a PC with GPU (graphics processing unit) hardware.less

  12. Nuclear medicine imaging system

    DOE Patents [OSTI]

    Bennett, G.W.; Brill, A.B.; Bizais, Y.J.C.; Rowe, R.W.; Zubal, I.G.

    1983-03-11

    It is an object of this invention to provide a nuclear imaging system having the versatility to do positron annihilation studies, rotating single or opposed camera gamma emission studies, and orthogonal gamma emission studies. It is a further object of this invention to provide an imaging system having the capability for orthogonal dual multipinhole tomography. It is another object of this invention to provide a nuclear imaging system in which all available energy data, as well as patient physiological data, are acquired simultaneously in list mode.

  13. Scanning computed confocal imager

    DOE Patents [OSTI]

    George, John S. (Los Alamos, NM)

    2000-03-14

    There is provided a confocal imager comprising a light source emitting a light, with a light modulator in optical communication with the light source for varying the spatial and temporal pattern of the light. A beam splitter receives the scanned light and direct the scanned light onto a target and pass light reflected from the target to a video capturing device for receiving the reflected light and transferring a digital image of the reflected light to a computer for creating a virtual aperture and outputting the digital image. In a transmissive mode of operation the invention omits the beam splitter means and captures light passed through the target.

  14. User Science Images

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

    after onset of convection overlayed on the AMR grid. Image courtesy of George Pau and John Bell (LBNL). Repo mp111 marcdayhydrogenflame.jpg ASCR: Lab-scale Flame Simulation...

  15. Photothermal imaging scanning microscopy

    DOE Patents [OSTI]

    Chinn, Diane (Pleasanton, CA); Stolz, Christopher J. (Lathrop, CA); Wu, Zhouling (Pleasanton, CA); Huber, Robert (Discovery Bay, CA); Weinzapfel, Carolyn (Tracy, CA)

    2006-07-11

    Photothermal Imaging Scanning Microscopy produces a rapid, thermal-based, non-destructive characterization apparatus. Also, a photothermal characterization method of surface and subsurface features includes micron and nanoscale spatial resolution of meter-sized optical materials.

  16. X-ray Imaging Workshop

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

    microscopy (PEEM), angle resolved photoemission spectroscopy (ARPES), coherent diffraction imaging, x-ray microscopy, micro-tomography, holographic imaging, and x-ray...

  17. Lensless Imaging of Magnetic Nanostructures

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

    Lensless Imaging of Magnetic Nanostructures Print Magnetism is useful for many devices and techniques, from electric motors and computer hard drives to magnetic resonance imaging...

  18. Lensless Imaging of Magnetic Nanostructures

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

    Imaging of Magnetic Nanostructures Print Magnetism is useful for many devices and techniques, from electric motors and computer hard drives to magnetic resonance imaging used in...

  19. Visualizations Image Gallery

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

    Visualizations Visualizations Image Gallery Chensantacruz Unusual Death for Ancient Stars chombocrunch2shalehi-res.jpg Resolved Steady-State Flow in Fractured Shale inn-nano-wire-pr-green.png Indium Nitride Nanostructures For More Efficient LEDs combustionmodeling1.jpg Turbulent Combustion Simulations lic-b-427-hr-crop-small.png Turbulence in Solar Wind corecollapserotator2 Explosion Mechanism in Core-Collapse Supernovae OpenMSINERSC.jpg OpenMSI: Mass Spectrometry Images of 3 Lipids Across a

  20. Reflective optical imaging system

    DOE Patents [OSTI]

    Shafer, David R. (Fairfield, CT)

    2000-01-01

    An optical system compatible with short wavelength (extreme ultraviolet) radiation comprising four reflective elements for projecting a mask image onto a substrate. The four optical elements are characterized in order from object to image as convex, concave, convex and concave mirrors. The optical system is particularly suited for step and scan lithography methods. The invention increases the slit dimensions associated with ringfield scanning optics, improves wafer throughput and allows higher semiconductor device density.

  1. Shifter: User Defined Images

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

    Shifter: User Defined Images Shifter: User Defined Images Shifter: Bringing Linux containers to HPC NERSC is working to increase flexibility and usability of its HPC systems by enabling Docker-like Linux container technology. Linux containers allow an application to be packaged with its entire software stack - including some portions of the base OS files - as well defining needed user environment variables and application "entry point.". Containers may provide an abstract way of

  2. A View From The Bridge | Department of Energy

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

    From The Bridge A View From The Bridge Presentation given at DEER 2006, August 20-24, 2006, Detroit, Michigan. Sponsored by the U.S. DOE's EERE FreedomCar and Fuel Partnership and 21st Century Truck Programs. PDF icon 2006_deer_walsh.pdf More Documents & Publications EPA Diesel Update EPA Mobile Source Rule Update

  3. Turbine imaging technology assessment

    SciTech Connect (OSTI)

    Moursund, R. A.; Carlson, T. J.

    2004-12-01

    The goal of this project was to identify and evaluate imaging technologies for observing juvenile fish within a Kaplan turbine, and specifically that would enable scientists to determine mechanisms of fish injury within an operating turbine unit. This report documents the opportunities and constraints for observing juvenile fish at specific locations during turbine passage. These observations were used to make modifications to dam structures and operations to improve conditions for fish passage while maintaining or improving hydropower production. The physical and hydraulic environment that fish experience as they pass through the hydroelectric plants were studied and the regions with the greatest potential for injury were defined. Biological response data were also studied to determine the probable types of injuries sustained in the turbine intake and what types of injuries are detectable with imaging technologies. The study grouped injury-causing mechanisms into two categories: fluid (pressure/cavitation, shear, turbulence) and mechanical (strike/collision, grinding/pinching, scraping). The physical constraints of the environment, together with the likely types of injuries to fish, provided the parameters needed for a rigorous imaging technology evaluation. Types of technology evaluated included both tracking and imaging systems using acoustic technologies (such as sonar and acoustic tags) and optic technologies (such as pulsed-laser videography, which is high-speed videography using a laser as the flash). Criteria for determining image data quality such as frame rate, target detectability, and resolution were used to quantify the minimum requirements of an imaging sensor.

  4. Image portion identification methods, image parsing methods, image parsing systems, and articles of manufacture

    DOE Patents [OSTI]

    Lassahn, Gordon D.; Lancaster, Gregory D.; Apel, William A.; Thompson, Vicki S.

    2013-01-08

    Image portion identification methods, image parsing methods, image parsing systems, and articles of manufacture are described. According to one embodiment, an image portion identification method includes accessing data regarding an image depicting a plurality of biological substrates corresponding to at least one biological sample and indicating presence of at least one biological indicator within the biological sample and, using processing circuitry, automatically identifying a portion of the image depicting one of the biological substrates but not others of the biological substrates.

  5. Adventures of the first neuroscientist at Argonne | Argonne National...

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

    cell in a human brain. (Click to view larger.) Neuroscientist Bobby Kasthuri in front of images from his work to map every single cell in a human brain. (Click to view ...

  6. Fully Polarimetric Differential Intensity W-band Imager

    SciTech Connect (OSTI)

    Bernacki, Bruce E.; Tedeschi, Jonathan R.; Kelly, James F.; Sheen, David M.; Hall, Thomas E.; Valdez, Patrick LJ; Lechelt, Wayne M.; McMakin, Douglas L.

    2013-05-31

    We present a novel architecture based upon a Dicke-switched heterodyne radiometer architecture employing two identical input sections consisting of horn and orthomode transducer to detect the difference between the H and V polarization states of two separate object patches imaged by the radiometer. We have constructed and described previously a fully polarimetric W-band passive millimeter wave imager constructed to study the phenomenology of anomaly detection using polarimetric image exploitation of the Stokes images. The heterodyne radiometer used a PIN diode switch between the input millimeter wave energy and that of a reference load in order to eliminate the effects of component drifts and reduce the effects of 1/f noise. The differential approach differs from our previous work by comparing H and V polarization states detected by each of the two input horns instead of a reference load to form signals delta H and delta V from closely adjacent paired object patches. This novel imaging approach reduces common mode noise and enhances detection of small changes between the H and V polarization states of two object patches, now given as difference terms of the fully polarimetric radiometer. We present the theory of operation, initial proof of concept experimental results, and extension of the differential radiometer to a system with a binocular fore optics that allow adjustment of the convergence or shear of the object patches viewed by the differential polarimetric imager.

  7. Spectroscopic imaging of self-organization in high power impulse magnetron sputtering plasmas

    SciTech Connect (OSTI)

    Centre for Quantum Technologies, National University of Singapore, 3 Science Drive 2, 117543 Singapore, Singapore; Andersson, Joakim; Ni, Pavel; Anders, Andre

    2013-07-17

    Excitation and ionization conditions in traveling ionization zones of high power impulse magnetron sputtering plasmas were investigated using fast camera imaging through interference filters. The images, taken in end-on and side on views using light of selected gas and target atom and ion spectral lines, suggest that ionization zones are regions of enhanced densities of electrons, and excited atoms and ions. Excited atoms and ions of the target material (Al) are strongly concentrated near the target surface. Images from the highest excitation energies exhibit the most localized regions, suggesting localized Ohmic heating consistent with double layer formation.

  8. Spectroscopic imaging of self-organization in high power impulse magnetron sputtering plasmas

    SciTech Connect (OSTI)

    Andersson, Joakim; Centre for Quantum Technologies, National University of Singapore, 3 Science Drive 2, 117543 Singapore ; Ni, Pavel; Anders, Andr

    2013-07-29

    Excitation and ionization conditions in traveling ionization zones of high power impulse magnetron sputtering plasmas were investigated using fast camera imaging through interference filters. The images, taken in end-on and side-on views using light of selected gas and target atom and ion spectral lines, suggest that ionization zones are regions of enhanced densities of electrons, and excited atoms and ions. Excited atoms and ions of the target material (Al) are strongly concentrated near the target surface. Images from the highest excitation energies exhibit the most localized regions, suggesting localized Ohmic heating consistent with double layer formation.

  9. Portal dosimetry for VMAT using integrated images obtained during treatment

    SciTech Connect (OSTI)

    Bedford, James L. Hanson, Ian M.; Hansen, Vibeke Nordmark

    2014-02-15

    Purpose: Portal dosimetry provides an accurate and convenient means of verifying dose delivered to the patient. A simple method for carrying out portal dosimetry for volumetric modulated arc therapy (VMAT) is described, together with phantom measurements demonstrating the validity of the approach. Methods: Portal images were predicted by projecting dose in the isocentric plane through to the portal image plane, with exponential attenuation and convolution with a double-Gaussian scatter function. Appropriate parameters for the projection were selected by fitting the calculation model to portal images measured on an iViewGT portal imager (Elekta AB, Stockholm, Sweden) for a variety of phantom thicknesses and field sizes. This model was then used to predict the portal image resulting from each control point of a VMAT arc. Finally, all these control point images were summed to predict the overall integrated portal image for the whole arc. The calculated and measured integrated portal images were compared for three lung and three esophagus plans delivered to a thorax phantom, and three prostate plans delivered to a homogeneous phantom, using a gamma index for 3% and 3 mm. A 0.6 cm{sup 3} ionization chamber was used to verify the planned isocentric dose. The sensitivity of this method to errors in monitor units, field shaping, gantry angle, and phantom position was also evaluated by means of computer simulations. Results: The calculation model for portal dose prediction was able to accurately compute the portal images due to simple square fields delivered to solid water phantoms. The integrated images of VMAT treatments delivered to phantoms were also correctly predicted by the method. The proportion of the images with a gamma index of less than unity was 93.7% 3.0% (1SD) and the difference between isocenter dose calculated by the planning system and measured by the ionization chamber was 0.8% 1.0%. The method was highly sensitive to errors in monitor units and field shape, but less sensitive to errors in gantry angle or phantom position. Conclusions: This method of predicting integrated portal images provides a convenient means of verifying dose delivered using VMAT, with minimal image acquisition and data processing requirements.

  10. Multispectral imaging probe

    DOE Patents [OSTI]

    Sandison, D.R.; Platzbecker, M.R.; Descour, M.R.; Armour, D.L.; Craig, M.J.; Richards-Kortum, R.

    1999-07-27

    A multispectral imaging probe delivers a range of wavelengths of excitation light to a target and collects a range of expressed light wavelengths. The multispectral imaging probe is adapted for mobile use and use in confined spaces, and is sealed against the effects of hostile environments. The multispectral imaging probe comprises a housing that defines a sealed volume that is substantially sealed from the surrounding environment. A beam splitting device mounts within the sealed volume. Excitation light is directed to the beam splitting device, which directs the excitation light to a target. Expressed light from the target reaches the beam splitting device along a path coaxial with the path traveled by the excitation light from the beam splitting device to the target. The beam splitting device directs expressed light to a collection subsystem for delivery to a detector. 8 figs.

  11. Microbial Cell Imaging

    SciTech Connect (OSTI)

    Doktycz, Mitchel John; Sullivan, Claretta; Mortensen, Ninell P; Allison, David P

    2011-01-01

    Atomic force microscopy (AFM) is finding increasing application in a variety of fields including microbiology. Until the emergence of AFM, techniques for ivnestigating processes in single microbes were limited. From a biologist's perspective, the fact that AFM can be used to generate high-resolution images in buffers or media is its most appealing feature as live-cell imaging can be pursued. Imaging living cells by AFM allows dynamic biological events to be studied, at the nanoscale, in real time. Few areas of biological research have as much to gain as microbiology from the application of AFM. Whereas the scale of microbes places them near the limit of resolution for light microscopy. AFM is well suited for the study of structures on the order of a micron or less. Although electron microscopy techniques have been the standard for high-resolution imaging of microbes, AFM is quickly gaining favor for several reasons. First, fixatives that impair biological activity are not required. Second, AFM is capable of detecting forces in the pN range, and precise control of the force applied to the cantilever can be maintained. This combination facilitates the evaluation of physical characteristics of microbes. Third, rather than yielding the composite, statistical average of cell populations, as is the case with many biochemical assays, the behavior of single cells can be monitored. Despite the potential of AFM in microbiology, there are several limitations that must be considered. For example, the time required to record an image allows for the study of gross events such as cell division or membrane degradation from an antibiotic but precludes the evaluation of biological reactions and events that happen in just fractions of a second. Additionally, the AFM is a topographical tool and is restricted to imaging surfaces. Therefore, it cannot be used to look inside cells as with opticla and transmission electron microscopes. other practical considerations are the limitation on the maximum scan size (roughly 100 x 100 {mu}m) and the restricted movement of the cantilever in the Z (or height) direction. In most commercial AFMs, the Z range is restricted to roughly 10 {mu}m such that the height of cells to be imaged must be seriously considered. Nevertheless, AFM can provide structural-functional information at nanometer resolution and do so in physiologically relevant environments. Further, instrumentation for scanning probe microscopy continues to advance. Systems for high-speed imaging are becoming available, and techniques for looking inside the cells are being demonstrated. The ability to combine AFM with other imaging modalities is likely to have an even greater impact on microbiological studies. AFM studies of intact microbial cells started to appear in the literature in the 1990s. For example, AFM studies of Saccharomyces cerevisiae examined buddings cars after cell division and detailed changes related to cell growth processes. Also, the first AFM studies of bacterial biofilms appeared. In the late 1990s, AFM studies of intact fungal spores described clear changes in spore surfaces upon germination, and studies of individual bacterial cells were also described. These early bacterial imaging studies examined changes in bacterial morphology due to antimicrobial peptides exposure and bacterial adhesion properties. The majority of these early studies were carried out on dried samples and took advantage of the resolving power of AFM. The lack of cell mounting procedures presented an impediment for cell imaging studies. Subsequently, several approaches to mounting microbial cells have been developed, and these techniques are described later. Also highlighted are general considerations for microbial imaging and a description of some of the various applications of AFM to microbiology.

  12. Variable waveband infrared imager

    DOE Patents [OSTI]

    Hunter, Scott R.

    2013-06-11

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

  13. Multispectral imaging probe

    DOE Patents [OSTI]

    Sandison, David R. (Moriarty, NM); Platzbecker, Mark R. (Albuquerque, NM); Descour, Michael R. (Tucson, AZ); Armour, David L. (Albuquerque, NM); Craig, Marcus J. (Albuquerque, NM); Richards-Kortum, Rebecca (Austin, TX)

    1999-01-01

    A multispectral imaging probe delivers a range of wavelengths of excitation light to a target and collects a range of expressed light wavelengths. The multispectral imaging probe is adapted for mobile use and use in confined spaces, and is sealed against the effects of hostile environments. The multispectral imaging probe comprises a housing that defines a sealed volume that is substantially sealed from the surrounding environment. A beam splitting device mounts within the sealed volume. Excitation light is directed to the beam splitting device, which directs the excitation light to a target. Expressed light from the target reaches the beam splitting device along a path coaxial with the path traveled by the excitation light from the beam splitting device to the target. The beam splitting device directs expressed light to a collection subsystem for delivery to a detector.

  14. Fluid Imaging of Enhanced Geothermal Systems

    Broader source: Energy.gov [DOE]

    Project objectives: Attempting to Image EGS Fracture & Fluid Networks; Employing joint Geophysical Imaging Technologies.

  15. ALS Technique Gives Novel View of Lithium Battery Dendrite Growth

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

    ALS Technique Gives Novel View of Lithium Battery Dendrite Growth Print Lithium-ion batteries, popular in today's electronic devices and electric vehicles, could gain significant energy density if their graphite anodes were replaced with lithium metal anodes. But there's a major concern with substituting lithium-when the battery cycles, microscopic fibers of the lithium anodes ("dendrites") form on the surface of the lithium electrode and spread across the electrolyte until they reach

  16. September 2013 Most Viewed Documents for Energy Storage, Conversion, And

    Office of Scientific and Technical Information (OSTI)

    Utilization | OSTI, US Dept of Energy, Office of Scientific and Technical Information September 2013 Most Viewed Documents for Energy Storage, Conversion, And Utilization Process Equipment Cost Estimation, Final Report H.P. Loh; Jennifer Lyons; Charles W. White, III (2002) 169 Evaluation of the 2010 Toyota Prius Hybrid Synergy Drive System Burress, Timothy A [ORNL]; Campbell, Steven L [ORNL]; Coomer, Chester [ORNL]; Ayers, Curtis William [ORNL]; Wereszczak, Andrew A [ORNL]; Cunningham,

  17. September 2013 Most Viewed Documents for Fission And Nuclear Technologies |

    Office of Scientific and Technical Information (OSTI)

    OSTI, US Dept of Energy, Office of Scientific and Technical Information September 2013 Most Viewed Documents for Fission And Nuclear Technologies Science Subject Feed Estimation of gas leak rates through very small orifices and channels. [From sealed PuO/sub 2/ containers under accident conditions] Bomelburg, H.J. (1977) 133 /> Stress analysis and evaluation of a rectangular pressure vessel. [For equipment for sampling Hanford tank radwaste] Rezvani, M.A.; Ziada, H.H. (Westinghouse

  18. September 2013 Most Viewed Documents for Mathematics And Computing | OSTI,

    Office of Scientific and Technical Information (OSTI)

    US Dept of Energy, Office of Scientific and Technical Information September 2013 Most Viewed Documents for Mathematics And Computing Science Subject Feed Process Equipment Cost Estimation, Final Report H.P. Loh; Jennifer Lyons; Charles W. White, III (2002) 169 /> Lecture notes for introduction to safety and health Biele, F. (1992) 57 /> A comparison of risk assessment techniques from qualitative to quantitative Altenbach, T.J. (1995) 50 /> Computational procedures for determining

  19. September 2013 Most Viewed Documents for Renewable Energy Sources | OSTI,

    Office of Scientific and Technical Information (OSTI)

    US Dept of Energy, Office of Scientific and Technical Information September 2013 Most Viewed Documents for Renewable Energy Sources Science Subject Feed Chapter 11. Heat Exchangers Rafferty, Kevin D.; Culver, Gene (1998) 362 /> Wet cooling towers: rule-of-thumb design and simulation Leeper, S.A. (1981) 103 /> Chapter 17. Engineering cost analysis Higbee, Charles V. (1998) 79 /> Advanced Electric Submersible Pump Design Tool for Geothermal Applications Xuele Qi; Norman Turnquist;

  20. September 2015 Most Viewed Documents for Energy Storage, Conversion, And

    Office of Scientific and Technical Information (OSTI)

    Utilization | OSTI, US Dept of Energy, Office of Scientific and Technical Information September 2015 Most Viewed Documents for Energy Storage, Conversion, And Utilization Process Equipment Cost Estimation, Final Report H.P. Loh; Jennifer Lyons; Charles W. White, III (2002) 1049 Separation of heavy metals: Removal from industrial wastewaters and contaminated soil Peters, R.W.; Shem, L. (1993) 285 An Improved Method of Manufacturing Corrugated Boxes: Lateral Corrugator Frank C. Murray Ph.D.; ,

  1. September 2015 Most Viewed Documents for Environmental Sciences | OSTI, US

    Office of Scientific and Technical Information (OSTI)

    Dept of Energy, Office of Scientific and Technical Information September 2015 Most Viewed Documents for Environmental Sciences Separation of heavy metals: Removal from industrial wastewaters and contaminated soil Peters, R.W.; Shem, L. (1993) 285 Statistical methods for environmental pollution monitoring Gilbert, R.O. (1987) 126 Building a secondary containment system Broder, M.F. (1994) 121 Study of using oxygen-enriched combustion air for locomotive diesel engines Poola, R.B.; Sekar, R.

  2. September 2015 Most Viewed Documents for Fission And Nuclear Technologies |

    Office of Scientific and Technical Information (OSTI)

    OSTI, US Dept of Energy, Office of Scientific and Technical Information September 2015 Most Viewed Documents for Fission And Nuclear Technologies Estimation of gas leak rates through very small orifices and channels. [From sealed PuO/sub 2/ containers under accident conditions] Bomelburg, H.J. (1977) 444 System Definition and Analysis: Power Plant Design and Layout NONE (1996) 273 Stress analysis and evaluation of a rectangular pressure vessel. [For equipment for sampling Hanford tank

  3. September 2015 Most Viewed Documents for Mathematics And Computing | OSTI,

    Office of Scientific and Technical Information (OSTI)

    US Dept of Energy, Office of Scientific and Technical Information September 2015 Most Viewed Documents for Mathematics And Computing Process Equipment Cost Estimation, Final Report H.P. Loh; Jennifer Lyons; Charles W. White, III (2002) 1049 Lecture notes for introduction to safety and health Biele, F. (1992) 333 A comparison of risk assessment techniques from qualitative to quantitative Altenbach, T.J. (1995) 286 Ferrite Measurement in Austenitic and Duplex Stainless Steel Castings -

  4. September 2015 Most Viewed Documents for Renewable Energy Sources | OSTI,

    Office of Scientific and Technical Information (OSTI)

    US Dept of Energy, Office of Scientific and Technical Information September 2015 Most Viewed Documents for Renewable Energy Sources Calculation of brine properties. [Above 80/sup 0/F and for salt content between 5 and 25%] Dittman, G.L. (1977) 257 Aerodynamic characteristics of seven symmetrical airfoil sections through 180-degree angle of attack for use in aerodynamic analysis of vertical axis wind turbines Sheldahl, R E; Klimas, P C (1981) 217 Thermal conductivity of aqueous NaCl solutions

  5. A View from the Bridge | Department of Energy

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

    from the Bridge A View from the Bridge Presentation given at DEER 2006, August 20-24, 2006, Detroit, Michigan. Sponsored by the U.S. DOE's EERE FreedomCar and Fuel Partnership and 21st Century Truck Programs. PDF icon 2006_deer_weverstad.pdf More Documents & Publications The Drive for Energy Diversity and Sustainability: The Impact on Transportation Fuels and Propulsion System Portfolios Advanced Propulsion Technology Strategy

  6. December 2015 Most Viewed Documents for Energy Storage, Conversion, And

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

    Utilization | OSTI, US Dept of Energy, Office of Scientific and Technical Information December 2015 Most Viewed Documents for Energy Storage, Conversion, And Utilization Process Equipment Cost Estimation, Final Report H.P. Loh; Jennifer Lyons; Charles W. White, III (2002) 1446 Separation of heavy metals: Removal from industrial wastewaters and contaminated soil Peters, R.W.; Shem, L. (1993) 452 Automotive vehicle sensors Sheen, S.H.; Raptis, A.C.; Moscynski, M.J. (1995) 373 An Improved

  7. Consumer Views on Transportation and Advanced Vehicle Technologies

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

    Consumer Views on Transportation and Advanced Vehicle Technologies Mark Singer National Renewable Energy Laboratory Technical Report NREL/TP-5400-64840 September 2015 NREL is a national laboratory of the U.S. Department of Energy Office of Energy Efficiency & Renewable Energy Operated by the Alliance for Sustainable Energy, LLC This report is available at no cost from the National Renewable Energy Laboratory (NREL) at www.nrel.gov/publications. Contract No. DE-AC36-08GO28308 National

  8. January 2013 Most Viewed Documents for Energy Storage, Conversion, And

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

    Utilization | OSTI, US Dept of Energy, Office of Scientific and Technical Information January 2013 Most Viewed Documents for Energy Storage, Conversion, And Utilization Energy Technology Perspectives 2012: Executive Summary [Portuguese version] NONE Energy indicators for electricity production : comparing technologies and the nature of the indicators Energy Payback Ratio (EPR), Net Energy Ratio (NER) and Cumulative Energy Demand (CED). [Oestfoldforskning AS] Raadal, Hanne Lerche [Ostfold

  9. January 2013 Most Viewed Documents for Environmental Sciences | OSTI, US

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

    Dept of Energy, Office of Scientific and Technical Information January 2013 Most Viewed Documents for Environmental Sciences Horizontal Advanced Tensiometer Hubbell, Joel M.; Sisson, James B. 2 micron LIDAR for laser-based remote sensing: Flight demonstration and application survey Wagener, T.J.; Demma, N.; Kmetec, J.D.; Kubo, T.S. [Honeywell Technology Cent, Bloomington, MN (United States)] Streamflow and selected precipitation data for Yucca Mountain and vicinity, Nye County, Nevada, water

  10. January 2013 Most Viewed Documents for Power Generation And Distribution |

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

    OSTI, US Dept of Energy, Office of Scientific and Technical Information January 2013 Most Viewed Documents for Power Generation And Distribution Lessons from Large-Scale Renewable Energy Integration Studies: Preprint Bird, L.; Milligan, M. Small punch creep test: A promising methodology for high temperature plant components life evaluation Tettamanti, S. [CISE SpA, Milan (Italy)]; Crudeli, R. [ENEL SpA, Milan (Italy)] Failure analyses and weld repair of boiler feed water pumps Vulpen, R. van

  11. June 2014 Most Viewed Documents for Energy Storage, Conversion, And

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

    Utilization | OSTI, US Dept of Energy, Office of Scientific and Technical Information June 2014 Most Viewed Documents for Energy Storage, Conversion, And Utilization Science Subject Feed Process Equipment Cost Estimation, Final Report H.P. Loh; Jennifer Lyons; Charles W. White, III (2002) 337 /> Seventh Edition Fuel Cell Handbook NETL (2004) 118 /> Energy Saving Potentials and Air Quality Benefits of Urban HeatIslandMitigation Akbari, Hashem (2005) 76 /> Evaluation of 2004 Toyota

  12. June 2015 Most Viewed Documents for Energy Storage, Conversion, And

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

    Utilization | OSTI, US Dept of Energy, Office of Scientific and Technical Information June 2015 Most Viewed Documents for Energy Storage, Conversion, And Utilization Process Equipment Cost Estimation, Final Report H.P. Loh; Jennifer Lyons; Charles W. White, III (2002) 833 Separation of heavy metals: Removal from industrial wastewaters and contaminated soil Peters, R.W.; Shem, L. (1993) 234 An Improved Method of Manufacturing Corrugated Boxes: Lateral Corrugator Frank C. Murray Ph.D.; , Roman

  13. June 2015 Most Viewed Documents for Fission And Nuclear Technologies |

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

    OSTI, US Dept of Energy, Office of Scientific and Technical Information June 2015 Most Viewed Documents for Fission And Nuclear Technologies Estimation of gas leak rates through very small orifices and channels. [From sealed PuO/sub 2/ containers under accident conditions] Bomelburg, H.J. (1977) 305 System Definition and Analysis: Power Plant Design and Layout NONE (1996) 296 Stress analysis and evaluation of a rectangular pressure vessel. [For equipment for sampling Hanford tank radwaste]

  14. Most Viewed Documents for Energy Storage, Conversion, and Utilization:

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

    December 2014 | OSTI, US Dept of Energy, Office of Scientific and Technical Information Most Viewed Documents for Energy Storage, Conversion, and Utilization: December 2014 Process Equipment Cost Estimation, Final Report H.P. Loh; Jennifer Lyons; Charles W. White, III (2002) 322 Energy Saving Potentials and Air Quality Benefits of Urban HeatIslandMitigation Akbari, Hashem (2005) 107 Separation of heavy metals: Removal from industrial wastewaters and contaminated soil Peters, R.W.; Shem, L.

  15. Most Viewed Documents for Environmental Sciences: December 2014 | OSTI, US

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

    Dept of Energy, Office of Scientific and Technical Information Most Viewed Documents for Environmental Sciences: December 2014 Separation of heavy metals: Removal from industrial wastewaters and contaminated soil Peters, R.W.; Shem, L. (1993) 107 Improved Magnus` form approximation of saturation vapor pressure Alduchov, O.A.; Eskridge, R.E. [National Oceanic and Atmospheric Administration, Asheville, NC (United States). National Climatic Data Center] (1997) 50 Statistical methods for

  16. Most Viewed Documents for Fission and Nuclear Technologies: December 2014 |

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

    OSTI, US Dept of Energy, Office of Scientific and Technical Information Most Viewed Documents for Fission and Nuclear Technologies: December 2014 Stress analysis and evaluation of a rectangular pressure vessel. [For equipment for sampling Hanford tank radwaste] Rezvani, M.A.; Ziada, H.H. (Westinghouse Hanford Co., Richland, WA (United States)); Shurrab, M.S. (Westinghouse Savannah River Co., Aiken, SC (United States)) (1992) 67 Behavior of spent nuclear fuel in water pool storage Johnson,

  17. Most Viewed Documents for Mathematics and Computing: December 2014 | OSTI,

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    US Dept of Energy, Office of Scientific and Technical Information Most Viewed Documents for Mathematics and Computing: December 2014 Process Equipment Cost Estimation, Final Report H.P. Loh; Jennifer Lyons; Charles W. White, III (2002) 322 Levenberg--Marquardt algorithm: implementation and theory More, J.J. (1977) 64 A comparison of risk assessment techniques from qualitative to quantitative Altenbach, T.J. (1995) 51 Lecture notes for introduction to safety and health Biele, F. (1992) 50

  18. Most Viewed Documents for Renewable Energy Sources: December 2014 | OSTI,

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

    US Dept of Energy, Office of Scientific and Technical Information Most Viewed Documents for Renewable Energy Sources: December 2014 Chapter 11. Heat Exchangers Rafferty, Kevin D.; Culver, Gene (1998) 339 Generalized displacement correlation method for estimating stress intensity factors Fu, P; Johnson, S M; Settgast, R R; Carrigan, C R (2011) 107 Seventh Edition Fuel Cell Handbook NETL (2004) 96 Advanced Electric Submersible Pump Design Tool for Geothermal Applications Xuele Qi; Norman

  19. March 2014 Most Viewed Documents for Energy Storage, Conversion, And

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    Utilization | OSTI, US Dept of Energy, Office of Scientific and Technical Information 4 Most Viewed Documents for Energy Storage, Conversion, And Utilization Science Subject Feed Process Equipment Cost Estimation, Final Report H.P. Loh; Jennifer Lyons; Charles W. White, III (2002) 291 /> Energy Saving Potentials and Air Quality Benefits of Urban HeatIslandMitigation Akbari, Hashem (2005) 85 /> Seventh Edition Fuel Cell Handbook NETL (2004) 68 /> Separation of heavy metals: Removal

  20. March 2015 Most Viewed Documents for Energy Storage, Conversion, And

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

    Utilization | OSTI, US Dept of Energy, Office of Scientific and Technical Information 5 Most Viewed Documents for Energy Storage, Conversion, And Utilization Process Equipment Cost Estimation, Final Report H.P. Loh; Jennifer Lyons; Charles W. White, III (2002) 1019 Separation of heavy metals: Removal from industrial wastewaters and contaminated soil Peters, R.W.; Shem, L. (1993) 229 Energy Saving Potentials and Air Quality Benefits of Urban HeatIslandMitigation Akbari, Hashem (2005) 218 An

  1. March 2015 Most Viewed Documents for Fission And Nuclear Technologies |

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

    OSTI, US Dept of Energy, Office of Scientific and Technical Information 5 Most Viewed Documents for Fission And Nuclear Technologies Stress analysis and evaluation of a rectangular pressure vessel. [For equipment for sampling Hanford tank radwaste] Rezvani, M.A.; Ziada, H.H. (Westinghouse Hanford Co., Richland, WA (United States)); Shurrab, M.S. (Westinghouse Savannah River Co., Aiken, SC (United States)) (1992) 223 Estimation of gas leak rates through very small orifices and channels. [From

  2. BetterBuildings Network View | February 19, 2014

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

    Buildings Network View | February 2014 News From the Field Residential Network Builds on Better Buildings Neighborhood Program Legacy The Better Buildings Residential Network is continuing the legacy of the Better Buildings Neighborhood Program with a commitment to accelerating the pace of energy upgrades in American homes. Currently, the Residential Network has more than 60 members from the United States and Canada that represent a broad range of energy efficiency stakeholders. The Residential

  3. Turbine Imaging Technology Assessment

    SciTech Connect (OSTI)

    Moursund, Russell A.; Carlson, Thomas J.

    2004-12-31

    The goal of this project was to identify and evaluate imaging alternatives for observing the behavior of juvenile fish within an operating Kaplan turbine unit with a focus on methods to quantify fish injury mechanisms inside an operating turbine unit. Imaging methods are particularly needed to observe the approach and interaction of fish with turbine structural elements. This evaluation documents both the opportunities and constraints for observing juvenile fish at specific locations during turbine passage. The information may be used to acquire the scientific knowledge to make structural improvements and create opportunities for industry to modify turbines and improve fish passage conditions.

  4. Magnetic imager and method

    DOE Patents [OSTI]

    Powell, J.; Reich, M.; Danby, G.

    1997-07-22

    A magnetic imager includes a generator for practicing a method of applying a background magnetic field over a concealed object, with the object being effective to locally perturb the background field. The imager also includes a sensor for measuring perturbations of the background field to detect the object. In one embodiment, the background field is applied quasi-statically. And, the magnitude or rate of change of the perturbations may be measured for determining location, size, and/or condition of the object. 25 figs.

  5. Magnetic imager and method

    DOE Patents [OSTI]

    Powell, James (Shoreham, NY); Reich, Morris (Kew Garden Hills, NY); Danby, Gordon (Wading River, NY)

    1997-07-22

    A magnetic imager 10 includes a generator 18 for practicing a method of applying a background magnetic field over a concealed object, with the object being effective to locally perturb the background field. The imager 10 also includes a sensor 20 for measuring perturbations of the background field to detect the object. In one embodiment, the background field is applied quasi-statically. And, the magnitude or rate of change of the perturbations may be measured for determining location, size, and/or condition of the object.

  6. Characterization of beam dynamics in the APS injector rings using time-resolved imaging techniques

    SciTech Connect (OSTI)

    Yang, B.X.; Lumpkin, A.H.; Borland, M.

    1997-06-01

    Images taken with streak cameras and gated intensified cameras with both time (longitudinal) and spatial (transverse) resolution reveal a wealth of information about circular accelerators. The authors illustrate a novel technique by a sequence of dual-sweep streak camera images taken at a high dispersion location in the booster synchrotron, where the horizontal coordinate is strongly correlated with the particle energy and the {open_quotes}top-view{close_quotes} of the beam gives a good approximation to the particle density distribution in the longitudinal phase space. A sequence of top-view images taken fight after injection clearly shows the beam dynamics in the phase space. We report another example from the positron accumulator ring for the characterization of its beam compression bunching with the 12th harmonic rf.

  7. New Report Shows Trend Toward Larger Offshore Wind Systems

    Broader source: Energy.gov [DOE]

    The Energy Department released a new report showing progress for the U.S. offshore wind energy market in 2012, including 11 commercial-scale U.S. projects reaching an advanced stage of development.

  8. Time-Encoded Imagers.

    SciTech Connect (OSTI)

    Marleau, Peter; Brubaker, Erik

    2014-11-01

    This report provides a short overview of the DNN R&D funded project, Time-Encoded Imagers. The project began in FY11 and concluded in FY14. The Project Description below provides the overall motivation and objectives for the project as well as a summary of programmatic direction. It is followed by a short description of each task and the resulting deliverables.

  9. Research on a logarithmically bent Laue crystal analyzer for X-ray monochromatic backlight imaging

    SciTech Connect (OSTI)

    Wu, Yufen; Xiao, Shali; Lu, Jian; Liu, Lifeng; Yang, Qingguo; Huang, Xianbin

    2013-07-15

    A new logarithmically bent Laue imaging crystal analyzer (LBLICA) was proposed to obtain the monochromatic image of plasmas and exhibited a great potential for application in the Inertial Confinement Fusion experiment over a large field of view (FOV) and with a high spatial resolution. The imaging geometry of the LBLICA has been discussed. According to the Bragg condition and the equation of the logarithmic spiral, the key image parameters of the crystal analyzer, including the system magnification, the spatial resolution, and the FOV, have been analyzed theoretically. An experiment has been performed with a Cu target X-ray tube as a backlighter to backlight a mesh grid consisting of 50-?m Cu wires, and the monochromatic image of the grid has been obtained with a spatial resolution of approximately 30 ?m.

  10. Imaging agents for in vivo magnetic resonance and scintigraphic imaging

    DOE Patents [OSTI]

    Engelstad, B.L.; Raymond, K.N.; Huberty, J.P.; White, D.L.

    1991-04-23

    Methods are provided for in vivo magnetic resonance imaging and/or scintigraphic imaging of a subject using chelated transition metal and lanthanide metal complexes. Novel ligands for these complexes are provided. No Drawings

  11. Imaging agents for in vivo magnetic resonance and scintigraphic imaging

    DOE Patents [OSTI]

    Engelstad, Barry L. (Orinda, CA); Raymond, Kenneth N. (Berkeley, CA); Huberty, John P. (Corte Madera, CA); White, David L. (Oakland, CA)

    1991-01-01

    Methods are provided for in vivo magnetic resonance imaging and/or scintigraphic imaging of a subject using chelated transition metal and lanthanide metal complexes. Novel ligands for these complexes are provided.

  12. Automating Shallow Seismic Imaging

    SciTech Connect (OSTI)

    Steeples, Don W.

    2004-12-09

    This seven-year, shallow-seismic reflection research project had the aim of improving geophysical imaging of possible contaminant flow paths. Thousands of chemically contaminated sites exist in the United States, including at least 3,700 at Department of Energy (DOE) facilities. Imaging technologies such as shallow seismic reflection (SSR) and ground-penetrating radar (GPR) sometimes are capable of identifying geologic conditions that might indicate preferential contaminant-flow paths. Historically, SSR has been used very little at depths shallower than 30 m, and even more rarely at depths of 10 m or less. Conversely, GPR is rarely useful at depths greater than 10 m, especially in areas where clay or other electrically conductive materials are present near the surface. Efforts to image the cone of depression around a pumping well using seismic methods were only partially successful (for complete references of all research results, see the full Final Technical Report, DOE/ER/14826-F), but peripheral results included development of SSR methods for depths shallower than one meter, a depth range that had not been achieved before. Imaging at such shallow depths, however, requires geophone intervals of the order of 10 cm or less, which makes such surveys very expensive in terms of human time and effort. We also showed that SSR and GPR could be used in a complementary fashion to image the same volume of earth at very shallow depths. The primary research focus of the second three-year period of funding was to develop and demonstrate an automated method of conducting two-dimensional (2D) shallow-seismic surveys with the goal of saving time, effort, and money. Tests involving the second generation of the hydraulic geophone-planting device dubbed the ''Autojuggie'' showed that large numbers of geophones can be placed quickly and automatically and can acquire high-quality data, although not under rough topographic conditions. In some easy-access environments, this device could make SSR surveying considerably more efficient and less expensive, particularly when geophone intervals of 25 cm or less are required. The most recent research analyzed the difference in seismic response of the geophones with variable geophone spike length and geophones attached to various steel media. Experiments investigated the azimuthal dependence of the quality of data relative to the orientation of the rigidly attached geophones. Other experiments designed to test the hypothesis that the data are being amplified in much the same way that an organ pipe amplifies sound have so far proved inconclusive. Taken together, the positive results show that SSR imaging within a few meters of the earth's surface is possible if the geology is suitable, that SSR imaging can complement GPR imaging, and that SSR imaging could be made significantly more cost effective, at least in areas where the topography and the geology are favorable. Increased knowledge of the Earth's shallow subsurface through non-intrusive techniques is of potential benefit to management of DOE facilities. Among the most significant problems facing hydrologists today is the delineation of preferential permeability paths in sufficient detail to make a quantitative analysis possible. Aquifer systems dominated by fracture flow have a reputation of being particularly difficult to characterize and model. At chemically contaminated sites, including U.S. Department of Energy (DOE) facilities and others at Department of Defense (DOD) installations worldwide, establishing the spatial extent of the contamination, along with the fate of the contaminants and their transport-flow directions, is essential to the development of effective cleanup strategies. Detailed characterization of the shallow subsurface is important not only in environmental, groundwater, and geotechnical engineering applications, but also in neotectonics, mining geology, and the analysis of petroleum reservoir analogs. Near-surface seismology is in the vanguard of non-intrusive approaches to increase knowledge of the shallow subsurface; our work is a significant departure from conventional seismic-survey field procedures.

  13. RW Aur A FROM THE X-WIND POINT OF VIEW: GENERAL FEATURES

    SciTech Connect (OSTI)

    Liu, Chun-Fan; Shang, Hsien

    2012-12-20

    In this paper, the RW Aur A microjet is studied from the point of view of X-wind models. The archived Hubble Space Telescope/STIS spectra of the optical forbidden lines [O I], [S II], and [N II] from RW Aur A, taken in Cycle 8 with seven parallel slits along the jet axis, spaced at 0.''07 apart, were analyzed. Images, position-velocity diagrams, and line ratios among the species were constructed, and compared with synthetic observations generated by selected solutions of the X-wind. Prominent features arising in a steady-state X-wind could be identified within the convolved images and position-velocity diagrams, including FWHM and high-velocity peaks on both of the redshifted and blueshifted jets. The well-known asymmetric velocity profiles of the opposite jets were built into the selected models. We discuss model selections within the existing uncertainties of the stellar parameters and inclination angle of the system. In this framework, the mass-loss rates that were inferred to be decreasing along the jet axis in the literature are the results of slowly decreasing excitation conditions and electron density profiles. Despite the apparent asymmetry in the terminal velocities, line intensities and mass-loss rates, the average linear momenta from the opposite sides of the jet are actually balanced. These previously hard-to-explain features of the asymmetric RW Aur A jet system can now be interpreted in a different but self-consistent manner within the X-wind framework.

  14. Imaging doppler lidar for wind turbine wake profiling

    DOE Patents [OSTI]

    Bossert, David J.

    2015-11-19

    An imaging Doppler lidar (IDL) enables the measurement of the velocity distribution of a large volume, in parallel, and at high spatial resolution in the wake of a wind turbine. Because the IDL is non-scanning, it can be orders of magnitude faster than conventional coherent lidar approaches. Scattering can be obtained from naturally occurring aerosol particles. Furthermore, the wind velocity can be measured directly from Doppler shifts of the laser light, so the measurement can be accomplished at large standoff and at wide fields-of-view.

  15. September 2013 Most Viewed Documents for Environmental Sciences | OSTI, US

    Office of Scientific and Technical Information (OSTI)

    Dept of Energy, Office of Scientific and Technical Information September 2013 Most Viewed Documents for Environmental Sciences Science Subject Feed Building a secondary containment system Broder, M.F. (1994) 59 /> Separation of heavy metals: Removal from industrial wastewaters and contaminated soil Peters, R.W.; Shem, L. (1993) 45 /> Test of a magnetic device for the amelioration of scale formation at Treatment Facility D Krauter, P.W., Harrar, J.E., Orloff, S.P., Bahowick, S.M. (1996)

  16. September 2013 Most Viewed Documents for Power Generation And Distribution

    Office of Scientific and Technical Information (OSTI)

    | OSTI, US Dept of Energy, Office of Scientific and Technical Information September 2013 Most Viewed Documents for Power Generation And Distribution Science Subject Feed Electric power high-voltage transmission lines: Design options, cost, and electric and magnetic field levels Stoffel, J.B.; Pentecost, E.D.; Roman, R.D.; Traczyk, P.A. (1994) 200 /> Wet cooling towers: rule-of-thumb design and simulation Leeper, S.A. (1981) 103 /> ASPEN Plus Simulation of CO2 Recovery Process Charles

  17. September 2015 Most Viewed Documents for Power Generation And Distribution

    Office of Scientific and Technical Information (OSTI)

    | OSTI, US Dept of Energy, Office of Scientific and Technical Information September 2015 Most Viewed Documents for Power Generation And Distribution Electric power high-voltage transmission lines: Design options, cost, and electric and magnetic field levels Stoffel, J.B.; Pentecost, E.D.; Roman, R.D.; Traczyk, P.A. (1994) 700 Wet cooling towers: rule-of-thumb design and simulation Leeper, S.A. (1981) 190 Load flow analysis: Base cases, data, diagrams, and results Portante, E.C.; Kavicky,

  18. April 2013 Most Viewed Documents for Energy Storage, Conversion, And

    Office of Scientific and Technical Information (OSTI)

    Utilization | OSTI, US Dept of Energy, Office of Scientific and Technical Information April 2013 Most Viewed Documents for Energy Storage, Conversion, And Utilization Science Subject Feed Seventh Edition Fuel Cell Handbook NETL (2004) 628 /> Continuously variable transmissions: theory and practice Beachley, N.H.; Frank, A.A. (null) 205 /> A study of lead-acid battery efficiency near top-of-charge and the impact on PV system design Stevens, J.W.; Corey, G.P. (1996) 173 /> Energy

  19. April 2013 Most Viewed Documents for Fission And Nuclear Technologies |

    Office of Scientific and Technical Information (OSTI)

    OSTI, US Dept of Energy, Office of Scientific and Technical Information April 2013 Most Viewed Documents for Fission And Nuclear Technologies Science Subject Feed Behavior of spent nuclear fuel in water pool storage Johnson, A.B. Jr. (null) 298 /> Estimation of gas leak rates through very small orifices and channels. [From sealed PuO/sub 2/ containers under accident conditions] Bomelburg, H.J. (null) 292 /> Graphite design handbook Ho, F.H. (1988) 216 /> System Definition and

  20. April 2013 Most Viewed Documents for Power Generation And Distribution |

    Office of Scientific and Technical Information (OSTI)

    OSTI, US Dept of Energy, Office of Scientific and Technical Information April 2013 Most Viewed Documents for Power Generation And Distribution Electric power high-voltage transmission lines: Design options, cost, and electric and magnetic field levels Stoffel, J.B.; Pentecost, E.D.; Roman, R.D.; Traczyk, P.A. (1994) 719 Seventh Edition Fuel Cell Handbook NETL (2004) 628 ASPEN Plus Simulation of CO2 Recovery Process Charles W. White III (2003) 343 Wet cooling towers: rule-of-thumb design and

  1. January 2013 Most Viewed Documents for Fission And Nuclear Technologies |

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

    OSTI, US Dept of Energy, Office of Scientific and Technical Information January 2013 Most Viewed Documents for Fission And Nuclear Technologies Laboratory studies of shear/leach processing of zircaloy clad metallic uranium reactor fuel Swanson, J.L.; Bray, L.A.; Kjarmo, H.E.; Ryan, J.L.; Matsuzaki, C.L.; Pitman, S.G.; Haberman, J.H. Working session 3: Tubing integrity Cueto-Felgueroso, C. [Tecnatom, S.A., San Sebastian de los Reyes, Madrid (Spain)]; Strosnider, J. [NRC, Washington, DC

  2. Ground control failures. A pictorial view of case studies

    SciTech Connect (OSTI)

    Peng, S.S.

    2007-07-01

    The book shows, in pictorial views, many forms and/or stages of types of failures in mines, for instance, cutter, roof falls, and cribs. In each case, the year of occurrence is stated in the beginning so that the environment or technological background under which it occurred are reflected. The narrative than begins with the mining and geological conditions, followed by a description of the ground control problems and recommended solutions and results, if any. The sections cover failure of pillars, roof falls, longwall, roof bolting, multiple-seam mining, floor heave, longwall, flooding and weathering of coal, old workings, and shortwall and thin-seam plow longwall.

  3. July 2013 Most Viewed Documents for Energy Storage, Conversion, And

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

    Utilization | OSTI, US Dept of Energy, Office of Scientific and Technical Information July 2013 Most Viewed Documents for Energy Storage, Conversion, And Utilization Science Subject Feed Process Equipment Cost Estimation, Final Report H.P. Loh; Jennifer Lyons; Charles W. White, III (2002) 567 /> A study of lead-acid battery efficiency near top-of-charge and the impact on PV system design Stevens, J.W.; Corey, G.P. (1996) 142 /> Seventh Edition Fuel Cell Handbook NETL (2004) 133 />

  4. July 2013 Most Viewed Documents for Fission And Nuclear Technologies |

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

    OSTI, US Dept of Energy, Office of Scientific and Technical Information July 2013 Most Viewed Documents for Fission And Nuclear Technologies Science Subject Feed Estimation of gas leak rates through very small orifices and channels. [From sealed PuO/sub 2/ containers under accident conditions] Bomelburg, H.J. (1977) 286 /> Graphite design handbook Ho, F.H. (1988) 136 /> Behavior of spent nuclear fuel in water pool storage Johnson, A.B. Jr. (1977) 123 /> Stress analysis and

  5. July 2013 Most Viewed Documents for Power Generation And Distribution |

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

    OSTI, US Dept of Energy, Office of Scientific and Technical Information July 2013 Most Viewed Documents for Power Generation And Distribution Science Subject Feed Electric power high-voltage transmission lines: Design options, cost, and electric and magnetic field levels Stoffel, J.B.; Pentecost, E.D.; Roman, R.D.; Traczyk, P.A. (1994) 535 /> ASPEN Plus Simulation of CO2 Recovery Process Charles W. White III (2003) 165 /> Wet cooling towers: rule-of-thumb design and simulation Leeper,

  6. June 2014 Most Viewed Documents for Fission And Nuclear Technologies |

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

    OSTI, US Dept of Energy, Office of Scientific and Technical Information June 2014 Most Viewed Documents for Fission And Nuclear Technologies Behavior of spent nuclear fuel in water pool storage Johnson, A.B. Jr. (1977) 78 Estimation of gas leak rates through very small orifices and channels. [From sealed PuO/sub 2/ containers under accident conditions] Bomelburg, H.J. (1977) 71 Review of thorium fuel reprocessing experience Brooksbank, R.E.; McDuffee, W.T.; Rainey, R.H. (1978) 70 Stress

  7. June 2014 Most Viewed Documents for Power Generation And Distribution |

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

    OSTI, US Dept of Energy, Office of Scientific and Technical Information June 2014 Most Viewed Documents for Power Generation And Distribution Science Subject Feed Seventh Edition Fuel Cell Handbook NETL (2004) 118 /> Electric power high-voltage transmission lines: Design options, cost, and electric and magnetic field levels Stoffel, J.B.; Pentecost, E.D.; Roman, R.D.; Traczyk, P.A. (1994) 89 /> ASPEN Plus Simulation of CO2 Recovery Process Charles W. White III (2003) 85 /> Wet

  8. June 2015 Most Viewed Documents for Power Generation And Distribution |

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

    OSTI, US Dept of Energy, Office of Scientific and Technical Information June 2015 Most Viewed Documents for Power Generation And Distribution Electric power high-voltage transmission lines: Design options, cost, and electric and magnetic field levels Stoffel, J.B.; Pentecost, E.D.; Roman, R.D.; Traczyk, P.A. (1994) 504 Wet cooling towers: rule-of-thumb design and simulation Leeper, S.A. (1981) 240 ASPEN Plus Simulation of CO2 Recovery Process Charles W. White III (2003) 160 Load flow

  9. Consumer Views on Transportation and Energy (Third Edition)

    SciTech Connect (OSTI)

    Kubik, M.

    2006-01-01

    This report has been assembled to provide the U.S. Department of Energy's (DOE's) Office of Energy Efficiency and Renewable Energy (EERE) with an idea of how the American public views various transportation, energy, and environmental issues. The data presented in this report have been drawn from multiple sources: surveys conducted by the Opinion Research Corporation (ORC) for the National Renewable Energy Laboratory (NREL) that are commissioned and funded by EERE, Gallup polls, news organization polls, surveys conducted by independent groups and academic institutions, and other sources.

  10. Most Viewed Documents for Power Generation and Distribution: December 2014

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

    | OSTI, US Dept of Energy, Office of Scientific and Technical Information Most Viewed Documents for Power Generation and Distribution: December 2014 Electric power high-voltage transmission lines: Design options, cost, and electric and magnetic field levels Stoffel, J.B.; Pentecost, E.D.; Roman, R.D.; Traczyk, P.A. (1994) 133 Seventh Edition Fuel Cell Handbook NETL (2004) 96 ASPEN Plus Simulation of CO2 Recovery Process Charles W. White III (2003) 84 Load flow analysis: Base cases, data,

  11. March 2014 Most Viewed Documents for Fission And Nuclear Technologies |

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

    OSTI, US Dept of Energy, Office of Scientific and Technical Information 4 Most Viewed Documents for Fission And Nuclear Technologies Science Subject Feed Behavior of spent nuclear fuel in water pool storage Johnson, A.B. Jr. (1977) 72 /> Peer-review study of the draft handbook for human-reliability analysis with emphasis on nuclear-power-plant applications, NUREG/CR-1278 Brune, R.L.; Weinstein, M.; Fitzwater, M.E. (1983) 67 /> Stress analysis and evaluation of a rectangular pressure

  12. March 2014 Most Viewed Documents for Power Generation And Distribution |

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

    OSTI, US Dept of Energy, Office of Scientific and Technical Information 4 Most Viewed Documents for Power Generation And Distribution Science Subject Feed ASPEN Plus Simulation of CO2 Recovery Process Charles W. White III (2003) 112 /> Electric power high-voltage transmission lines: Design options, cost, and electric and magnetic field levels Stoffel, J.B.; Pentecost, E.D.; Roman, R.D.; Traczyk, P.A. (1994) 83 /> Seventh Edition Fuel Cell Handbook NETL (2004) 68 /> Load flow

  13. March 2015 Most Viewed Documents for Power Generation And Distribution |

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

    OSTI, US Dept of Energy, Office of Scientific and Technical Information 5 Most Viewed Documents for Power Generation And Distribution Electric power high-voltage transmission lines: Design options, cost, and electric and magnetic field levels Stoffel, J.B.; Pentecost, E.D.; Roman, R.D.; Traczyk, P.A. (1994) 317 ASPEN Plus Simulation of CO2 Recovery Process Charles W. White III (2003) 254 Wet cooling towers: rule-of-thumb design and simulation Leeper, S.A. (1981) 234 Load flow analysis: Base

  14. T-704: RSA enVision Lets Remote Users View Files and Remote Authentica...

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

    RSA enVision Lets Remote Users View Files and Remote Authenticated Users Obtain Password T-704: RSA enVision Lets Remote Users View Files and Remote Authenticated Users Obtain...

  15. DOE Tour of Zero: The Isler Residence by Clifton View Homes ...

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

    Isler Residence by Clifton View Homes DOE Tour of Zero: The Isler Residence by Clifton View Homes Addthis 1 of 23 This custom home built on Whidbey Island in Washington state by...

  16. Devices, systems, and methods for imaging

    DOE Patents [OSTI]

    Appleby, David; Fraser, Iain; Watson, Scott

    2008-04-15

    Certain exemplary embodiments comprise a system, which can comprise an imaging plate. The imaging plate can be exposable by an x-ray source. The imaging plate can be configured to be used in digital radiographic imaging. The imaging plate can comprise a phosphor-based image storage device configured to convert an image stored therein into light.

  17. SMB 2014 - Imaging Summer School

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

    2014 SMB Imaging Summer School July 11-15 2014 Apply Agenda 2014 SMB Agenda Maps & Directions Visiting SLAC The 1st SSRL SXRMI (Synchrotron X-ray MicroXAS Imaging) School will...

  18. Multimode imaging device

    DOE Patents [OSTI]

    Mihailescu, Lucian; Vetter, Kai M

    2013-08-27

    Apparatus for detecting and locating a source of gamma rays of energies ranging from 10-20 keV to several MeV's includes plural gamma ray detectors arranged in a generally closed extended array so as to provide Compton scattering imaging and coded aperture imaging simultaneously. First detectors are arranged in a spaced manner about a surface defining the closed extended array which may be in the form a circle, a sphere, a square, a pentagon or higher order polygon. Some of the gamma rays are absorbed by the first detectors closest to the gamma source in Compton scattering, while the photons that go unabsorbed by passing through gaps disposed between adjacent first detectors are incident upon second detectors disposed on the side farthest from the gamma ray source, where the first spaced detectors form a coded aperture array for two or three dimensional gamma ray source detection.

  19. Imaging based refractometers

    DOE Patents [OSTI]

    Baba, Justin S.

    2015-11-24

    Refractometers for simultaneously measuring refractive index of a sample over a range or wavelengths of light include dispersive and focusing optical systems. An optical beam including the rang of wavelengths is spectrally spread along a first axis and focused along a second axis so as to be incident to an interface between the sample and a prism at a range of angles of incidence including a critical angle for at least one wavelength. In some cases, the prism can have a triangle, parallelogram, trapezoid, or other shape. In some cases, the optical beam can be reflected off of multiple interfaces between the prism and the sample. An imaging detector is situated to receive the spectrally spread and focused light from the interface and form an image corresponding to angle of incidence as a function of wavelength. One or more critical angles are indentified and corresponding refractive indices are determined.

  20. Wake Imaging Measurement System

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

    Wake Imaging Measurement System - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Fuel Cycle Defense Waste Management Programs

  1. EC Image Library

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

    Image Library - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Fuel Cycle Defense Waste Management Programs Advanced Nuclear

  2. Medical gamma ray imaging

    DOE Patents [OSTI]

    Osborne, Louis S. (Lexington, MA); Lanza, Richard C. (Brookline, MA)

    1984-01-01

    A method and apparatus for determining the distribution of a position-emitting radioisotope into an object, the apparatus consisting of a wire mesh radiation converter, an ionizable gas for propagating ionization events caused by electrodes released by the converter, a drift field, a spatial position detector and signal processing circuitry for correlating near-simultaneous ionization events and determining their time differences, whereby the position sources of back-to-back collinear radiation can be located and a distribution image constructed.

  3. Compressive passive millimeter wave imager

    DOE Patents [OSTI]

    Gopalsami, Nachappa; Liao, Shaolin; Elmer, Thomas W; Koehl, Eugene R; Heifetz, Alexander; Raptis, Apostolos C

    2015-01-27

    A compressive scanning approach for millimeter wave imaging and sensing. A Hadamard mask is positioned to receive millimeter waves from an object to be imaged. A subset of the full set of Hadamard acquisitions is sampled. The subset is used to reconstruct an image representing the object.

  4. WIPP - Passive Institutional Controls (PICs) Images

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

    PICs Images Passive Institutional Controls PICs Images Permanent Markers | Images from Monument Survey Permanent Markers Earthen Berm The "big picture" Repository footprint Buried...

  5. BT Imaging Pty Ltd | Open Energy Information

    Open Energy Info (EERE)

    Jump to: navigation, search Name: BT Imaging Pty Ltd Place: Sydney, New South Wales, Australia Zip: NSW 2000 Product: BT Imaging designs and develops Luminescence Imaging Systems...

  6. Dose optimization in cardiac x-ray imaging

    SciTech Connect (OSTI)

    Gislason-Lee, Amber J.; McMillan, Catherine; Cowen, Arnold R.; Davies, Andrew G.

    2013-09-15

    Purpose: The aim of this research was to optimize x-ray image quality to dose ratios in the cardiac catheterization laboratory. This study examined independently the effects of peak x-ray tube voltage (kVp), copper (Cu), and gadolinium (Gd) x-ray beam filtration on the image quality to radiation dose balance for adult patient sizes.Methods: Image sequences of polymethyl methacrylate (PMMA) phantoms representing two adult patient sizes were captured using a modern flat panel detector based x-ray imaging system. Tin and copper test details were used to simulate iodine-based contrast medium and stents/guide wires respectively, which are used in clinical procedures. Noise measurement for a flat field image and test detail contrast were used to calculate the contrast to noise ratio (CNR). Entrance surface dose (ESD) and effective dose measurements were obtained to calculate the figure of merit (FOM), CNR{sup 2}/dose. This FOM determined the dose efficiency of x-ray spectra investigated. Images were captured with 0.0, 0.1, 0.25, 0.4, and 0.9 mm Cu filtration and with a range of gadolinium oxysulphide (Gd{sub 2}O{sub 2}S) filtration.Results: Optimum x-ray spectra were the same for the tin and copper test details. Lower peak tube voltages were generally favored. For the 20 cm phantom, using 2 Lanex Fast Back Gd{sub 2}O{sub 2}S screens as x-ray filtration at 65 kVp provided the highest FOM considering ESD and effective dose. Considering ESD, this FOM was only marginally larger than that from using 0.4 mm Cu at 65 kVp. For the 30 cm phantom, using 0.25 mm copper filtration at 80 kVp was most optimal; considering effective dose the FOM was highest with no filtration at 65 kVp.Conclusions: These settings, adjusted for x-ray tube loading limits and clinically acceptable image quality, should provide a useful option for optimizing patient dose to image quality in cardiac x-ray imaging. The same optimal x-ray beam spectra were found for both the tin and copper details, suggesting that iodine contrast based imaging and visualization of interventional devices could potentially be optimized for dose using similar x-ray beam spectra.

  7. Molecular structure in soil humic substances: The new view

    SciTech Connect (OSTI)

    Sutton, Rebecca; Sposito, Garrison

    2005-04-21

    A critical examination of published data obtained primarily from recent nuclear magnetic resonance spectroscopy, X-ray absorption near-edge structure spectroscopy, electrospray ionization-mass spectrometry, and pyrolysis studies reveals an evolving new view of the molecular structure of soil humic substances. According to the new view, humic substances are collections of diverse, relatively low molecular mass components forming dynamic associations stabilized by hydrophobic interactions and hydrogen bonds. These associations are capable of organizing into micellar structures in suitable aqueous environments. Humic components display contrasting molecular motional behavior and may be spatially segregated on a scale of nanometers. Within this new structural context, these components comprise any molecules intimately associated with a humic substance, such that they cannot be separated effectively by chemical or physical methods. Thus biomolecules strongly bound within humic fractions are by definition humic components, a conclusion that necessarily calls into question key biogeochemical pathways traditionally thought to be required for the formation of humic substances. Further research is needed to elucidate the intermolecular interactions that link humic components into supramolecular associations and to establish the pathways by which these associations emerge from the degradation of organic litter.

  8. Fast stereoscopic images with ray-traced volume rendering

    SciTech Connect (OSTI)

    Adelson, S.J.; Hansen, C.D.

    1994-05-01

    One of the drawbacks of standard volume rendering techniques is that is it often difficult to comprehend the three-dimensional structure of the volume from a single frame; this is especially true in cases where there is no solid surface. Generally, several frames must be generated and viewed sequentially, using motion parallax to relay depth. Another option is to generate a single spectroscopic pair, resulting in clear and unambiguous depth information in both static and moving images. Methods have been developed which take advantage of the coherence between the two halves of a stereo pair for polygon rendering and ray-tracing, generating the second half of the pair in significantly less time than that required to completely render a single image. This paper reports the results of implementing these techniques with parallel ray-traced volume rendering. In tests with different data types, the time savings is in the range of 70--80%.

  9. A COMPREHENSIVE VIEW OF A STRONGLY LENSED PLANCK-ASSOCIATED SUBMILLIMETER GALAXY

    SciTech Connect (OSTI)

    Fu Hai; Cooray, A.; Jullo, E.; Bussmann, R. S.; Ivison, R. J.; Perez-Fournon, I.; Djorgovski, S. G.; Scoville, N.; Yan, L.; Riechers, D. A.; Bradford, M.; Aguirre, J.; Auld, R.; Baes, M.; Baker, A. J.; Cava, A.; Clements, D. L.; Dannerbauer, H.; Dariush, A.; De Zotti, G.; and others

    2012-07-10

    We present high-resolution maps of stars, dust, and molecular gas in a strongly lensed submillimeter galaxy (SMG) at z = 3.259. HATLAS J114637.9-001132 is selected from the Herschel-Astrophysical Terahertz Large Area Survey (H-ATLAS) as a strong lens candidate mainly based on its unusually high 500 {mu}m flux density ({approx}300 mJy). It is the only high-redshift Planck detection in the 130 deg{sup 2} H-ATLAS Phase-I area. Keck Adaptive Optics images reveal a quadruply imaged galaxy in the K band while the Submillimeter Array and the Jansky Very Large Array show doubly imaged 880 {mu}m and CO(1{yields}0) sources, indicating differentiated distributions of the various components in the galaxy. In the source plane, the stars reside in three major kpc-scale clumps extended over {approx}1.6 kpc, the dust in a compact ({approx}1 kpc) region {approx}3 kpc north of the stars, and the cold molecular gas in an extended ({approx}7 kpc) disk {approx}5 kpc northeast of the stars. The emissions from the stars, dust, and gas are magnified by {approx}17, {approx}8, and {approx}7 times, respectively, by four lensing galaxies at z {approx} 1. Intrinsically, the lensed galaxy is a warm (T{sub dust} {approx} 40-65 K), hyper-luminous (L{sub IR} {approx} 1.7 Multiplication-Sign 10{sup 13} L{sub Sun }; star formation rate (SFR) {approx}2000 M{sub Sun} yr{sup -1}), gas-rich (M{sub gas}/M{sub baryon} {approx} 70%), young (M{sub stellar}/SFR {approx} 20 Myr), and short-lived (M{sub gas}/SFR {approx} 40 Myr) starburst. With physical properties similar to unlensed z > 2 SMGs, HATLAS J114637.9-001132 offers a detailed view of a typical SMG through a powerful cosmic microscope.

  10. Image registration with uncertainty analysis

    DOE Patents [OSTI]

    Simonson, Katherine M. (Cedar Crest, NM)

    2011-03-22

    In an image registration method, edges are detected in a first image and a second image. A percentage of edge pixels in a subset of the second image that are also edges in the first image shifted by a translation is calculated. A best registration point is calculated based on a maximum percentage of edges matched. In a predefined search region, all registration points other than the best registration point are identified that are not significantly worse than the best registration point according to a predetermined statistical criterion.

  11. Confined Space Imager (CSI) Software

    Energy Science and Technology Software Center (OSTI)

    2013-07-03

    The software provides real-time image capture, enhancement, and display, and sensor control for the Confined Space Imager (CSI) sensor system The software captures images over a Cameralink connection and provides the following image enhancements: camera pixel to pixel non-uniformity correction, optical distortion correction, image registration and averaging, and illumination non-uniformity correction. The software communicates with the custom CSI hardware over USB to control sensor parameters and is capable of saving enhanced sensor images to anmore » external USB drive. The software provides sensor control, image capture, enhancement, and display for the CSI sensor system. It is designed to work with the custom hardware.« less

  12. ParaView Red Blood Cell Tutorial | Argonne Leadership Computing Facility

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

    ParaView Red Blood Cell Tutorial Goals This tutorial is intended to be a hands-on resource for users interested in learning the basic concepts of ParaView. The examples can easily be run on a laptop, using the example data set provided. Tour of ParaView Show range of visualization methods Walk through various visualization techniques, hopefully illustrate how these can apply to your own data. Feel for ParaView "way" Terminology and step-by-step process peculiar to ParaView, which may

  13. Method and apparatus for enhanced sensitivity filmless medical x-ray imaging, including three-dimensional imaging

    DOE Patents [OSTI]

    Parker, S.

    1995-10-24

    A filmless X-ray imaging system includes at least one X-ray source, upper and lower collimators, and a solid-state detector array, and can provide three-dimensional imaging capability. The X-ray source plane is distance z{sub 1} above upper collimator plane, distance z{sub 2} above the lower collimator plane, and distance z{sub 3} above the plane of the detector array. The object to be X-rayed is located between the upper and lower collimator planes. The upper and lower collimators and the detector array are moved horizontally with scanning velocities v{sub 1}, v{sub 2}, v{sub 3} proportional to z{sub 1}, z{sub 2} and z{sub 3}, respectively. The pattern and size of openings in the collimators, and between detector positions is proportional such that similar triangles are always defined relative to the location of the X-ray source. X-rays that pass through openings in the upper collimator will always pass through corresponding and similar openings in the lower collimator, and thence to a corresponding detector in the underlying detector array. Substantially 100% of the X-rays irradiating the object (and neither absorbed nor scattered) pass through the lower collimator openings and are detected, which promotes enhanced sensitivity. A computer system coordinates repositioning of the collimators and detector array, and X-ray source locations. The computer system can store detector array output, and can associate a known X-ray source location with detector array output data, to provide three-dimensional imaging. Detector output may be viewed instantly, stored digitally, and/or transmitted electronically for image viewing at a remote site. 5 figs.

  14. Method and apparatus for enhanced sensitivity filmless medical x-ray imaging, including three-dimensional imaging

    DOE Patents [OSTI]

    Parker, Sherwood

    1995-01-01

    A filmless X-ray imaging system includes at least one X-ray source, upper and lower collimators, and a solid-state detector array, and can provide three-dimensional imaging capability. The X-ray source plane is distance z.sub.1 above upper collimator plane, distance z.sub.2 above the lower collimator plane, and distance z.sub.3 above the plane of the detector array. The object to be X-rayed is located between the upper and lower collimator planes. The upper and lower collimators and the detector array are moved horizontally with scanning velocities v.sub.1, v.sub.2, v.sub.3 proportional to z.sub.1, z.sub.2 and z.sub.3, respectively. The pattern and size of openings in the collimators, and between detector positions is proportional such that similar triangles are always defined relative to the location of the X-ray source. X-rays that pass through openings in the upper collimator will always pass through corresponding and similar openings in the lower collimator, and thence to a corresponding detector in the underlying detector array. Substantially 100% of the X-rays irradiating the object (and neither absorbed nor scattered) pass through the lower collimator openings and are detected, which promotes enhanced sensitivity. A computer system coordinates repositioning of the collimators and detector array, and X-ray source locations. The computer system can store detector array output, and can associate a known X-ray source location with detector array output data, to provide three-dimensional imaging. Detector output may be viewed instantly, stored digitally, and/or transmitted electronically for image viewing at a remote site.

  15. Multiprocessor computing for images

    SciTech Connect (OSTI)

    Cantoni, V. ); Levialdi, S. )

    1988-08-01

    A review of image processing systems developed until now is given, highlighting the weak points of such systems and the trends that have dictated their evolution through the years producing different generations of machines. Each generation may be characterized by the hardware architecture, the programmability features and the relative application areas. The need for multiprocessing hierarchical systems is discussed focusing on pyramidal architectures. Their computational paradigms, their virtual and physical implementation, their programming and software requirements, and capabilities by means of suitable languages, are discussed.

  16. Radiation imaging apparatus

    DOE Patents [OSTI]

    Anger, Hal O. (Berkeley, CA); Martin, Donn C. (Berkeley, CA); Lampton, Michael L. (Berkeley, CA)

    1983-01-01

    A radiation imaging system using a charge multiplier and a position sensitive anode in the form of periodically arranged sets of interconnected anode regions for detecting the position of the centroid of a charge cloud arriving thereat from the charge multiplier. Various forms of improved position sensitive anodes having single plane electrode connections are disclosed. Various analog and digital signal processing systems are disclosed, including systems which use the fast response of microchannel plates, anodes and preamps to perform scintillation pulse height analysis digitally.

  17. Radiation imaging apparatus

    DOE Patents [OSTI]

    Anger, H.O.; Martin, D.C.; Lampton, M.L.

    1983-07-26

    A radiation imaging system using a charge multiplier and a position sensitive anode in the form of periodically arranged sets of interconnected anode regions for detecting the position of the centroid of a charge cloud arriving thereat from the charge multiplier. Various forms of improved position sensitive anodes having single plane electrode connections are disclosed. Various analog and digital signal processing systems are disclosed, including systems which use the fast response of microchannel plates, anodes and preamps to perform scintillation pulse height analysis digitally. 15 figs.

  18. Superconductive imaging surface magnetometer

    DOE Patents [OSTI]

    Overton, Jr., William C.; van Hulsteyn, David B.; Flynn, Edward R.

    1991-01-01

    An improved pick-up coil system for use with Superconducting Quantum Interference Device gradiometers and magnetometers involving the use of superconducting plates near conventional pick-up coil arrangements to provide imaging of nearby dipole sources and to deflect environmental magnetic noise away from the pick-up coils. This allows the practice of gradiometry and magnetometry in magnetically unshielded environments. One embodiment uses a hemispherically shaped superconducting plate with interior pick-up coils, allowing brain wave measurements to be made on human patients. another embodiment using flat superconducting plates could be used in non-destructive evaluation of materials.

  19. SU-E-J-134: An Augmented-Reality Optical Imaging System for Accurate Breast Positioning During Radiotherapy

    SciTech Connect (OSTI)

    Nazareth, D; Malhotra, H; French, S; Hoffmann, K; Merrow, C

    2014-06-01

    Purpose: Breast radiotherapy, particularly electronic compensation, may involve large dose gradients and difficult patient positioning problems. We have developed a simple self-calibrating augmented-reality system, which assists in accurately and reproducibly positioning the patient, by displaying her live image from a single camera superimposed on the correct perspective projection of her 3D CT data. Our method requires only a standard digital camera capable of live-view mode, installed in the treatment suite at an approximately-known orientation and position (rotation R; translation T). Methods: A 10-sphere calibration jig was constructed and CT imaged to provide a 3D model. The (R,T) relating the camera to the CT coordinate system were determined by acquiring a photograph of the jig and optimizing an objective function, which compares the true image points to points calculated with a given candidate R and T geometry. Using this geometric information, 3D CT patient data, viewed from the camera's perspective, is plotted using a Matlab routine. This image data is superimposed onto the real-time patient image, acquired by the camera, and displayed using standard live-view software. This enables the therapists to view both the patient's current and desired positions, and guide the patient into assuming the correct position. The method was evaluated using an in-house developed bolus-like breast phantom, mounted on a supporting platform, which could be tilted at various angles to simulate treatment-like geometries. Results: Our system allowed breast phantom alignment, with an accuracy of about 0.5 cm and 1 0.5 degree. Better resolution could be possible using a camera with higher-zoom capabilities. Conclusion: We have developed an augmented-reality system, which combines a perspective projection of a CT image with a patient's real-time optical image. This system has the potential to improve patient setup accuracy during breast radiotherapy, and could possibly be used for other disease sites as well.

  20. Instrumentation requirements from the user's view. [For airbreathing hypersonic engines

    SciTech Connect (OSTI)

    Harsha, P.T.

    1988-01-01

    The use of combustor diagnostics is considered from the point of view of demonstration of performance of an airbreathing hypersonic engine. The basic need is seen to be that of providing the data necessary to verify performance predictions for the engine as installed in the airplane. This necessitates the use of a diagnostics capability that can provide the inputs required by the computational analyses that will be used to assess this performance. Because of the cost of ground test facilities, a premium is placed on measurement technique reliability and redundancy of instrumentation. A mix of nonintrusive optical techniques and probe-based measurements is seen to be the best approach using current diagnostics capability; one such instrument mix is outlined for a ramjet/scramjet test program. 11 references.

  1. Microsoft Word - PA_Viewing_Your_Position_Description_QRG.docx

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

    Quick R eference G uide: V iewing Y our P osition D escription PA_Viewing_Your_Position_Description_QRG 1 Rev. 9 /5/14 Instructions: People A dmin 7 i s t he I SU C lassification a nd H iring S ystem. U se t his guide t o l og into P eople A dmin 7 a nd t o v iew your o wn p osition d escription ( PD). F or m ore d etailed t raining resources, n avigate t o p eopleadmin.hrs.iastate.edu. I f y ou a re u nsure o f y our username/password, p lease c ontact t he S olution C enter (

  2. Staring 2-D hadamard transform spectral imager

    DOE Patents [OSTI]

    Gentry, Stephen M. (Albuquerque, NM); Wehlburg, Christine M. (Albuquerque, NM); Wehlburg, Joseph C. (Albuquerque, NM); Smith, Mark W. (Albuquerque, NM); Smith, Jody L. (Albuquerque, NM)

    2006-02-07

    A staring imaging system inputs a 2D spatial image containing multi-frequency spectral information. This image is encoded in one dimension of the image with a cyclic Hadamarid S-matrix. The resulting image is detecting with a spatial 2D detector; and a computer applies a Hadamard transform to recover the encoded image.

  3. The Third Image of the Large-Separation Lensed Quasar SDSS J1029+2623

    SciTech Connect (OSTI)

    Oguri, Masamune; Ofek, Eran O.; Inada, Naohisa; Morokuma, Tomoki; Falco, Emilio E.; Kochanek, Christopher S.; Kayo, Issha; Broadhurst, Tom; Richards, Gordon T.

    2008-02-22

    We identify a third image in the unique quasar lens SDSS J1029+2623, the second known quasar lens produced by a massive cluster of galaxies. The spectrum of the third image shows similar emission and absorption features, but has a redder continuum than the other two images which can be explained by differential extinction or microlensing. We also identify several lensed arcs. Our observations suggest a complicated structure of the lens cluster at z {approx} 0.6. We argue that the three lensed images are produced by a naked cusp on the basis of successful mass models, the distribution of cluster member galaxies, and the shapes and locations of the lensed arcs. Lensing by a naked cusp is quite rare among galaxy-scale lenses but is predicted to be common among large-separation lensed quasars. Thus the discovery can be viewed as support for an important theoretical prediction of the standard cold dark matter model.

  4. Device for wavelength-selective imaging

    DOE Patents [OSTI]

    Frangioni, John V. (Wayland, MA)

    2010-09-14

    An imaging device captures both a visible light image and a diagnostic image, the diagnostic image corresponding to emissions from an imaging medium within the object. The visible light image (which may be color or grayscale) and the diagnostic image may be superimposed to display regions of diagnostic significance within a visible light image. A number of imaging media may be used according to an intended application for the imaging device, and an imaging medium may have wavelengths above, below, or within the visible light spectrum. The devices described herein may be advantageously packaged within a single integrated device or other solid state device, and/or employed in an integrated, single-camera medical imaging system, as well as many non-medical imaging systems that would benefit from simultaneous capture of visible-light wavelength images along with images at other wavelengths.

  5. Image-based occupancy sensor

    DOE Patents [OSTI]

    Polese, Luigi Gentile; Brackney, Larry

    2015-05-19

    An image-based occupancy sensor includes a motion detection module that receives and processes an image signal to generate a motion detection signal, a people detection module that receives the image signal and processes the image signal to generate a people detection signal, a face detection module that receives the image signal and processes the image signal to generate a face detection signal, and a sensor integration module that receives the motion detection signal from the motion detection module, receives the people detection signal from the people detection module, receives the face detection signal from the face detection module, and generates an occupancy signal using the motion detection signal, the people detection signal, and the face detection signal, with the occupancy signal indicating vacancy or occupancy, with an occupancy indication specifying that one or more people are detected within the monitored volume.

  6. Image is all: Deregulation, restructuring and reputation in the natural gas industry

    SciTech Connect (OSTI)

    1997-09-01

    Does image affect how one views his local utility company--or energy supplier? Does one value his utility companies more if one sees a lot of image advertising and public relations stories about community involvement, environmental action and charitable work? Or does one view utilities as faceless and anonymous entities that provide necessary services one thinks little about until there`s a problem? And, more important, what is the role of utility image in an era of deregulation, as companies begin a new scramble for customers? To find an answer to these questions, American Gas and Christopher Bonner Consultants conducted a survey of A.G.A. member companies to learn what, if anything, utility companies are doing in the areas of image assessment and change. The survey was sent to more than 200 A.G.A. member companies; written responses were received from 35. In addition, 13 follow-up telephone interviews were conducted, including four with companies that had not responded in writing. The picture that emerges if of an industry that is starting to pay greater and greater attention to image. And, as utilities reorganize and redefine themselves, they are also reexamining the ways they communicate with key audiences, including employees, customers, legislators, the financial community and the news media.

  7. Imaging through obscurations for sluicing operations in the waste storage tanks

    SciTech Connect (OSTI)

    Peters, T.J.; McMakin, D.L.; Sheen, D.M.; Chieda, M.A.

    1994-08-01

    Waste remediators have identified that surveillance of waste remediation operations and periodic inspections of stored waste are required under very demanding and difficult viewing environments. In many cases, obscurants such as dust or water vapor are generated as part of the remediation activity. Methods are required for viewing or imaging beyond the normal visual spectrum. Work space images guide the movement of remediation equipment, creating a need for rapidly updated, near real-time imaging capability. In addition, there is a need for three-dimensional topographical data to determine the contours of the wastes, to plan retrieval campaigns, and to provide a three-dimensional map of a robot`s work space as basis for collision avoidance. Three basic imaging techniques were evaluated: optical, acoustic and radar. The optical imaging methods that were examined used cameras which operated in the visible region and near-infrared region and infrared cameras which operated in the 3--5 micron and 8--12 micron wavelength regions. Various passive and active lighting schemes were tested, as well as the use of filters to eliminate reflection in the visible region. Image enhancement software was used to extend the range where visual techniques could be used. In addition, the operation of a laser range finder, which operated at 0.835 microns, was tested when fog/water droplets were suspended in the air. The acoustic technique involved using commercial acoustic sensors, operating at approximately 50 kHz and 215 kHz, to determine the attenuation of the acoustic beam in a high-humidity environment. The radar imaging methods involved performing millimeter wave (94 GHz) attenuation measurement sin the various simulated sluicing environments and performing preliminary experimental imaging studies using a W-Band (75--110 GHz) linearly scanned transceiver in a laboratory environment. The results of the tests are discussed.

  8. Lensless Imaging of Magnetic Nanostructures

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

    Imaging of Magnetic Nanostructures Print Magnetism is useful for many devices and techniques, from electric motors and computer hard drives to magnetic resonance imaging used in medicine. By studying the basics of magnetism, scientists aim to better understand the fundamental physical principles that govern magnetic systems, perhaps leading to important new technologies. The high brightness and coherence of the ALS's soft x-rays have enabled scientists to apply lensless x-ray imaging for the

  9. Lensless Imaging of Magnetic Nanostructures

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

    Imaging of Magnetic Nanostructures Print Magnetism is useful for many devices and techniques, from electric motors and computer hard drives to magnetic resonance imaging used in medicine. By studying the basics of magnetism, scientists aim to better understand the fundamental physical principles that govern magnetic systems, perhaps leading to important new technologies. The high brightness and coherence of the ALS's soft x-rays have enabled scientists to apply lensless x-ray imaging for the

  10. Lensless Imaging of Magnetic Nanostructures

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

    Lensless Imaging of Magnetic Nanostructures Print Magnetism is useful for many devices and techniques, from electric motors and computer hard drives to magnetic resonance imaging used in medicine. By studying the basics of magnetism, scientists aim to better understand the fundamental physical principles that govern magnetic systems, perhaps leading to important new technologies. The high brightness and coherence of the ALS's soft x-rays have enabled scientists to apply lensless x-ray imaging

  11. Lensless Imaging of Magnetic Nanostructures

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

    Lensless Imaging of Magnetic Nanostructures Print Magnetism is useful for many devices and techniques, from electric motors and computer hard drives to magnetic resonance imaging used in medicine. By studying the basics of magnetism, scientists aim to better understand the fundamental physical principles that govern magnetic systems, perhaps leading to important new technologies. The high brightness and coherence of the ALS's soft x-rays have enabled scientists to apply lensless x-ray imaging

  12. ARM - Measurement - Images of Clouds

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

    govMeasurementsImages of Clouds ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Images of Clouds Digital images of cloud scenes (various formats) from satellite, aircraft, and ground-based platforms. Categories Cloud Properties Instruments The above measurement is considered scientifically relevant for the following instruments. Refer to the datastream (netcdf) file headers of each instrument for a

  13. Lensless Imaging of Magnetic Nanostructures

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

    Lensless Imaging of Magnetic Nanostructures Print Magnetism is useful for many devices and techniques, from electric motors and computer hard drives to magnetic resonance imaging used in medicine. By studying the basics of magnetism, scientists aim to better understand the fundamental physical principles that govern magnetic systems, perhaps leading to important new technologies. The high brightness and coherence of the ALS's soft x-rays have enabled scientists to apply lensless x-ray imaging

  14. Lensless Imaging of Magnetic Nanostructures

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

    Lensless Imaging of Magnetic Nanostructures Print Magnetism is useful for many devices and techniques, from electric motors and computer hard drives to magnetic resonance imaging used in medicine. By studying the basics of magnetism, scientists aim to better understand the fundamental physical principles that govern magnetic systems, perhaps leading to important new technologies. The high brightness and coherence of the ALS's soft x-rays have enabled scientists to apply lensless x-ray imaging

  15. Lensless Imaging of Magnetic Nanostructures

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

    Lensless Imaging of Magnetic Nanostructures Print Magnetism is useful for many devices and techniques, from electric motors and computer hard drives to magnetic resonance imaging used in medicine. By studying the basics of magnetism, scientists aim to better understand the fundamental physical principles that govern magnetic systems, perhaps leading to important new technologies. The high brightness and coherence of the ALS's soft x-rays have enabled scientists to apply lensless x-ray imaging

  16. Lensless Imaging of Magnetic Nanostructures

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

    Lensless Imaging of Magnetic Nanostructures Print Magnetism is useful for many devices and techniques, from electric motors and computer hard drives to magnetic resonance imaging used in medicine. By studying the basics of magnetism, scientists aim to better understand the fundamental physical principles that govern magnetic systems, perhaps leading to important new technologies. The high brightness and coherence of the ALS's soft x-rays have enabled scientists to apply lensless x-ray imaging

  17. Lensless Imaging of Magnetic Nanostructures

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

    Lensless Imaging of Magnetic Nanostructures Lensless Imaging of Magnetic Nanostructures Print Wednesday, 28 March 2012 00:00 Magnetism is useful for many devices and techniques, from electric motors and computer hard drives to magnetic resonance imaging used in medicine. By studying the basics of magnetism, scientists aim to better understand the fundamental physical principles that govern magnetic systems, perhaps leading to important new technologies. The high brightness and coherence of the

  18. Document Imaging | Department of Energy

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

    Document Imaging Document Imaging Converting Paper Documents into Electronic Files Converting paper documents into electronic files helps us manage, store, access and archive the organizational information we have "locked up" in paper documents. Utilizing high-quality document scanners, a top-end six-engine Optical Character Recognition (OCR) system and maintaining Quality Controls to provide a successful Imaging solution. Once converted, these electronic files can be indexed and

  19. Lensless Imaging of Magnetic Nanostructures

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

    useful for many devices and techniques, from electric motors and computer hard drives to magnetic resonance imaging used in medicine. By studying the basics of magnetism,...

  20. Multispectral Imaging | Open Energy Information

    Open Energy Info (EERE)

    ASTER imager utilizes 14 bands that cover portions of the visible (green, yellow, and red), near infrared (NIR), short wavelength infrared (SWIR), and long wavelength infrared...

  1. Lensless Imaging of Magnetic Nanostructures

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

    Print Magnetism is useful for many devices and techniques, from electric motors and computer hard drives to magnetic resonance imaging used in medicine. By studying...

  2. Imaging synthetic aperture radar

    DOE Patents [OSTI]

    Burns, Bryan L.; Cordaro, J. Thomas

    1997-01-01

    A linear-FM SAR imaging radar method and apparatus to produce a real-time image by first arranging the returned signals into a plurality of subaperture arrays, the columns of each subaperture array having samples of dechirped baseband pulses, and further including a processing of each subaperture array to obtain coarse-resolution in azimuth, then fine-resolution in range, and lastly, to combine the processed subapertures to obtain the final fine-resolution in azimuth. Greater efficiency is achieved because both the transmitted signal and a local oscillator signal mixed with the returned signal can be varied on a pulse-to-pulse basis as a function of radar motion. Moreover, a novel circuit can adjust the sampling location and the A/D sample rate of the combined dechirped baseband signal which greatly reduces processing time and hardware. The processing steps include implementing a window function, stabilizing either a central reference point and/or all other points of a subaperture with respect to doppler frequency and/or range as a function of radar motion, sorting and compressing the signals using a standard fourier transforms. The stabilization of each processing part is accomplished with vector multiplication using waveforms generated as a function of radar motion wherein these waveforms may be synthesized in integrated circuits. Stabilization of range migration as a function of doppler frequency by simple vector multiplication is a particularly useful feature of the invention; as is stabilization of azimuth migration by correcting for spatially varying phase errors prior to the application of an autofocus process.

  3. High-resolution ophthalmic imaging system

    DOE Patents [OSTI]

    Olivier, Scot S. (Livermore, CA); Carrano, Carmen J. (Livermore, CA)

    2007-12-04

    A system for providing an improved resolution retina image comprising an imaging camera for capturing a retina image and a computer system operatively connected to the imaging camera, the computer producing short exposures of the retina image and providing speckle processing of the short exposures to provide the improved resolution retina image. The system comprises the steps of capturing a retina image, producing short exposures of the retina image, and speckle processing the short exposures of the retina image to provide the improved resolution retina image.

  4. Fermilab | Illinois Accelerator Research Center | Image Gallery

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

    Multimedia Gallery Pictures of the Finished OTE Building thumbnail Front view of IARC with Wilson Hall in the Background. Download: Hi-Res | Med-Res thumbnail Front view of IARC with Wilson Hall in the Background. (Pictures courtesy of Ross Barney Architects, Photographer Kate Joyce Studios). Download: Med-Res thumbnail View of east side of OTE building. (Pictures courtesy of Ross Barney Architects, Photographer Kate Joyce Studios). Download: Med-Res thumbnail Ground view of west side of OTE

  5. Handheld Digital Three-Dimensional Color Imaging Camera Peter King Humanik

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

    and Eric Edlund | Princeton Plasma Physics Lab Handheld Digital Three-Dimensional Color Imaging Camera Peter King Humanik and Eric Edlund This invention consists of a camera that can capture electromagnetic radiation of certain wavelengths and lasers tuned to those wavelengths. The beams of the lasers are spread so that each displays a very thin line when directed at a surface. The camera collects many photographs rapidly as the laser beams move across the field of view and extrapolates

  6. The ITER VIS/IR wide angle viewing system: Challenges and on-going R and D

    SciTech Connect (OSTI)

    Travere, J. M.; Aumeunier, M. H.; Joanny, M.; Jouve, M.; Martin, V.; Moncada, V.; Salasca, S.; Marot, L.; Chabaud, D.; Ferme, J. J.; Bremond, F.; Thonnat, M.

    2011-07-01

    The ITER tokamak is the next generation fusion device which will allow studying burning plasma obtained by a Deuterium-Tritium (D-T) fusion reaction during hundreds of seconds. ITER vacuum vessel real-time protection will be mandatory during plasma operation to avoid water leaks and critical plasma facing components degradation. The protection system will be based on a wide angle viewing system (WAVS) composed with 18 visible (VIS) and 18 infrared (IR) cameras covering 80 % of the vacuum vessel which will be one of the major imaging systems of ITER. Compared to protection systems routinely used on current tokamaks and based on imaging (VIS and/or IR), new constraints must be taken into account because of their influence on the system performance: the harsh environment (high neutron flux) and the metallic plasma facing components (both first wall and divertor). In this new demanding context, we have achieved three mandatory R and D studies starting from the understanding of the source of signals by using realistic photonic simulation up to real-time processing strategy taken into account first order optical design constraints to define what type of performance could be reached for ITER vacuum vessel protection. (authors)

  7. Image subregion querying using color correlograms

    DOE Patents [OSTI]

    Huang, Jing (Ossining, NY); Kumar, Shanmugasundaram Ravi (San Jose, CA); Mitra, Mandar (Calcutta, IN); Zhu, Wei-Jing (Ossining, NY)

    2002-01-01

    A color correlogram (10) is a representation expressing the spatial correlation of color and distance between pixels in a stored image. The color correlogram (10) may be used to distinguish objects in an image as well as between images in a plurality of images. By intersecting a color correlogram of an image object with correlograms of images to be searched, those images which contain the objects are identified by the intersection correlogram.

  8. Accessing and Viewing NETL Solicitations/Funding Opportunity Announcements on FedConnect

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

    Accessing NETL Solicitations/Funding Opportunity Announcements in FedConnect In the Internet Explorer browser, enter the FedConnect URL www.FedConnect.net On the Main Page, click on Search Public Opportunities and Awards Under Search Criteria, select Issuing Office and type in NETL. Click on Search. Click the hyperlink under the title to view. Click on Body under Solicitation to view the solicitation/announcement instructions. To view Amendments to the solicitation/announcement, click on Body

  9. Solar Viewed as Triple Boon for Bishop Paiute Tribe | Department of Energy

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

    Solar Viewed as Triple Boon for Bishop Paiute Tribe Solar Viewed as Triple Boon for Bishop Paiute Tribe July 1, 2014 - 8:00am Addthis What does this project do? Tribal participants in the GRID Alternatives/Bishop Paiute solar project view the project's triple bottom line of financial savings, job training, and clean energy as a boon to their community in the economically depressed, drought-stricken, and polluted Owens Valley. GRID Alternatives estimates that the Bishop Paiute solar electric

  10. A View of Environmental Justice at the U.S. Department of Energy |

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

    Department of Energy A View of Environmental Justice at the U.S. Department of Energy A View of Environmental Justice at the U.S. Department of Energy PDF icon A View of Environmental Justice at the U.S. Department of Energy More Documents & Publications 2012 Independent Communication and Outreach Stakeholder Satisfaction Survey Environmental Justice Strategy 2013 Annual Planning Summary for the Office of Legacy Management

  11. Video surveillance with speckle imaging

    DOE Patents [OSTI]

    Carrano, Carmen J. (Livermore, CA); Brase, James M. (Pleasanton, CA)

    2007-07-17

    A surveillance system looks through the atmosphere along a horizontal or slant path. Turbulence along the path causes blurring. The blurring is corrected by speckle processing short exposure images recorded with a camera. The exposures are short enough to effectively freeze the atmospheric turbulence. Speckle processing is used to recover a better quality image of the scene.

  12. T-538: HP OpenView Storage Data Protector Bug Lets Remote Users Execute Arbitrary Code

    Broader source: Energy.gov [DOE]

    A vulnerability was reported in HP OpenView Storage Data Protector. A remote user can execute arbitrary code on the target system.

  13. T-643: HP OpenView Storage Data Protector Unspecified Code Execution Vulnerability

    Broader source: Energy.gov [DOE]

    A vulnerability has been reported in HP OpenView Storage Data Protector, which can be exploited by malicious people to compromise a vulnerable system.

  14. High-resolution monochromatic x-ray imaging system based on spherically bent crystals

    SciTech Connect (OSTI)

    Aglitskiy, Y.; Lehecka, T.; Obenschain, S.; Bodner, S.; Pawley, C.; Gerber, K.; Sethian, J.; Brown, C.M.; Seely, J.; Feldman, U.; Holland, G.

    1998-08-01

    We have developed an improved x-ray imaging system based on spherically curve crystals. It is designed and used for diagnostics of targets ablatively accelerated by the Nike KrF laser. A spherically curved quartz crystal (2d=6.687 {Angstrom}, R=200 mm) has been used to produce monochromatic backlit images with the He-like Si resonance line (1865 eV) as the source of radiation. The spatial resolution of the x-ray optical system is 1.7 {mu}m in selected places and 2{endash}3 {mu}m over a larger area. Time-resolved backlit monochromatic images of polystyrene planar targets driven by the Nike facility have been obtained with a spatial resolution of 2.5 {mu}m in selected places and 5 {mu}m over the focal spot of the Nike laser. {copyright} 1998 Optical Society of America

  15. Simultaneous acquisition of differing image types

    DOE Patents [OSTI]

    Demos, Stavros G

    2012-10-09

    A system in one embodiment includes an image forming device for forming an image from an area of interest containing different image components; an illumination device for illuminating the area of interest with light containing multiple components; at least one light source coupled to the illumination device, the at least one light source providing light to the illumination device containing different components, each component having distinct spectral characteristics and relative intensity; an image analyzer coupled to the image forming device, the image analyzer decomposing the image formed by the image forming device into multiple component parts based on type of imaging; and multiple image capture devices, each image capture device receiving one of the component parts of the image. A method in one embodiment includes receiving an image from an image forming device; decomposing the image formed by the image forming device into multiple component parts based on type of imaging; receiving the component parts of the image; and outputting image information based on the component parts of the image. Additional systems and methods are presented.

  16. SMB 2014 - Imaging Summer School

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

    W toward Mountain View Alviso Rd. Take exit 1B to merge onto CA-85 S toward CA-82 SLos GatosSanta Cruz. Take exit 19A to merge onto I-280 N toward San Francisco. Take exit 24 for...

  17. Image indexing using color correlograms

    DOE Patents [OSTI]

    Huang, Jing (Ossining, NY); Kumar, Shanmugasundaram Ravi (San Jose, CA); Mitra, Mandar (Calcutta, IN); Zhu, Wei-Jing (Ossining, NY)

    2001-01-01

    A color correlogram is a three-dimensional table indexed by color and distance between pixels which expresses how the spatial correlation of color changes with distance in a stored image. The color correlogram may be used to distinguish an image from other images in a database. To create a color correlogram, the colors in the image are quantized into m color values, c.sub.i . . . c.sub.m. Also, the distance values k.epsilon.[d] to be used in the correlogram are determined where [d] is the set of distances between pixels in the image, and where dmax is the maximum distance measurement between pixels in the image. Each entry (i, j, k) in the table is the probability of finding a pixel of color c.sub.i at a selected distance k from a pixel of color c.sub.i. A color autocorrelogram, which is a restricted version of the color correlogram that considers color pairs of the form (i,i) only, may also be used to identify an image.

  18. Imaging radiation detector with gain

    DOE Patents [OSTI]

    Morris, Christopher L. (Los Alamos, NM); Idzorek, George C. (Los Alamos, NM); Atencio, Leroy G. (Espanola, NM)

    1984-01-01

    A radiation imaging device which has application in x-ray imaging. The device can be utilized in CAT scanners and other devices which require high sensitivity and low x-ray fluxes. The device utilizes cumulative multiplication of charge carriers on the anode plane and the collection of positive ion charges to image the radiation intensity on the cathode plane. Parallel and orthogonal cathode wire arrays are disclosed as well as a two-dimensional grid pattern for collecting the positive ions on the cathode.

  19. Imaging radiation detector with gain

    DOE Patents [OSTI]

    Morris, C.L.; Idzorek, G.C.; Atencio, L.G.

    1982-07-21

    A radiation imaging device which has application in x-ray imaging. The device can be utilized in CAT scanners and other devices which require high sensitivity and low x-ray fluxes. The device utilizes cumulative multiplication of charge carriers on the anode plane and the collection of positive ion charges to image the radiation intensity on the cathode plane. Parallel and orthogonal cathode wire arrays are disclosed as well as a two-dimensional grid pattern for collecting the positive ions on the cathode.

  20. Dumping Dirty Diesels: The View From the Bridge | Department of Energy

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

    Dumping Dirty Diesels: The View From the Bridge Dumping Dirty Diesels: The View From the Bridge 2005 Diesel Engine Emissions Reduction (DEER) Conference Presentations and Posters PDF icon 2005_deer_kassel.pdf More Documents & Publications EPA Diesel Update EPA Mobile Source Rule Update Light-duty Diesels: Clean Enough?