National Library of Energy BETA

Sample records for laser technologies group

  1. Laser dye technology

    SciTech Connect (OSTI)

    Hammond, P R

    1999-09-01

    The author has worked with laser dyes for a number of years. A first interest was in the Navy blue-green program where a flashlamp pumped dye laser was used as an underwater communication and detection device. It made use of the optical window of sea-water--blue for deep ocean, green for coastal water. A major activity however has been with the Atomic Vapor Laser Isotope Separation Program (AVLIS) at the Lawrence Livermore National Laboratory. The aim here has been enriching isotopes for the nuclear fuel cycle. The tunability of the dye laser is utilized to selectively excite one isotope in uranium vapor, and this isotope is collected electrostatically as shown in Figure 1. The interests in the AVLIS program have been in the near ultra-violet, violet, red and deep-red.

  2. Summary Report of Working Group 1: Laser-Plasma Acceleration

    SciTech Connect (OSTI)

    Geddes, C.G.R.; Clayton, C.; Lu, W.; Thomas, A.G.R.

    2010-06-01

    Advances in and physics of the acceleration of particles using underdense plasma structures driven by lasers were the topics of presentations and discussions in Working Group 1 of the 2010 Advanced Accelerator Concepts Workshop. Such accelerators have demonstrated gradients several orders beyond conventional machines, with quasi-monoenergetic beams at MeV-GeV energies, making them attractive candidates for next generation accelerators. Workshop discussions included advances in control over injection and laser propagation to further improve beam quality and stability, detailed diagnostics and physics models of the acceleration process, radiation generation as a source and diagnostic, and technological tools and upcoming facilities to extend the reach of laser-plasma accelerators.

  3. Summary Report of Working Group 1: Laser-Plasma Acceleration

    E-Print Network [OSTI]

    Geddes, Cameron Guy Robinson

    by the laser recently has been demonstrated to produce intense beams of electrons at MeV-GeV energies was on control, detailed diagnostics and physics models, and technological tools to work towards the beam needed? (Joint with computational working group) In addition, techniques for controlling electron beam

  4. Nick Wright Named Advanced Technologies Group Lead

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

    National Laboratory's Future Technologies Group (FTG) to assess emerging technologies in architecture, algorithms, parallel programming paradigms and languages. "Computing...

  5. LASER SCANNING TECHNOLOGY FOR ROCK ENGINEERING APPLICATIONS

    E-Print Network [OSTI]

    LASER SCANNING TECHNOLOGY FOR ROCK ENGINEERING APPLICATIONS Thorsten Schulz Institute of Geodesy or on the excavation surface. The use of laser scanners enables one to cope with practical constraints encountered surfaces regardless of the lighting conditions. Therefore, laser scanners have the potential to be employed

  6. Fusion Technology Working Group Presented by

    E-Print Network [OSTI]

    California at Los Angeles, University of

    Snowmass Fusion Technology Working Group Summary Presented by M. Abdou, S. Milora Snowmass July 23, 1999 #12;Technology Working Group Subgroup # 1 Subgroup # 2 Solid Walls Ulrickson / Mattas Liquid Walls / Ying Chamber Technology Abdou / Ulrickson Heating/CD/Fueling Swain / Temkin Magnets Schultz / Woolley

  7. Enforcement Letter, Parsons Infrastructure & Technology Group...

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

    Infrastructure & Technology Group, Inc., related to a Form Wood Timber Fire at the Salt Waste Processing Facility at the Savannah River Site On July 13, 2009, the U.S....

  8. APEC experts` group on clean coal technology

    SciTech Connect (OSTI)

    NONE

    1994-12-31

    The proceedings of the Asia-Pacific Economic Cooperation (APEC) Expert`s Group on Clean Coal Technology`s Technical Seminar held in Jakarta, Indonesia, from October 10-13, 1994 are presented. A total of 28 papers were presented at the seminar. These papers addressed issues of relevance to APEC member economies associated with the application of clean coal technologies (CCTs) and created a forum where information and ideas about CCTs and their application in the Asia-Pacific Region could be exchanged. A separate abstract was prepared for each paper for inclusion in the Energy Science and Technology Database.

  9. LASER SAFETY MANUAL SOUTH DAKOTA SCHOOL OF MINES & TECHNOLOGY

    E-Print Network [OSTI]

    Anagnostou, Dimitris E.

    LASER SAFETY MANUAL SOUTH DAKOTA SCHOOL OF MINES & TECHNOLOGY Created: 06/15/07 Revision Date: 09/07/2007 FOR OFFICIAL USE ONLY #12;2 Table of Contents 1.0 SDSM&T Laser Safety Policy.................................................................................................3 2.1 Authorized Laser User

  10. Laser Etching: A Novel Technology to Label Florida Grapefruit

    E-Print Network [OSTI]

    Burns, Jacqueline K.

    Laser Etching: A Novel Technology to Label Florida Grapefruit Preeti Sood1 , Chris Ference2 , Jan, produce labeling SUMMARY. Laser labeling of fruit and vegetables is an alternative means of labeling produce in which a low-energy carbon dioxide laser beam etches the surface and reveals a contrasting

  11. The Fifth Omega Laser Facility Users Group Workshop

    SciTech Connect (OSTI)

    Petrasso, R. D.

    2015-10-01

    A capacity gathering of over 100 researchers from 25 universities and laboratories met at the Laboratory for Laser Energetics (LLE) for the Fifth Omega Laser Facility Users Group (OLUG) workshop. The purpose of the 2.5-day workshop was to facilitate communications and exchanges among individual Omega users and between users and the LLE management; to present ongoing and proposed research; to encourage research opportunities and collaborations that could be undertaken at the Omega Laser Facility and in a complementary fashion at other facilities [such as the National Ignition Facility (NIF) or the Laboratoire pour l’Utilisation des Lasers Intenses (LULI)]; to provide an opportunity for students, postdoctoral fellows, and young researchers to present their research in an informal setting; and to provide feedback to LLE management from the users about ways to improve the facility and future experimental campaigns.

  12. The Sixth Omega Laser Facility Users Group Workshop

    SciTech Connect (OSTI)

    Petrasso, R. D.

    2014-10-01

    A capacity gathering of over 100 researchers from 25 universities and laboratories met at the Laboratory for Laser Energetics (LLE) for the Sixth Omega Laser Facility Users Group (OLUG) workshop. The purpose of the 2.5-day workshop was to facilitate communications and exchanges among individual OMEGA users, and between users and the LLE management; to present ongoing and proposed research; to encourage research opportunities and collaborations that could be undertaken at the Omega Laser Facility and in a complementary fashion at other facilities [such as the National Ignition Facility (NIF) or the Laboratoire pour l’Utilisation des Lasers Intenses (LULI)]; to provide an opportunity for students, postdoctoral fellows, and young researchers to present their research in an informal setting; and to provide feedback from the users to LLE management about ways to improve and keep the facility and future experimental campaigns at the cutting edge.

  13. Axis Technologies Group Inc | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LISTStar Energy LLC Jump to:Greece: EnergyMontana) Jump to:Axis Technologies Group Inc

  14. State Grid and Shenzhen Energy Group Biomass Engineering Technology...

    Open Energy Info (EERE)

    State Grid and Shenzhen Energy Group Biomass Engineering Technology Research Centre Jump to: navigation, search Name: State Grid and Shenzhen Energy Group Biomass Engineering...

  15. Jennifer Tonzello Caldwell, Ph.D. Group Leader, Technology Commercialization

    E-Print Network [OSTI]

    the Technology Commercialization Group which is responsible for intellectual property portfolio management, licensing, and technology transfer (including the management of the UT-Battelle Privately Funded Technology Corporation Technology, Inc. (RCT) located in Tucson, Arizona. RCT is a technology management company

  16. Laser-isotope-separation technology. [Review; economics

    SciTech Connect (OSTI)

    Jensen, R.J.; Blair, L.S.

    1981-01-01

    The Molecular Laser Isotope Separation (MLIS) process currently under development is discussed as an operative example of the use of lasers for material processing. The MLIS process, which uses infrared and ultraviolet lasers to process uranium hexafluoride (UF/sub 6/) resulting in enriched uranium fuel to be used in electrical-power-producing nuclear reactor, is reviewed. The economics of the MLIS enrichment process is compared with conventional enrichment technique, and the projected availability of MLIS enrichment capability is related to estimated demands for U.S. enrichment service. The lasers required in the Los Alamos MLIS program are discussed in detail, and their performance and operational characteristics are summarized. Finally, the timely development of low-cost, highly efficient ultraviolet and infrared lasers is shownd to be the critical element controlling the ultimate deployment of MLIS uranium enrichment. 8 figures, 7 tables.

  17. Technology Evaluation and Integration Group: Center for Transportation Technologies and Systems

    SciTech Connect (OSTI)

    Not Available

    2008-08-01

    Fact sheet describes the specialized work done by NREL's Technology Evaluation and Integration Group in the Center for Transportation Technologies and Systems.

  18. IBM Systems & Technology Group Cell/Quasar Ecosystem & Solutions Enablement

    E-Print Network [OSTI]

    Lanterman, Aaron

    IBM Systems & Technology Group Cell/Quasar Ecosystem & Solutions Enablement Cell Programming Workshop 3/2/2008 © 2007 IBM Corporation1 Hands-on - DMA Transfer Using get and put Buffer Cell Programming Workshop Cell/Quasar Ecosystem & Solutions Enablement #12;IBM Systems & Technology Group ­ Cell

  19. IBM Systems & Technology Group Cell/Quasar Ecosystem & Solutions Enablement

    E-Print Network [OSTI]

    Lanterman, Aaron

    IBM Systems & Technology Group Cell/Quasar Ecosystem & Solutions Enablement Cell Programming Workshop 07/19/07 © 2007 IBM Corporation1 Hands-on ­ The Hello World! Program Cell Programming Workshop Cell/Quasar Ecosystem Solutions Enablement #12;IBM Systems & Technology Group ­ Cell/Quasar Ecosystem

  20. IBM Systems & Technology Group Cell/Quasar Ecosystem & Solutions Enablement

    E-Print Network [OSTI]

    Lanterman, Aaron

    IBM Systems & Technology Group Cell/Quasar Ecosystem & Solutions Enablement Cell Programming Workshop 07/19/07 © 2007 IBM Corporation1 Developing Code for Cell - SIMD Cell Programming Workshop Cell/Quasar Ecosystem Solutions Enablement #12;IBM Systems & Technology Group ­ Cell/Quasar Ecosystem & Solutions

  1. IBM Systems & Technology Group Cell/Quasar Ecosystem & Solutions Enablement

    E-Print Network [OSTI]

    Lanterman, Aaron

    IBM Systems & Technology Group Cell/Quasar Ecosystem & Solutions Enablement Cell Programming Workshop 3/2/2008 © 2007 IBM Corporation1 Hands-on - DMA Transfer Using Control Block Cell Programming Workshop Cell/Quasar Ecosystem & Solutions Enablement #12;IBM Systems & Technology Group ­ Cell

  2. June 25, 2015 Manager, IT Technology Support Group

    E-Print Network [OSTI]

    June 25, 2015 Manager, IT ­ Technology Support Group StFX is a top ranking Canadian university and we are seeking a Manager, IT to join our IT Services team reporting to the Director, Technology, and identifying requirements for and researching solutions to technology issues. The Manager, IT is responsible

  3. Summary of the particle physics and technology working group

    SciTech Connect (OSTI)

    Stephan Lammel et al.

    2002-12-10

    Progress in particle physics has been tightly related to technological advances during the past half century. Progress in technologies has been driven in many cases by the needs of particle physics. Often, these advances have benefited fields beyond particle physics: other scientific fields, medicine, industrial development, and even found commercial applications. The particle physics and technology working group of Snowmass 2001 reviewed leading-edge technologies recently developed or in the need of development for particle physics. The group has identified key areas where technological advances are vital for progress in the field, areas of opportunities where particle physics may play a principle role in fostering progress, and areas where advances in other fields may directly benefit particle physics. The group has also surveyed the technologies specifically developed or enhanced by research in particle physics that benefit other fields and/or society at large.

  4. Laser-Compton Light Source Technology

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.Theory ofDid you notHeat PumpsTechnologies | Blandine Jerome LanfangCenter

  5. Science, technology, and the industrialization of laser-driven processes

    SciTech Connect (OSTI)

    Davis, J.I.; Paisner, J.A.

    1985-05-01

    Members of the laser program at Lawrence Livermore National Laboratory (LLNL) reviewed potential applications of lasers in industry, some of which are: isotope separation; cleanup of radioactive waste; trace impurity removal; selective chemical reactions; photochemical activation or dissociation of gases; control of combustion particulates; crystal and powder chemistry; and laser induced biochemistry. Many of these areas are currently under active study in the community. The investigation at LLNL focused on laser isotope separation of atomic uranium because of the large demand (> 1000 tonnes/year) and high product enrichment price (> $600/kg of product) for material used as fuel in commercial light-water nuclear power reactors. They also believed that once the technology was fully developed and deployed, it could be applied directly to separating many elements economically on an industrial scale. The Atomic Vapor Laser Isotope Separation (AVLIS) program at LLNL has an extensive uranium and plutonium program of >$100 M in FY85 and a minor research program for other elements. This report describes the AVLIS program conducted covering the following topics; candidate elements; separative work units; spectroscopic selectivety; major systems; facilities; integrated process model;multivariable sensitivety studies; world market; and US enrichment enterprise. 23 figs. (AT)

  6. Summary Report of Working Group 1: Laser-Plasma Acceleration

    E-Print Network [OSTI]

    Geddes, C.G.R.

    2011-01-01

    an accurate diagnostic of the electron beam properties, aselectron and laser beam character- istics. New diagnosticselectron beam charge, peak energy and energy spread, and provide diagnostics

  7. The application of nanosecond-pulsed laser welding technology in MEMS packaging with a shadow mask$

    E-Print Network [OSTI]

    Lin, Liwei

    The application of nanosecond-pulsed laser welding technology in MEMS packaging with a shadow mask wiring is not pre- ferred. A comprehensive review on laser welding was given in [6]. The laser welding of laser welding is to create the liquid pool by absorption of incident radiation, allow it to grow

  8. Solid state laser technology for inertial confinement fusion: A collection of articles from ''Energy and Technology Review''

    SciTech Connect (OSTI)

    Not Available

    1988-06-01

    This paper contains reprinted articles that record several milestones in laser research at LLNL. ''Neodymium-Glass Laser Research and Development at LLNL'' recounts the history of the Laser Program and our work on neodymium-glass lasers. ''Nova Laser Technology'' describes the capabilities of the Nova laser and some of its uses. ''Building Nova: Industry Relations and Technology Transfer'' illustrates the Laboratory's commitment to work with US industry in technology development. ''Managing the Nova Laser Project'' details the organization and close monitoring of costs and schedules during the construction of the Nova laser facility. The article ''Optical Coatings by the Sol-Gel Process,'' describes our chemical process for making the damage-resistant, antireflective silica coatings used on the Nova laser glass. The technical challenges in designing and fabricating the KDP crystal arrays used to convert the light wave frequency of the Nova lasers are reported in ''Frequency Conversion of the Nova Laser.'' Two articles, ''Eliminating Platinum Inclusions in Laser Glass'' and ''Detecting Microscopic Inclusions in Optical Glass,'' describe how we dealt with the problem of damaging metal inclusions in the Nova laser glass. The last article reprinted here, ''Auxilliary Target Chamber for Nova,'' discusses the diversion of two of Nova's ten beamlines into a secondary chamber for the purpose of increasing our capacity for experimentation.

  9. Delft University of Technology Software Engineering Research Group

    E-Print Network [OSTI]

    van Deursen, Arie

    performing architecture evaluations is rather high. Babar et al. [5] conclude that this lack of outDelft University of Technology Software Engineering Research Group Technical Report Series A Cognitive Model for Software Architecture Complexity Eric Bouwers, Carola Lilienthal, Joost Visser and Arie

  10. Han s Laser Technology Co Ltd | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LISTStar2-0057-EA JumpDuimen River Power Co LtdGuntherGreens Laser Technology Co Ltd

  11. CRC handbook of laser science and technology. Volume 1. Lasers and masers

    SciTech Connect (OSTI)

    Weber, M.J.

    1982-01-01

    This book describes various types of lasers and masers. The following topics are discussed in detail: types and comparisons of laser sources, crystal and glass lasers, semiconductor lasers, organic dye and other liquid lasers, free-electron and x-ray lasers, masers and laser safety.

  12. Optics & Laser Technology 40 (2008) 625631 Three-dimensional non-destructive optical evaluation

    E-Print Network [OSTI]

    Chen, Zhongping

    2008-01-01

    . A pyrometer, an infrared radiation sensor, is used to monitor surface temperature variation in laser brazingOptics & Laser Technology 40 (2008) 625­631 Three-dimensional non-destructive optical evaluation coherence tomography (OCT) as a non-destructive diagnostic tool for evaluating laser-processing performance

  13. Lasers

    SciTech Connect (OSTI)

    1995-01-01

    The scope of our research in laser and related technologies has grown over the years and has attracted a broad user base for applications within DOE, DOD, and private industry. Within the next few years, we expect to begin constructing the National Ignition Facility, to make substantial progress in deploying AVLIS technology for uranium and gadolinium enrichment, and to develop new radar sensing techniques to detect underwater objects. Further, we expect to translate LLNL patent ideas in microlithography into useful industrial products and to successfully apply high-power, diode-based laser technology to industrial and government applications.

  14. Excimer laser photolysis of group 6 metal carbonyls in the gas phase

    SciTech Connect (OSTI)

    Ishikawa, Yoichi; Brown, C.E.; Hackett, P.A.; Rayner, D.M. )

    1990-03-22

    The excimer laser photolysis of Mo(CO){sub 6} in the gas phase has been studied at 351, 308, 248, and 222 nm with laser-based, time-resolved infrared absorption spectroscopy. Results have also been obtained on the 308- and 222-nm photolysis of Cr(CO){sub 6} and on the 222-nm photolysis of W(CO){sub 6}, complementing earlier studies and presenting a complete picture of group 6 metal carbonyl ultraviolet photodecomposition.

  15. Summary report of working group 3: High gradient and laser-structure based acceleration

    SciTech Connect (OSTI)

    Solyak, N.; Cowan, B.M.; /Tech-X, Boulder

    2010-01-01

    The charge for the working group on high gradient and laser-structure based acceleration was to assess the current challenges involved in developing an advanced accelerator based on electromagnetic structures, and survey state-of-the-art methods to address those challenges. The topics of more than 50 presentations in the working group covered a very broad range of issues, from ideas, theoretical models and simulations, to design and manufacturing of accelerating structures and, finally, experimental results on obtaining extremely high accelerating gradients in structures from conventional microwave frequency range up to THz and laser frequencies. Workshop discussion topics included advances in the understanding of the physics of breakdown and other phenomena, limiting high gradient performance of accelerating structures. New results presented in this workshop demonstrated significant progress in the fields of conventional vacuum structure-based acceleration, dielectric wakefield acceleration, and laser-structure acceleration.

  16. Alternative applications of atomic vapor laser isotope separation technology

    SciTech Connect (OSTI)

    Not Available

    1991-01-01

    This report was commissioned by the Secretary of Energy. It summarizes the main features of atomic vapor laser isotope separation (AVLIS) technology and subsystems; evaluates applications, beyond those of uranium enrichment, suggested by Lawrence Livermore National Laboratory (LLNL) and a wide range of US industries and individuals; recommends further work on several applications; recommends the provision of facilities for evaluating potential new applications; and recommends the full involvement of end users from the very beginning in the development of any application. Specifically excluded from this report is an evaluation of the main AVLIS missions, uranium enrichment and purification of plutonium for weapons. In evaluating many of the alternative applications, it became clear that industry should play a greater and earlier role in the definition and development of technologies with the Department of Energy (DOE) if the nation is to derive significant commercial benefit. Applications of AVLIS to the separation of alternate (nonuranium) isotopes were considered. The use of {sup 157}Gd as burnable poison in the nuclear fuel cycle, the use {sup 12}C for isotopically pure diamond, and the use of plutonium isotopes for several nonweapons applications are examples of commercially useful products that might be produced at a cost less than the product value. Separations of other isotopes such as the elemental constituents of semiconductors were suggested; it is recommended that proposed applications be tested by using existing supplies to establish their value before more efficient enrichment processes are developed. Some applications are clear, but their production costs are too high, the window of opportunity in the market has passed, or societal constraints (e.g., on reprocessing of reactor fuel) discourage implementation.

  17. SURFING A WAVE TO COMPACT LASER TECHNOLOGY December 10 2007

    E-Print Network [OSTI]

    Strathclyde, University of

    involving teams at the Friedrich-Schiller-Universität, Jena, Germany, and Stellenbosch University in South laser pulses can be fired into plasma to create a wake and its huge electric fields can be harnessed you a powerful scientific tool for the price of a laser." The project to develop compact light sources

  18. 12010-10-21 ESDSWG -Technolgy Infusion Working Group Technology Infusion Process

    E-Print Network [OSTI]

    Christian, Eric

    /function provided vs. needs). Technology assessment matrix with scores. ­ Cost/benefit analysis. ­ Proof of concept12010-10-21 ESDSWG - Technolgy Infusion Working Group Technology Infusion Process Steve Olding 9th Infusion Working Group Technology Infusion Process 2009 Stakeholder needs identification Science needs End

  19. Retraining of technicians in Laser/electro-optics technology

    SciTech Connect (OSTI)

    Morrison, R.E.

    1980-01-01

    The need for trained personnel to work in the Laser/electro-optics field, and the training of such technicians either as new young workers or as retrained older employees are discussed. (LCL)

  20. Generation of pseudo-high-order group velocity locked vector solitons in fiber lasers

    E-Print Network [OSTI]

    Jin, Xinxin; Li, Lei; Ge, Yanqi; Luo, Jiaolin; Zhang, Qian; Tang, Dingyuan; Shen, Deyuan; Fu, Songnian; Liu, Deming; Zhao, Luming

    2015-01-01

    We propose and experimentally demonstrate the generation of pseudo-high-order group velocity locked vector solitons (GVLVS) in a fiber laser using a SESAM as the mode locker. With the help of an external all-fiber polarization resolved system, a GVLVS with a two-humped pulse along one polarization while a single-humped pulse along the orthogonal polarization could be obtained. The phase difference between the two humps is 180 degree.

  1. Looking at Information Technology as an Individual, a Group, and as a Society

    E-Print Network [OSTI]

    Golub, Evan

    Looking at Information Technology as an Individual, a Group, and as a Society Evan Golub with the Office of the Dean of Undergraduate Studies to create an "Applied Information Technology" citation Technology outside the Classroom #12;CMSC 102 Introduction to Information Technology · Focus: Information

  2. Technology adaptation and boundary management in bona fide virtual groups

    E-Print Network [OSTI]

    Zhang, Huiyan

    2006-04-12

    and norms of media combination and media use. Group boundaries were preserved when the influence of outgroup members were constrained through media use, such as excluding them from team conference calls, filtering messages from external groups or members...

  3. Advanced Vehicles Group: Center for Transportation Technologies and Systems

    SciTech Connect (OSTI)

    Not Available

    2008-08-01

    Describes R&D in advanced vehicle systems and components (e.g., batteries) by NREL's Advanced Vehicles Group.

  4. Technology Transfer Working Group (TTWG) | Department of Energy

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LIST OF APPLICABLEStatutory Authority J-I- 1May 20062012DepartmentTechnologyTechnology

  5. Key Laser Technologies for X-Ray FELs

    SciTech Connect (OSTI)

    Kaertner, Franz

    2013-08-31

    In the final project period, we demonstrated sub femtosecond timing distribution over a 1.2 km polarization-maintaining (PM) fiber-optic link using balanced optical cross-correlators (BOCs) for link stabilization. By eliminating polarization mode dispersion, link operation for 16 days maintained 0.6 fs RMS timing drift and during a 3-day interval only 0.13 fs drift, which corresponds to a stability level of 10-21. To improve the overall system efficiency and robustness, we developed fiber-coupled, hybrid-integrated BOCs using waveguides in periodically-poled KTiOPO4 (PPKTP). The measured second-harmonic conversion efficiency in the waveguides is a factor of 50 higher than that of bulk-optic crystals. Characterization of 1st-generation devices shows performance comparable to free-space BOCs, with the potential for significant improvement in future devices. For optical-to-RF conversion, we developed two balanced optical-microwave phase detectors (BOM-PD) based on the Sagnac and Mach-Zehnder interferometers. RF extraction using BOM-PDs in phase-locked loops yielded sub-10-fs residual timing jitter for locking bandwidths on the order of several hundred kHz. Finally, we characterized the timing jitter of ultralow-noise Ti:Sapphire oscillators, demonstrating an unprecedented 13 as of jitter integrated over the entire Nyquist band. Our measurements agreed well with theory, confirming our models for quantum-limited laser noise. Measurements of commercially available solid-state lasers at 1550 nm showed that there are laser sources already available with sufficiently low noise to achieve sub-femtosecond performance as master oscillators within a timing distribution system.

  6. Shane Canon! Group Leader for Technology Integration Biosciences

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effect Photovoltaics -7541 Unlimited Release4:Seymour Sack, 2003GasCanon! Group

  7. Student Grouping Strategies In Technology Rich Learning Environments At The Intermediate Grade Level

    E-Print Network [OSTI]

    Craig Hare, Jana

    2011-04-18

    in the classroom, the differences were not statistically significant throughout the school year. When analyzed between years, technology rich classrooms showed an increase between Year 1 and Year 2 in Mixed Groups. The results of the correlational analysis...

  8. Vehicle Technologies Office Merit Review 2015: Laser-Assisted Joining Process of Aluminum and Carbon Fiber Components

    Broader source: Energy.gov [DOE]

    Presentation given by Oak Ridge National Laboratory at 2015 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about laser-assisted...

  9. The Laser Astrometric Test of Relativity: Science, Technology, and Mission Design

    E-Print Network [OSTI]

    Slava G. Turyshev; Michael Shao

    2007-01-18

    The Laser Astrometric Test of Relativity (LATOR) experiment is designed to explore general theory of relativity in the close proximity to the Sun -- the most intense gravitational environment in the solar system. Using independent time-series of highly accurate measurements of the Shapiro time-delay (interplanetary laser ranging accurate to 3 mm at 2 AU) and interferometric astrometry (accurate to 0.01 picoradian), LATOR will measure gravitational deflection of light by the solar gravity with accuracy of 1 part in a billion -- a factor ~30,000 better than currently available. LATOR will perform series of highly-accurate tests in its search for cosmological remnants of scalar field in the solar system. We present science, technology and mission design for the LATOR mission.

  10. Science and Engineering Alliance, Inc. (SEA) Activities to Increase Participation of Students from Underrepresented Groups in Science, Technology, Engineering and Mathematics (STEM) Programs

    SciTech Connect (OSTI)

    Robert L. Shepard, PhD.

    2012-04-30

    To Increase Participation of Students from Underrepresented Groups in Science, Technology, Engineering and Mathematics (STEM) Programs.

  11. Laser-Mechanical Drilling for Geothermal Energy: Low-Contact Drilling Technology to Enable Economical EGS Wells

    SciTech Connect (OSTI)

    2010-01-15

    Broad Funding Opportunity Announcement Project: Foro Energy is developing a unique capability and hardware system to transmit high power lasers over long distances via fiber optic cables. This laser power is integrated with a mechanical drilling bit to enable rapid and sustained penetration of hard rock formations too costly to drill with mechanical drilling bits alone. The laser energy that is directed at the rock basically softens the rock, allowing the mechanical bit to more easily remove it. Foro Energy’s laser-assisted drill bits have the potential to be up to 10 times more economical than conventional hard-rock drilling technologies, making them an effective way to access the U.S. energy resources currently locked under hard rock formations.

  12. Low-cost, highly efficient, and tunable ultrafast laser technology based on directly diode-pumped Cr:Colquiriites

    E-Print Network [OSTI]

    Demirbas, Umit

    2010-01-01

    This doctoral project aims to develop robust, ultra low-cost ($5,000-20,000), highly-efficient, and tunable femtosecond laser technology based on diode-pumped Cr:Colquiriite gain media (Cr:LiCAF, Cr3+:LiSAF and Cr:LiSGaF). ...

  13. Modeling and Technologies of Ultrafast Fiber Lasers Brandon G. Bale, Oleg G. Okhitnikov, and Sergei K. Turitsyn

    E-Print Network [OSTI]

    Turitsyn, Sergei K.

    for simplicity, maintenance, and reliability, however, have not been met by conventional ultrafast technology with reliable and cost- effective components, which makes suitably designed fiber lasers real contenders many alignment issues, it also distributes heat generated by optical pumping over the length

  14. Advances in Micro-Scale Laser Peening Technology Y. Lawrence Yao, Wenwu Zhang, and Hongqiang Chen

    E-Print Network [OSTI]

    Yao, Y. Lawrence

    . In modeling improvements, plasma expansion is modeled as laser supported combustion wave, in which radial laser supported combustion (LSC) wave [3]. The 1D results are then modified to consider spatial by an intense (>1GW/cm2 ) laser pulse, the surface layer instantane- ously vaporizes into a high temperature

  15. High-Power Solid-State Lasers from a Laser Glass Perspective

    SciTech Connect (OSTI)

    Campbell, J H; Hayden, J S; Marker, A J

    2010-12-17

    Advances in laser glass compositions and manufacturing have enabled a new class of high-energy/high-power (HEHP), petawatt (PW) and high-average-power (HAP) laser systems that are being used for fusion energy ignition demonstration, fundamental physics research and materials processing, respectively. The requirements for these three laser systems are different necessitating different glasses or groups of glasses. The manufacturing technology is now mature for melting, annealing, fabricating and finishing of laser glasses for all three applications. The laser glass properties of major importance for HEHP, PW and HAP applications are briefly reviewed and the compositions and properties of the most widely used commercial laser glasses summarized. Proposed advances in these three laser systems will require new glasses and new melting methods which are briefly discussed. The challenges presented by these laser systems will likely dominate the field of laser glass development over the next several decades.

  16. Laser programs highlights 1994

    SciTech Connect (OSTI)

    1994-12-31

    This report provides highlights of the Lawrence Livermore National Laboratories` laser programs. Laser uses and technology assessment and utilization are provided.

  17. CHSLT -Center for Holographic Studies and Laser micro-mechaTronics WPI Mechanical Engineering Department/NEST -NanoEngineering, Science, and Technology

    E-Print Network [OSTI]

    Furlong, Cosme

    CHSLT - Center for Holographic Studies and Laser micro-mechaTronics WPI Mechanical Engineering - Center for Holographic Studies and Laser micro-mechaTronics Mechanical Engineering Department Worcester-mechaTronics WPI Mechanical Engineering Department/NEST - NanoEngineering, Science, and Technology #12;CHSLT

  18. A DIELECTRIC-BASED, GeV/m CROSSED-LASER-BEAM

    E-Print Network [OSTI]

    Byer, Robert L.

    µm, operated at a peak laser power of 0.2 GW per accelerator stage, a repetition rate of ~ 30 k on "Laser Technology and Astrophysics" given by R. L. Byer at the 1994 Summer School. ©R. Byer 1994 #12.2 Emittance and Multistage Trajectory Stability 4.3 Phase Cancellation and Group Velocity Control 5. Laser

  19. [To be printed on the headed notepaper of the Administering Organisation or its Technology Transfer Group (if an independent organisation) or the Company

    E-Print Network [OSTI]

    Rambaut, Andrew

    [To be printed on the headed notepaper of the Administering Organisation or its Technology Transfer of Signature:___________________________ [Signed by Head Technology Transfer Office (TTO) or Group on behalf of Administering Organisation or its Technology Transfer Group if independent or if the University does not have

  20. Idaho National Engineering Laboratory Waste Area Groups 1-7 and 10 Technology Logic Diagram. Volume 2

    SciTech Connect (OSTI)

    O`Brien, M.C.; Meservey, R.H.; Little, M.; Ferguson, J.S.; Gilmore, M.C.

    1993-09-01

    The Idaho National Engineering Laboratory (INEL) Technology Logic Diagram (TLD) was developed to provide a decision support tool that relates Environmental Restoration (ER) and Waste Management (WM) problems at the INEL to potential technologies that can remediate these problems. The TLD identifies the research, development, demonstration, testing, and evaluation needed to develop these technologies to a state that allows technology transfer and application to an environmental restoration need. It is essential that follow-on engineering and system studies be conducted to build on the output of this project. These studies will begin by selecting the most promising technologies identified in this TLD and finding an optimum mix of technologies that will provide a socially acceptable balance between cost and risk to meet the site windows of opportunity. The TLD consists of three separate volumes: Volume I includes the purpose and scope of the TLD, a brief history of the INEL Waste Area Groups, and environmental problems they represent. A description of the TLD, definitions of terms, a description of the technology evaluation process, and a summary of each subelement, is presented. Volume II (this volume) describes the overall layout and development of the TLD in logic diagram format. This section addresses the environmental restoration of contaminated INEL sites. Specific INEL problem areas/contaminants are identified along with technology solutions, the status of the technologies, precise science and technology needs, and implementation requirements. Volume III provides the Technology Evaluation Data Sheets (TEDS) for Environmental Restoration and Waste Management (EM) activities that are referenced by a TEDS codenumber in Volume II. Each of these sheets represents a single logic trace across the TLD. These sheets contain more detail than provided for technologies in Volume II.

  1. Laser Programs Highlights 1998

    SciTech Connect (OSTI)

    Lowdermilk, H.; Cassady, C.

    1999-12-01

    This report covers the following topics: Commentary; Laser Programs; Inertial Confinement Fusion/National Ignition Facility (ICF/NIF); Atomic Vapor Laser Isotope Separation (AVLIS); Laser Science and Technology (LS&T); Information Science and Technology Program (IS&T); Strategic Materials Applications Program (SMAP); Medical Technology Program (MTP) and Awards.

  2. University of Rochester Laboratory for Laser Energetics annual report, 1 October 1990--30 September 1991

    SciTech Connect (OSTI)

    Not Available

    1992-01-01

    This report discusses: progress in laser fusion; advanced technology developments; national laser users facility news; and laser system report.

  3. 2772 JOURNAL OF LIGHTWAVE TECHNOLOGY, VOL. 23, NO. 9, SEPTEMBER 2005 Hybrid Electrooptic and Piezoelectric Laser

    E-Print Network [OSTI]

    Gopalan, Venkatraman

    microelectromechanical machines are very useful for scanning a laser beam, the operating frequencies are still at several- electric scanner with device characteristics and then the elec- trooptic effect and the principle of domain ring with a crosspiece beam bridg- ing the inner diameter manufactured using electric discharge

  4. Vehicle Testing and Analysis Group: Center for Transportation Technologies and Systems (CTTS) (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2008-10-01

    Describes NREL's Vehicle Testing and Analysis Group's work in vehicle and fleet evaluations, testing, data, and analysis for government and industry partners.

  5. Laser applications

    SciTech Connect (OSTI)

    Edelson, M.C. )

    1989-11-01

    The breadth of current applications of laser technology is described. It is used as the basis for extrapolating to future application in such activities as AVLIS, SIS, ICP-MS, and RIMs.

  6. Applying IT governance principles of control, coordination, and communication in a shared services technology group

    E-Print Network [OSTI]

    Logan, Wendy-Kay (Wendy-Kay Ruth)

    2011-01-01

    IT governance focuses on how leadership can be effective and efficient in guiding an organization's use of technology to meet business needs. Over the past decade, IT governance has become a key issue of concern for senior ...

  7. Janus Upgrade using brewster angle disk amplifier technology. [Janus laser system

    SciTech Connect (OSTI)

    Hunt, J.; Boben, R.; Blocker, R.; Clark, J.; Henesian, M.; Victoria, J.; Mayo, S.; Patton, H.; Pedersen, K.; Strange, N.; Swain, J.

    1990-10-24

    The Nuclear Test and Experimental Science Program (NTES) has requested that the Laser Program design and price an upgrade to the Janus laser system (JANUS UPGRADE) capable of reliably delivering in excess of 200 joules per beamline in a range of pulse forms to three experiment areas. The facility is to have the following characteristics: three experiment areas, two high energy beams, each with 200--400 joule/1 ns at a wavelength of 1.053 or 1.064 microns, and 125--250 J/1 ns when frequency doubled, one probe beam (0.1 J rated at 30 ps) to be used for interferometry, and reliable operation. The proposed facility would occupy approximately 5600 ft{sup 2} and be located in the Bldg. 174 complex. A block diagram of the entire facility is shown in Fig. 1. The facility is further defined by the Work Breakdown Structure (also shown in Fig. 1). The main elements of the WBS are the conventional facility and modifications thereof (WBS 1), special equipment (WBS 2), the laser (WBS 3), the experiment areas (WBS 4), the controls and data acquisition system (WBS 5), and the project integration (WBS 6). The experiment area has three target chambers and uses diagnostic hardware now in Janus. 12 figs., 4 tabs.

  8. Applying group technology in the operational planning of electronics assembly (multiple machine case) 

    E-Print Network [OSTI]

    Awwad, Ghassan Samir

    1987-01-01

    of PCBs such that the total make span is minimized. The assembly system under consideration consists of multiple non-identical placement machines. The operational planning problem is decomposed into three sub- problems. The three sub-problems are Group...

  9. Comparing Laser Welding Technologies with Friction Stir Welding for Production of Aluminum Tailor-Welded Blanks

    SciTech Connect (OSTI)

    Hovanski, Yuri; Carsley, John; Carlson, Blair; Hartfield-Wunsch, Susan; Pilli, Siva Prasad

    2014-01-15

    A comparison of welding techniques was performed to determine the most effective method for producing aluminum tailor-welded blanks for high volume automotive applications. Aluminum sheet was joined with an emphasis on post weld formability, surface quality and weld speed. Comparative results from several laser based welding techniques along with friction stir welding are presented. The results of this study demonstrate a quantitative comparison of weld methodologies in preparing tailor-welded aluminum stampings for high volume production in the automotive industry. Evaluation of nearly a dozen welding variations ultimately led to down selecting a single process based on post-weld quality and performance.

  10. Critical Reviews in Environmental Science and Technology, 43:21072139, 2013 Copyright Taylor & Francis Group, LLC

    E-Print Network [OSTI]

    Daugulis, Andrew J.

    Bioremediation of Contaminated Soils: An Overview of Conventional and Innovative Technologies M. CONCETTA TOMEI1 and ANDREW J. DAUGULIS2 1 Water Research Institute, C.N.R, Rome, Italy 2 Department of Chemical Engineering, Queen's University, Kingston, Ontario, Canada Bioremediation as a sustainable alternative to chemical

  11. MembraneNewsTwente News magazine of the Membrane Science and Technology Group

    E-Print Network [OSTI]

    Twente, Universiteit

    ) mixed matrix membranes for gas separation applications Salman Shahid Membrane technology-mixed matrix membranes for low and high pressure CO2 /CH4 separations. It especially investigates the effect is an attractive approach for gas separation applications and, more specifically, for CO2 capture because of its

  12. 2/17/2014 TechnologyUses Micro-Windmills to Recharge Cell Phones http://powerelectronics.com/print/blog/technology-uses-micro-windmills-recharge-cell-phones?group_id=17022 1/2

    E-Print Network [OSTI]

    Chiao, Jung-Chih

    2/17/2014 TechnologyUses Micro-Windmills to Recharge Cell Phones http://powerelectronics.com/print/blog/technology-uses-micro-windmills-recharge-cell-phones?group_id=17022 1/2 print | close Technology Uses Micro-Windmills to Recharge Cell Phones Fri, 2014-01-24 14:30 A UT Arlington (Texas) research

  13. Laser Program annual report 1987

    SciTech Connect (OSTI)

    O'Neal, E.M.; Murphy, P.W.; Canada, J.A.; Kirvel, R.D.; Peck, T.; Price, M.E.; Prono, J.K.; Reid, S.G.; Wallerstein, L.; Wright, T.W.

    1989-07-01

    This report discusses the following topics: target design and experiments; target materials development; laboratory x-ray lasers; laser science and technology; high-average-power solid state lasers; and ICF applications studies.

  14. Group specific internal standard technology (GSIST) for simultaneous identification and quantification of small molecules

    DOE Patents [OSTI]

    Adamec, Jiri; Yang, Wen-Chu; Regnier, Fred E

    2014-01-14

    Reagents and methods are provided that permit simultaneous analysis of multiple diverse small molecule analytes present in a complex mixture. Samples are labeled with chemically identical but isotopically distince forms of the labeling reagent, and analyzed using mass spectrometry. A single reagent simultaneously derivatizes multiple small molecule analytes having different reactive functional groups.

  15. Laser Users Eye Test Form University of Cambridge Laser Users Information for Occupational Health

    E-Print Network [OSTI]

    Cambridge, University of

    Laser Users Eye Test Form University of Cambridge Laser Users Information for Occupational Health supervisor or research group Department College Departmental Laser Safety Officer Tel: Information about the laser(s) you will be using Type of Laser Wavelength Laser Classification CW or Pulsed Power or Energy

  16. Laser programs highlights 1993

    SciTech Connect (OSTI)

    1995-06-01

    Over the last two decades, the scope of our laser research has grown immensely. The small, low-power laser systems of our early days have given way to laser systems of record-breaking size and power. Now we are focusing our activities within the target physics and laser science programs to support the ignition and gain goals of the proposed glass-laser National Ignition Facility. In our laser isotope separation work, we completed the most important set of experiments in the history of the AVLIS Program in 1993, which culminated in a spectacularly successful run that met or exceeded all our objectives. We are also developing lasers and laser-related technologies for a variety of energy, commercial, and defense uses. On the horizon are transfers of important technologies for waste treatment, x-ray lithography, communications and security, optical imaging, and remote sensing, among others.

  17. Laser Programs Highlight 1995

    SciTech Connect (OSTI)

    Jacobs, R.R.

    1997-01-31

    Our contributions to laser science and technology and corresponding applications range from concept to design of the National Ignition Facility, transfer of Atomic Vapor Laser Isotope Separation technology to the private sector, and from new initiatives in industry and defense to micro-optics for improving human vision.

  18. Laser Cooling of Matter INTRODUCTION

    E-Print Network [OSTI]

    Kaiser, Robin

    Laser Cooling of Matter INTRODUCTION Laser cooling of neutral atoms in the past decades has been a breakthrough in the understanding of their dy- namics and led to the seminal proposals of laser cooling-Doppler and subrecoil cooling, as well as new technologies, such as semiconductor diode lasers. Most of those

  19. Technolog

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

    focuses on multi-scale, multiphysics approaches to understanding natural systems, "engineering the earth" with sensing and drilling technologies and characterizing geomaterials...

  20. Nuclear Research & Consultancy Group (NRG) develops and provides sustainable nuclear technology for energy, environment, and health. NRG offers a wide range of services to energy

    E-Print Network [OSTI]

    Lindken, Ralph

    Nuclear Research & Consultancy Group (NRG) develops and provides sustainable nuclear technology organizations and various branches of industry - including the nuclear, financial services and medical sectors: Better prediction of the flow and heat transfer in liquid metal cooled nuclear reactors will contribute

  1. Nuclear Research & Consultancy Group (NRG) develops and provides sustainable nuclear technology for energy, environment, and health. NRG offers a wide range of services to energy

    E-Print Network [OSTI]

    Vuik, Kees

    for energy, environment, and health. NRG offers a wide range of services to energy utilities, governmentNuclear Research & Consultancy Group (NRG) develops and provides sustainable nuclear technology organizations and various branches of industry - including the nuclear, financial services and medical sectors

  2. Laser Fusion Energy The High Average Power

    E-Print Network [OSTI]

    Laser Fusion Energy and The High Average Power Program John Sethian Naval Research Laboratory Dec for Inertial Fusion Energy with lasers, direct drive targets and solid wall chambers Lasers DPPSL (LLNL) Kr posters Snead Payne #12;Laser(s) Goals 1. Develop technologies that can meet the fusion energy

  3. LaserFest Celebration

    SciTech Connect (OSTI)

    Dr. Alan Chodos; Elizabeth A. Rogan

    2011-08-25

    LaserFest was the yearlong celebration, during 2010, of the 50th anniversary of the demonstration of the first working laser. The goals of LaserFest were: to highlight the impact of the laser in its manifold commercial, industrial and medical applications, and as a tool for ongoing scientific research; to use the laser as one example that illustrates, more generally, the route from scientific innovation to technological application; to use the laser as a vehicle for outreach, to stimulate interest among students and the public in aspects of physical science; to recognize and honor the pioneers who developed the laser and its many applications; to increase awareness among policymakers of the importance of R&D funding as evidenced by such technology as lasers. One way in which LaserFest sought to meet its goals was to encourage relevant activities at a local level all across the country -- and also abroad -- that would be identified with the larger purposes of the celebration and would carry the LaserFest name. Organizers were encouraged to record and advertise these events through a continually updated web-based calendar. Four projects were explicitly detailed in the proposals: 1) LaserFest on the Road; 2) Videos; 3) Educational material; and 4) Laser Days.

  4. Technologies

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservationBio-Inspired Solar Fuel ProductionRecoverable15/2008Technologies Technologies

  5. Technology

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservationBio-Inspired Solar FuelTechnology /newsroom/_assets/images/s-icon.png Technology

  6. Technologies

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effectWorking With U.S. CoalMexico IndependentMatter and Technologies R&D

  7. Laser Authorisation Form University of Cambridge Personal Details

    E-Print Network [OSTI]

    Cambridge, University of

    Laser Authorisation Form University of Cambridge Personal Details Name Research supervisor or research group Department DEPARTMENT OF EARTH SCIENCES Other Departments where work with lasers will be carried out if applicable Information about the laser(s) you will be using Type of Laser Wavelength Laser

  8. Report on the joint meeting of the Division of Development and Technology Plasma/Wall Interaction and High Heat Flux Materials and Components Task Groups

    SciTech Connect (OSTI)

    Wilson, K.L. (ed.)

    1985-10-01

    This report of the Joint Meeting of the Division of Development and Technology Plasma/Wall Interaction and High Heat Flux Materials and Components Task Groups contains contributing papers in the following areas: Plasma/Materials Interaction Program and Technical Assessment, High Heat Flux Materials and Components Program and Technical Assessment, Pumped Limiters, Ignition Devices, Program Planning Activities, Compact High Power Density Reactor Requirements, Steady State Tokamaks, and Tritium Plasma Experiments. All these areas involve the consideration of High Heat Flux on Materials and the Interaction of the Plasma with the First Wall. Many of the Test Facilities are described as well. (LSP)

  9. GROUP STUDY ROOMS GROUP STUDY ROOMS

    E-Print Network [OSTI]

    Young, R. Michael

    STAFF AREA LEVEL 2 LOBBY bookBot GROUP STUDY ROOMS GROUP STUDY ROOMS GROUPSTUDYROOMS RAIN GARDEN LIBRARY TECHNOLOGY AND MEDIA SPACES GROUP STUDY EVENT AND MEETING SPACES STAFF ONLY STAIRS INSTITUTES AND UNIVERSITY CENTERS #12;GROUP STUDY ROOMS MAKER SPACE LEARNING COMMONS LOCKERS LOCKERS LOCKERS TEACHING

  10. CHSLT -Center for Holographic Studies and Laser micro-mechaTronics Mechanical Engineering Department/NEST -NanoEngineering, Science, and Technology

    E-Print Network [OSTI]

    Furlong, Cosme

    CHSLT - Center for Holographic Studies and Laser micro-mechaTronics Mechanical Engineering November 2014 WORCESTER POLYTECHNIC INSTITUTE MECHANICAL ENGINEERING DEPARTMENT Optical Metrology and NDT interferometry #12;CHSLT - Center for Holographic Studies and Laser micro-mechaTronics Mechanical Engineering

  11. The Group for Sustainability and Technology (SusTec) within the Department of Management, Technology, and Economics of ETH Zurich investigates organizational, technological and institutional change in the energy

    E-Print Network [OSTI]

    , but are not limited to: innovation studies, evolutionary economics, and technology assessments. Your work should of investigation should be related to energy, e.g. renewable energy, energy efficiency, energy storage, electric

  12. Lasers for industrial chemistry

    SciTech Connect (OSTI)

    Jensen, R.J.; Robinson, C.P.

    1980-04-01

    Three categories for application of laser technology to applied-photochemistry research are set forth as (1) laser-based analytical techniques, (2) studies of chemical-reaction dynamics, and (3) chemical reactions with primary energy or control provided by lasers. Specific systems being developed and chemical processes being monitored by laser-techniques are described. Studies of laser diagnostics for coal gasification now involving measurement of coal gases downstream of the scrubber are discussed, and potential applications of laser techniques to measurements of the hot-gas regions of the gasifier itself are forecast. A technique developed for the monitoring of gaseous UF/sub 6/ in process streams by measurement of its fluorescence after irradiation with short uv pulses from tunable lasers indicates that this same technique might be applied to many other molecules by proper choice of exciting laser wavelength and monitor. Special laser techniques for monitoring the presence of harmfurst-calf heifer performance was not affected by the feeding of an ensiled cattle waste-peanut hulls mixture compared to a conventional feeding program.

  13. Ultranarrow linewidth waveguide excimer lasers

    SciTech Connect (OSTI)

    Christensen, C.P. ); Feldman, B.J.; Huston, A.

    1989-09-01

    We have constructed a single longitudinal mode XeCl laser using microwave discharge waveguide laser technology. The pulse duration, repetition rate, and simplicity of construction associated with waveguide excimer lasers lend this system unique capabilities and a broad utility for interfacing with other excimer devices. The coherence length of the laser emission has been found to be {similar to}6 m with a corresponding bandwidth of {l brace}22 MHz that is near the transform limit. The laser has been used to demonstrate pulsed UV Doppler velocity measurement in a simple homodyne configuration.

  14. Laser cooling of solids

    SciTech Connect (OSTI)

    Epstein, Richard I; Sheik-bahae, Mansoor

    2008-01-01

    We present an overview of solid-state optical refrigeration also known as laser cooling in solids by fluorescence upconversion. The idea of cooling a solid-state optical material by simply shining a laser beam onto it may sound counter intuitive but is rapidly becoming a promising technology for future cryocooler. We chart the evolution of this science in rare-earth doped solids and semiconductors.

  15. CHSLT -Center for Holographic Studies and Laser micro-mechaTronics Mechanical Engineering Department/NEST -NanoEngineering, Science, and Technology

    E-Print Network [OSTI]

    Furlong, Cosme

    CHSLT - Center for Holographic Studies and Laser micro-mechaTronics Mechanical Engineering WORCESTER POLYTECHNIC INSTITUTE MECHANICAL ENGINEERING DEPARTMENT Optical Metrology and NDT ME-593L, B'2014 #12;CHSLT - Center for Holographic Studies and Laser micro-mechaTronics Mechanical Engineering

  16. CHSLT -Center for Holographic Studies and Laser micro-mechaTronics Mechanical Engineering Department/NEST -NanoEngineering, Science, and Technology

    E-Print Network [OSTI]

    Furlong, Cosme

    CHSLT - Center for Holographic Studies and Laser micro-mechaTronics Mechanical Engineering 2014 WORCESTER POLYTECHNIC INSTITUTE MECHANICAL ENGINEERING DEPARTMENT Optical Metrology and NDT ME-593 and Laser micro-mechaTronics Mechanical Engineering Department/NEST - NanoEngineering, Science

  17. Laser system design for the generation of a sodium-layer laser guide star

    SciTech Connect (OSTI)

    Friedman, H.W.

    1993-01-01

    The design considerations for a laser system used to generate a sodium-layer guide star are presented. Laser technology developed for the Atomic Vapor Laser Isotope Separation (AVLIS) Program is shown to be directly relevant to this problem and results of a demonstration using the AVLIS laser to generate such a guide star are shown. The design of a compact laser suitable for use at a large telescope such as the Keck is also presented.

  18. Reference Manual Supercomputing Technologies Group

    E-Print Network [OSTI]

    on a Pentium 4 running a patched Fedora Core 2 kernel. · Many bug fixes. · Tested on redhat 7.3 (x86), fedora

  19. Stochastic HPSG Language Technology Group

    E-Print Network [OSTI]

    - terminal must sum to one. We associate probabil- ities with partial phrase markers, which are sets leaves of the partial tree. Phrase markers are those partial phrase markers which have no non-terminal. · If T is a partial phrase marker, and T' is a partial phrase marker which differs from it only in that a single non-terminal

  20. Laser programs highlights, July--August 1990

    SciTech Connect (OSTI)

    Not Available

    1990-01-01

    Laser research at LLNL is divided into five major programmatic areas: inertial confinement fusion (ICF), uranium atomic vapor laser isotope separation (U-AVLIS), special (plutonium) isotope separation (SIS), laser technology, and advanced applications. We have made important progress this past year in each of these areas. This report covers the current state of these 5 areas.

  1. Laser beam temporal and spatial tailoring for laser shock processing

    DOE Patents [OSTI]

    Hackel, Lloyd (Livermore, CA); Dane, C. Brent (Livermore, CA)

    2001-01-01

    Techniques are provided for formatting laser pulse spatial shape and for effectively and efficiently delivering the laser energy to a work surface in the laser shock process. An appropriately formatted pulse helps to eliminate breakdown and generate uniform shocks. The invention uses a high power laser technology capable of meeting the laser requirements for a high throughput process, that is, a laser which can treat many square centimeters of surface area per second. The shock process has a broad range of applications, especially in the aerospace industry, where treating parts to reduce or eliminate corrosion failure is very important. The invention may be used for treating metal components to improve strength and corrosion resistance. The invention has a broad range of applications for parts that are currently shot peened and/or require peening by means other than shot peening. Major applications for the invention are in the automotive and aerospace industries for components such as turbine blades, compressor components, gears, etc.

  2. LLE 1998 annual report, October 1997--September 1998. Inertial fusion program and National Laser Users` Facility program

    SciTech Connect (OSTI)

    NONE

    1999-01-01

    This report summarizes research at the Laboratory for Laser Energetics (LLE), the operation of the National Laser Users` Facility (NLUF), and programs involving the education of high school, undergraduate, and graduate students for FY98. Research summaries cover: progress in laser fusion; diagnostic development; laser and optical technology; and advanced technology for laser targets.

  3. Laser microphone

    DOE Patents [OSTI]

    Veligdan, James T. (Manorville, NY)

    2000-11-14

    A microphone for detecting sound pressure waves includes a laser resonator having a laser gain material aligned coaxially between a pair of first and second mirrors for producing a laser beam. A reference cell is disposed between the laser material and one of the mirrors for transmitting a reference portion of the laser beam between the mirrors. A sensing cell is disposed between the laser material and one of the mirrors, and is laterally displaced from the reference cell for transmitting a signal portion of the laser beam, with the sensing cell being open for receiving the sound waves. A photodetector is disposed in optical communication with the first mirror for receiving the laser beam, and produces an acoustic signal therefrom for the sound waves.

  4. Laser ignition

    DOE Patents [OSTI]

    Early, James W.; Lester, Charles S.

    2004-01-13

    Sequenced pulses of light from an excitation laser with at least two resonator cavities with separate output couplers are directed through a light modulator and a first polarzing analyzer. A portion of the light not rejected by the first polarizing analyzer is transported through a first optical fiber into a first ignitor laser rod in an ignitor laser. Another portion of the light is rejected by the first polarizing analyzer and directed through a halfwave plate into a second polarization analyzer. A first portion of the output of the second polarization analyzer passes through the second polarization analyzer to a second, oscillator, laser rod in the ignitor laser. A second portion of the output of the second polarization analyzer is redirected by the second polarization analyzer to a second optical fiber which delays the beam before the beam is combined with output of the first ignitor laser rod. Output of the second laser rod in the ignitor laser is directed into the first ignitor laser rod which was energized by light passing through the first polarizing analyzer. Combined output of the first ignitor laser rod and output of the second optical fiber is focused into a combustible fuel where the first short duration, high peak power pulse from the ignitor laser ignites the fuel and the second long duration, low peak power pulse directly from the excitation laser sustains the combustion.

  5. Cr-doped scandium borate laser

    DOE Patents [OSTI]

    Chai, Bruce H. (Bridgewater, NJ); Lai, Shui T. (Florham Park, NJ); Long, Margaret N. (Landing, NJ)

    1989-01-01

    A broadly wavelength-tunable laser is provided which comprises as the laser medium a single crystal of MBO.sub.3 :Cr.sup.3+, where M is selected from the group of Sc, In and Lu. The laser may be operated over a broad temperature range from cryogenic temperatures to elevated temperatures. Emission is in a spectral range from red to infrared, and the laser is useful in the fields of defense, communications, isotope separation, photochemistry, etc.

  6. Laser device

    DOE Patents [OSTI]

    Scott, Jill R. (Idaho Falls, ID); Tremblay, Paul L. (Idaho Falls, ID)

    2007-07-10

    A laser device includes a target position, an optical component separated a distance J from the target position, and a laser energy source separated a distance H from the optical component, distance H being greater than distance J. A laser source manipulation mechanism exhibits a mechanical resolution of positioning the laser source. The mechanical resolution is less than a spatial resolution of laser energy at the target position as directed through the optical component. A vertical and a lateral index that intersect at an origin can be defined for the optical component. The manipulation mechanism can auto align laser aim through the origin during laser source motion. The laser source manipulation mechanism can include a mechanical index. The mechanical index can include a pivot point for laser source lateral motion and a reference point for laser source vertical motion. The target position can be located within an adverse environment including at least one of a high magnetic field, a vacuum system, a high pressure system, and a hazardous zone. The laser source and an electro-mechanical part of the manipulation mechanism can be located outside the adverse environment. The manipulation mechanism can include a Peaucellier linkage.

  7. Laser device

    DOE Patents [OSTI]

    Scott, Jill R.; Tremblay, Paul L.

    2004-11-23

    A laser device includes a target position, an optical component separated a distance J from the target position, and a laser energy source separated a distance H from the optical component, distance H being greater than distance J. A laser source manipulation mechanism exhibits a mechanical resolution of positioning the laser source. The mechanical resolution is less than a spatial resolution of laser energy at the target position as directed through the optical component. A vertical and a lateral index that intersect at an origin can be defined for the optical component. The manipulation mechanism can auto align laser aim through the origin during laser source motion. The laser source manipulation mechanism can include a mechanical index. The mechanical index can include a pivot point for laser source lateral motion and a reference point for laser source vertical motion. The target position can be located within an adverse environment including at least one of a high magnetic field, a vacuum system, a high pressure system, and a hazardous zone. The laser source and an electro-mechanical part of the manipulation mechanism can be located outside the adverse environment. The manipulation mechanism can include a Peaucellier linkage.

  8. Laser ignition

    DOE Patents [OSTI]

    Early, James W. (Los Alamos, NM); Lester, Charles S. (San Juan Pueblo, NM)

    2003-01-01

    In the apparatus of the invention, a first excitation laser or other excitation light source is used in tandem with an ignitor laser to provide a compact, durable, engine deployable fuel ignition laser system. Reliable fuel ignition is provided over a wide range of fuel conditions by using a single remote excitation light source for one or more small lasers located proximate to one or more fuel combustion zones. In a third embodiment, alternating short and long pulses of light from the excitation light source are directed into the ignitor laser. Each of the embodiments of the invention can be multiplexed so as to provide laser light energy sequentially to more than one ignitor laser.

  9. Fs-laser processing of polydimethylsiloxane

    SciTech Connect (OSTI)

    Atanasov, Petar A., E-mail: paatanas@ie.bas.bg; Nedyalkov, Nikolay N. [Institute of Electronics, Bulgarian Academy of Sciences, 72 Tsarigradsko Shose, Sofia 1784 (Bulgaria); Valova, Eugenia I.; Georgieva, Zhenya S.; Armyanov, Stefan A.; Kolev, Konstantin N. [Rostislaw Kaischew Institute of Physical Chemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Block 11, Sofia 1113 (Bulgaria); Amoruso, Salvatore; Wang, Xuan; Bruzzese, Ricardo [CNR-SPIN, Dipartimento di Scienze Fisiche, Universita degli Studi di Napoli Federico II, Complesso Universitario di Monte S. Angelo, Via Cintia, I-80126 Napoli (Italy); Sawczak, Miroslaw; ?liwi?ski, Gerard [Photophysics Department, The Szewalski Institute, Polish Academy of Sciences, 14 Fiszera St, 80-231 Gda?sk (Poland)

    2014-07-14

    We present an experimental analysis on surface structuring of polydimethylsiloxane films with UV (263?nm) femtosecond laser pulses, in air. Laser processed areas are analyzed by optical microscopy, SEM, and ?-Raman spectroscopy. The laser-treated sample shows the formation of a randomly nanostructured surface morphology. ?-Raman spectra, carried out at both 514 and 785?nm excitation wavelengths, prior and after laser treatment allow evidencing the changes in the sample structure. The influence of the laser fluence on the surface morphology is studied. Finally, successful electro-less metallization of the laser-processed sample is achieved, even after several months from the laser-treatment contrary to previous observation with nanosecond pulses. Our findings address the effectiveness of fs-laser treatment and chemical metallization of polydimethylsiloxane films with perspective technological interest in micro-fabrication devices for MEMS and nano-electromechanical systems.

  10. INTERSTATE WASTE TECHNOLOGIES THERMOSELECT TECHNOLOGY

    E-Print Network [OSTI]

    Columbia University

    1 INTERSTATE WASTE TECHNOLOGIES THERMOSELECT TECHNOLOGY AN OVERVIEW Presented to the DELAWARE SOLID WASTE MANAGEMENT TECHNICAL WORKING GROUP January 10, 2006 #12;2 INTERSTATE WASTE MANAGEMENT ALLIANCE and maintenance (30 years) ­ Will guarantee performance and Operation and Maintenance ­ Serves solid waste

  11. Laser scribe optimization study. Final report

    SciTech Connect (OSTI)

    Wannamaker, A.L.

    1996-09-01

    The laser scribe characterization/optimization project was initiated to better understand what factors influence response variables of the laser marking process. The laser marking system is utilized to indelibly identify weapon system components. Many components have limited field life, and traceability to production origin is critical. In many cases, the reliability of the weapon system and the safety of the users can be attributed to individual and subassembly component fabrication processes. Laser beam penetration of the substrate material may affect product function. The design agency for the DOE had requested that Federal Manufacturing and Technologies characterize the laser marking process and implement controls on critical process parameters.

  12. Advanced uranium enrichment technologies

    SciTech Connect (OSTI)

    Merriman, R.

    1983-03-10

    The Advanced Gas Centrifuge and Atomic Vapor Laser Isotope Separation methods are described. The status and potential of the technologies are summarized, the programs outlined, and the economic incentives are noted. How the advanced technologies, once demonstrated, might be deployed so that SWV costs in the 1990s can be significantly reduced is described.

  13. High Power Laser Innovation Sparks Geothermal Power Potential...

    Energy Savers [EERE]

    project partner Foro Energy lab tests a high power laser tool with a patented technology that could maximize heat recovery from geothermal wells. Source: Foro Energy....

  14. High Power Laser Innovation Sparks Geothermal Power Potential...

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

    Energy Department's project partner Foro Energy lab tests a high power laser tool with a patented technology that could maximize heat recovery from geothermal wells. Source: Foro...

  15. High repetition rate fiber and integrated waveguide femtosecond lasers

    E-Print Network [OSTI]

    Sander, Michelle Y. (Michelle Yen-Ling)

    2012-01-01

    Femtosecond lasers and the development of frequency combs have revolutionized multiple fields like metrology, spectroscopy, medical diagnostics and optical communications. However, to enable wider adoption of the technology ...

  16. Laser device

    DOE Patents [OSTI]

    Scott, Jill R. (Idaho Falls, ID); Tremblay, Paul L. (Idaho Falls, ID)

    2008-08-19

    A laser device includes a virtual source configured to aim laser energy that originates from a true source. The virtual source has a vertical rotational axis during vertical motion of the virtual source and the vertical axis passes through an exit point from which the laser energy emanates independent of virtual source position. The emanating laser energy is collinear with an orientation line. The laser device includes a virtual source manipulation mechanism that positions the virtual source. The manipulation mechanism has a center of lateral pivot approximately coincident with a lateral index and a center of vertical pivot approximately coincident with a vertical index. The vertical index and lateral index intersect at an index origin. The virtual source and manipulation mechanism auto align the orientation line through the index origin during virtual source motion.

  17. Enriching stable isotopes: Alternative use for Urenco technology

    SciTech Connect (OSTI)

    Rakhorst, H.; de Jong, P.G.T.; Dawson, P.D.

    1996-12-31

    The International Urenco Group utilizes a technologically advanced centrifuge process to enrich uranium in the fissionable isotope {sup 235}U. The group operates plants in the United Kingdom, the Netherlands, and Germany and currently holds a 10% share of the multibillion dollar world enrichment market. In the early 1990s, Urenco embarked on a strategy of building on the company`s uniquely advanced centrifuge process and laser isotope separation (LIS) experience to enrich nonradioactive isotopes colloquially known as stable isotopes. This paper summarizes the present status of Urenco`s stable isotopes business.

  18. Digital multimirror devices for precision laser micromachining

    E-Print Network [OSTI]

    DMD LIFT results 24 PMMA donors New 3D printing technology! BiTe semiconductor film New laser 3D printing facility...An ORC breakthrough 75 µm #12;Summary · DMDs are very useful for precise ablation

  19. Laser a Controlled Assistant in Agriculture Stoyan Dinoev

    E-Print Network [OSTI]

    Borissova, Daniela

    86 Laser a Controlled Assistant in Agriculture Stoyan Dinoev Institute of Information Technologies, 1113 Sofia Introduction The results achieved in the application of laser irradiation of plant organisms still continue to attract the scientific interest ­ in the past realized by He-Ne lasers, and nowadays

  20. Electron Injection by Dephasing Electrons with Laser Fields

    E-Print Network [OSTI]

    Umstadter, Donald

    mechanism, resultant beams will be similar due to wave structure. Also, most schemes employ the same basic. INTRODUCTION Laser-plasma based acceleration coupled with CPA laser technology has become the topic of much for x-ray gener- ation or high-energy physics has yet to be demonstrated by use of laser wake- elds

  1. Laser induced electron acceleration in vacuum K. P. Singha)

    E-Print Network [OSTI]

    Singh, Kunwar Pal

    of the laser wave and initial electron energy. The electric field of the laser wave is taken as E x^A0 cos to much higher energies.4,5 In the beat wave scheme, the laser exerts an axial ponderomotive force of Technology, New Delhi-110016, India Received 12 September 2003; accepted 21 November 2003 Electron

  2. Information visualization for in-car communication processes Michael Sedlmair, BMW Group Research and Technology, Germany, Michael.Sedlmair@bmw.de

    E-Print Network [OSTI]

    Information visualization for in-car communication processes Michael Sedlmair, BMW Group Research.Butz@ifi.lmu.de Abstract Modern cars provide a large spectrum of electronic functionality which is realized by a great complexity of these in- car communication networks challenges developers in terms of understandability

  3. Minutes from Durability Working Group Kick-off meeting

    Broader source: Energy.gov [DOE]

    Minutes from Durability Working Group Kick-off meeting sponsored by DOE Fuel Cell Technologies Program

  4. Laser Optomechanics

    E-Print Network [OSTI]

    Yang, Weijian; Ng, Kar Wei; Rao, Yi; Chase, Christopher; Chang-Hasnain, Connie J

    2015-01-01

    Cavity optomechanics explores the coupling between the optical field and the mechanical oscillation to induce cooling and regenerative oscillation in a mechanical oscillator. So far, optomechanics relies on the detuning between the cavity and an external pump laser, where the laser acts only as a power supply. Here, we report a new scheme with mutual coupling between a mechanical oscillator that supports a mirror of a vertical-cavity surface-emitting laser (VCSEL) and the optical field, greatly enhancing the light-matter energy transfer. In this work, we used an ultra-light-weight (130 pg) high-contrast-grating (HCG) mirror in a VCSEL, whose reflectivity spectrum is designed to facilitate strong optomechanical coupling, to demonstrate optomechanically-induced regenerative oscillation of the laser optomechanical cavity with > 550 nm self-oscillation amplitude of the micro-mechanical oscillator, two to three orders of magnitude larger than typical. This new scheme not only offers an efficient approach for high-...

  5. Laser EYE SURGERY LASIK and Excimer Lasers

    E-Print Network [OSTI]

    Hansma, Paul

    Laser EYE SURGERY LASIK and Excimer Lasers Michael Hutchins #12;The PROBLEM opia - near sightedness - Laser Assisted in SItu Keratomileusis atomileusis is the procedure of opening the eye and ring the cornea. SIK uses an excimer laser to perform the alterations an er a knife or a femtosecond laser

  6. Laser and gas centrifuge enrichment

    SciTech Connect (OSTI)

    Heinonen, Olli

    2014-05-09

    Principles of uranium isotope enrichment using various laser and gas centrifuge techniques are briefly discussed. Examples on production of high enriched uranium are given. Concerns regarding the possibility of using low end technologies to produce weapons grade uranium are explained. Based on current assessments commercial enrichment services are able to cover the global needs of enriched uranium in the foreseeable future.

  7. Ablative Laser Propulsion: An Update, Part II

    SciTech Connect (OSTI)

    Pakhomov, Andrew V.; Lin Jun; Thompson, M. Shane

    2004-03-30

    This paper presents an updated review of studies on Ablative Laser Propulsion conducted by the Laser Propulsion Group (LPG) at the University of Alabama in Huntsville. In particular, we describe the experimental technique developed for determination of specific impulses from plasma plume imaging with an intensified CCD camera.

  8. Ablative Laser Propulsion: An Update, Part I

    SciTech Connect (OSTI)

    Pakhomov, Andrew V.; Cohen, Timothy; Lin Jun; Thompson, M. Shane; Herren, Kenneth A.

    2004-03-30

    This paper presents an updated review of studies on Ablative Laser Propulsion conducted by the Laser Propulsion Group (LPG) at the University of Alabama in Huntsville. In particular, we describe the newest results of our experimental study of specific impulses and coupling coefficients achieved by double-pulsed ablation of graphite, aluminum, copper and lead targets.

  9. Multifrequency, single pass free electron laser

    DOE Patents [OSTI]

    Szoke, Abraham (Fremont, CA); Prosnitz, Donald (Walnut Creek, CA)

    1985-01-01

    A method for simultaneous amplification of laser beams with a sequence of frequencies in a single pass, using a relativistic beam of electrons grouped in a sequence of energies corresponding to the sequence of laser beam frequencies. The method allows electrons to pass from one potential well or "bucket" to another adjacent bucket, thus increasing efficiency of trapping and energy conversion.

  10. The High Average Power Laser Program 15th HAPL meeting

    E-Print Network [OSTI]

    , 2006 #12;2 The HAPL team is developing the science, technology and architecture needed for a laser1 The High Average Power Laser Program 15th HAPL meeting Aug 8 & 9, 2006 General Atomics Scientific Inst 16. Optiswitch Technology 17. ESLI Electricity Generator Electricity Generator Reaction

  11. Diagnostic and therapeutic applications of diode lasers and solid state lasers in medicine

    SciTech Connect (OSTI)

    Jacques, S.L. . Cancer Center); Welch, A.J. ); Motamedi, M. . Medical Branch); Rastegar, S. ); Tittel, F. ); Esterowitz, L. )

    1992-05-01

    The Texas Medical Center in Houston and the nearby UT Medical Branch at Galveston together constitute a major center of medical research activities. Laser applications in medicine are under development with the engineering assistance of the colloborating engineering centers at Rice University, UT-Austin, and Texas A M Univ. In addition, this collective is collaborating with the Naval Research Laboratory, where new developments in laser design are underway, in order to transfer promising new laser technology rapidly into the medical environment.

  12. Group X

    SciTech Connect (OSTI)

    Fields, Susannah

    2007-08-16

    This project is currently under contract for research through the Department of Homeland Security until 2011. The group I was responsible for studying has to remain confidential so as not to affect the current project. All dates, reference links and authors, and other distinguishing characteristics of the original group have been removed from this report. All references to the name of this group or the individual splinter groups has been changed to 'Group X'. I have been collecting texts from a variety of sources intended for the use of recruiting and radicalizing members for Group X splinter groups for the purpose of researching the motivation and intent of leaders of those groups and their influence over the likelihood of group radicalization. This work included visiting many Group X websites to find information on splinter group leaders and finding their statements to new and old members. This proved difficult because the splinter groups of Group X are united in beliefs, but differ in public opinion. They are eager to tear each other down, prove their superiority, and yet remain anonymous. After a few weeks of intense searching, a list of eight recruiting texts and eight radicalizing texts from a variety of Group X leaders were compiled.

  13. Experts in Defense: How China’s Academicians Contribute to Its Defense Science and Technology Development

    E-Print Network [OSTI]

    WILSON, Jordan

    2015-01-01

    leader Nuclear propulsion and basic nuclear technology Groupmember Nuclear weapons technology Group leader Precisionrockets Information technology and computing Nuclear Medical

  14. Analysis of operational, institutional and international limitations for alternative fuel vehicles and technologies: Means/methods for implementing changes. [Public fleet groups--information needs

    SciTech Connect (OSTI)

    Not Available

    1992-07-01

    This project focused upon the development of an approach to assist public fleet managers in evaluating the characteristics and availability of alternative fuels (AF's) and alternative fuel vehicles (AFV's) that will serve as possible replacements for vehicles currently serving the needs of various public entities. Also of concern were the institutional/international limitations for alternative fuels and alternative fuel vehicles. The City of Detroit and other public agencies in the Detroit area were the particular focus for the activities. As the development and initial stages of use of alternative fuels and alternative fuel vehicles proceeds, there will be an increasing need to provide information and guidance to decision-makers regarding differences in requirements and features of these fuels and vehicles. There wig be true differences in requirements for servicing, managing, and regulating. There will also be misunderstanding and misperception. There have been volumes of data collected on AFV'S, and as technology is improved, new data is constantly added. There are not, however, condensed and effective sources of information for public vehicle fleet managers on vehicle and equipment sources, characteristics, performance, costs, and environmental benefits. While theoretical modeling of public fleet requirements has been done, there do not seem to be readily available practical''. There is a need to provide the best possible information and means to minimize the problems for introducing the effective use of alternative fuels and alternative fuel vehicles.

  15. Laser separation of uranium chosen for scaleup. [Atomic vapor laser isotope separation, molecular laser isotope separation, and plasma separation process

    SciTech Connect (OSTI)

    Rawls, R.L.

    1982-05-17

    Atomic vapor laser isotope separation (AVLIS) has been selected by the Department of Energy to go into large-scale engineering development and demonstration over two other advanced technologies, molecular laser isotope separation and plasma separation. DOE will continue to support development of another uranium enrichment technology, gas centrifugation. By or around 1990, the most promising gas centrifuge technique will be compared to the further developed AVLIS process, and a selection will be made between the two to replace the current technology, gaseous diffusion. The AVLIS process, plasma separation, and molecular laser isotope separation use the elective absorption of radiation of a particular energy level by the /sup 235/U isotope. The plasma separation process selectively energizes /sup 235/U by ion cyclotron resonance. The AVLIS and molecular laser isotope separation processes both use a carefully tuned laser to excite /sup 235/U isotope selectively. In the AVLIS process, uranium metal feed material is melted and vaporized to form an atomic uranium vapor stream. When this vapor stream passes through the beam of copper vapor lasers, the /sup 235/U atoms absorb the light and become ionized. These ionized atoms are collected by electromagnetic fields while the neutral /sup 238/U atoms pass through the magnetic field and are collected as tailings. The AVLIS process has the potential for significantly reducing the cost of enriching uranium. The status of dvelopment, cost, advantages and drawbacks of the five processes, (gaseous diffusion, gas centrifugation, AVLIS, molecular laser separation, plasma separation) are discussed. (ATT)

  16. Laser separation of uranium chosen for scaleup. [Atomic vapor laser isotope separation, molecular laser isotope separation plasma separation process

    SciTech Connect (OSTI)

    Rawls, R.L.

    1982-05-17

    Atomic vapor laser isotope separation (AVLIS) has been selected by the Department of Energy to go into large-scale engineering development and demonstration over two other advanced technologies, molecular laser isotope separation and plasma separation. DOE will continue to support development of another uranium enrichment technology, gas centrifugation. By or around 1990, the most promising gas centrifuge technique will be compared to the further developed AVLIS process, and a selection will be made between the two to replace the current technology, gaseous diffusion. The AVLIS process, plasma separation, and molecular laser isotope separation use the selective absorption of radiation of a particular energy level by the /sup 235/U isotope. The plasma separation process selectively energizes /sup 235/U by ion cyclotron resonance. The AVLIS and molecular laser isotope separation processes both use a carefully tuned laser to excite /sup 235/U isotope selectively. In the AVLIS process, uranium metal feed material is melted and vaporized to from an atomic uranium vapor stream. When this vapor stream passes through the beam of copper vapor lasers, the /sup 235/U atoms absorb the light and become ionized. These ionized atoms are collected by electromagnetic fields while the neutral /sup 238/U atoms pass through the magnetic field and are collected as tailings. The AVLIS process has the potential for significantly reducing the cost of enriching uranium. The status of development, cost, advantages and drawbacks of the five processes (gaseous diffusion, gas centrifugation, AVLIS, molecular laser separation, plasma separation) are discussed. (ATT)

  17. Laser Program annual report, 1985

    SciTech Connect (OSTI)

    Rufer, M.L.; Murphy, P.W.

    1986-11-01

    This volume presents the unclassified activities and accomplishments of the Inertial Confinement Fusion and Advanced Laser Development elements of the Laser Program at the Lawrence Livermore National Laboratory for the calendar year 1985. This report has been organized into major sections that correspond to our principal technical activities. Section 1 provides an overview. Section 2 comprises work in target theory, design, and code development. Target development and fabrication and the related topics in materials science are contained in Section 3. Section 4 presents work in experiments and diagnostics and includes developments in data acquisition and management capabilities. In Section 5 laser system (Nova) operation and maintenance are discussed. Activities related to supporting laser and optical technologies are described in Section 6. Basic laser research and development is reported in Section 7. Section 8 contains the results of studies in ICF applications where the work reported deals principally with the production of electric power with ICF. Finally, Section 9 is a comprehensive discussion of work to date on solid state lasers for average power applications. Individual sections, two through nine, have been cataloged separately.

  18. Manufacturing laser glass by continuous melting

    SciTech Connect (OSTI)

    Campbell, J H; Suratwala, T; krenitsky, S; Takeuchi, K

    2000-07-01

    A novel, continuous melting process is being used to manufacture meter-sized plates of laser glass at a rate 20-times faster, 5-times cheaper, and with 2-3 times better optical quality than with previous one-at-a-time, ''discontinuous'' technology processes. This new technology for manufacturing laser glass, which is arguably the most difficult continuously-melted optical material ever produced, comes as a result of a $60 million, six-year joint R&D program between government and industry. The glasses manufactured by the new continuous melting process are Nd-doped phosphate-based glasses and are marketed under the product names LG-770 (Schott Glass Technologies) and LHG-8 (Hoya Corporation USA). With this advance in glass manufacturing technology, it is now possible to construct high-energy, high-peak-power lasers for use in fusion energy development, national defense, and basic physics research that would have been impractical to build using the old melting technology. The development of continuously melted laser glass required technological advances that have lead to improvements in the manufacture of other optical glass products as well. For example, advances in forming, annealing, and conditioning steps of the laser glass continuous melting process are now being used in manufacture of other large-size optical glasses.

  19. Direct laser acceleration of electrons in free-space

    E-Print Network [OSTI]

    Carbajo, Sergio; Wong, Liang Jie; Miller, R J Dwayne; Kärtner, Franz X

    2015-01-01

    Compact laser-driven accelerators are versatile and powerful tools of unarguable relevance on societal grounds for the diverse purposes of science, health, security, and technology because they bring enormous practicality to state-of-the-art achievements of conventional radio-frequency accelerators. Current benchmarking laser-based technologies rely on a medium to assist the light-matter interaction, which impose material limitations or strongly inhomogeneous fields. The advent of few cycle ultra-intense radially polarized lasers has materialized an extensively studied novel accelerator that adopts the simplest form of laser acceleration and is unique in requiring no medium to achieve strong longitudinal energy transfer directly from laser to particle. Here we present the first observation of direct longitudinal laser acceleration of non-relativistic electrons that undergo highly-directional multi-GeV/m accelerating gradients. This demonstration opens a new frontier for direct laser-driven particle accelerati...

  20. Sandia Energy - Nonlinear Laser Spectroscopy

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

    Nonlinear Laser Spectroscopy Home Transportation Energy Predictive Simulation of Engines Diagnostics Gas-Phase Diagnostics Nonlinear Laser Spectroscopy Nonlinear Laser...

  1. High-quality laser cutting of stainless steel in inert gas atmosphere by ytterbium fibre and CO{sub 2} lasers

    SciTech Connect (OSTI)

    Golyshev, A A; Malikov, A G; Orishich, A M; Shulyat'ev, V B [S.A. Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch, Russian Academy of Sciences, Novosibirsk (Russian Federation)

    2014-03-28

    Processes of cutting stainless steel by ytterbium fibre and CO{sub 2} lasers have been experimentally compared. The cut surface roughnesses for 3- and 5-mm-thick stainless steel sheets are determined. The absorption coefficient of laser radiation during cutting is measured. It is established that the power absorbed by metal during cutting by the CO{sub 2} laser exceeds that for the ytterbium laser (provided that the cutting speed remains the same). The fact that the maximum cutting speed of the CO{sub 2} laser is lower than that of the ytterbium fibre laser is explained. (laser technologies)

  2. LCLS Laser (in Polish)

    E-Print Network [OSTI]

    Romaniuk, R S

    2013-01-01

    The most powerful now in the world, American X-ray laser LCLS (Linac Coherent Light Source), has been working as a research and user facility since 2009. It is further developed to LCLSII machine at the Stanford National Accelerator Laboratory SLAC in Menlo Park CA. In a certain sense, LCLS is a response to the EXFEL machine and a logical extension of LCLS. All these machines are light sources of the fifth generation. EXFELis expected to open user facility in 2016, at a cost of over 1 bil Euro. LCLS II, which design started in 2010, will be operational in 2017. The lasers LCLS, LCLS II and EXFEL use SASE and SEED methods to generate light and are powered by electron liniacs, LCLS by a wrm one, and EXFEL by a cold one. The liniacs have energies approaching 20 GeV, and are around 2 - 3 km in length. EXFEL liniac uses SRF TESLA cavity technology at 1,3GHz. A prototype of EXFEL was FLASH laser. SLAC Laboratory uses effectively over 50 years experience in research, building and exploitation of linear electron acce...

  3. The IDA Technology Stan Franklin

    E-Print Network [OSTI]

    Memphis, University of

    The IDA Technology Stan Franklin and the `Conscious' Software Research Group #12;FedEx Institute of Technology--The IDA Technology 2 Introducing IDA An intelligent software agent capable of entirely of Technology--The IDA Technology 3 IDA Negotiates IDA negotiates with clients in natural language

  4. Science &Technology Facilities Council

    E-Print Network [OSTI]

    Science &Technology Facilities Council Accelerator Science and Technology Centre Daresbury Science)1235 445808 www.stfc.ac.uk/astec Head office, Science and Technology Facilities Council, Polaris House, North Newton Group, La Palma: Joint Astronomy Centre, Hawaii. ASTeC Science Highlights 2009 - 2010 Science

  5. Atomic vapor laser isotope separation

    SciTech Connect (OSTI)

    Stern, R.C.; Paisner, J.A.

    1985-11-08

    Atomic vapor laser isotope separation (AVLIS) is a general and powerful technique. A major present application to the enrichment of uranium for light-water power reactor fuel has been under development for over 10 years. In June 1985 the Department of Energy announced the selection of AVLIS as the technology to meet the nation's future need for the internationally competitive production of uranium separative work. The economic basis for this decision is considered, with an indicated of the constraints placed on the process figures of merit and the process laser system. We then trace an atom through a generic AVLIS separator and give examples of the physical steps encountered, the models used to describe the process physics, the fundamental parameters involved, and the role of diagnostic laser measurements.

  6. Heterodyne laser diagnostic system

    DOE Patents [OSTI]

    Globig, Michael A. (Antioch, CA); Johnson, Michael A. (Pleasanton, CA); Wyeth, Richard W. (Livermore, CA)

    1990-01-01

    The heterodyne laser diagnostic system includes, in one embodiment, an average power pulsed laser optical spectrum analyzer for determining the average power of the pulsed laser. In another embodiment, the system includes a pulsed laser instantaneous optical frequency measurement for determining the instantaneous optical frequency of the pulsed laser.

  7. Identification marking by means of laser peening

    DOE Patents [OSTI]

    Hackel, Lloyd A. (Livermore, CA); Dane, C. Brent (Livermore, CA); Harris, Fritz (Rocklin, CA)

    2002-01-01

    The invention is a method and apparatus for marking components by inducing a shock wave on the surface that results in an indented (strained) layer and a residual compressive stress in the surface layer. One embodiment of the laser peenmarking system rapidly imprints, with single laser pulses, a complete identification code or three-dimensional pattern and leaves the surface in a state of deep residual compressive stress. A state of compressive stress in parts made of metal or other materials is highly desirable to make them resistant to fatigue failure and stress corrosion cracking. This process employs a laser peening system and beam spatial modulation hardware or imaging technology that can be setup to impress full three dimensional patterns into metal surfaces at the pulse rate of the laser, a rate that is at least an order of magnitude faster than competing marking technologies.

  8. Structural features of dielectric oxide laser ceramics

    SciTech Connect (OSTI)

    Kaminskii, Alexandr A; Taranov, A V; Khazanov, E N; Akchurin, M Sh

    2012-10-31

    The relation between the transport characteristics of subterahertz thermal phonons and the structural features of singlephase dielectric crystalline laser ceramics based on cubic oxides synthesised in different technological regimes is studied. The effect of plastic deformation on the formation of the grain structure and intergrain layers (boundaries), as well as on the thermophysical, acoustic, optical, and laser characteristics of the materials is analysed. (active media)

  9. Technology Assessment TECHNOLOGY ASSESSMENT

    E-Print Network [OSTI]

    Rock, Chris

    Technology Assessment 10/14/2004 1 TECHNOLOGY ASSESSMENT STRATEGIC PLAN MISSION STATEMENT Support the Mission of Texas Tech University and the TTU Information Technology Division by providing timely and relevant information and assistance in current and emerging technologies and their practical applications

  10. Bioscience Technology Bioscience Technology

    E-Print Network [OSTI]

    Vertes, Akos

    Bioscience Technology Bioscience Technology Advantage Business Media 100 Enterprise Drive Rockaway, co-director of George Washington University's Institute for Proteomics Technology and Applications-by-point. Manufacturers have stampeded to offer the new technology. Applied Biosystems got out in front in 2004 when

  11. Frequency comb swept lasers

    E-Print Network [OSTI]

    Tsai, Tsung-Han

    We demonstrate a frequency comb (FC) swept laser and a frequency comb Fourier domain mode locked (FC-FDML) laser for applications in optical coherence tomography (OCT). The fiber-based FC swept lasers operate at a sweep ...

  12. Upgraded Coal Interest Group

    SciTech Connect (OSTI)

    Evan Hughes

    2009-01-08

    The Upgraded Coal Interest Group (UCIG) is an EPRI 'users group' that focuses on clean, low-cost options for coal-based power generation. The UCIG covers topics that involve (1) pre-combustion processes, (2) co-firing systems and fuels, and (3) reburn using coal-derived or biomass-derived fuels. The UCIG mission is to preserve and expand the economic use of coal for energy. By reducing the fuel costs and environmental impacts of coal-fired power generation, existing units become more cost effective and thus new units utilizing advanced combustion technologies are more likely to be coal-fired.

  13. Free-electron laser scientist is one of two newly elected American...

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

    Steve Benson Steve Benson of the Free-Electron Laser (FEL) group was recently selected as a 2002 Fellow of the American Physical Society Free-electron laser scientist is one of two...

  14. Plasma wakefields driven by an incoherent combination of laser pulses: A path towards high-average power laser-plasma acceleratorsa)

    E-Print Network [OSTI]

    Geddes, Cameron Guy Robinson

    -average power laser-plasma acceleratorsa) C. Benedetti,b) C. B. Schroeder, E. Esarey, and W. P. Leemans Lawrence enable a technologically simpler path to high-repetition rate, high-average power laserPlasma wakefields driven by an incoherent combination of laser pulses: A path towards high

  15. Laser Stabilization

    SciTech Connect (OSTI)

    Hall, John L.; Taubman, Matthew S.; Ye, Jun

    2010-01-01

    This book chapter covers the basics of the field of stabilizing lasers to optical frequency references such as optical cavities and molecular transitions via the application of servo control systems. These discussions are given with reference to the real-life frequency metrology experienced in Hall-Labs (now Ye-Labs), JILA, University of Colorado. The subjects covered include: the basics of control system stability, a discussion of both the theoretical and experimental limitations, an outline of optical cavity susceptibility to environmental noise, and a brief introduction to the use and limitations of molecular transitions as frequency references.

  16. Fiber Lasers

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.Theory ofDid you not find whatGasEnergyfeature photoTheory ChalkboardFiber Lasers NIF

  17. Laser Roadshow

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJesse Bergkamp Graduate studentScienceLaboratoryandBryanoutreach Laser Roadshow

  18. Parsons Infrastructure & Technology Group, Inc. Preliminary Notice...

    Office of Environmental Management (EM)

    to a sheave pinch-point hazard and moving wire rope during the application of lubricant using a hand swabbing technique. Specific examples are listed below: A. Parsons did...

  19. Network Technologies and Strategies Research Group

    E-Print Network [OSTI]

    Lambert, Patrik

    /Availability ­ Reduction of CAPEX ­ Easier interconnection model (roaming) #12;WiFi deployment models in urban areas

  20. Group colocation behavior in technological social networks

    E-Print Network [OSTI]

    Brown, C.; Lathia, N.; Mascolo, C.; Noulas, A.; Blondel, V.

    2014-08-22

    , Toch E, Hong J, Kittur A, Sadeh N (2010) Bridging the gap between physical lo- cation and online social networks. In: Proceedings of the 12th ACM international conference on Ubiquitous computing. ACM, pp. 119–128. 11. Scellato S, Noulas A, Lambiotte R... physical location and online social networks. In: Proceedings of the 12th ACM international conference on Ubiquitous computing. ACM, pp. 119–128. 11. Scellato S, Noulas A, Lambiotte R, Mascolo C (2011) Socio-spatial properties of online locationbased social...

  1. Biogas Technology Group Ltd | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LISTStar Energy LLC Jump to:Greece:BajoBelpowerBiocar JumpSued GmbHBiogalGmbH Jump

  2. Sabien Technology Group Plc | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop Inc Jump to:Newberg,EnergyEastCarbon Development |SMC CoSWERA/Getting

  3. Sunshine Technology Group | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop Inc JumpHeter BatterySolarfinMarketMember Corp JumpSunfilmSunseeker Energy

  4. Skeleton Technologies Group | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EA EIS ReportEurope GmbH Jump to:Idaho-Utah |RenovablesSixth

  5. BOE Technology Group | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EAandAmminex AAustria GeothermalInformationColor40Lienhwa IndustrialBOE

  6. Nick Wright Named Advanced Technologies Group Lead

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJessework usesofPublications64Newsroom Newsroom NewsroomNichols A.Nick Wright

  7. NIST Measurement Services: cw Laser Power and Energy

    E-Print Network [OSTI]

    . As an agency of the U.S. Commerce Department's Technology Administration, NIST conducts basic and appliedNIST Measurement Services: cw Laser Power and Energy Calibrations at NIST NIST Special Publication and Technology was established in 1988 by Congress to "assist industry in the development of technology

  8. Weapons assessment efficiencies through use of nondestructive laser gas

    E-Print Network [OSTI]

    . The technology was first used on a W76 Retrofit Evaluation System Test unit on May 3, 2012. Significant Cost Savings The cost savings are realized because the technology is nondestructive, allowing weapon components New weapons assessment technology engineered: nondestructive laser welding process far less expensive

  9. Working Group Report on - Space Nuclear Power Systems and Nuclear...

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

    Working Group Report on - Space Nuclear Power Systems and Nuclear Waste Technology R&D Working Group Report on - Space Nuclear Power Systems and Nuclear Waste Technology R&D "Even...

  10. 1981 laser program annual report

    SciTech Connect (OSTI)

    Not Available

    1982-08-01

    This report is published in sections that correspond to the division of technical activity in the Program. Section 1 provides a Program Overview, presenting highlights of the technical accomplishments of the elements of the Program, a summary of activities carried out under the Glass Laser Experiments Lead Laboratory Program, as well as discussions of Program resources and facilities. Section 2 covers the work on solid-state Nd:glass lasers, including systems operations and Nova and Novette systems development. Section 3 reports on target-design activities, plasma theory and simulation, code development, and atomic theory. Section 4 presents the accomplishments of the Target Fabrication group, Section 5 contains the results of our diagnostics development, and Section 6 reports the results of laser-target experiments conducted during the year, along with supporting research and development activities. Section 7 presents the results from laser research and development, including solid-state R and D and the theoretical and experimental research on advanced lasers. Section 8 contains the results of studies in areas of energy and military applications, including those relating to electrical energy production by inertial-confinement fusion systems.

  11. Legacy of the X-Ray Laser Program

    SciTech Connect (OSTI)

    Nilsen, J.

    1993-08-06

    The X-Ray Laser Program has evolved from a design effort focusing on developing a Strategic Defense Initiative weapon that protects against Soviet ICBMs to a scientific project that is producing new technologies for industrial and medical research. While the great technical successes and failures of the X-ray laser itself cannot be discussed, this article presents the many significant achievements made as part of the X-ray laser effort that are now being used for other applications at LLNL.

  12. LED Parking Lot Lighting Working Group Fact Sheet

    SciTech Connect (OSTI)

    2008-10-01

    This fact sheet describes the Retailer Energy Alliance LED Parking Lot Lighting Working Group and its Technology Procurement Project.

  13. Automata groups 

    E-Print Network [OSTI]

    Muntyan, Yevgen

    2010-01-16

    automata over the alphabet of 2 letters and 2-state automata over the 3-letter alphabet. We continue the classification work started by the research group at Texas A&M University ([BGK+07a, BGK+07b]) and further reduce the number of pairwise nonisomorphic...

  14. CORRECTION OF BUTT-WELDING INDUCED DISTORTIONS BY LASER FORMING

    E-Print Network [OSTI]

    Yao, Y. Lawrence

    CORRECTION OF BUTT-WELDING INDUCED DISTORTIONS BY LASER FORMING Peng Cheng, Andrew J. Birnbaum, Y Egland Technology and Solutions Division Caterpillar Inc. Peoria, IL KEYWORDS Welding, Distortion, Correction, Laser Forming ABSTRACT Welding-induced distortion is an intrinsic phenomenon arising due

  15. Pathways to Laser Fusion Beyond NIF Fusion Power Associates Meeting

    E-Print Network [OSTI]

    Pathways to Laser Fusion Beyond NIF Fusion Power Associates Meeting Washington DC 10 December 2013 and hydrodynamic efficiency · Reduces risk from hydro and all laser plasma instabilities Multi-stage focal zooming · Demonstrate integrated physics / technologies for a power plant. · Tritium breeding, fusion power handling

  16. Commercialization plan laser-based decoating systems

    SciTech Connect (OSTI)

    Freiwald, J.; Freiwald, D.A.

    1998-01-01

    F2 Associates Inc. (F2) is a small, high-technology firm focused on developing and commercializing environmentally friendly laser ablation systems for industrial-rate removal of surface coatings from metals, concrete, and delicate substrates such as composites. F2 has a contract with the US Department of Energy Federal Energy Technology Center (FETC) to develop and test a laser-based technology for removing contaminated paint and other contaminants from concrete and metal surfaces. Task 4.1 in Phase 2 of the Statement of Work for this DOE contract requires that F2 ``document its plans for commercializing and marketing the stationary laser ablation system. This document shall include a discussion of prospects for commercial customers and partners and may require periodic update to reflect changing strategy. This document shall be submitted to the DOE for review.`` This report is being prepared and submitted in fulfillment of that requirement. This report describes the laser-based technology for cleaning and coatings removal, the types of laser-based systems that have been developed by F2 based on this technology, and the various markets that are emerging for this technology. F2`s commercialization and marketing plans are described, including how F2`s organization is structured to meet the needs of technology commercialization, F2`s strategy and marketing approach, and the necessary steps to receive certification for removing paint from aircraft and DOE certification for D and D applications. The future use of the equipment built for the DOE contract is also discussed.

  17. LASER DIODE TECHNOLOGY AND APPLICATIONS Submitted to

    E-Print Network [OSTI]

    La Rosa, Andres H.

    and a normal diode and a light emitting diode. I will also define the terms homojunction and heterojunction, and is the main source of light in a light-emitting diode. Under suitable conditions, the electron and the hole

  18. Scientists Help Bring Advanced Laser Technologies Mainstream...

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

    difficult-to-work with materials like titanium into parts as large as 1 meter tall. This additive manufacturing technique is being developed to form the leading edge of our jet...

  19. Laser program annual report, 1979

    SciTech Connect (OSTI)

    Coleman, L.W.; Strack, J.R.

    1980-03-01

    Volume 3 comprises three sections, beginning with Section 7 on advanced quantum electronics. Both theoretical and experimental research and development activities on advanced laser concepts in the quest for high efficiency and high repetition rate are presented. Section 8 contains the results of studies by the Energy and Military Applications group. Section 9 presents results from some of the activities of the advanced isotope separation program. (MOW)

  20. Laser Pointer Safety INTRODUCTION

    E-Print Network [OSTI]

    Laser Pointer Safety INTRODUCTION The use of laser diode pointers that operate in the visible to the retractable, metal pointer, the laser pointer beam will produce a small dot of light on whatever object at which it is aimed. It can draw an audience¹s attention to a particular key point in a slide show. Laser

  1. Narrow gap laser welding

    DOE Patents [OSTI]

    Milewski, J.O.; Sklar, E.

    1998-06-02

    A laser welding process including: (a) using optical ray tracing to make a model of a laser beam and the geometry of a joint to be welded; (b) adjusting variables in the model to choose variables for use in making a laser weld; and (c) laser welding the joint to be welded using the chosen variables. 34 figs.

  2. Narrow gap laser welding

    DOE Patents [OSTI]

    Milewski, John O. (Santa Fe, NM); Sklar, Edward (Santa Fe, NM)

    1998-01-01

    A laser welding process including: (a) using optical ray tracing to make a model of a laser beam and the geometry of a joint to be welded; (b) adjusting variables in the model to choose variables for use in making a laser weld; and (c) laser welding the joint to be welded using the chosen variables.

  3. Longitudinal discharge laser baffles

    DOE Patents [OSTI]

    Warner, B.E.; Ault, E.R.

    1994-06-07

    The IR baffles placed between the window and the electrode of a longitudinal discharge laser improve laser performance by intercepting off-axis IR radiation from the laser and in doing so reduce window heating and subsequent optical distortion of the laser beam. 1 fig.

  4. Laser Spectroscopic Trace-Gas Sensor Networks for Atmospheric Monitoring Applications

    E-Print Network [OSTI]

    Zhong, Lin

    Laser Spectroscopic Trace-Gas Sensor Networks for Atmospheric Monitoring Applications Stephen So@princeton.edu ABSTRACT Laser-based atmospheric trace-gas sensors have great potential for long-term, real a laser based chemical sensing technology with wide-area autonomous wireless sensor networking

  5. Nonlinear laser energy depletion in laser-plasma accelerators

    E-Print Network [OSTI]

    Shadwick, B.A.

    2009-01-01

    Nonlinear laser energydepletion in laser-plasma accelerators ? B. A. Shadwick,of intense, short-pulse lasers via excitation of plasma

  6. Laser accelerometer

    SciTech Connect (OSTI)

    Vescial, F.; Aronowitz, F.; Niguel, L.

    1990-04-24

    This patent describes a laser accelerometer. It comprises: an optical cavity characterizing a frame having an input axis (x), a cross axis (y) orthogonal to and co-planar with the input axis and a (z) axis passing through the intersection of the (x) and (y) axes, the (z) axis being orthogonal to the plane of the (x) and (y) axes; and (x) axis proof mass having a predetermined blanking surface; a flexible beam having a first end coupled to the (x) axis proof mass and a second end coupled to the frame, deflection of the flexible beams permitting a predetermined range of movement of the (x) proof mass on the input axis in a direction opposite to sensed acceleration of the frame; a laser light source having a mirror means within the cavity for providing a light ray coaxially aligned with the (z) axis; detector means having at least a first detector on a sensitive plane, the plane being normal to the (z) axis; bias and amplifier means coupled to the detector means for providing a bias current to the first detector and for amplifying the intensity signal; the (x) axis proof mass blanking surface being centrally positioned within and normal to the light ray null intensity region to provide increased blanking of the light ray in response to transverse movement of the mass on the input axis; control means responsive to the intensity signal for applying an (x) axis restoring force to restore the (x) axis proof mass to the central position and for providing an (x) axis output signal proportional to the restoring force.

  7. Nanoscience for Energy Technology and Sustainability

    E-Print Network [OSTI]

    Giger, Christine

    Nanoscience for Energy Technology and Sustainability Research Profile Prof. Park's Professorship issues of future energy & environmen- tal sustainability. Five strategic foci of Prof. Park's group of Energy Technology focuses on fundamental nanoscience for energy and clean technology applications

  8. Three-Dimensional Laser Cooling

    E-Print Network [OSTI]

    Okamato, H.

    2008-01-01

    Three-Dimensional Laser Cooling H. Okamoto, A.M. Sessler,effective transverse laser cooling simultaneously withlongitudinal laser cooling, two possibilities are

  9. Lasers, stem cells, and COPD

    E-Print Network [OSTI]

    2010-01-01

    H: Cytokine production after helium-neon laser irradiationpower helium: neon laser irradiation enhances production ofHelium-neon laser irradiation induces effects on cytokine production

  10. Learn More about Fusion & Lasers

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

    Learn More about Fusion & Lasers How Lasers Work Learn how lasers were developed and how they work. Outreach NIF & Photon Science researchers take learning opportunities on the...

  11. LLE (Laboratory for Laser Energetics) review

    SciTech Connect (OSTI)

    Kumpan, S.A. (ed.)

    1990-01-01

    This volume of the LLE Review, covering the period April--June 1990, contains articles in two main sections, Progress in Laser Fusion and Advanced Technology Developments. The first article presents the theoretical interpretation of the glass-ablator cryogenic-implosion experiments recently conducted on OMEGA. It is followed by an article describing the analysis of neutron time-of-flight data taken during DT and DD experiments; and a discussion of the improvements to laser diagnostics that now provide for precise control of the OMEGA laser is given. This paper contains a report on the development of transparent conductive coatings for KDP crystals, and a discussion of the study of the transient-surface Debye-Waller effect in materials irradiated with an ultrafast laser.

  12. Energy and technology review

    SciTech Connect (OSTI)

    Not Available

    1982-08-01

    Three areas of research are discussed: microcomputer technology applied to inspecting machined parts to determine roundness in ultraprecision measurements; development of an electrolytic technique for preparing dinitrogen pentoxide as a potentially less expensive step in the large-scale synthesis of the explosive HMX; and the application of frequency conversion to short wavelengths in the Novette and Nova lasers to improve the performance of inertial-confinement fusion targets. (GHT)

  13. Pulsed Power for Solid-State Lasers

    SciTech Connect (OSTI)

    Gagnon, W; Albrecht, G; Trenholme, J; Newton, M

    2007-04-19

    Beginning in the early 1970s, a number of research and development efforts were undertaken at U.S. National Laboratories with a goal of developing high power lasers whose characteristics were suitable for investigating the feasibility of laser-driven fusion. A number of different laser systems were developed and tested at ever larger scale in pursuit of the optimum driver for laser fusion experiments. Each of these systems had associated with it a unique pulsed power option. A considerable amount of original and innovative engineering was carried out in support of these options. Ultimately, the Solid-state Laser approach was selected as the optimum driver for the application. Following this, the Laser Program at the Lawrence Livermore National Laboratory and the University of Rochester undertook aggressive efforts directed at developing the technology. In particular, at Lawrence Livermore National Laboratory, a series of laser systems beginning with the Cyclops laser and culminating in the present with the National Ignition Facility were developed and tested. As a result, a large amount of design information for solid-state laser pulsed power systems has been documented. Some of it is in the form of published papers, but most of it is buried in internal memoranda, engineering reports and LLNL annual reports. One of the goals of this book is to gather this information into a single useable format, such that it is easily accessed and understood by other engineers and physicists for use with future designs. It can also serve as a primer, which when seriously studied, makes the subsequent reading of original work and follow-up references considerably easier. While this book deals only with the solid-state laser pulsed power systems, in the bibliography we have included a representative cross section of papers and references from much of the very fine work carried out at other institutions in support of different laser approaches. Finally, in recent years, there has been a renewed interest in high-average-power solid-state glass lasers. Much of the prime power technology developed in support of this has definite applications in the long term for fusion power plant scenarios.

  14. Laser decontamination: A new strategy for facility decommissioning

    SciTech Connect (OSTI)

    Pang, H.M.; Lipert, R.J.; Hamrick, Y.M.; Bayrakal, S.; Gaul, K.; Davis, B.; Baldwin, D.P.; Edelson, M.C.

    1992-01-01

    Lasers can be employed to remove both surface and bulk contamination from metals. Experiments demonstrate that {approximately}5{mu}m can be removed from an Al surface by one powerful laser pulse. Focusing with cylindrical lenses is shown to result in good surface coverage and reduced surface redeposition. High-resolution laser spectroscopy in a small atomic beam device is demonstrated and discussions of bulk decontamination by AVLIS-like methods are described. A plan for estimating the cost-effectiveness of laser decontamination technology is discussed.

  15. Laser decontamination: A new strategy for facility decommissioning

    SciTech Connect (OSTI)

    Pang, H.M.; Lipert, R.J.; Hamrick, Y.M.; Bayrakal, S.; Gaul, K.; Davis, B.; Baldwin, D.P.; Edelson, M.C.

    1992-06-01

    Lasers can be employed to remove both surface and bulk contamination from metals. Experiments demonstrate that {approximately}5{mu}m can be removed from an Al surface by one powerful laser pulse. Focusing with cylindrical lenses is shown to result in good surface coverage and reduced surface redeposition. High-resolution laser spectroscopy in a small atomic beam device is demonstrated and discussions of bulk decontamination by AVLIS-like methods are described. A plan for estimating the cost-effectiveness of laser decontamination technology is discussed.

  16. Energy and Technology Review

    SciTech Connect (OSTI)

    Bookless, W.A.; Quirk, W.J.

    1994-06-01

    This report discusses: The Clementine satellite, the first US satellite to the Moon in more than two decades, sent back more than 1.5 million images of the lunar surface using cameras designed and calibrated by LLNL. An LLNL-developed laser ranger provided information that will be used to construct a relief map of the Moon`s surface; and Uncertainty and the Federal Role in Science and Technology, Ralph E. Gomory was a recent participate in the Director`s Distinguished Lecturer Series at LLNL. In his lecture, he addressed some of the tensions, conflicts, and possible goals related to federal support for science and technology.

  17. Krypton Fluoride Laser Driven Inertial Fusion Energy

    E-Print Network [OSTI]

    for Inertial Confinement Fusion Energy Systems San Ramon CA January 29, 2011 presented by John Sethian1 Krypton Fluoride Laser Driven Inertial Fusion Energy Presented to NAS Committee on the Prospects POWER PLANT: Attractive Technology #12;6 Outline S. ObenschainVision of R&D path to Inertial Fusion

  18. Accelerator Technology Division progress report, FY 1992

    SciTech Connect (OSTI)

    Schriber, S.O.; Hardekopf, R.A.; Heighway, E.A.

    1993-07-01

    This report briefly discusses the following topics: The Ground Test Accelerator Program; Defense Free-Electron Lasers; AXY Programs; A Next Generation High-Power Neutron-Scattering Facility; JAERI OMEGA Project and Intense Neutron Sources for Materials Testing; Advanced Free-Electron Laser Initiative; Superconducting Supercollider; The High-Power Microwave (HPM) Program; Neutral Particle Beam (NPB) Power Systems Highlights; Industrial Partnering; Accelerator Physics and Special Projects; Magnetic Optics and Beam Diagnostics; Accelerator Design and Engineering; Radio-Frequency Technology; Accelerator Theory and Free-Electron Laser Technology; Accelerator Controls and Automation; Very High-Power Microwave Sources and Effects; and GTA Installation, Commissioning, and Operations.

  19. Proceedings of the second FY87 meeting of the National Working Group for Reduction in Transuranic Waste Arisings

    SciTech Connect (OSTI)

    Not Available

    1987-09-01

    The Second FY87 Meeting of the National Working Group for Reduction in Transuranic Waste Arisings (NWGRTWA) was held at the Lawrence Livermore National Laboratory, Tuesday and Wednesday, July 28--29, 1987. The purpose of the meeting was to discuss (1) modeling programs for waste reduction, (2) proposed FY88 and out-year tasks including the SRL Pu incineration, immobilization improvement, erbia coating technology, and (3) improvements in up-stream recovery operations to effect waste reduction. In addition, tours were made of the LLNL Waste Operations, the Laser Fusion (NOVA), and the Magnetic Fusion (MFTF).

  20. Laser Facilities

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.Theory ofDid you notHeat PumpsTechnologies | Blandine Jerome LanfangCenter for

  1. PHARAO Laser Source Flight Model: Design and Performances

    E-Print Network [OSTI]

    Lévèque, Thomas; Esnault, François-Xavier; Delaroche, Christophe; Massonnet, Didier; Grosjean, Olivier; Buffe, Fabrice; Torresi, Patrizia; Bomer, Thierry; Pichon, Alexandre; Béraud, Pascal; Lelay, Jean-Pierre; Thomin, Stéphane; Laurent, Philippe

    2015-01-01

    In this paper, we describe the design and the main performances of the PHARAO laser source flight model. PHARAO is a laser cooled cesium clock specially designed for operation in space and the laser source is one of the main sub-systems. The flight model presented in this work is the first remote-controlled laser system designed for spaceborne cold atom manipulation. The main challenges arise from mechanical compatibility with space constraints, which impose a high level of compactness, a low electric power consumption, a wide range of operating temperature and a vacuum environment. We describe the main functions of the laser source and give an overview of the main technologies developed for this instrument. We present some results of the qualification process. The characteristics of the laser source flight model, and their impact on the clock performances, have been verified in operational conditions.

  2. Faience Technology

    E-Print Network [OSTI]

    Nicholson, Paul

    2009-01-01

    by Joanne Hodges. Faience Technology, Nicholson, UEE 2009Egyptian materials and technology, ed. Paul T. Nicholson,Nicholson, 2009, Faience Technology. UEE. Full Citation:

  3. Technology Alert List From the U.S. Department of State

    E-Print Network [OSTI]

    Guenther, Frank

    · Inertial Confinement Fusion (ICF) · Magnetic confinement fusion · Laser fusion, high power lasers, plasma a ballistic missile. #12;D. ROCKET SYSTEM AND UNMANNED AIR VEHICLE (UAV) SUBSYSTEMS: Propulsion technologies of these technologies are dual-use. Technologies include: · Liquid and solid rocket propulsion systems · Missile

  4. HEMISPHERIC CENTER FOR ENVIRONMENTAL TECHNOLOGY

    SciTech Connect (OSTI)

    M.A. Ebadian

    1999-07-31

    FIU-HCET personnel visited the Special Technologies Laboratory (STL) for discussions with the Principal Investigator (PI) of Laser Induced Fluorescence Imaging (LIFI) and for training in LIFI. Mr. Peter Gibbons, Tanks Retrieval Technology Integration Manager, visited FIU-HCET on July 20, 1999. Mr. Gibbons inspected the pipeline unplugging experimental facility at the HCET testing field. The detailed test bed construction, testing plan, and plugging material specifications were discussed.

  5. Hanergy Holdings Group Company Ltd formerly Farsighted Group aka Huarui

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LISTStar2-0057-EA JumpDuimen River Power Co LtdGuntherGreens LaserGroup | Open Energy

  6. Direct nuclear pumped laser

    DOE Patents [OSTI]

    Miley, George H. (Champagne, IL); Wells, William E. (Urbana, IL); DeYoung, Russell J. (Hampton, VA)

    1978-01-01

    There is provided a direct nuclear pumped gas laser in which the lasing mechanism is collisional radiated recombination of ions. The gas laser active medium is a mixture of the gases, with one example being neon and nitrogen.

  7. Laser preheat enhanced ignition

    DOE Patents [OSTI]

    Early, James W. (Los Alamos, NM)

    1999-01-01

    A method for enhancing fuel ignition performance by preheating the fuel with laser light at a wavelength that is absorbable by the fuel prior to ignition with a second laser is provided.

  8. Laser particle sorter

    DOE Patents [OSTI]

    Martin, J.C.; Buican, T.N.

    1987-11-30

    Method and apparatus are provided for sorting particles, such as biological particles. A first laser is used to define an optical path having an intensity gradient which is effective to propel the particles along the path but which is sufficiently weak that the particles are not trapped in an axial direction. A probe laser beam is provided for interrogating the particles to identify predetermined phenotypical characteristics of the particles. A second laser beam is provided to intersect the driving first laser beam, wherein the second laser beam is activated by an output signal indicative of a predetermined characteristic. The second laser beam is switchable between a first intensity and a second intensity, where the first intensity is effective to displace selected particles from the driving laser beam and the second intensity is effective to propel selected particles along the deflection laser beam. The selected particles may then be propelled by the deflection beam to a location effective for further analysis. 2 figs.

  9. Laser preheat enhanced ignition

    DOE Patents [OSTI]

    Early, J.W.

    1999-03-02

    A method for enhancing fuel ignition performance by preheating the fuel with laser light at a wavelength that is absorbable by the fuel prior to ignition with a second laser is provided. 11 figs.

  10. Laser induced chemical reactions

    E-Print Network [OSTI]

    Orel, Ann E.

    2010-01-01

    the simplest prototype chemical reaction, and since it is soLASER ENHANCEMENT OF CHEMICAL REACTIONS A. B. C. D. E.Laser Inhibition of Chemical Reaction Effect of Isotopic

  11. TIMELY DELIVERY OF LASER INERTIAL FUSION ENERGY (LIFE)

    SciTech Connect (OSTI)

    Dunne, A M

    2010-11-30

    The National Ignition Facility (NIF), the world's largest and most energetic laser system, is now operational at Lawrence Livermore National Laboratory. A key goal of the NIF is to demonstrate fusion ignition for the first time in the laboratory. Its flexibility allows multiple target designs (both indirect and direct drive) to be fielded, offering substantial scope for optimization of a robust target design. In this paper we discuss an approach to generating gigawatt levels of electrical power from a laser-driven source of fusion neutrons based on these demonstration experiments. This 'LIFE' concept enables rapid time-to-market for a commercial power plant, assuming success with ignition and a technology demonstration program that links directly to a facility design and construction project. The LIFE design makes use of recent advances in diode-pumped, solid-state laser technology. It adopts the paradigm of Line Replaceable Units utilized on the NIF to provide high levels of availability and maintainability and mitigate the need for advanced materials development. A demonstration LIFE plant based on these design principles is described, along with the areas of technology development required prior to plant construction. A goal-oriented, evidence-based approach has been proposed to allow LIFE power plant rollout on a time scale that meets policy imperatives and is consistent with utility planning horizons. The system-level delivery builds from our prior national investment over many decades and makes full use of the distributed capability in laser technology, the ubiquity of semiconductor diodes, high volume manufacturing markets, and U.S. capability in fusion science and nuclear engineering. The LIFE approach is based on the ignition evidence emerging from NIF and adopts a line-replaceable unit approach to ensure high plant availability and to allow evolution from available technologies and materials. Utilization of a proven physics platform for the ignition scheme is an essential component of an acceptably low-risk solution. The degree of coupling seen on NIF between driver and target performance mandates that little deviation be adopted from the NIF geometry and beamline characteristics. Similarly, the strong coupling between subsystems in an operational power plant mandates that a self-consistent solution be established via an integrated facility delivery project. The benefits of separability of the subsystems within an IFE plant (driver, chamber, targets, etc.) emerge in the operational phase of a power plant rather than in its developmental phase. An optimized roadmap for IFE delivery needs to account for this to avoid nugatory effort and inconsistent solutions. For LIFE, a system design has been established that could lead to an operating power plant by the mid-2020s, drawing from an integrated subsystem development program to demonstrate the required technology readiness on a time scale compatible with the construction plan. Much technical development work still remains, as does alignment of key stakeholder groups to this newly emerging development option. If the required timeline is to be met, then preparation of a viable program is required alongside the demonstration of ignition on NIF. This will enable timely analysis of the technical and economic case and establishment of the appropriate delivery partnership.

  12. TAMPERE UNIVERSITY OF TECHNOLOGY Department of Information Technology

    E-Print Network [OSTI]

    Virtanen, Tuomas

    TAMPERE UNIVERSITY OF TECHNOLOGY Department of Information Technology TUOMAS VIRTANEN AUDIO SIGNAL University of Technology, Finland. The working in the Audio Research Group of TUT has been very enjoyable Anssi Klapuri #12;Preface This work has been carried out in the Signal Processing Laboratory of Tampere

  13. Laser-ultrasonic inspection of hybrid laser-arc welded HSLA-65 steel

    SciTech Connect (OSTI)

    Lévesque, D.; Rousseau, G.; Monchalin, J.-P. [National Research Council Canada, Boucherville, QC (Canada); Wanjara, P.; Cao, X. [National Research Council Canada, Montreal, QC (Canada)

    2014-02-18

    The hybrid laser-arc welding (HLAW) process is a relatively low heat input joining technology that combines the synergistic qualities of both the high energy density laser beam for deep penetration and the arc for wide fit-up gap tolerance. This process is especially suitable for the shipbuilding industry where thick-gauge section, long steel plates have been widely used in a butt joint configuration. In this study, preliminary exploration was carried out to detect and visualize the welding defects using laser ultrasonics combined with the synthetic aperture focusing technique (SAFT). Results obtained on 9.3 mm thick butt-welded HSLA-65 steel plates indicated that the laser-ultrasonic SAFT inspection technique can successfully detect and visualize the presence of porosity, lack of fusion and internal crack defects. This was further confirmed by X-ray digital radiography and metallography. The results obtained clearly show the potential of using the laser-ultrasonic technology for the automated inspection of hybrid laser-arc welds.

  14. Transmyocardial Laser Revascularization

    E-Print Network [OSTI]

    Hansma, Paul

    Transmyocardial Laser Revascularization Max Wiedmann #12;What is TMR? · TMR is used to improve blood flow to heart muscle tissue (myocardial tissue). · This is done using a laser to create small with bypass surgery so no additional opening is required. · The surgeon uses the laser to create 20 to 40 1mm

  15. Laser bottom hole assembly

    DOE Patents [OSTI]

    Underwood, Lance D; Norton, Ryan J; McKay, Ryan P; Mesnard, David R; Fraze, Jason D; Zediker, Mark S; Faircloth, Brian O

    2014-01-14

    There is provided for laser bottom hole assembly for providing a high power laser beam having greater than 5 kW of power for a laser mechanical drilling process to advance a borehole. This assembly utilizes a reverse Moineau motor type power section and provides a self-regulating system that addresses fluid flows relating to motive force, cooling and removal of cuttings.

  16. Policy Groups Winfried E. Kuhnhauser

    E-Print Network [OSTI]

    Kühnhauser, Winfried

    1 Policy Groups Winfried E. Kuhnhauser GMD National Research Center For Information Technology D: Systems that support a multitude of independent security domains in which an individual security policy domains consti- tutes a major problem. While security policies are capable of controlling the applications

  17. Georgia Southern University Information Technology

    E-Print Network [OSTI]

    Hutcheon, James M.

    Georgia Southern University Information Technology Organization Chart 2014-2015 FINAL: August 29, 2014 R:\\Common\\OrgCharts\\Rev 2015 Information Technology \\CIO Produced: Strategic Research & Analysis of the groups of units reporting there. President Vice President for Information Technology and Chief

  18. IMTC 2005 Instrumentation and Measurement Technology Conference

    E-Print Network [OSTI]

    Payeur, Pierre

    IMTC 2005 ­ Instrumentation and Measurement Technology Conference Ottawa, Canada, 17-19 May 2005 the currently available sensor technologies. The primary problem comes from the fact that laser range sensors the availability of system integration is non-existent, which reduces or inconveniences the possibility

  19. Energy conservation potential of surface modification technologies

    SciTech Connect (OSTI)

    Le, H.K.; Horne, D.M.; Silberglitt, R.S.

    1985-09-01

    This report assesses the energy conservation impact of surface modification technologies on the metalworking industries. The energy conservation impact of surface modification technologies on the metalworking industries is assessed by estimating their friction and wear tribological sinks and the subsequent reduction in these sinks when surface modified tools are used. Ion implantation, coatings, and laser and electron beam surface modifications are considered.

  20. High repetition rate, high average power, femtosecond erbium fiber ring laser

    E-Print Network [OSTI]

    Ippen, Erich P.

    A 301 MHz fundamentally mode-locked erbium fiber ring laser generating 108 fs pulses is demonstrated. Novel combination of gain fiber with anomalous group-velocity dispersion and intra-cavity silicon with normal group-velocity ...

  1. Institute for Critical Technology and Applied Sciencewww.ictas.vt.edu

    E-Print Network [OSTI]

    Crawford, T. Daniel

    to advance technologies from laser drilling to power electronics, from natural gas storage to transgenic electrification, and natural gas storage. http://arpa-e.energy.gov/ #12;

  2. X-ray laser

    DOE Patents [OSTI]

    Nilsen, Joseph (Livermore, CA)

    1991-01-01

    An X-ray laser (10) that lases between the K edges of carbon and oxygen, i.e. between 44 and 23 Angstroms, is provided. The laser comprises a silicon (12) and dysprosium (14) foil combination (16) that is driven by two beams (18, 20) of intense line focused (22, 24) optical laser radiation. Ground state nickel-like dysprosium ions (34) are resonantly photo-pumped to their upper X-ray laser state by line emission from hydrogen-like silicon ions (32). The novel X-ray laser should prove especially useful for the microscopy of biological specimens.

  3. Electron Technology, 2, 213, pp. 139-147. Institute of Electron Technology P.A. Sci., Warsaw 1969 STATISTICAL NATURE OF THE INFRARED

    E-Print Network [OSTI]

    Teich, Malvin C.

    Electron Technology, 2, 213, pp. 139-147. Institute of Electron Technology P.A. Sci., Warsaw 1969 and the statistical nature of the coherently detected signal at the 10.6 pm C02laser wavelength. Coherent detection

  4. Laser program annual report, 1980

    SciTech Connect (OSTI)

    Coleman, L.W.; Krupke, W.F.; Strack, J.R. (eds.) [eds.

    1981-06-01

    Volume 2 contains five sections that cover the areas of target design, target fabrication, diagnostics, and fusion experiments. Section 3 reports on target design activities, plasma theory and simulation, code development, and atomic theory. Section 4 presents the accomplishments of the Target Fabrication Group, Section 5 contains the results of our diagnostics development, and Section 6 describes advances made in the management and analysis of experimental data. Finally, Section 7 in Volume 2 reports the results of laser target experiments conducted during the year.

  5. Energy and technology review

    SciTech Connect (OSTI)

    Poggio, A.J. (ed.)

    1988-10-01

    This issue of Energy and Technology Review contains: Neutron Penumbral Imaging of Laser-Fusion Targets--using our new penumbral-imaging diagnostic, we have obtained the first images that can be used to measure directly the deuterium-tritium burn region in laser-driven fusion targets; Computed Tomography for Nondestructive Evaluation--various computed tomography systems and computational techniques are used in nondestructive evaluation; Three-Dimensional Image Analysis for Studying Nuclear Chromatin Structure--we have developed an optic-electronic system for acquiring cross-sectional views of cell nuclei, and computer codes to analyze these images and reconstruct the three-dimensional structures they represent; Imaging in the Nuclear Test Program--advanced techniques produce images of unprecedented detail and resolution from Nevada Test Site data; and Computational X-Ray Holography--visible-light experiments and numerically simulated holograms test our ideas about an x-ray microscope for biological research.

  6. Laser system using ultra-short laser pulses

    DOE Patents [OSTI]

    Dantus, Marcos (Okemos, MI); Lozovoy, Vadim V. (Okemos, MI); Comstock, Matthew (Milford, MI)

    2009-10-27

    A laser system using ultrashort laser pulses is provided. In another aspect of the present invention, the system includes a laser, pulse shaper and detection device. A further aspect of the present invention employs a femtosecond laser and binary pulse shaping (BPS). Still another aspect of the present invention uses a laser beam pulse, a pulse shaper and a SHG crystal.

  7. PREVIOUS NIU LLI STUDY GROUPS Winter 2015

    E-Print Network [OSTI]

    Kostic, Milivoje M.

    PREVIOUS NIU LLI STUDY GROUPS Winter 2015 Scandals of All Sorts ­ Carol Zar The Changing Media or Photograph? ­ Tom Smith #12;Science, Technology, Engineering, and Mathematics (STEM) at NIU ­ Omar Ghrayeb

  8. The interaction of intense subpicosecond laser pulses with underdense plasmas

    SciTech Connect (OSTI)

    Coverdale, C.A.

    1995-05-11

    Laser-plasma interactions have been of interest for many years not only from a basic physics standpoint, but also for their relevance to numerous applications. Advances in laser technology in recent years have resulted in compact laser systems capable of generating (psec), 10{sup 16} W/cm{sup 2} laser pulses. These lasers have provided a new regime in which to study laser-plasma interactions, a regime characterized by L{sub plasma} {ge} 2L{sub Rayleigh} > c{tau}. The goal of this dissertation is to experimentally characterize the interaction of a short pulse, high intensity laser with an underdense plasma (n{sub o} {le} 0.05n{sub cr}). Specifically, the parametric instability known as stimulated Raman scatter (SRS) is investigated to determine its behavior when driven by a short, intense laser pulse. Both the forward Raman scatter instability and backscattered Raman instability are studied. The coupled partial differential equations which describe the growth of SRS are reviewed and solved for typical experimental laser and plasma parameters. This solution shows the growth of the waves (electron plasma and scattered light) generated via stimulated Raman scatter. The dispersion relation is also derived and solved for experimentally accessible parameters. The solution of the dispersion relation is used to predict where (in k-space) and at what frequency (in {omega}-space) the instability will grow. Both the nonrelativistic and relativistic regimes of the instability are considered.

  9. Advanced ignition and propulsion technology program

    SciTech Connect (OSTI)

    Oldenborg, R.; Early, J.; Lester, C.

    1998-11-01

    This is the final report of a three-year, Laboratory Directed Research and Development (LDRD) project at the Los Alamos National Laboratory (LANL). Reliable engine re-ignition plays a crucial role in enabling commercial and military aircraft to fly safely at high altitudes. This project addressed research elements critical to the optimization of laser-based igniter. The effort initially involved a collaborative research and development agreement with B.F. Goodrich Aerospace and Laser Fare, Inc. The work involved integrated experiments with theoretical modeling to provide a basic understanding of the chemistry and physics controlling the laser-induced ignition of fuel aerosols produced by turbojet engine injectors. In addition, the authors defined advanced laser igniter configurations that minimize laser packaging size, weight, complexity and power consumption. These innovative ignition concepts were shown to reliably ignite jet fuel aerosols over a broad range of fuel/air mixture and a t fuel temperatures as low as -40 deg F. The demonstrated fuel ignition performance was highly superior to that obtained by the state-of-the-art, laser-spark ignition method utilizing comparable laser energy. The authors also developed a laser-based method that effectively removes optically opaque deposits of fuel hydrocarbon combustion residues from laser window surfaces. Seven patents have been either issued or are pending that resulted from the technology developments within this project.

  10. ATF CO{sub 2} laser system upgrade to terawatt peak power

    SciTech Connect (OSTI)

    Pogorelsky, I.V.

    1995-05-01

    This document describes the proposed upgrade of the 10-GW peak power 50-ps CO{sub 2} laser presently operational at the ATF to the 1 TW level at a shorter, 3--10 ps, pulse duration. The approach adopted is based on state of the art CO{sub 2} laser technology and an experience gained in the course of the ATF laser design and application for the laser accelerator experiment. The proposed upgrade is an economical way for the ATF to become in a short time among leading users facilities available for next generation ({ge} 100 MeV) laser accelerator studies.

  11. Science and Technology Review, September 1996

    SciTech Connect (OSTI)

    Failor, B.; Upadhye, R.; Wheatcraft, D.

    1996-09-01

    This review is published ten times a year to communicate, to a broad audience, Lawrence Livermore National Laboratory`s scientific and technological accomplishments in fulfilling its primary missions. The feature articles are `Taking Lasers beyond the National Ignition Facility` and `Jumpin` Jupiter! Metallic Hydrogen`. The first article describes the ultimate goal of laser fusion as the production of electricity by inertial confinement fusion. Advances in diode-laser technology promise to take another step closer to that goal. The latter article discusses a Laboratory team`s efforts to provide evidence for the metallization of hydrogen based on the team`s expertise in shock compression. A commentary on `The Next Frontiers of Advanced Lasers Research is provided, and a research highlight is given on `Modeling Human Joints and Prosthetic Implants.

  12. Laser-PlasmaWakefield Acceleration with Higher Order Laser Modes

    E-Print Network [OSTI]

    Geddes, C.G.R.

    2011-01-01

    Design considerations for a laser-plasma linear collider,"E.Esarey, and W.P.Leemans, "Free-electron laser driven bythe LBNL laser-plasma accelerator," in Proc. Adv. Acc. Con.

  13. Experimental study of laser-oxygen cutting of low-carbon steel using fibre and CO{sub 2} lasers under conditions of minimal roughness

    SciTech Connect (OSTI)

    Golyshev, A A; Malikov, A G; Orishich, A M; Shulyatyev, V B [S.A. Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch, Russian Academy of Sciences, Novosibirsk (Russian Federation)

    2014-10-31

    The results of an experimental study of laser-oxygen cutting of low-carbon steel using fibre and CO{sub 2} lasers are generalised. The dependence of roughness of the cut surface on the cutting parameters is investigated, and the conditions under which the surface roughness is minimal are formulated. It is shown that for both types of lasers these conditions can be expressed in the same way in terms of the dimensionless variables – the Péclet number Pe and the output power Q of laser radiation per unit thickness of the cut sheet – and take the form of the similarity laws: Pe = const, Q = const. The optimal values of Pe and Q are found. We have derived empirical expressions that relate the laser power and cutting speed with the thickness of the cut sheet under the condition of minimal roughness in the case of cutting by means of radiation from fibre and CO{sub 2} lasers. (laser technologies)

  14. Broadband laser polarization control with aligned carbon nanotubes

    E-Print Network [OSTI]

    Yang, He; Lia, Diao; Chen, Ya; Mattila, Marco; Tian, Ying; Yong, Zhenzhong; Yang, Changxi; Tittonen, Ilkka; Ren, Zhaoyu; Bai, Jingtao; Li, Qingwen; Kauppinen, Esko I; Lipsanen, Harri; Sun, Zhipei

    2015-01-01

    We introduce a simple approach to fabricate aligned carbon nanotube (ACNT) device for broadband polarization control in fiber laser systems. The ACNT device was fabricated by pulling from as-fabricated vertically-aligned carbon nanotube arrays. Their anisotropic property is confirmed with optical and scanning electron microscopy, and with polarized Raman and absorption spectroscopy. The device was then integrated into fiber laser systems (at two technologically important wavelengths of 1 and 1.5 um) for polarization control. We obtained a linearly-polarized light output with the maximum extinction ratio of ~12 dB. The output polarization direction could be fully controlled by the ACNT alignment direction in both lasers. To the best of our knowledge, this is the first time that ACNT device is applied to polarization control in laser systems. Our results exhibit that the ACNT device is a simple, low-cost, and broadband polarizer to control laser polarization dynamics, for various photonic applications (such as ...

  15. Synthetic laser medium

    DOE Patents [OSTI]

    Stokowski, S.E.

    1987-10-20

    A laser medium is particularly useful in high average power solid state lasers. The laser medium includes a chromium dopant and preferably neodymium ions as codopant, and is primarily a gadolinium scandium gallium garnet, or an analog thereof. Divalent cations inhibit spiral morphology as large boules from which the laser medium is derived are grown, and a source of ions convertible between a trivalent state and a tetravalent state at a low ionization energy are in the laser medium to reduce an absorption coefficient at about one micron wavelength otherwise caused by the divalent cations. These divalent cations and convertible ions are dispersed in the laser medium. Preferred convertible ions are provided from titanium or cerium sources.

  16. Laser Oil and Gas Well Drilling Demonstration Videos

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    ANL's Laser Applications Laboratory and collaborators are examining the feasibility of adapting high-power laser technology to drilling for gas and oil. The initial phase is designed to establish a scientific basis for developing a commercial laser drilling system and determine the level of gas industry interest in pursuing future research. Using lasers to bore a hole offers an entirely new approach to mechanical drilling. The novel drilling system would transfer light energy from lasers on the surface, down a borehole by a fiber optic bundle, to a series of lenses that would direct the laser light to the rock face. Researchers believe that state-of-the-art lasers have the potential to penetrate rock many times faster than conventional boring technologies - a huge benefit in reducing the high costs of operating a drill rig. Because the laser head does not contact the rock, there is no need to stop drilling to replace a mechanical bit. Moreover, researchers believe that lasers have the ability to melt the rock in a way that creates a ceramic sheath in the wellbore, eliminating the expense of buying and setting steel well casing. A laser system could also contain a variety of downhole sensors, including visual imaging systems that could communicate with the surface through the fiber optic cabling. Earlier studies have been promising, but there is still much to learn. One of the primary objectives of the new study will be to obtain much more precise measurements of the energy requirements needed to transmit light from surface lasers down a borehole with enough power to bore through rocks as much as 20,000 feet or more below the surface. Another objective will be to determine if sending the laser light in sharp pulses, rather than as a continuous stream, could further increase the rate of rock penetration. A third aspect will be to determine if lasers can be used in the presence of drilling fluids. In most wells, thick fluids called "drilling muds" are injected into the borehole to wash out rock cuttings and keep water and other fluids from the underground formations from seeping into the well. The technical challenge will be to determine whether too much laser energy is expended to clear away the fluid where the drilling is occurring. (Copied with editing from http://www.ne.anl.gov/facilities/lal/laser_drilling.html). The demonstration videos, provided here in QuickTime format, are accompanied by patent documents and PDF reports that, together, provide an overall picture of this fascinating project.

  17. Overview of Fusion Nuclear Technology in the US

    E-Print Network [OSTI]

    / Shield Module 18 ­ Tokamak Exhaust Plant IFE Technology Research ­ High Average Power Laser ­ Z) Department of Energy (DOE) Enabling Technologies Program ITER Project Office (US-IPO) High Average Power is coordinated by the Virtual Laboratory for Technology - VLT Director S. Milora Deputy Director D. Petti Program

  18. AVLIS: The technology for the future

    SciTech Connect (OSTI)

    Rifakes, G.

    1994-12-31

    Gaseous diffusion plants have been in operation for more than 40 yr. Recognizing that these plants have a finite life, the U.S. Department of Energy (DOE) in the early 1970s began investing in advanced technologies to determine which technology would be best suited to replace these plants. The two technologies pursued by the DOE were atomic vapor laser isotope separation (AVLIS) and gas centrifuge. In 1984, the DOE determined that it was in its best interest to stop work on centrifuge technology and to continue AVLIS research. In excess of $1 billion has been sent to further the AVLIS technology.

  19. Fluorinated laser dyes

    DOE Patents [OSTI]

    Hammond, Peter R. (Livermore, CA); Feeman, James F. (Wyomissing, PA)

    1992-01-01

    A novel class of dye is disclosed which is particularly efficient and stable for dye laser applications, lasing between 540 and 570 nm.

  20. Laser Compression of Tantalum /

    E-Print Network [OSTI]

    Lu, Chia-Hui

    2013-01-01

    of this container was filled with aerogel, which acts as aafter laser compression. Aerogel was designed to deceleratein this geometry. The aerogel did not introduce any

  1. Novel fluorinated laser dyes

    DOE Patents [OSTI]

    Hammond, Peter R. (Livermore, CA); Feeman, James F. (Wyomissing, PA)

    1991-01-01

    A novel class of dye is disclosed which is particularly efficient and stable for dye laser applications, lasing between 540 and 570 nm.

  2. Fusion reactor pumped laser

    DOE Patents [OSTI]

    Jassby, Daniel L. (Princeton, NJ)

    1988-01-01

    A nuclear pumped laser capable of producing long pulses of very high power laser radiation is provided. A toroidal fusion reactor provides energetic neutrons which are slowed down by a moderator. The moderated neutrons are converted to energetic particles capable of pumping a lasing medium. The lasing medium is housed in an annular cell surrounding the reactor. The cell includes an annular reflecting mirror at the bottom and an annular output window at the top. A neutron reflector is disposed around the cell to reflect escaping neutrons back into the cell. The laser radiation from the annular window is focused onto a beam compactor which generates a single coherent output laser beam.

  3. Development of pulse laser processing for mounting fiber Bragg grating

    SciTech Connect (OSTI)

    Nishimura, Aikihko; Shimada, Yukihiro; Yonemoto, Yukihiro; Suzuki, Hirokazu; Ishibashi, Hisayoshi [Quantum Beam Science Directorate, Japan Atomic Energy Agency, 8-1-7 Umebidai Kidugawa Kyoto 619-0215 (Japan); Applied Laser Technology Institute, Tsuruga Head Office, Japan Atomic Energy Agency, 65-20 Kizaki Tsuruga Fukui 914-8585 (Japan); Technical Research and Development Institute, Kumagai Gumi Co., Ltd., 2-1 Tsukudo, Shinjuku Tokyo 162-8557 (Japan)

    2012-07-11

    Pulse laser processing has been developed for the application of industrial plants in monitoring and maintenance. Surface cleaning by nano-second laser ablation was demonstrated for decontamination of oxide layers of Cr contained steel. Direct writing by femtosecond processing induced a Bragg grating in optical fiber to make it a seismic sensor for structural health monitoring. Adhesive cement was used to fix the seismic sensor on the surface of reactor coolant pipe material. Pulse laser processing and its related technologies were presented to overcome the severe accidents of nuclear power plants.

  4. Tailored Ceramics for Laser Applications /

    E-Print Network [OSTI]

    Hollingsworth, Joel Philip

    2013-01-01

    1.1 Laser ceramic basics . . . . . . . . . . . . . . . . . .1.1.1 Advantages of laser ceramics . . . . . . . . . . .1.1.2 Challenges to laser ceramic green-body tailoring 1.2

  5. 5th Annual CHP Roadmap Workshop Breakout Group Results, September...

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

    document summarizes results from the 5th Annual Combined Heat and Power (CHP) Workshop from the following breakout groups: CHP Technologies, CHP Markets, Utility and Regulatory...

  6. Jefferson Lab's Detector Group Wins Prestigious National Award...

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

    Group, which developed a life-saving compact gamma camera for the improved detection of breast cancer, has been recognized with an award for "excellence in technology transfer"...

  7. INFORMATION TECHNOLOGY SERVICES CRM Agent Training

    E-Print Network [OSTI]

    McQuade, D. Tyler

    INFORMATION TECHNOLOGY SERVICES CRM Agent Training Assigning an agent to a case Service Management case, select the case number. INFORMATION TECHNOLOGY SERVICES #12;3 5. When the case page has opened TECHNOLOGY SERVICES #12;4 7. Select the appropriate provider group. INFORMATION TECHNOLOGY SERVICES #12;5 8

  8. The Economics of a Technology-Based

    E-Print Network [OSTI]

    98-2 Planning Report The Economics of a Technology-Based Service Sector Prepared by: TASC, Inc. for National Institute of Standards & Technology Program Office Strategic Planning and Economic Analysis Group January 1998 U.S Department of Commerce Technology Administration #12;#12;THE ECONOMICS OF A TECHNOLOGY

  9. LASER Safety Manual August 2007

    E-Print Network [OSTI]

    UW LASER Safety Manual August 2007 Radiation Safety Office Environmental Health and Safety;Contents 1. Laser Basics 1.1 Laser Theory 1.2 Types of Lasers 2. Hazards and Safety Standards 2 2.6.4 Other Hazards 2.7 Hazard Classes 2.7.1 Introduction 2.7.2 Class 3B Lasers 2.7.3 Class 4 Lasers

  10. We are inviting applications for a PhD position in the group of Environmental Chemistry at the Swiss Federal Institute of Technology (ETH) in Zurich (Dr. Michael Sander; Prof. Kristopher

    E-Print Network [OSTI]

    Uppsala Universitet

    Institute of Aquatic Science and Technology (Eawag). PhD position in Environmental Chemistry / Environmental) and environmental factors, including microbial and enzymatic activity, soil chemistry, water content, temperature research effort to elucidate the environmental fate and chemistry of biomacromolecules, including polymers

  11. Exploration Technologies - Technology Needs Assessment

    SciTech Connect (OSTI)

    Greene, Amanda I.; Thorsteinsson, Hildigunnur; Reinhardt, Tim; Solomon, Samantha; James, Mallory

    2011-06-01

    This assessment is a critical component of ongoing technology roadmapping efforts, and will be used to guide the Geothermal Technology Program's research and development.

  12. Relativistic Laser-Matter Interactions

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

    Relativistic Laser-Matter Interactions Relativistic Laser-Matter Interactions Enabling the next generation of intense particle accelerators Contact Juan Fernandez (505) 667-6575...

  13. Laser Micromachining: Advantages of Liquid Environments

    E-Print Network [OSTI]

    Petta, Jason

    Laser Micromachining: Advantages of Liquid Environments Marc J. Palmeri Princeton University Arnold Lab #12;Outline · Motivation ­ Applications of laser micromachining ­ Problems with laser micromachining · How do lasers work? · What is laser micromachining? · Micromachining assembly · Methods

  14. Compact Gamma-ray Source Technology Development Study

    SciTech Connect (OSTI)

    Anderson, S G; Gibson, D J; Rusnak, B

    2009-09-25

    This study focuses on the applicability of current accelerator and laser technologies to the construction of compact, narrow bandwidth, gamma-ray sources for DHS missions in illicit materials detection. It also identifies research and development areas in which advancement will directly benefit these light sources. In particular, we review the physics of Compton scattering based light sources and emphasize the source properties most important to Nuclear Resonance Fluorescence (NRF) applications of interest. The influences of laser and electron beam properties on the light source are examined in order to evaluate the utility of different technologies for this application. Applicable bulk and fiber-based laser systems and laser recirculation technologies are discussed and Radio Frequency (RF) Linear Accelerator (linac) technologies are examined to determine the optimal frequency and pulse formats achievable.

  15. Properties of Group Five and Group Seven transactinium elements

    E-Print Network [OSTI]

    Wilk, Philip A.

    2001-01-01

    of Group Five and Group Seven Transactinium Elementsof Group Five and Group Seven Transactinium Elements byof Group Five and Group Seven Transactinium Elements by

  16. Summary Report of Working Group 1: Laser-Plasma Acceleration

    E-Print Network [OSTI]

    Geddes, C.G.R.

    2011-01-01

    improvement in beam quality and energy. These sessions werethat the highest quality and energy beams were observed.and focal spot quality, showing that energy in the central

  17. USD Catalysis Group for Alternative Energy

    SciTech Connect (OSTI)

    Hoefelmeyer, James D.; Koodali, Ranjit; Sereda, Grigoriy; Engebretson, Dan; Fong, Hao; Puszynski, Jan; Shende, Rajesh; Ahrenkiel, Phil

    2012-03-13

    The South Dakota Catalysis Group (SDCG) is a collaborative project with mission to develop advanced catalysts for energy conversion with two primary goals: (1) develop photocatalytic systems in which polyfunctionalized TiO2 are the basis for hydrogen/oxygen synthesis from water and sunlight (solar fuels group), (2) develop new materials for hydrogen utilization in fuel cells (fuel cell group). In tandem, these technologies complete a closed chemical cycle with zero emissions.

  18. Chlorofluorocarbon leak detection technology

    SciTech Connect (OSTI)

    Munday, E.B.

    1990-12-01

    There are about 590 large coolant systems located at the Portsmouth Gaseous Diffusion Plant (PORTS) and the Paducah Gaseous Diffusion Plant (PGDP) leaking nearly 800,000 lb of R-114 refrigerant annually (1989 estimate). A program is now under way to reduce the leakage to 325,000 lb/year -- an average loss of 551 lb/year (0.063 lb/h) per coolant system, some of which are as large as 800 ft. This report investigates leak detection technologies that can be used to locate leaks in the coolant systems. Included are descriptions, minimum leak detection rate levels, advantages, disadvantages, and vendor information on the following technologies: bubbling solutions; colorimetric leak testing; dyes; halogen leak detectors (coronea discharge detectors; halide torch detectors, and heated anode detectors); laser imaging; mass spectroscopy; organic vapor analyzers; odorants; pressure decay methods; solid-state electrolytic-cell gas sensors; thermal conductivity leak detectors; and ultrasonic leak detectors.

  19. Laser beam generating apparatus

    DOE Patents [OSTI]

    Warner, B.E.; Duncan, D.B.

    1994-02-15

    Laser beam generating apparatus including a septum segment disposed longitudinally within the tubular structure of the apparatus is described. The septum provides for radiatively dissipating heat buildup within the tubular structure and for generating relatively uniform laser beam pulses so as to minimize or eliminate radial pulse delays (the chevron effect). 7 figures.

  20. Liquid heat capacity lasers

    DOE Patents [OSTI]

    Comaskey, Brian J. (Walnut Creek, CA); Scheibner, Karl F. (Tracy, CA); Ault, Earl R. (Livermore, CA)

    2007-05-01

    The heat capacity laser concept is extended to systems in which the heat capacity lasing media is a liquid. The laser active liquid is circulated from a reservoir (where the bulk of the media and hence waste heat resides) through a channel so configured for both optical pumping of the media for gain and for light amplification from the resulting gain.

  1. Explosively pumped laser light

    DOE Patents [OSTI]

    Piltch, Martin S. (Los Alamos, NM); Michelotti, Roy A. (Los Alamos, NM)

    1991-01-01

    A single shot laser pumped by detonation of an explosive in a shell casing. The shock wave from detonation of the explosive causes a rare gas to luminesce. The high intensity light from the gas enters a lasing medium, which thereafter outputs a pulse of laser light to disable optical sensors and personnel.

  2. Laser beam generating apparatus

    DOE Patents [OSTI]

    Warner, B.E.; Duncan, D.B.

    1993-12-28

    Laser beam generating apparatus including a septum segment disposed longitudinally within the tubular structure of the apparatus. The septum provides for radiatively dissipating heat buildup within the tubular structure and for generating relatively uniform laser beam pulses so as to minimize or eliminate radial pulse delays (the chevron effect). 11 figures.

  3. Thermally Activated Technologies Technology Roadmap, May 2003...

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

    Thermally Activated Technologies Technology Roadmap, May 2003 Thermally Activated Technologies Technology Roadmap, May 2003 The purpose of this Technology Roadmap is to outline a...

  4. Catalac free electron laser

    DOE Patents [OSTI]

    Brau, Charles A. (Los Alamos, NM); Swenson, Donald A. (Los Alamos, NM); Boyd, Jr., Thomas J. (Los Alamos, NM)

    1982-01-01

    A catalac free electron laser using a rf linac (catalac) which acts as a catalyst to accelerate an electron beam in an initial pass through the catalac and decelerate the electron beam during a second pass through the catalac. During the second pass through the catalac, energy is extracted from the electron beam and transformed to energy of the accelerating fields of the catalac to increase efficiency of the device. Various embodiments disclose the use of post linacs to add electron beam energy extracted by the wiggler and the use of supplementary catalacs to extract energy at various energy peaks produced by the free electron laser wiggler to further enhance efficiency of the catalac free electron laser. The catalac free electron laser can be used in conjunction with a simple resonator, a ring resonator or as an amplifier in conjunction with a master oscillator laser.

  5. Laser controlled flame stabilization

    DOE Patents [OSTI]

    Early, James W. (Los Alamos, NM); Thomas, Matthew E. (Huntsville, AL)

    2001-01-01

    A method and apparatus is provided for initiating and stabilizing fuel combustion in applications such as gas turbine electrical power generating engines and jet turbine engines where it is desired to burn lean fuel/air mixtures which produce lower amounts of NO.sub.x. A laser induced spark is propagated at a distance from the fuel nozzle with the laser ignitor being remotely located from the high temperature environment of the combustion chamber. A laser initiating spark generated by focusing high peak power laser light to a sufficiently tight laser spot within the fuel to cause the ionization of air and fuel into a plasma is unobtrusive to the flow dynamics of the combustion chamber of a fuel injector, thereby facilitating whatever advantage can be taken of flow dynamics in the design of the fuel injector.

  6. Draft Needs Assessment for Innovative Exploration Technologies...

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

    (IET) Subprogram sponsored a technology planning workshop on October 28, 2010, in Sacramento, California. The workshop brought together a diverse group of experts from industry,...

  7. TEC Working Group Topic Groups Tribal

    Broader source: Energy.gov [DOE]

    The Tribal Topic Group was established in January 1998 to address government-to-government consultation between DOE and Indian Tribes affected by its transportation activities. The group focuses on...

  8. Laser separation of medical isotopes

    SciTech Connect (OSTI)

    Eerkens, J.W.; Puglishi, D.A.; Miller, W.H.

    1996-12-31

    There is an increasing demand for different separated isotopes as feed material for reactor and cyclotron-produced radioisotopes used by a fast-growing radiopharmaceutical industry. One new technology that may meet future demands for medical isotopes is molecular laser isotope separation (MLIS). This method was investigated for the enrichment of uranium in the 1970`s and 1980s by Los Alamos National Laboratory, Isotope Technologies, and others around the world. While South Africa and Japan have continued the development of MLIS for uranium and are testing pilot units, around 1985 the United States dropped the LANL MLIS program in favor of AVLIS (atomic vapor LIS), which uses electron-beam-heated uranium metal vapor. AVLIS appears difficult and expensive to apply to most isotopes of medical interest, however, whereas MLIS technology, which is based on cooled hexafluorides or other gaseous molecules, can be adapted more readily. The attraction of MLIS for radiopharmaceutical firms is that it allows them to operate their own dedicated separators for small-quantity productions of critical medical isotopes, rather than having to depend on large enrichment complexes run by governments, which are only optimal for large-quantity productions. At the University of Missouri, the authors are investigating LIS of molybdenum isotopes using MoF{sub 6}, which behaves in a way similar to UF{sub 6}, studied in the past.

  9. Energy-Efficient Commercial Technologies

    Broader source: Energy.gov [DOE]

    Presentation—given at the April 2012 Federal Utility Partnership Working Group (FUPWG) meeting—discusses energy-efficient technologies such as boilers, air conditioners, heat pumps, humidity controls, combined heat and power (CHP), and more.

  10. Characterization of the Los Alamos IPG YLR-6000 fiber laser using multiple optical paths and laser focusing optics

    SciTech Connect (OSTI)

    Milewski, John O [Los Alamos National Laboratory; Bernal, John E [Los Alamos National Laboratory

    2009-01-01

    Fiber laser technology has been identified as the replacement power source for the existing Los Alamos TA-55 production laser welding system. An IPG YLR-6000 fiber laser was purchased, installed at SM-66 R3, and accepted in February 2008. No characterization of the laser and no welding was performed in the Feb 2008 to May 2009 interval. T. Lienert and J. Bernal (Ref. 1, July 2009) determined the existing 200 mm Rofin collimator and focus heads used with the Rofin diode pumped lasers were inadequate for use with the IPG laser due to clipping of the IPG laser beam. Further efforts in testing of the IPG laser with Optoskand fiber delivery optics and a Rofin 120 mm collimator proved problematic due to optical fiber damage. As a result, IPG design optical fibers were purchased as replacements for subsequent testing. Within the same interval, an IPG fiber-to-fiber (F2F) connector, custom built for LANL, (J. Milewski, S. Gravener, Ref.2) was demonstrated and accepted at IPG Oxford, MA in August 2009. An IPG service person was contracted to come to LANL to assist in the installation, training, troubleshooting and characterization of the multiple beam paths and help perform laser head optics characterization. The statement of work is provided below: In summary the laser system, optical fibers, F2F connector, Precitec head, and a modified Rofin type (w/120mm Optoskand collimator) IWindowIBoot system focus head (Figure 1) were shown to perform well at powers up to 6 kW CW. Power measurements, laser spot size measurements, and other characterization data and lessons learned are contained within this report. In addition, a number of issues were identified that will require future resolution.

  11. Nanoscale Science, Engineering and Technology Research Directions

    E-Print Network [OSTI]

    Wu, Zhigang

    OF CONTENTS Basic Energy Sciences Nanoscience/Nanotechnology Group Basic Energy Sciences Nanoscience/Nanotechnology Group Chair: Douglas H. Lowndes (ORNL) A. Paul#12;#12;Nanoscale Science, Engineering and Technology Research Directions ABSTRACT This report

  12. Colliding Laser Pulses for Laser-Plasma Accelerator Injection Control

    E-Print Network [OSTI]

    Geddes, Cameron Guy Robinson

    Colliding Laser Pulses for Laser-Plasma Accelerator Injection Control G. R. Plateau, , C. G. R acceleration is a key challenge to achieve compact, reliable, tunable laser-plasma accelerators (LPA) [1, 2]. In colliding pulse injection the beat between multiple laser pulses can be used to control energy, energy

  13. The Theta Laser A Low Noise Chirped Pulse Laser

    E-Print Network [OSTI]

    Van Stryland, Eric

    The Theta Laser A Low Noise Chirped Pulse Laser Dimitrios Mandridis dmandrid@creol.ucf.edu April 29, 2011 CREOL Affiliates Day 2011 #12;2 Objective: Frequency Swept (FM) Mode-locked Laser · Develop a frequency swept laser, · linear f-sweep, · uniform-intensity, · low noise, · with long-term stability

  14. Laser-Plasma Wakefield Acceleration with Higher Order Laser Modes

    E-Print Network [OSTI]

    Geddes, Cameron Guy Robinson

    Laser-Plasma Wakefield Acceleration with Higher Order Laser Modes C.G.R. Geddes , E. Cormier. Nevada, Reno and U.C. Berkeley Abstract. Laser-plasma collider designs point to staging of multiple accelerator stages at the 10 GeV level, which are to be developed on the upcoming BELLA laser, while Thomson

  15. Active mode locking of quantum cascade lasers operating in external ring cavity

    E-Print Network [OSTI]

    Revin, D G; Wang, Y; Cockburn, J W; Belyanin, A

    2015-01-01

    Stable ultrashort light pulses and frequency combs generated by mode-locked lasers have many important applications including high-resolution spectroscopy, fast chemical detection and identification, studies of ultrafast processes, and laser metrology. While compact mode-locked lasers emitting in the visible and near infrared range have revolutionized photonic technologies, the systems operating in the mid-infrared range where most gases have their strong absorption lines, are bulky and expensive and rely on nonlinear frequency down-conversion. Quantum cascade lasers are the most powerful and versatile compact light sources in the mid-infrared range, yet achieving their mode locked operation remains a challenge despite dedicated effort. Here we report the first demonstration of active mode locking of an external-cavity quantum cascade laser. The laser operates in the mode-locked regime at room temperature and over the full dynamic range of injection currents of a standard commercial laser chip.

  16. 2013 R&D 100 Award: New tech could mean more power for fiber lasers

    ScienceCinema (OSTI)

    Dawson, Jay

    2014-07-21

    An LLNL team of six physicists has developed a new technology that is a stepping stone to enable some of the limitations on high-power fiber lasers to be overcome. Their technology, dubbed "Efficient Mode-Converters for High-Power Fiber Amplifiers," allows the power of fiber lasers to be increased while maintaining high beam quality. Currently, fiber lasers are used in machining, on factory floors and in a number of defense applications and can produce tens of kilowatts of power.The conventional fiber laser design features a circular core and has fundamental limitations that make it impractical to allow higher laser power unless the core area is increased. LLNL researchers have pioneered a design to increase the laser's core area along the axis of the ribbon fiber. Their design makes it difficult to use a conventional laser beam, so the LLNL team converted the beam into a profile that propagates into the ribbon fiber and is converted back once it is amplified. The use of this LLNL technology will permit the construction of higher power lasers for lower costs and increase the power of fiber lasers from tens of kilowatts of power to about 100 kilowatts and potentially even higher.

  17. Limiting effects on laser compression by resonant backward Raman scattering in modern experimentsa)

    E-Print Network [OSTI]

    the cost of the CPA laser and CPA technology approaches its practical limit. Alternatively, plasma can then as the energy and momentum conservation laws of the decay. The pump energy transferred into the plasma wave energy can be small as long as the plasma-to-laser frequency ratio remains small. However, the plasma

  18. 1 GeV Electron Beams from a Laser-Driven Channel-Guided Accelerator

    E-Print Network [OSTI]

    Geddes, Cameron Guy Robinson

    energy lasers. The radiation pressure of an intense laser pulse drives a space charge wave in a plasma [1 particle accelerators for radiation sources, high-energy physics, and other applications are typically machines. A different technology for generating intense energetic electron beams and synchronized

  19. Silent Study Group Study

    E-Print Network [OSTI]

    Thompson, Michael

    36/72 36/7236/72 36/72 36/72 Silent Study Room 108C Group Study Room 108J Office Room 108A Office Room 108B Staff Room Room 108K Group Study Room 108I Group Study Room 108H Group Study Room 108G Group Study Room 108F Group Study Room 108E Group Study Room 108D Service Area Research Help / Circulation

  20. A versatile high-resolution x-ray imager (HRXI) for laser-plasma...

    Office of Scientific and Technical Information (OSTI)

    x-ray imager (HRXI) devoted to laser-plasma experiments combines two state-of-the-art technologies developed in France: a high-resolution x-ray microscope and a high-speed...

  1. To be the leader in research, development, and education, concentrating on laser and

    E-Print Network [OSTI]

    stack engineering; atomic layer deposition (ALD) technology of electronic thin film materials FABRICATION · Atomic layer deposition (ALD) · Molecular beam epitaxy (MBE) · Pulsed laser deposition (PLD deposition; semiconductor surface preparation and characterization; electron emitters and electron gun design

  2. Towards room-temperature Terahertz Quantum Cascade Lasers : directions and design

    E-Print Network [OSTI]

    Chan, Chun Wang Ivan

    2015-01-01

    Terahertz Quantum Cascade Lasers (THz QCLs) are arguably the most promising technology today for the compact, efficient generation of THz radiation. Their main limitation is that they require cryogenic cooling, which ...

  3. DOE Center of Excellence in Medical Laser Applications. Final report, December 1, 1994--November 30, 1997

    SciTech Connect (OSTI)

    Jacques, S.L.

    1998-01-01

    An engineering network of collaborating medical laser laboratories are developing laser and optical technologies for medical diagnosis and therapy and are translating the engineering into medical centers in Portland OR, Houston TX, and Galveston TX. The Center includes the University of Texas M.D. Anderson Cancer Center, the University of Texas-Austin, Texas A and M University, Rice University, the University Texas Medical Branch-Galveston, Oregon Medical Laser Center (Providence St. Vincent Medical Center, Oregon Health Sciences University, and Oregon Graduate Institute, Portland, OR), and the University of Oregon. Diagnostics include reflectance, fluorescence, Raman IR, laser photoacoustics, optical coherence tomography, and several new video techniques for spectroscopy and imaging. Therapies include photocoagulation therapy, laser welding, pulsed laser ablation, and light-activated chemotherapy of cancer (photodynamic therapy, or PDT). Medical applications reaching the clinic include optical monitoring of hyperbilirubinemia in newborns, fluorescence detection of cervical dysplasia, laser thrombolysis of blood clots in heart attack and brain stroke, photothermal coagulant of benign prostate hyperplasia, and PDT for both veterinary and human cancer. New technologies include laser optoacoustic imaging of breast tumors and hemorrhage in head trauma and brain stroke, quality control monitoring of dosimetry during PDT for esophageal and lung cancer, polarization video reflectometry of skin cancer, laser welding of artificial tissue replacements, and feedback control of laser welding.

  4. , 7 2011, 7 2011 : LASER

    E-Print Network [OSTI]

    Psarrakos, Panayiotis

    : ­ ­ , 7 2011, 7 2011 `' #12; : ­ ­ , 7 2011 : LASER : : : & · : & (-) - - - . · : laser ­ · : ­ & · : > 50 & (---) · ­ : lidar (- ) ­ -3 lidar (WMO, ESA; : ­ ­ , 7 2011 : LASER : : : & · : · : laser · : ( 10 m) · : > 5

  5. 1982 laser program annual report

    SciTech Connect (OSTI)

    Hendricks, C.D.; Grow, G.R.

    1983-08-01

    This annual report covers the following eight sections: (1) laser program review, (2) laser systems and operation, (3) target design, (4) target fabrication, (5) fusion experiments program, (6) Zeus laser project, (7) laser research and development, and (8) energy applications. (MOW)

  6. Ultra-fast laser system

    DOE Patents [OSTI]

    Dantus, Marcos; Lozovoy, Vadim V

    2014-01-21

    A laser system is provided which selectively excites Raman active vibrations in molecules. In another aspect of the present invention, the system includes a laser, pulse shaper and detection device. A further aspect of the present invention employs a femtosecond laser and binary pulse shaping (BPS). Still another aspect of the present invention uses a laser beam pulse, a pulse shaper and remote sensing.

  7. Atomic vapor laser isotope separation

    SciTech Connect (OSTI)

    Stern, R.C.; Paisner, J.A.

    1986-08-15

    The atomic vapor laser isotope separation (AVLIS) process for the enrichment of uranium is evaluated. (AIP)

  8. Piezoelectric measurement of laser power

    DOE Patents [OSTI]

    Deason, Vance A. (Idaho Falls, ID); Johnson, John A. (Idaho Falls, ID); Telschow, Kenneth L. (Idaho Falls, ID)

    1991-01-01

    A method for measuring the energy of individual laser pulses or a series of laser pulses by reading the output of a piezoelectric (PZ) transducer which has received a known fraction of the total laser pulse beam. An apparatus is disclosed that reduces the incident energy on the PZ transducer by means of a beam splitter placed in the beam of the laser pulses.

  9. Science & Technology Review October 2007

    SciTech Connect (OSTI)

    Chinn, D J

    2007-08-21

    Livermore researchers won five R&D 100 awards in R&D Magazine's annual competition for the top 100 industrial innovations worldwide. This issue of Science & Technology Review highlights the award-winning technologies: noninvasive pneumothorax detector, microelectromechanical system-based adaptive optics scanning laser ophthalmoscope, large-area imager, hyper library of linear solvers, and continuous-phase-plate optics system manufactured using magnetorheological finishing. Since 1978, Laboratory researchers have received 118 R&D 100 awards. The R&D 100 logo (on the cover and p 1) is reprinted courtesy of R&D Magazine.

  10. Matrix Groups Max Neunhffer

    E-Print Network [OSTI]

    St Andrews, University of

    Matrix Groups Max Neunhöffer Introduction GAP examples Matrix groups in GAP Schreier-Sims Problems Group algebras SLPs Constructive recognition The problem Troubles Matrix Groups Max Neunhöffer University of St Andrews GAC 2010, Allahabad #12;Matrix Groups Max Neunhöffer Introduction GAP examples

  11. GROUP THERAPY Syracuse University

    E-Print Network [OSTI]

    McConnell, Terry

    your individual needs. In a group, up to eight students meet with one or two group therapists. MostGROUP THERAPY Syracuse University Counseling Center 200 Walnut Place Phone: 315-443-4715 Fax: 315-443-4276 counselingcenter.syr.edu WHAT STUDENTS SAY ABOUT GROUP THERAPY I was really anxious about joining a group

  12. Technology integration project: Environmental Restoration Technologies Department Sandia National Laboratories

    SciTech Connect (OSTI)

    Williams, C.V.; Burford, T.D. [Sandia National Labs., Albuquerque, NM (United States). Environmental Restoration Technologies] [Sandia National Labs., Albuquerque, NM (United States). Environmental Restoration Technologies; Allen, C.A. [Tech Reps, Inc., Albuquerque, NM (United States)] [Tech Reps, Inc., Albuquerque, NM (United States)

    1996-08-01

    Sandia National Laboratories Environmental Restoration Technologies Department is developing environmental restoration technologies through funding form the US Department of Energy`s (DOE`s) Office of Science and Technology. Initially, this technology development has been through the Mixed Waste Landfill Integrated Demonstration (MWLID). It is currently being developed through the Contaminant Plume containment and Remediation Focus Area, the Landfill Stabilization Focus Area, and the Characterization, Monitoring, and Sensor Cross-Cutting Program. This Technology Integration Project (TIP) was responsible for transferring MWLID-developed technologies for routine use by environmental restoration groups throughout the DOE complex and commercializing these technologies to the private sector. The MWLID`s technology transfer/commercialization successes were achieved by involving private industry in development, demonstration, and technology transfer/commercialization activities; gathering and disseminating information about MWLID activities and technologies; and promoting stakeholder and regulatory involvement. From FY91 through FY95, 30 Technical Task Plans (TTPs) were funded. From these TTPs, the MWLID can claim 15 technology transfer/commercialization successes. Another seven technology transfer/commercialization successes are expected. With the changeover to the focus areas, the TIP continued the technology transfer/commercialization efforts begun under the MWLID.

  13. Fiber optic laser rod

    DOE Patents [OSTI]

    Erickson, G.F.

    1988-04-13

    A laser rod is formed from a plurality of optical fibers, each forming an individual laser. Synchronization of the individual fiber lasers is obtained by evanescent wave coupling between adjacent optical fiber cores. The fiber cores are dye-doped and spaced at a distance appropriate for evanescent wave coupling at the wavelength of the selected dye. An interstitial material having an index of refraction lower than that of the fiber core provides the optical isolation for effective lasing action while maintaining the cores at the appropriate coupling distance. 2 figs.

  14. Laser Wakefield Particle Acceleration

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformationJesse Bergkamp Graduate studentScienceLaboratoryandBryanoutreach LaserLaserLaser

  15. Accelerator technology program. Progress report, July-December 1980

    SciTech Connect (OSTI)

    Knapp, E.A.; Jameson, R.A. (comp.)

    1982-01-01

    The activities of Los Alamos National Laboratory's Accelerator Technology Division are discussed. This report covers the last six months of calendar 1980 and is organized around the Division's major projects. These projects reflect a wide variety of applications and sponsors. The major technological innovations promoted by the Pion Generator for Medical Irradiation (PIGMI) program have been developed; accelerator technologies relevant to the design of a medically practical PIGMI have been identified. A new group in AT Division deals with microwave and magnet studies; we describe the status of some of their projects. We discuss the prototype gyrocon, which has been completed, and the development of the radio-frequency quadrupole linear accelerator, which continues to stimulate interest for many possible applications. One section of this report briefly describes the results of a design study for an electron beam ion source that is ideally suited as an injector for a heavy ion linac; another section reports on a turbine engine test facility that will expose operating turbine engines to simulated maneuver forces. In other sections we discuss various activities: the Fusion Materials Irradiation Test program, the free-electron laser program, the racetrack microtron project, the Proton Storage ring, and H/sup -/ ion sources and injectors.

  16. Guidance for Preparing Annual Agency Technology Transfer Reports Under the Technology Transfer Commercialization Act

    E-Print Network [OSTI]

    Guidance for Preparing Annual Agency Technology Transfer Reports Under the Technology Transfer U.S. Department of Commerce in conjunction with The Interagency Working Group on Technology Transfer May 2013 #12;2 Introduction Under the Technology Transfer Commercialization Act of 2000 (P.L. 106

  17. Efficient generation of twin photons at telecom wavelengths with 10 GHz repetition-rate tunable comb laser

    E-Print Network [OSTI]

    Rui-Bo Jin; Ryosuke Shimizu; Isao Morohashi; Kentaro Wakui; Masahiro Takeoka; Shuro Izumi; Takahide Sakamoto; Mikio Fujiwara; Taro Yamashita; Shigehito Miki; Hirotaka Terai; Zhen Wang; Masahide Sasaki

    2014-09-10

    Efficient generation and detection of indistinguishable twin photons are at the core of quantum information and communications technology (Q-ICT). These photons are conventionally generated by spontaneous parametric down conversion (SPDC), which is a probabilistic process, and hence occurs at a limited rate, which restricts wider applications of Q-ICT. To increase the rate, one had to excite SPDC by higher pump power, while it inevitably produced more unwanted multi-photon components, harmfully degrading quantum interference visibility.Here we solve this problem by using recently developed 10 GHz repetition-rate-tunable comb laser, combined with a group-velocity-matched nonlinear crystal, and superconducting nanowire single photon detectors. They operate at telecom wavelengths more efficiently with less noises than conventional schemes, those typically operate at visible and near infrared wavelengths generated by a 76 MHz Ti Sapphire laser and detected by Si detectors. We could show high interference visibilities, which are free from the pump-power induced degradation. Our laser, nonlinear crystal, and detectors constitute a powerful tool box, which will pave a way to implementing quantum photonics circuits with variety of good and low-cost telecom components, and will eventually realize scalable Q-ICT in optical infra-structures.

  18. GRAYSTONE GROUP ADVERTISING

    E-Print Network [OSTI]

    Wu, Shin-Tson

    and GRAYSTONE GROUP ADVERTISING Partnership The University Central Florida has partnered with the Graystone Group for the purposes of facilitating recruitment advertising services. Benefits of partnering evaluations. Placing Recruitment Advertising: · Graystone Group is available to support all your recruitment

  19. HEMISPHERIC CENTER FOR ENVIRONMENTAL TECHNOLOGY

    SciTech Connect (OSTI)

    M.A. Ebadian

    1999-01-31

    FIU-HCET participated in an ICT meeting at Mound during the second week of December and presented a brief videotape of the testing of the Robotic Climber technology. During this meeting, FIU-HCET proposed the TechXtract technology for possible testing at Mound and agreed to develop a five-page proposal for review by team members. FIU-HCET provided assistance to Bartlett Inc. and General Lasertronics Corporation in developing a proposal for a Program Opportunity Notice (PON). The proposal was submitted by these companies on January 5, 1999. The search for new equipment dismantlement technologies is continuing. The following vendors have responded to requests for demonstration: LUMONICS, Laser Solutions technology; CRYO-BEAM, Cryogenic cutting technology; Waterjet Technology Association, Waterjet Cutting technology; and DIAJET, Waterjet Cutting technology. Based on the tasks done in FY98, FIU-HCET is working closely with Numatec Hanford Corporation (NHC) and Pacific Northwest National Laboratory (PNNL) to revise the plan and scope of work of the pipeline plugging project in FY99, which involves activities of lab-scale flow loop experiments and a large-scale demonstration test bed.

  20. Laser Plasma Interactions

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

    processes. A typical configuration uses a low intensity laser beam (2nd, 3rd, or 4th harmonic of 1054-nm) to probe a plasma volume. The Thomson scattered light is collected by a...

  1. Dynamical laser spike processing

    E-Print Network [OSTI]

    Shastri, Bhavin J; Tait, Alexander N; Rodriguez, Alejandro W; Wu, Ben; Prucnal, Paul R

    2015-01-01

    Novel materials and devices in photonics have the potential to revolutionize optical information processing, beyond conventional binary-logic approaches. Laser systems offer a rich repertoire of useful dynamical behaviors, including the excitable dynamics also found in the time-resolved "spiking" of neurons. Spiking reconciles the expressiveness and efficiency of analog processing with the robustness and scalability of digital processing. We demonstrate that graphene-coupled laser systems offer a unified low-level spike optical processing paradigm that goes well beyond previously studied laser dynamics. We show that this platform can simultaneously exhibit logic-level restoration, cascadability and input-output isolation---fundamental challenges in optical information processing. We also implement low-level spike-processing tasks that are critical for higher level processing: temporal pattern detection and stable recurrent memory. We study these properties in the context of a fiber laser system, but the addit...

  2. Terahertz quantum cascade lasers

    E-Print Network [OSTI]

    Williams, Benjamin S. (Benjamin Stanford), 1974-

    2003-01-01

    The development of the terahertz frequency range has long been impeded by the relative dearth of compact, coherent radiation sources of reasonable power. This thesis details the development of quantum cascade lasers (QCLs) ...

  3. Fusion reactor pumped laser

    DOE Patents [OSTI]

    Jassby, D.L.

    1987-09-04

    A nuclear pumped laser capable of producing long pulses of very high power laser radiation is provided. A toroidal fusion reactor provides energetic neutrons which are slowed down by a moderator. The moderated neutrons are converted to energetic particles capable of pumping a lasing medium. The lasing medium is housed in an annular cell surrounding the reactor. The cell includes an annular reflecting mirror at the bottom and an annular output window at the top. A neutron reflector is disposed around the cell to reflect escaping neutrons back into the cell. The laser radiation from the annular window is focused onto a beam compactor which generates a single coherent output laser beam. 10 figs.

  4. TEC Working Group Topic Groups Archives Communications

    Broader source: Energy.gov [DOE]

    The Communications Topic Group was convened in April 1998 to improve internal and external strategic level communications regarding DOE shipments of radioactive and other hazardous materials.

  5. EA-1655: Berkeley Lab Laser Accelerator (BELLA) Laser Acquisition, Installation and Use for Research and Development

    Broader source: Energy.gov [DOE]

    Berkeley Lab Laser Accelerator (BELLA) Laser Acquisition, Installation and Use for Research and Development

  6. Microsystems and Nanotechnology Group

    E-Print Network [OSTI]

    Pulfrey, David L.

    and energy storage. #12;Microsystems and Nanotechnology Group Microsystems and Nanotechnology Group 2, catalytic chemical vapor deposition of carbon nanotubes, nanowire (silicon, germanium) growth, nanocom

  7. Specific Group Hardware

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

    Specific Group Hardware Specific Group Hardware ALICE palicevo1 The Virtual Organization (VO) server. Serves as gatekeeper for ALICE jobs. It's duties include getting assignments...

  8. A comparison of surface topography characterization technologies for use in comparing spent bullet and cartridge case signatures

    SciTech Connect (OSTI)

    Batishko, C.R.; Hickman, B.J.; Cuta, F.M.

    1992-11-01

    The Pacific Northwest Laboratory was tasked by the US Department of Energy to provide technical assistance to the Federal Bureau of Investigation in evaluating and ranking technologies potentially useful in high-speed comparison of unique spent bullet and cartridge case surface signatures. Information sources included vendor input, current relevant literature, vendor phone contacts, other FBI resources, relevant PNL reports, and personal contact with numerous PNL technical staff. A comprehensive list of technologies was reduced to a list of 38 by grouping very similar methodologies, and further reduced to a short list of six by applying a set of five minimum functional requirements. A total of 14 primary criteria, many having secondary criteria, were subsequently used to evaluate each technology. The ranked short list results are reported and supported in this document, and their scores normalized to a hypothetical ideal system are as follows: (1) confocal microscopy 82.13; (2) laser dynamic focusing 72.04; (3)moire interferometry V70.94; (4)fringe field capacitance;(5)laser triangulation 66.18; (6)structured/sectioned light 65.55. Information available within the time/budget constraints which was used for the evaluation and ranking was not sufficiently detailed to evaluate specific implementations of the technologies. Each of the technologies in the short list was judged potentially capable of meeting the minimum requirements. Clever, novel engineering solutions resulting in a more cost-effective system, or a closer fit to the ``ideal system,`` could result in a reordering of the short list when actual technical proposals are evaluated. Therefore, it is recommended that a Request for Proposal not be limited to only the highest ranked technology, but include all six technologies in the short list.

  9. A comparison of surface topography characterization technologies for use in comparing spent bullet and cartridge case signatures

    SciTech Connect (OSTI)

    Batishko, C.R.; Hickman, B.J.; Cuta, F.M.

    1992-11-01

    The Pacific Northwest Laboratory was tasked by the US Department of Energy to provide technical assistance to the Federal Bureau of Investigation in evaluating and ranking technologies potentially useful in high-speed comparison of unique spent bullet and cartridge case surface signatures. Information sources included vendor input, current relevant literature, vendor phone contacts, other FBI resources, relevant PNL reports, and personal contact with numerous PNL technical staff. A comprehensive list of technologies was reduced to a list of 38 by grouping very similar methodologies, and further reduced to a short list of six by applying a set of five minimum functional requirements. A total of 14 primary criteria, many having secondary criteria, were subsequently used to evaluate each technology. The ranked short list results are reported and supported in this document, and their scores normalized to a hypothetical ideal system are as follows: (1) confocal microscopy 82.13; (2) laser dynamic focusing 72.04; (3)moire interferometry V70.94; (4)fringe field capacitance;(5)laser triangulation 66.18; (6)structured/sectioned light 65.55. Information available within the time/budget constraints which was used for the evaluation and ranking was not sufficiently detailed to evaluate specific implementations of the technologies. Each of the technologies in the short list was judged potentially capable of meeting the minimum requirements. Clever, novel engineering solutions resulting in a more cost-effective system, or a closer fit to the ideal system,'' could result in a reordering of the short list when actual technical proposals are evaluated. Therefore, it is recommended that a Request for Proposal not be limited to only the highest ranked technology, but include all six technologies in the short list.

  10. Mixed Waste Working Group report

    SciTech Connect (OSTI)

    Not Available

    1993-11-09

    The treatment of mixed waste remains one of this country`s most vexing environmental problems. Mixed waste is the combination of radioactive waste and hazardous waste, as defined by the Resource Conservation and Recovery Act (RCRA). The Department of Energy (DOE), as the country`s largest mixed waste generator, responsible for 95 percent of the Nation`s mixed waste volume, is now required to address a strict set of milestones under the Federal Facility Compliance Act of 1992. DOE`s earlier failure to adequately address the storage and treatment issues associated with mixed waste has led to a significant backlog of temporarily stored waste, significant quantities of buried waste, limited permanent disposal options, and inadequate treatment solutions. Between May and November of 1993, the Mixed Waste Working Group brought together stakeholders from around the Nation. Scientists, citizens, entrepreneurs, and bureaucrats convened in a series of forums to chart a course for accelerated testing of innovative mixed waste technologies. For the first time, a wide range of stakeholders were asked to examine new technologies that, if given the chance to be tested and evaluated, offer the prospect for better, safer, cheaper, and faster solutions to the mixed waste problem. In a matter of months, the Working Group has managed to bridge a gap between science and perception, engineer and citizen, and has developed a shared program for testing new technologies.

  11. Insulator for laser housing

    DOE Patents [OSTI]

    Duncan, D.B.

    1992-12-29

    The present invention provides a heat-resistant electrical insulator adapted for joining laser housing portions, which insulator comprises: an annulus; a channel in the annulus traversing the circumference and length of the housing; at least two ports, each communicating with the channel and an outer surface of the housing; and an attachment for securely attaching each end of the annulus to a laser housing member. 3 figs.

  12. Pulsed gas laser

    DOE Patents [OSTI]

    Anderson, Louis W. (Madison, WI); Fitzsimmons, William A. (Madison, WI)

    1978-01-01

    A pulsed gas laser is constituted by Blumlein circuits wherein space metal plates function both as capacitors and transmission lines coupling high frequency oscillations to a gas filled laser tube. The tube itself is formed by spaced metal side walls which function as connections to the electrodes to provide for a high frequency, high voltage discharge in the tube to cause the gas to lase. Also shown is a spark gap switch having structural features permitting a long life.

  13. Dark Soliton Fiber Laser

    E-Print Network [OSTI]

    H. Zhang; D. Y. Tang; L. M. Zhao; X. Wu; Q. L. Bao; K. P. Loh

    2009-05-08

    We report on the experimental observation of stable dark solitons in an all normal dispersion fiber laser. We found experimentally that dark soliton formation is a generic feature of the fiber laser under strong continuous wave (CW) emission. However, only under appropriate pump strength and negative cavity feedback, stable single or multiple dark soliton could be achieved. Furthermore, we show that the features of the observed dark solitons could be well understood based on the nonlinear Schrodinger equation (NLSE).

  14. Insulator for laser housing

    DOE Patents [OSTI]

    Duncan, David B. (Auburn, CA)

    1992-01-01

    The present invention provides a heat-resistant electrical insulator adapted for joining laser housing portions, which insulator comprises: an annulus; a channel in the annulus traversing the circumference and length of the housing; at least two ports, each communicating with the channel and an outer surface of the housing; and an attachment for securely attaching each end of the annulus to a laser housing member.

  15. Variable laser attenuator

    DOE Patents [OSTI]

    Foltyn, S.R.

    1987-05-29

    The disclosure relates to low loss, high power variable attenuators comprising one or more transmissive and/or reflective multilayer dielectric filters. The attenuator is particularly suitable to use with unpolarized lasers such as excimer lasers. Beam attenuation is a function of beam polarization and the angle of incidence between the beam and the filter and is controlled by adjusting the angle of incidence the beam makes to the filter or filters. Filters are selected in accordance with beam wavelength. 9 figs.

  16. Energy technology review, July--August 1991

    SciTech Connect (OSTI)

    Johnson, K.C. (ed.)

    1991-01-01

    This issue of Energy Technology Review'' gives the annual review of the programs at Lawrence Livermore National Laboratory. This State of the Laboratory issue includes discussions of all major programs: Defense Systems; Laser Research; Magnetic Fusion Energy; Energy and Earth Sciences; Environmental Technology Program; Biomedical and Environmental Science; Engineering; Physics; Chemistry and Materials Science; Computations; and Administrative and Institutional Services. An index is also given of the 1991 achievements with contact names and telephone number.

  17. Development of a Fiber Laser Welding Capability for the W76, MC4702 Firing Set

    SciTech Connect (OSTI)

    Samayoa, Jose

    2010-05-12

    Development work to implement a new welding system for a Firing Set is presented. The new system is significant because it represents the first use of fiber laser welding technology at the KCP. The work used Six-Sigma tools for weld characterization and to define process performance. Determinations of workable weld parameters and comparison to existing equipment were completed. Replication of existing waveforms was done utilizing an Arbitrary Pulse Generator (APG), which was used to modulate the fiber laser’s exclusive continuous wave (CW) output. Fiber laser weld process capability for a Firing Set is demonstrated.

  18. Tunable dye laser amplifier chain for laser isotope separation

    SciTech Connect (OSTI)

    Grigoriev, Igor' S; D'yachkov, Aleksei B; Labozin, Valerii P; Mironov, Sergei M; Nikulin, Sergei A; Firsov, Valerii A

    2004-05-31

    A tunable dye laser amplifier chain developed for experiments on atomic vapour laser isotope separation (AVLIS) is described. The system, pumped by copper vapour lasers, consists of a master oscillator and an amplifier stage including a preamplifier and three main amplifiers working in the saturation mode. The master oscillator of the stage is a dye laser with a grazing incidence diffraction grating. Longitudinal pumping of the amplifiers is used. The efficiency of the main amplifiers is 50 % - 55 %. The average power of laser radiation at the output of the last amplifier is 100 W. (lasers. amplifiers)

  19. TEC Working Group Topic Groups Archives Protocols

    Broader source: Energy.gov [DOE]

    The Transportation Protocols Topic Group serves as an important vehicle for DOE senior managers to assess and incorporate stakeholder input into the protocols process. The Topic Group was formed to review a series of transportation protocols developed in response to a request for DOE to be more consistent in its approach to transportation.

  20. ULTRAFAST RADIATION HEAT TRANSFER IN LASER TISSUE WELDING AND SOLDERING

    E-Print Network [OSTI]

    Guo, Zhixiong "James"

    , respectively. 1. INTRODUCTION The study of short-pulsed laser radiation transport and ultrafast matter­ radiation interactions is of great scientific and technological significance and is attracting increasing­9], to name a few. Due to the very short time duration of the radia- tion­matter interaction and transport

  1. 538 Copyright SLACK inCorporAted Patterned Laser Trabeculoplasty

    E-Print Network [OSTI]

    Palanker, Daniel

    -mail: palanker@stanford.edu doi: 10.3928/15428877-20100910-02 INTRODUCTION The clinical management of glaucoma, and advances in pharmaceutical, surgical, and laser technology. Medi- care claims data show that the number population.1 One of the major problems with pharmaceutical c l i n i c a l s c i e n c e #12;ophth

  2. High Impact Technology Catalyst: Technology Deployment Strategies...

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

    High Impact Technology Catalyst: Technology Deployment Strategies High Impact Technology Catalyst: Technology Deployment Strategies The Energy Department released the High Impact...

  3. Vehicle Technologies Office: 2014 Electric Drive Technologies...

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

    Vehicle Technologies Office: 2014 Electric Drive Technologies Annual Progress Report Vehicle Technologies Office: 2014 Electric Drive Technologies Annual Progress Report The...

  4. Physics of laser fusion. Volume IV. The future development of high-power solid-state laser systems

    SciTech Connect (OSTI)

    Emmett, J.L.; Krupke, W.F.; Trenholme, J.B.

    1982-11-01

    Solid state lasers, particularly neodymium glass systems, have undergone intensive development during the last decade. In this paper, we review solid state laser technology in the context of high-peak-power systems for inertial confinement fusion. Specifically addressed are five major factors: efficiency, wavelength flexibility, average power, system complexity, and cost; these factors today limit broader application of the technology. We conclude that each of these factors can be greatly improved within current fundamental physical limits. We further conclude that the systematic development of new solid state laser madia, both vitreous and crystalline, should ultimately permit the development of wavelength-flexible, very high average power systems with overall efficiencies in the range of 10 to 20%.

  5. Laser damage creates backdoors in quantum communications

    E-Print Network [OSTI]

    Vadim Makarov; Jean-Philippe Bourgoin; Poompong Chaiwongkhot; Mathieu Gagne; Thomas Jennewein; Sarah Kaiser; Raman Kashyap; Matthieu Legre; Carter Minshull; Shihan Sajeed

    2015-10-12

    Quantum communication protocols such as quantum cloud computing, digital signatures, coin-tossing, secret-sharing, and key distribution, using similar optical technologies, claim to provide unconditional security guaranteed by quantum mechanics. Among these protocols, the security of quantum key distribution (QKD) is most scrutinized and believed to be guaranteed as long as implemented devices are properly characterized and existing implementation loopholes are identified and patched. Here we show that this assumption is not true. We experimentally demonstrate a class of attacks based on laser damage, capable of creating new security loopholes on-demand. We perform it on two different implementations of QKD and coin-tossing protocols, and create new information leakage side-channels. Our results show that quantum communication protocols cannot guarantee security alone, but will always have to be supported by additional technical countermeasures against laser damage.

  6. Energy and technology review

    SciTech Connect (OSTI)

    Stowers, I.F.; Crawford, R.B.; Esser, M.A.; Lien, P.L.; O'Neal, E.; Van Dyke, P.

    1982-07-01

    The state of the laboratory address by LLNL Director Roger Batzel is summarized, and a breakdown of the laboratory funding is given. The Livermore defense-related committment is described, including the design and development of advanced nuclear weapons as well as research in inertial confinement fusion, nonnuclear ordnance, and particle beam technology. LLNL is also applying its scientific and engineering resources to the dual challenge of meeting future energy needs without degrading the quality of the biosphere. Some representative examples are given of the supporting groups vital for providing the specialized expertise and new technologies required by the laboratory's major research programs. (GHT)

  7. Technology '90

    SciTech Connect (OSTI)

    Not Available

    1991-01-01

    The US Department of Energy (DOE) laboratories have a long history of excellence in performing research and development in a number of areas, including the basic sciences, applied-energy technology, and weapons-related technology. Although technology transfer has always been an element of DOE and laboratory activities, it has received increasing emphasis in recent years as US industrial competitiveness has eroded and efforts have increased to better utilize the research and development resources the laboratories provide. This document, Technology '90, is the latest in a series that is intended to communicate some of the many opportunities available for US industry and universities to work with the DOE and its laboratories in the vital activity of improving technology transfer to meet national needs. Technology '90 is divided into three sections: Overview, Technologies, and Laboratories. The Overview section describes the activities and accomplishments of the DOE research and development program offices. The Technologies section provides descriptions of new technologies developed at the DOE laboratories. The Laboratories section presents information on the missions, programs, and facilities of each laboratory, along with a name and telephone number of a technology transfer contact for additional information. Separate papers were prepared for appropriate sections of this report.

  8. Injection-controlled laser resonator

    DOE Patents [OSTI]

    Chang, J.J.

    1995-07-18

    A new injection-controlled laser resonator incorporates self-filtering and self-imaging characteristics with an efficient injection scheme. A low-divergence laser signal is injected into the resonator, which enables the injection signal to be converted to the desired resonator modes before the main laser pulse starts. This injection technique and resonator design enable the laser cavity to improve the quality of the injection signal through self-filtering before the main laser pulse starts. The self-imaging property of the present resonator reduces the cavity induced diffraction effects and, in turn, improves the laser beam quality. 5 figs.

  9. Blue-green upconversion laser

    DOE Patents [OSTI]

    Nguyen, Dinh C. (Los Alamos, NM); Faulkner, George E. (Los Alamos, NM)

    1990-01-01

    A blue-green laser (450-550 nm) uses a host crystal doped with Tm.sup.3+. The Tm.sup.+ is excited through upconversion by a red pumping laser and an IR pumping laser to a state which transitions to a relatively lower energy level through emissions in the blue-green band, e.g., 450.20 nm at 75 K. The exciting laser may be tunable dye lasers or may be solid-state semiconductor laser, e.g., GaAlAs and InGaAlP.

  10. Blue-green upconversion laser

    DOE Patents [OSTI]

    Nguyen, D.C.; Faulkner, G.E.

    1990-08-14

    A blue-green laser (450--550 nm) uses a host crystal doped with Tm[sup 3+]. The Tm[sup 3+] is excited through upconversion by a red pumping laser and an IR pumping laser to a state which transitions to a relatively lower energy level through emissions in the blue-green band, e.g., 450.20 nm at 75 K. The exciting laser may be tunable dye lasers or may be solid-state semiconductor laser, e.g., GaAlAs and InGaAlP. 3 figs.

  11. Variable emissivity laser thermal control system

    DOE Patents [OSTI]

    Milner, Joseph R. (Livermore, CA)

    1994-01-01

    A laser thermal control system for a metal vapor laser maintains the wall mperature of the laser at a desired level by changing the effective emissivity of the water cooling jacket. This capability increases the overall efficiency of the laser.

  12. TMV Technology Capabilities Brake Stroke Monitor

    E-Print Network [OSTI]

    TMV Technology Capabilities Brake Stroke Monitor Brake monitoring systems are proactive maintenance This technology allows for CMV operators to have knowledge of their steer, drive, and tandem axle group weights setup is required. Current Safety/Enforcement Technologies EOBR (electronic on-board recorder) On

  13. INFORMATION TECHNOLOGY SERVICES CRM Agent Training

    E-Print Network [OSTI]

    McQuade, D. Tyler

    INFORMATION TECHNOLOGY SERVICES CRM Agent Training Creating a Case Service Management Deployment Request. An agent can change the INFORMATION TECHNOLOGY SERVICES #12;3 type to reflect the type of case of the provider group field. INFORMATION TECHNOLOGY SERVICES #12;4 Selecting the magnifying glass will open

  14. Controlling molecules with lasers and lasers with molecules

    E-Print Network [OSTI]

    Taylor, Jason Matthew, 1977-

    2007-01-01

    I investigate quantum control of spin in molecules using shaped ultrafast lasers and the dynamics of those lasers when their cavities are modified to include programmable molecular masks. The ability to control quantum ...

  15. Role of dispersion in pulse emission from a sliding-frequency fiber laser

    SciTech Connect (OSTI)

    Romagnoli, M.; Wabnitz, S.; Franco, P.; Midrio, M.

    1995-05-01

    We present an experimental and theoretical investigation of the role of group-velocity dispersion in the generation of picosecond pulses from a sliding-frequency fiber loop laser.

  16. A CW normal-conductive RF gun for free electron laser and energy recovery linac applications

    E-Print Network [OSTI]

    Baptiste, Kenneth

    2009-01-01

    Todd, State-of-the art electron guns and injector de- signs,7] Summary of working group on guns and injectors, 41st Ad-A CW normal-conductive RF gun for free electron laser and

  17. Limits of survivability and damage for optical components used in a high repetition rate visible laser

    SciTech Connect (OSTI)

    Taylor, J.R.; Stolz, C.J.; Sarginson, T.G.

    1991-10-01

    An effort is being made to understand the limits of survivability and damage for optical components exposed to a visible laser operating continuously at a high repetition rate over 4 kHz. Results of this work are reported and related to the materials and manufacturing conditions for coatings and substrates as well as defects seen at the surface under laser illumination. These results were obtained for a variety of optical coatings and conditions using lasers from the Laser Demonstration Facility, part of the Atomic Vapor Laser Isotope Separation (AVLIS) Program at LLNL. Better understanding of the reliability of optical components in this environment could lead to improvements in design and manufacture that would result in reduced size for the laser optical system and correspondingly lower costs for the facilities that can use this technology.

  18. Technology Assessment

    Office of Environmental Management (EM)

    capabilities that are energy efficient, low environmental impact 72 and lower cost and that are employed to manufacture technologies and products for clean energy 73...

  19. TEC Working Group Topic Groups Manual Review

    Broader source: Energy.gov [DOE]

    This group is responsible for the update of DOE Manual 460.2-1, Radioactive Material Transportation Practices Manual.  This manual was issued on September 23, 2002, and establishes a set of...

  20. 2006 Nature Publishing Group Vol 439|9 February 2006

    E-Print Network [OSTI]

    Dietz, Hendrik

    kilometres. The device may qualify as the longest laser ever built. MATHEMATICAL BIOLOGY Naturebynumbers Bot that the optimal arrangement of leaves or petals in a plant (phyllotaxis) is related to the Fibonacci series. They inserted chemical groups that can be crosslinked at selected locations in a protein, and used

  1. TEC Working Group Topic Groups Archives Consolidated Grant Topic Group

    Broader source: Energy.gov [DOE]

    The Consolidated Grant Topic Group arose from recommendations provided by the TEC and other external parties to the DOE Senior Executive Transportation Forum in July 1998. It was proposed that the consolidation of multiple funding streams from numerous DOE sources into a single grant would provide a more equitable and efficient means of assistance to States and Tribes affected by DOE nuclear material shipments.

  2. Antenna coupled photonic wire lasers

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

    Reno, John L.; Kao, Tsung-Kao; Cai, Xiaowei; Lee, Alan W. M.; Hu, Qing

    2015-06-22

    Slope efficiency (SE) is an important performance metric for lasers. In conventional semiconductor lasers, SE can be optimized by careful designs of the facet (or the modulation for DFB lasers) dimension and surface. However, photonic wire lasers intrinsically suffer low SE due to their deep sub-wavelength emitting facets. Inspired by microwave engineering techniques, we show a novel method to extract power from wire lasers using monolithically integrated antennas. These integrated antennas significantly increase the effective radiation area, and consequently enhance the power extraction efficiency. When applied to wire lasers at THz frequency, we achieved the highest single-side slope efficiency (~450more »mW/A) in pulsed mode for DFB lasers at 4 THz and a ~4x increase in output power at 3 THz compared with a similar structure without antennas. This work demonstrates the versatility of incorporating microwave engineering techniques into laser designs, enabling significant performance enhancements.« less

  3. Hybrid laser with CMOS photonics

    E-Print Network [OSTI]

    Chong, Johanna S

    2014-01-01

    In this thesis, an interesting approach for a photonic laser source is presented. By using integrated photonic resonators with an external gain medium, we are able to build a laser that offers a number of advantages including ...

  4. Energy-Saving Melting and Revert Reduction Technology (E-SMARRT): Use of Laser Engineered Net Shaping for Rapid Manufacturing of Dies with Protective Coatings and Improved Thermal Management

    SciTech Connect (OSTI)

    Brevick, Jerald R.

    2014-06-13

    In the high pressure die casting process, molten metal is introduced into a die cavity at high pressure and velocity, enabling castings of thin wall section and complex geometry to be obtained. Traditional die materials have been hot work die steels, commonly H13. Manufacture of the dies involves machining the desired geometry from monolithic blocks of annealed tool steel, heat treating to desired hardness and toughness, and final machining, grinding and polishing. The die is fabricated with internal water cooling passages created by drilling. These materials and fabrication methods have been used for many years, however, there are limitations. Tool steels have relatively low thermal conductivity, and as a result, it takes time to remove the heat from the tool steel via the drilled internal water cooling passages. Furthermore, the low thermal conductivity generates large thermal gradients at the die cavity surfaces, which ultimately leads to thermal fatigue cracking on the surfaces of the die steel. The high die surface temperatures also promote the metallurgical bonding of the aluminum casting alloy to the surface of the die steel (soldering). In terms of process efficiency, these tooling limitations reduce the number of die castings that can be made per unit time by increasing cycle time required for cooling, and increasing downtime and cost to replace tooling which has failed either by soldering or by thermal fatigue cracking (heat checking). The objective of this research was to evaluate the feasibility of designing, fabricating, and testing high pressure die casting tooling having properties equivalent to H13 on the surface in contact with molten casting alloy - for high temperature and high velocity molten metal erosion resistance – but with the ability to conduct heat rapidly to interior water cooling passages. A layered bimetallic tool design was selected, and the design evaluated for thermal and mechanical performance via finite element analysis. H13 was retained as the exterior layer of the tooling, while commercially pure copper was chosen for the interior structure of the tooling. The tooling was fabricated by traditional machining of the copper substrate, and H13 powder was deposited on the copper via the Laser Engineered Net Shape (LENSTM) process. The H13 deposition layer was then final machined by traditional methods. Two tooling components were designed and fabricated; a thermal fatigue test specimen, and a core for a commercial aluminum high pressure die casting tool. The bimetallic thermal fatigue specimen demonstrated promising performance during testing, and the test results were used to improve the design and LENS TM deposition methods for subsequent manufacture of the commercial core. Results of the thermal finite element analysis for the thermal fatigue test specimen indicate that it has the ability to lose heat to the internal water cooling passages, and to external spray cooling, significantly faster than a monolithic H13 thermal fatigue sample. The commercial core is currently in the final stages of fabrication, and will be evaluated in an actual production environment at Shiloh Die casting. In this research, the feasibility of designing and fabricating copper/H13 bimetallic die casting tooling via LENS TM processing, for the purpose of improving die casting process efficiency, is demonstrated.

  5. Technology Commercialization Showcase 2008 Vehicle Technologies Program

    SciTech Connect (OSTI)

    Davis, Patrick B.

    2009-06-19

    Presentation illustrating various technology commercialization opportunities and unexploited investment gaps for the Vehicle Technologies Program.

  6. Resonance ionization laser ion sources for on-line isotope separators (invited)

    SciTech Connect (OSTI)

    Marsh, B. A. [EN Department, CERN, 1211 Geneva (Switzerland)] [EN Department, CERN, 1211 Geneva (Switzerland)

    2014-02-15

    A Resonance Ionization Laser Ion Source (RILIS) is today considered an essential component of the majority of Isotope Separator On Line (ISOL) facilities; there are seven laser ion sources currently operational at ISOL facilities worldwide and several more are under development. The ionization mechanism is a highly element selective multi-step resonance photo-absorption process that requires a specifically tailored laser configuration for each chemical element. For some isotopes, isomer selective ionization may even be achieved by exploiting the differences in hyperfine structures of an atomic transition for different nuclear spin states. For many radioactive ion beam experiments, laser resonance ionization is the only means of achieving an acceptable level of beam purity without compromising isotope yield. Furthermore, by performing element selection at the location of the ion source, the propagation of unwanted radioactivity downstream of the target assembly is reduced. Whilst advances in laser technology have improved the performance and reliability of laser ion sources and broadened the range of suitable commercially available laser systems, many recent developments have focused rather on the laser/atom interaction region in the quest for increased selectivity and/or improved spectral resolution. Much of the progress in this area has been achieved by decoupling the laser ionization from competing ionization processes through the use of a laser/atom interaction region that is physically separated from the target chamber. A new application of gas catcher laser ion source technology promises to expand the capabilities of projectile fragmentation facilities through the conversion of otherwise discarded reaction fragments into high-purity low-energy ion beams. A summary of recent RILIS developments and the current status of laser ion sources worldwide is presented.

  7. Solar Pumped Laser Microthruster

    SciTech Connect (OSTI)

    Rubenchik, A. M.; Beach, R.; Dawson, J.; Siders, C. W.

    2010-10-08

    The development of microsatellites requires the development of engines to modify their orbit. It is natural to use solar energy to drive such engines. For an unlimited energy source the optimal thruster must use a minimal amount of expendable material to minimize launch costs. This requires the ejected material to have the maximal velocity and, hence, the ejected atoms must be as light as possible and be ejected by as high an energy density source as possible. Such a propulsion can be induced by pulses from an ultra-short laser. The ultra-short laser provides the high-energy concentration and high-ejected velocity. We suggest a microthruster system comprised of an inflatable solar concentrator, a solar panel, and a diode-pumped fiber laser. We will describe the system design and give weight estimates.

  8. Laser isotope separation

    DOE Patents [OSTI]

    Robinson, C. Paul (Los Alamos, NM); Jensen, Reed J. (Los Alamos, NM); Cotter, Theodore P. (Munich, DE); Boyer, Keith (Los Alamos, NM); Greiner, Norman R. (Los Alamos, NM)

    1988-01-01

    A process and apparatus for separating isotopes by selective excitation of isotopic species of a volatile compound by tuned laser light. A highly cooled gas of the volatile compound is produced in which the isotopic shift is sharpened and defined. Before substantial condensation occurs, the cooled gas is irradiated with laser light precisely tuned to a desired wavelength to selectively excite a particular isotopic species in the cooled gas. The laser light may impart sufficient energy to the excited species to cause it to undergo photolysis, photochemical reaction or even to photoionize. Alternatively, a two-photon irradiation may be applied to the cooled gas to induce photolysis, photochemical reaction or photoionization. The process is particularly applicable to the separation of isotopes of uranium.

  9. Omega Laser Facility - Laboratory for Laser Energetics

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfateSciTechtail.Theory of rare Kaonforsupernovae model (JournalHearingsHuman CapitalOmega Laser

  10. Thermally activated technologies: Technology Roadmap

    SciTech Connect (OSTI)

    None, None

    2003-05-01

    The purpose of this Technology Roadmap is to outline a set of actions for government and industry to develop thermally activated technologies for converting America’s wasted heat resources into a reservoir of pollution-free energy for electric power, heating, cooling, refrigeration, and humidity control. Fuel flexibility is important. The actions also cover thermally activated technologies that use fossil fuels, biomass, and ultimately hydrogen, along with waste heat.

  11. sustainable technologies

    E-Print Network [OSTI]

    Zhang, Junshan

    : · realize continuous improvements in performance (efficiency), cost and manufacturability of PV technologies, transformative PV technologies that circumvent cost/performance trade-offs and maintain compatibility with P the growing demand for energy. Photovoltaics (PV) leverages one of the 20th century's greatest scientific

  12. 1999 Summer Research Program for High School Juniors at the University of Rochester's Laboratory for Laser Energetics

    SciTech Connect (OSTI)

    None

    2002-10-09

    oak-B202--During the summer of 1999, 12 students from Rochester-area high schools participated in the Laboratory for Laser Energetics' Summer High School Research Program. The goal of this program is to excite a group of high school students about careers in the areas of science and technology by exposing them to research in a state-of-the-art environment. Too often, students are exposed to ''research'' only through classroom laboratories that have prescribed procedures and predictable results. In LLE's summer program, the students experience all of the trials, tribulations, and rewards of scientific research. By participating in research in a real environment, the students often become more enthusiastic about careers in science and technology. In addition, LLE gains from the contributions of the many highly talented students who are attracted to the program. The students spent most of their time working on their individual research projects with members of LLE's technical staff. The projects were related to current research activities at LLE and covered a broad range of areas of interest including laser modeling, diagnostic development, chemistry, liquid crystal devices, and opacity data visualization. The students, their high schools, their LLE supervisors and their project titles are listed in the table. Their written reports are collected in this volume. The students attended weekly seminars on technical topics associated with LLE's research. Topics this year included lasers, fusion, holography, optical materials, global warming, measurement errors, and scientific ethics. The students also received safety training, learned how to give scientific presentations, and were introduced to LLE's resources, especially the computational facilities. The program culminated with the High School Student Summer Research Symposium on 25 August at which the students presented the results of their research to an audience that included parents, teachers, and members of LIX. Each student spoke for approximately ten minutes and answered questions.

  13. Laser pulse stacking method

    DOE Patents [OSTI]

    Moses, E.I.

    1992-12-01

    A laser pulse stacking method is disclosed. A problem with the prior art has been the generation of a series of laser beam pulses where the outer and inner regions of the beams are generated so as to form radially non-synchronous pulses. Such pulses thus have a non-uniform cross-sectional area with respect to the outer and inner edges of the pulses. The present invention provides a solution by combining the temporally non-uniform pulses in a stacking effect to thus provide a more uniform temporal synchronism over the beam diameter. 2 figs.

  14. Laser plasma accelerators

    SciTech Connect (OSTI)

    Malka, V. [Laboratoire d'Optique Appliquee, ENSTA-ParisTech, CNRS, Ecole Polytechnique, UMR 7639, 91761 Palaiseau (France)

    2012-05-15

    This review article highlights the tremendous evolution of the research on laser plasma accelerators which has, in record time, led to the production of high quality electron beams at the GeV level, using compact laser systems. I will describe the path we followed to explore different injection schemes and I will present the most significant breakthrough which allowed us to generate stable, high peak current and high quality electron beams, with control of the charge, of the relative energy spread and of the electron energy.

  15. Laser amplifier chain

    DOE Patents [OSTI]

    Hackel, R.P.

    1992-10-20

    A laser amplifier chain has a plurality of laser amplifiers arranged in a chain to sequentially amplify a low-power signal beam to produce a significantly higher-power output beam. Overall efficiency of such a chain is improved if high-gain, low efficiency amplifiers are placed on the upstream side of the chain where only a very small fraction of the total pumped power is received by the chain and low-gain, high-efficiency amplifiers are placed on the downstream side where a majority of pumping energy is received by the chain. 6 figs.

  16. Laser amplifier chain

    DOE Patents [OSTI]

    Hackel, Richard P. (Livermore, CA)

    1992-01-01

    A laser amplifier chain has a plurality of laser amplifiers arranged in a chain to sequentially amplify a low-power signal beam to produce a significantly higher-power output beam. Overall efficiency of such a chain is improved if high-gain, low efficiency amplifiers are placed on the upstream side of the chain where only a very small fraction of the total pumped power is received by the chain and low-gain, high-efficiency amplifiers are placed on the downstream side where a majority of pumping energy is received by the chain.

  17. Normal Conducting CLIC Technology

    E-Print Network [OSTI]

    Jensen, E

    2006-01-01

    The CLIC (Compact Linear Collider) multi-lateral study group based at CERN is studying the technology for an electron-positron linear collider with a centre-of-mass energy up to 5 TeV. In contrast to the International Linear Collider (ILC) study which has chosen to use super-conducting cavities with accelerating gradients in the range of 30-40 MV/m to obtain centre-of-mass collision energies of 0.5-1 TeV, the CLIC study aims to use a normal-conducting system based on two-beam technology with gradients of 150 MV/m. It is generally accepted that this change in technology is not only necessary but the only viable choice for a cost-effective multi-TeV collider. The CLIC study group is studying the technology issues of such a machine, and is in particular developing state-of-the-art 30 GHz molybdenum-iris accelerating structures and power extraction and transfer structures (PETS). The accelerating structure has a new geometry which includes fully-profiled RF surfaces optimised to minimize surface fields, and hybri...

  18. Laser-Induced Breakdown Spectroscopy

    E-Print Network [OSTI]

    Nizkorodov, Sergey

    LIBS-1 Laser-Induced Breakdown Spectroscopy LIBS ANALYSIS OF METAL SURFACES Last updated: June 17, 2014 #12;LIBS-2 Laser­Induced Breakdown Spectroscopy (LIBS) LIBS ANALYSIS OF METAL SURFACES of species at a distance or in hard­to­reach or hazardous environments. Laser­Induced Breakdown Spectroscopy

  19. Laser acceleration of ion beams

    E-Print Network [OSTI]

    I. A. Egorova; A. V. Filatov; A. V. Prozorkevich; S. A. Smolyansky; D. B. Blaschke; M. Chubaryan

    2007-02-01

    We consider methods of charged particle acceleration by means of high-intensity lasers. As an application we discuss a laser booster for heavy ion beams provided, e.g. by the Dubna nuclotron. Simple estimates show that a cascade of crossed laser beams would be necessary to provide additional acceleration to gold ions of the order of GeV/nucleon.

  20. Single element laser beam shaper

    DOE Patents [OSTI]

    Zhang, Shukui (Yorktown, VA); Michelle D. Shinn (Newport News, VA)

    2005-09-13

    A single lens laser beam shaper for converting laser beams from any spatial profile to a flat-top or uniform spatial profile. The laser beam shaper includes a lens having two aspheric surfaces. The beam shaper significantly simplifies the overall structure in comparison with conventional 2-element systems and therefore provides great ease in alignment and reduction of cost.

  1. Tritium Focus Group- INEL

    Broader source: Energy.gov [DOE]

    Presentation from the 34th Tritium Focus Group Meeting held in Idaho Falls, Idaho on September 23-25, 2014.

  2. Displacement Correction Scheme for MR-Guided Interstitial Laser Therapy

    E-Print Network [OSTI]

    van Vliet, Lucas J.

    Displacement Correction Scheme for MR-Guided Interstitial Laser Therapy S. Suprijanto1 , M.W. Vogel[1,3]. In the absence of motion, MR thermometry based on phase imaging is quite accurate[12 , F.M. Vos1 , H.A. Vrooman2,3 , and A.M. Vossepoel1 1 Pattern Recognition Group, Department

  3. RESEARCH GROUP MANUFACTURING

    E-Print Network [OSTI]

    Psarrakos, Panayiotis

    RESEARCH GROUP MANUFACTURING ADDITIVE www.lboro.ac.uk/amrg PhD Studentships in Additive by the Additive Manufacturing Research Group is based around a family of processes comprising of adding layers Additive Manufacturing Research Group in the Wolfson School of Mechanical & Manufacturing Engineering

  4. Exascale Hardware Architectures Working Group

    SciTech Connect (OSTI)

    Hemmert, S; Ang, J; Chiang, P; Carnes, B; Doerfler, D; Leininger, M; Dosanjh, S; Fields, P; Koch, K; Laros, J; Noe, J; Quinn, T; Torrellas, J; Vetter, J; Wampler, C; White, A

    2011-03-15

    The ASC Exascale Hardware Architecture working group is challenged to provide input on the following areas impacting the future use and usability of potential exascale computer systems: processor, memory, and interconnect architectures, as well as the power and resilience of these systems. Going forward, there are many challenging issues that will need to be addressed. First, power constraints in processor technologies will lead to steady increases in parallelism within a socket. Additionally, all cores may not be fully independent nor fully general purpose. Second, there is a clear trend toward less balanced machines, in terms of compute capability compared to memory and interconnect performance. In order to mitigate the memory issues, memory technologies will introduce 3D stacking, eventually moving on-socket and likely on-die, providing greatly increased bandwidth but unfortunately also likely providing smaller memory capacity per core. Off-socket memory, possibly in the form of non-volatile memory, will create a complex memory hierarchy. Third, communication energy will dominate the energy required to compute, such that interconnect power and bandwidth will have a significant impact. All of the above changes are driven by the need for greatly increased energy efficiency, as current technology will prove unsuitable for exascale, due to unsustainable power requirements of such a system. These changes will have the most significant impact on programming models and algorithms, but they will be felt across all layers of the machine. There is clear need to engage all ASC working groups in planning for how to deal with technological changes of this magnitude. The primary function of the Hardware Architecture Working Group is to facilitate codesign with hardware vendors to ensure future exascale platforms are capable of efficiently supporting the ASC applications, which in turn need to meet the mission needs of the NNSA Stockpile Stewardship Program. This issue is relatively immediate, as there is only a small window of opportunity to influence hardware design for 2018 machines. Given the short timeline a firm co-design methodology with vendors is of prime importance.

  5. Novel spherical hohlraum with cylindrical laser entrance holes and shields

    SciTech Connect (OSTI)

    Lan, Ke [Institute of Applied Physics and Computational Mathematics, Beijing 100088 (China); Center for Applied Physics and Technology, Peking University, Beijing 100871 (China); Zheng, Wudi [Institute of Applied Physics and Computational Mathematics, Beijing 100088 (China)

    2014-09-15

    Our recent works [K. Lan et al., Phys. Plasmas 21, 010704 (2014); K. Lan et al., Phys. Plasmas 21, 052704 (2014)] have shown that the octahedral spherical hohlraums are superior to the cylindrical hohlraums in both higher symmetry during the capsule implosion and lower backscatter without supplementary technology. However, both the coupling efficiency from the drive laser energy to the capsule and the capsule symmetry decrease remarkably when larger laser entrance holes (LEHs) are used. In addition, the laser beams injected at angles?>?45° transport close to the hohlraum wall, thus the wall blowoff causes the LEH to close faster and results in strong laser plasma interactions inside the spherical hohlraums. In this letter, we propose a novel octahedral hohlraum with LEH shields and cylindrical LEHs to alleviate these problems. From our theoretical study, with the LEH shields, the laser coupling efficiency is significantly increased and the capsule symmetry is remarkably improved in the spherical hohlraums. The cylindrical LEHs take advantage of the cylindrical hohlraum near the LEH and mitigate the influence of the blowoff on laser transport inside a spherical hohlraum. The cylindrical LEHs can also be applied to the rugby and elliptical hohlraums.

  6. Octahedral spherical hohlraum and its laser arrangement for inertial fusion

    SciTech Connect (OSTI)

    Lan, Ke; He, Xian-Tu; Liu, Jie [Institute of Applied Physics and Computational Mathematics, Beijing 100088 (China); Center for Applied Physics and Technology, Peking University, Beijing 100871 (China); Zheng, Wudi; Lai, Dongxian [Institute of Applied Physics and Computational Mathematics, Beijing 100088 (China)

    2014-05-15

    A recent publication [K. Lan et al., Phys. Plasmas 21, 010704 (2014)] proposed a spherical hohlraum with six laser entrance holes of octahedral symmetry at a specific hohlraum-to-capsule radius ratio of 5.14 for inertial fusion study, which has robust high symmetry during the capsule implosion and superiority on low backscatter without supplementary technology. This paper extends the previous one by studying the laser arrangement and constraints of octahedral hohlraum in detail. As a result, it has serious beam crossing at ?{sub L}?45°, and ?{sub L}=50° to 60° is proposed as the optimum candidate range for the golden octahedral hohlraum, here ?{sub L} is the opening angle that the laser quad beam makes with the Laser Entrance Hole (LEH) normal direction. In addition, the design of the LEH azimuthal angle should avoid laser spot overlapping on hohlraum wall and laser beam transferring outside hohlraum from a neighbor LEH. The octahedral hohlraums are flexible and can be applicable to diverse inertial fusion drive approaches. This paper also applies the octahedral hohlraum to the recent proposed hybrid indirect-direct drive approach.

  7. Survey of Laser Markets Relevant to Inertial Fusion Energy Drivers, information for National Research Council

    SciTech Connect (OSTI)

    Bayramian, A J; Deri, R J; Erlandson, A C

    2011-02-24

    Development of a new technology for commercial application can be significantly accelerated by leveraging related technologies used in other markets. Synergies across multiple application domains attract research and development (R and D) talent - widening the innovation pipeline - and increases the market demand in common components and subsystems to provide performance improvements and cost reductions. For these reasons, driver development plans for inertial fusion energy (IFE) should consider the non-fusion technology base that can be lveraged for application to IFE. At this time, two laser driver technologies are being proposed for IFE: solid-state lasers (SSLs) and KrF gas (excimer) lasers. This document provides a brief survey of organizations actively engaged in these technologies. This is intended to facilitate comparison of the opportunities for leveraging the larger technical community for IFE laser driver development. They have included tables that summarize the commercial organizations selling solid-state and KrF lasers, and a brief summary of organizations actively engaged in R and D on these technologies.

  8. Laser Programs, the first 25 years, 1972-1997

    SciTech Connect (OSTI)

    Campbell, E.M.

    1998-03-04

    Welcome to Laser Programs. I am pleased that you can share in the excitement of 25 years of history since we began as a small program of 125 people to our current status as a world premier laser and applied science research team of over 1700 members. It is fitting that this program, which was founded on the dream of developing inertial confinement fusion technology, should celebrate this anniversary the same year that the ground is broken for the National Ignition Facility (NIF). Also at the same time, we are feeling the excitement of moving forward the Atomic Vapor Laser Isotope Separation (AVLIS) technology toward private sector use and developing many alternate scientific applications and technologies derived from our core programs. It is through the hard work of many dedicated scientists, engineers, technicians, and administrative team members that we have been able to accomplish the remarkable internationally recognized achievements highlighted here. I hope this brochure will help you enjoy the opportunity to share in the celebration and pride of our scientific accomplishments; state-of-the-art facilities; and diligent, dedicated people that together make our Laser Programs and Lawrence Livermore National Laboratory the best in the world.

  9. Fabrication of nanogradient coatings for laser devices using the method of magnetron sputtering

    SciTech Connect (OSTI)

    Abramov, N F; Volpyan, O D; Obod, Yu A [Open Joint-Stock Company M.F. Stel'makh Polyus Research Institute, Moscow (Russian Federation); Dronskii, R V ['Fotron-Auto' Scientific Manufacture Enterprise, Moscow (Russian Federation)

    2013-09-30

    Significant advantages of the magnetron sputtering method for producing complex high-quality optical coatings for laser devices are shown. Technology aspects of efficient fabrication of such coatings are considered. The capabilities of the developed automated technological and control equipment are described. (nanogradient dielectric coatings and metamaterials)

  10. Goddard technologists are working on laser instrumentation that will characterize the Martian atmosphere and improve

    E-Print Network [OSTI]

    Christian, Eric

    , detectors, and other components needed to build a completesystem. Laser/Lidar Technologies for Exploration atmosphere and improve landing safety on Mars and other solar system bodies. First Nano Device to Fly Systems Research and Technology Funds Two Goddard researchers have received funding from

  11. Technology Help Desk 412 624-HELP [4357

    E-Print Network [OSTI]

    Benos, Panayiotis "Takis"

    , command buttons have been placed in a Group within the Ribbon. The Dialog Box Launcher in a group shows 624-HELP [4357] is available 24 hours a day, seven days a week to answer your technology- related on the Dialog Box Launcher, located in the Font group. 3. The Font window will appear that contains additional

  12. Environmental Research Group 2015 Spring Seminar Series

    E-Print Network [OSTI]

    :00 Estimating the Environmental Impacts of New Technologies Using Agent-Based Modeling Shelie Miller CenterEnvironmental Research Group 2015 Spring Seminar Series April 17, 2015 Gregg 320, 12:00 ­ 1 changes to a design will have the greatest influence on environmental performance at this crucial stage

  13. The Wireless Networking and Communications Group

    E-Print Network [OSTI]

    Heath Jr., - Robert W.

    The Wireless Networking and Communications Group Impact of Spatial Correlation and Distributed Antennas for Massive MIMO Systems Kien T.Truong* and Robert W. Heath Jr. Wireless Networking://www.profheath.org ! * MIMO Wireless Inc. This work was supported by Huawei Technologies #12;2 What is Massive MIMO? A very

  14. Laser-Material Interactions: A Study of Laser Energy Coupling with Solids

    E-Print Network [OSTI]

    Shannon, M.A.

    2009-01-01

    1971) Effects of High-Power Laser Radiation, Academic Presin Effects of High-Power Laser Radiation, (Academic Press,for modeling gas discharge lasers", Boulder, Colo. : Univ.

  15. GaAs-based self-aligned laser incorporating InGaP opto-electronic confinement layer

    E-Print Network [OSTI]

    be well suited for exploitation of long wavelength quantum dot and dilute nitride technology, resulting in single lateral mode emission from an In0.17Ga0.83As double quantum well laser. Introduction: Lasers based on the GaAs materials system offer advan- tages over their InP counterparts, such as the use

  16. Responder Technology Alert Monthly (January 2015)

    SciTech Connect (OSTI)

    Upton, Jaki F.; Stein, Steven L.

    2015-02-01

    As part of technology foraging for the Responder Technology Alliance, established by the Department of Homeland Science and Technologies First Responders Group, this report summarizes technologies that are relevant in the area of “wearables,” with the potential for use by first responders. The content was collected over the previous month(s) and reproduced from a general Internet search using the term wearables. Additional information is available at the websites provided. This report is not meant to be an exhaustive list nor an endorsement of any technology described herein. Rather, it is meant to provide useful information about current developments in the areas wearable technology.

  17. Grouped exposed metal heaters

    DOE Patents [OSTI]

    Vinegar, Harold J. (Bellaire, TX); Coit, William George (Bellaire, TX); Griffin, Peter Terry (Brixham, GB); Hamilton, Paul Taylor (Houston, TX); Hsu, Chia-Fu (Granada Hills, CA); Mason, Stanley Leroy (Allen, TX); Samuel, Allan James (Kular Lumpar, ML); Watkins, Ronnie Wade (Cypress, TX)

    2012-07-31

    A system for treating a hydrocarbon containing formation is described. The system includes two or more groups of elongated heaters. The group includes two or more heaters placed in two or more openings in the formation. The heaters in the group are electrically coupled below the surface of the formation. The openings include at least partially uncased wellbores in a hydrocarbon layer of the formation. The groups are electrically configured such that current flow through the formation between at least two groups is inhibited. The heaters are configured to provide heat to the formation.

  18. Grouped exposed metal heaters

    DOE Patents [OSTI]

    Vinegar, Harold J. (Bellaire, TX); Coit, William George (Bellaire, TX); Griffin, Peter Terry (Brixham, GB); Hamilton, Paul Taylor (Houston, TX); Hsu, Chia-Fu (Granada Hills, CA); Mason, Stanley Leroy (Allen, TX); Samuel, Allan James (Kular Lumpar, MY); Watkins, Ronnie Wade (Cypress, TX)

    2010-11-09

    A system for treating a hydrocarbon containing formation is described. The system includes two or more groups of elongated heaters. The group includes two or more heaters placed in two or more openings in the formation. The heaters in the group are electrically coupled below the surface of the formation. The openings include at least partially uncased wellbores in a hydrocarbon layer of the formation. The groups are electrically configured such that current flow through the formation between at least two groups is inhibited. The heaters are configured to provide heat to the formation.

  19. TECHNOLOGY FORUM

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

    Brittmore Group LLC T Cascade Engineering and Patriot Solar U Enabling High-Penetration PV with Smart Inverters N General Electric Global Research Center C National Renewable...

  20. Laser Program annual report 1984

    SciTech Connect (OSTI)

    Rufer, M.L.; Murphy, P.W.

    1985-06-01

    The Laser Program Annual Report is part of the continuing series of reports documenting the progress of the unclassified Laser Fusion Program at the Lawrence Livermore National Laboratory (LLNL). As in previous years, the report is organized programmatically. The first section is an overview of the basic goals and directions of the LLNL Inertial Confinement Fusion (ICF) Program, and highlights the year's important accomplishments. Sections 2 through 7 provide the detailed information on the various program elements: Laser Systems and Operations, Target Design, Target Fabrication, Laser Experiments and Advanced Diagnostics, Advanced Laser Development, and Applications of Inertial Confinement Fusion. Individual sections will be indexed separately. 589 refs., 333 figs., 25 tabs.

  1. Oxazine laser dyes

    DOE Patents [OSTI]

    Hammond, Peter R. (Livermore, CA); Field, George F. (Danville, CA)

    1992-01-01

    New oxazine compounds useful as dye laser media in solution, are superiior to prior art materials. The oxazine dyes useful when pumped by the 578.2 nm copper line to operate in the 700-800 nm range are described by formula I ##STR1##

  2. The understanding, characterization, and implementation of a SICK LMS-291 laser scanner for use in an experimental environment

    E-Print Network [OSTI]

    Berrios, Marcos (Marcos Gabriel)

    2006-01-01

    With technology growing at an alarming rate the need for precise measurement equipment has also intensified. One such device is the SICK Laser Measurement System (LMS). Based on a time-of-flight measurement principle, this ...

  3. 2 micron femtosecond fiber laser

    DOE Patents [OSTI]

    Liu, Jian; Wan, Peng; Yang, Lihmei

    2014-07-29

    Methods and systems for generating femtosecond fiber laser pulses are disclose, including generating a signal laser pulse from a seed laser oscillator; using a first amplifier stage comprising an input and an output, wherein the signal laser pulse is coupled into the input of the first stage amplifier and the output of the first amplifier stage emits an amplified and stretched signal laser pulse; using an amplifier chain comprising an input and an output, wherein the amplified and stretched signal laser pulse from the output of the first amplifier stage is coupled into the input of the amplifier chain and the output of the amplifier chain emits a further amplified, stretched signal laser pulse. Other embodiments are described and claimed.

  4. OCDR guided laser ablation device

    DOE Patents [OSTI]

    Dasilva, Luiz B. (Danville, CA); Colston, Jr., Bill W. (Livermore, CA); James, Dale L. (Tracy, CA)

    2002-01-01

    A guided laser ablation device. The device includes a mulitmode laser ablation fiber that is surrounded by one or more single mode optical fibers that are used to image in the vicinity of the laser ablation area to prevent tissue damage. The laser ablation device is combined with an optical coherence domain reflectometry (OCDR) unit and with a control unit which initializes the OCDR unit and a high power laser of the ablation device. Data from the OCDR unit is analyzed by the control unit and used to control the high power laser. The OCDR images up to about 3 mm ahead of the ablation surface to enable a user to see sensitive tissue such as a nerve or artery before damaging it by the laser.

  5. Fundamental Study on Laser Interaction with Metal Matrix Nanocomposites

    E-Print Network [OSTI]

    Ma, Chao

    2015-01-01

    laser welding and laser additive manufacturing. REFERENCES [Selective Laser Melting Additive Manufacturing of Ti-Basedwelding and laser additive manufacturing where a minimal HAZ

  6. Technology Validation

    Broader source: Energy.gov [DOE]

    To reduce solar technology risks, DOE and its partners evaluate the performance and reliability of novel photovoltaic (PV) hardware and systems through laboratory and field testing. The focus of...

  7. OVERVIEW OF SELECTED SURROGATE TECHNOLOGIES FOR HIGH-TEMPORAL RESOLUTION SUSPENDED-SEDIMENT MONITORING

    E-Print Network [OSTI]

    OVERVIEW OF SELECTED SURROGATE TECHNOLOGIES FOR HIGH- TEMPORAL RESOLUTION SUSPENDED such surrogate technology, and the first to be sanctioned by the U.S. Geological Survey for use in producing data in the National Water Information System. Other technologies, including laser-diffraction, digital photo

  8. Robotics Technology Development Program. Technology summary

    SciTech Connect (OSTI)

    Not Available

    1994-02-01

    The Robotics Technology Development Program (RTDP) is a ``needs-driven`` effort. A lengthy series of presentations and discussions at DOE sites considered critical to DOE`s Environmental Restoration and Waste Management (EM) Programs resulted in a clear understanding of needed robotics applications toward resolving definitive problems at the sites. A detailed analysis of the Tank Waste Retrieval (TWR), Contaminant Analysis Automation (CAA), Mixed Waste Operations (MWO), and Decontamination & Dismantlement (D&D). The RTDP Group realized that much of the technology development was common (Cross Cutting-CC) to each of these robotics application areas, for example, computer control and sensor interface protocols. Further, the OTD approach to the Research, Development, Demonstration, Testing, and Evaluation (RDDT&E) process urged an additional organizational break-out between short-term (1--3 years) and long-term (3--5 years) efforts (Advanced Technology-AT). The RDTP is thus organized around these application areas -- TWR, CAA, MWO, D&D and CC&AT -- with the first four developing short-term applied robotics. An RTDP Five-Year Plan was developed for organizing the Program to meet the needs in these application areas.

  9. Technology Roadmap Analysis 2013: Assessing Automotive Technology...

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

    Technology Roadmap Analysis 2013: Assessing Automotive Technology R&D Relevant to DOE Power Electronics Cost Targets Technology Roadmap Analysis 2013: Assessing Automotive...

  10. Building Technologies Office Overview

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

    Roland Risser Director, Building Technologies Office Building Technologies Office Energy Efficiency Starts Here. 2 Building Technologies Office Integrated Approach: Improving...

  11. Urenco centrifuge and laser development

    SciTech Connect (OSTI)

    Upson, P.C.

    1994-12-31

    The Urenco centrifuge process for the enrichment of uranium is now well developed and economically proven. The centrifuge technology that forms the basis of Urenco`s plants in the United Kingdom, the Netherlands, and Germany has evolved steadily over the last two decades since the Urenco partnership was formed, and current programs of development will see this progress continue into the next century. From the early pilot plant work, the first generation of machines was installed and commissioned in the late 1970s in the U.K. and Netherlands plants. These have both significantly exceeded the original design expectation with respect to both stress lifetime and corrosion resistance. The early U.K. plant was shut down in 1992, again well beyond the expected 10-yr lifetime, while the Netherlands plant is still operating. Since then, significant advances have been made, and a fourth-generation machine began operation in the plants in 1991; in fact, Urenco has all four generations still in operation in its plants today. Urenco`s research on laser isotope separation is also described.

  12. General Laser Control Measures Operating instructions for a specific laser are found in the manual for that laser.

    E-Print Network [OSTI]

    Huennekens, John

    General Laser Control Measures Operating instructions for a specific laser are found in the manual for that laser. There are several procedures that will reduce the potential for exposure to laser beams. 1. The beam from Class IIIB and Class IV lasers should be terminated in highly absorbent, non specular

  13. Optics and Lasers in Engineering 46 (2008) 2733 Entropy generation rate during laser pulse heating: Effect of laser

    E-Print Network [OSTI]

    Al-Qahtani, Hussain M.

    2008-01-01

    Optics and Lasers in Engineering 46 (2008) 27­33 Entropy generation rate during laser pulse heating generation rate attains high values in the early heating period due to large (1/T 2 ). Moreover, the laser reserved. Keywords: Laser; Pulse; Temperature; Entropy generation rate 1. Introduction Laser pulse heating

  14. Pulsed laser Raman spectroscopy in the laser-heated diamond anvil...

    Office of Scientific and Technical Information (OSTI)

    Pulsed laser Raman spectroscopy in the laser-heated diamond anvil cell Citation Details In-Document Search Title: Pulsed laser Raman spectroscopy in the laser-heated diamond anvil...

  15. Electron-Yield Enhancement in a Laser-Wakefield Accelerator Driven by Asymmetric Laser Pulses

    E-Print Network [OSTI]

    Geddes, Cameron Guy Robinson

    Electron-Yield Enhancement in a Laser-Wakefield Accelerator Driven by Asymmetric Laser Pulses W. P accelerator by using nonlinearly chirped laser pulses from a 10 Hz, Ti:Al2O3, CPA based laser system [8

  16. Detector Support Group

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

    browser. Concerns? Hall B Navigation DSG Home Staff Presentations Notes print version Detector Support Group Spotlight Archive Index Rotation test for the SVT detector EPICS...

  17. JLab Users Group

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

    UserResearcher Information print version UG Resources Background & Purpose Users Group Wiki By Laws Board of Directors Board of Directors Minutes Directory of Members Events...

  18. Chaninik Wind Group Wind Heat Smart Grids Final Report

    SciTech Connect (OSTI)

    Meiners, Dennis

    2013-06-29

    Final report summarizes technology used, system design and outcomes for US DoE Tribal Energy Program award to deploy Wind Heat Smart Grids in the Chaninik Wind Group communities in southwest Alaska.

  19. Catalysis Working Group Kick-Off Meeting Agenda

    Broader source: Energy.gov [DOE]

    Agenda for the kick-off meeting of the U.S. Department of Energy Fuel Cell Technologies Program's Catalysis Working Group, held May 14, 2012, in Arlington, Virginia.

  20. The application of Raman laser in gravity measurement and metrology

    SciTech Connect (OSTI)

    Ru, Ning; Zhang, Li; Wang, Yu; Fan, Shangchun

    2014-05-27

    Atom Interferometry is proved to be a potential method for measuring the acceleration of atoms due to Gravity, we are now building a feasible system of cold atom gravimeter, it is based on the atom interferometry technology by coherently manipulating the cold atoms in a fountain (with a height of 1m) with specific Raman lasers, the cold atom wave packet is splitted, combined, and then re-splitted in the process. Then the atomic wave packet will acquire different phase because of the different evolution path. The precise acceleration can be deduced through the precision measurement of atomic interference fringes phase, and this will be a high precision standard of acceleration. At present, the preparation of Raman laser and the precise control of the laser Frequency have been finished, and they have been proved to meet the requirements of the experiment.

  1. ZAP! The X-Ray Laser is Born

    SciTech Connect (OSTI)

    Ratner, Daniel

    2009-11-17

    SLAC has converted its giant particle accelerator into the world's first X-ray laser. By a billion fold the world's brightest X-ray source, the laser packs a trillion photons into pulses as short as a millionth of a billionth of a second. The ultra-bright, ultra-short X-ray pulses will drive a wide range of new experiments, as scientists strip electrons from atoms, photograph single molecules and make movies of chemical reactions. How has SLAC accomplished such feats of X-ray wizardry? Attend this public lecture to learn about the basics of an X-ray laser, the technologies at SLAC that make it possible, and the exciting new experiments now underway.

  2. Laser frequency modulator for modulating a laser cavity

    DOE Patents [OSTI]

    Erbert, Gaylen V. (Livermore, CA)

    1992-01-01

    The present invention relates to a laser frequency modulator for modulating a laser cavity. It is known in the prior art to utilize a PZT (piezoelectric transducer) element in combination with a mirror to change the cavity length of a laser cavity (which changes the laser frequency). Using a PZT element to drive the mirror directly is adequate at frequencies below 10 kHz. However, in high frequency applications (100 kHz and higher) PZT elements alone do not provide a sufficient change in the cavity length. The present invention utilizes an ultrasonic concentrator with a PZT element and mirror to provide modulation of the laser cavity. With an ultrasonic concentrator, the mirror element at the end of a laser cavity can move at larger amplitudes and higher frequencies.

  3. Cooling and Dehumidification HVAC Technology for 1990s

    E-Print Network [OSTI]

    Oak Ridge National Laboratory

    Desiccant Cooling and Dehumidification HVAC Technology for 1990s HVAC: Heating, Ventilation, and Air Conditioning Desiccant Cooling Group Solar Energy Research Institute Golden, Colorado #12;Table of Contents * Background and Fundamentals * SERI Desiccant Research * Status of Desiccant Technology * Future

  4. Review of AVLIS technology for production-scale LIS systems and construction

    SciTech Connect (OSTI)

    Davis, J.I.; Moses, E.I.

    1983-12-01

    The use of lasers for uranium and/or plutonium isotope separation is expected to be the first application of lasers utilizing specific atomic processes for large-scale materials processing. Specific accomplishments toward the development of production-scale technology for LIS systems will be presented, along with the status of major construction projects. 24 figures.

  5. Compact X-ray Free Electron Laser from a Laser-plasma Accelerator...

    Office of Scientific and Technical Information (OSTI)

    Language: English Subject: 43 PARTICLE ACCELERATORS; ACCELERATORS; ELECTRON BEAMS; ELECTRONS; FREE ELECTRON LASERS; LASERS; PERFORMANCE; PLASMA GUNS; RADIATIONS; WIGGLER MAGNETS...

  6. Electric motor for laser-mechanical drilling

    DOE Patents [OSTI]

    Grubb, Daryl L.; Faircloth, Brian O.; Zediker, Mark S.

    2015-07-07

    A high power laser drilling system utilizing an electric motor laser bottom hole assembly. A high power laser beam travels within the electric motor for advancing a borehole. High power laser drilling system includes a down hole electrical motor having a hollow rotor for conveying a high power laser beam through the electrical motor.

  7. Laser MicroChemical Shaping of Silicon

    E-Print Network [OSTI]

    Burns, Michael J.

    Laser MicroChemical Shaping of Silicon MURI Workshop Feb 28, 2005 Michael J. Burns, Ph.D. LMC Product Manager #12;FEI Copyright © 2005 Vectra LMC 9900 2 Laser Micro Chemical (LMC) ·Use of laser light to induce local chemical reactions. ·Both Laser Chemical Etching (LCE) and Laser Chemical Deposition (LCD

  8. Fusion pumped laser

    DOE Patents [OSTI]

    Pappas, Daniel S. (Los Alamos, NM)

    1989-01-01

    Apparatus is provided for generating energy in the form of laser radiation. A tokamak fusion reactor is provided for generating a long, or continuous, pulse of high-energy neutrons. The tokamak design provides a temperature and a magnetic field which is effective to generate a neutron flux of at least 10.sup.15 neutrons/cm.sup.2.s. A conversion medium receives neutrons from the tokamak and converts the high-energy neutrons to an energy source with an intensity and an energy effective to excite a preselected lasing medium. The energy source typically comprises fission fragments, alpha particles, and radiation from a fission event. A lasing medium is provided which is responsive to the energy source to generate a population inversion which is effective to support laser oscillations for generating output radiation.

  9. Laser multiplexing system

    DOE Patents [OSTI]

    Johnson, Steve A. (Tracy, CA); English, Jr., Ronald Edward (Tracy, CA); White, Ronald K. (Livermore, CA)

    2001-01-01

    A plurality of copper lasers, as radiant power sources, emits a beam of power carrying radiation. A plurality of fiber injection assemblies receives power from the plurality of copper lasers and injects such power into a plurality of fibers for individually transmitting the received power to a plurality of power-receiving devices. The power-transmitting fibers of the system are so arranged that power is delivered therethrough to each of the power-receiving devices such that, even if a few of the radiant power sources and/or fibers fail, the power supply to any of the power receiving devices will not completely drop to zero but will drop by the same proportionate amount.

  10. Laser pulse sampler

    DOE Patents [OSTI]

    Vann, C.

    1998-03-24

    The Laser Pulse Sampler (LPS) measures temporal pulse shape without the problems of a streak camera. Unlike the streak camera, the laser pulse directly illuminates a camera in the LPS, i.e., no additional equipment or energy conversions are required. The LPS has several advantages over streak cameras. The dynamic range of the LPS is limited only by the range of its camera, which for a cooled camera can be as high as 16 bits, i.e., 65,536. The LPS costs less because there are fewer components, and those components can be mass produced. The LPS is easier to calibrate and maintain because there is only one energy conversion, i.e., photons to electrons, in the camera. 5 figs.

  11. Laser pulse sampler

    DOE Patents [OSTI]

    Vann, Charles (Fremont, CA)

    1998-01-01

    The Laser Pulse Sampler (LPS) measures temporal pulse shape without the problems of a streak camera. Unlike the streak camera, the laser pulse directly illuminates a camera in the LPS, i.e., no additional equipment or energy conversions are required. The LPS has several advantages over streak cameras. The dynamic range of the LPS is limited only by the range of its camera, which for a cooled camera can be as high as 16 bits, i.e., 65,536. The LPS costs less because there are fewer components, and those components can be mass produced. The LPS is easier to calibrate and maintain because there is only one energy conversion, i.e., photons to electrons, in the camera.

  12. Fusion pumped laser

    DOE Patents [OSTI]

    Pappas, D.S.

    1987-07-31

    The apparatus of this invention may comprise a system for generating laser radiation from a high-energy neutron source. The neutron source is a tokamak fusion reactor generating a long pulse of high-energy neutrons and having a temperature and magnetic field effective to generate a neutron flux of at least 10/sup 15/ neutrons/cm/sup 2//center dot/s. Conversion means are provided adjacent the fusion reactor at a location operable for converting the high-energy neutrons to an energy source with an intensity and energy effective to excite a preselected lasing medium. A lasing medium is spaced about and responsive to the energy source to generate a population inversion effective to support laser oscillations for generating output radiation. 2 figs., 2 tabs.

  13. High Rate Laser Pitting Technique for Solar Cell Texturing

    SciTech Connect (OSTI)

    Hans J. Herfurth; Henrikki Pantsar

    2013-01-10

    High rate laser pitting technique for solar cell texturing Efficiency of crystalline silicon solar cells can be improved by creating a texture on the surface to increase optical absorption. Different techniques have been developed for texturing, with the current state-of-the-art (SOA) being wet chemical etching. The process has poor optical performance, produces surfaces that are difficult to passivate or contact and is relatively expensive due to the use of hazardous chemicals. This project shall develop an alternative process for texturing mc-Si using laser micromachining. It will have the following features compared to the current SOA texturing process: -Superior optical surfaces for reduced front-surface reflection and enhanced optical absorption in thin mc-Si substrates -Improved surface passivation -More easily integrated into advanced back-contact cell concepts -Reduced use of hazardous chemicals and waste treatment -Similar or lower cost The process is based on laser pitting. The objective is to develop and demonstrate a high rate laser pitting process which will exceed the rate of former laser texturing processes by a factor of ten. The laser and scanning technologies will be demonstrated on a laboratory scale, but will use inherently technologies that can easily be scaled to production rates. The drastic increase in process velocity is required for the process to be implemented as an in-line process in PV manufacturing. The project includes laser process development, development of advanced optical systems for beam manipulation and cell reflectivity and efficiency testing. An improvement of over 0.5% absolute in efficiency is anticipated after laser-based texturing. The surface textures will be characterized optically, and solar cells will be fabricated with the new laser texturing to ensure that the new process is compatible with high-efficiency cell processing. The result will be demonstration of a prototype process that is suitable for scale-up to a production tool and process. The developed technique will have an reducing impact on product pricing. As efficiency has a substantial impact on the economics of solar cell production due to the high material cost content; in essence, improved efficiency through cost-effective texturing reduces the material cost component since the product is priced in terms of $/W. The project is a collaboration between Fraunhofer USA, Inc. and a c-Si PV manufacturer.

  14. Laser fusion neutron source employing compression with short pulse lasers

    DOE Patents [OSTI]

    Sefcik, Joseph A; Wilks, Scott C

    2013-11-05

    A method and system for achieving fusion is provided. The method includes providing laser source that generates a laser beam and a target that includes a capsule embedded in the target and filled with DT gas. The laser beam is directed at the target. The laser beam helps create an electron beam within the target. The electron beam heats the capsule, the DT gas, and the area surrounding the capsule. At a certain point equilibrium is reached. At the equilibrium point, the capsule implodes and generates enough pressure on the DT gas to ignite the DT gas and fuse the DT gas nuclei.

  15. Mechanical Engineering & Thermal Group

    E-Print Network [OSTI]

    Mojzsis, Stephen J.

    LASP's mechanical analysts also lead mechanical verification testing including: random vibration, forceMechanical Engineering & Thermal Group The Mechanical Engineering (ME) & Thermal Group at LASP has, and ground- based mechanical systems. Instrument Design Building on decades of design experience that has

  16. OHVT Technology Roadmap

    SciTech Connect (OSTI)

    Bradley, R.A.

    2001-10-22

    The U.S. Department of Energy (DOE) Office of Heavy Vehicle Technologies (OHVT) was created in March 1996 to address the public-interest transportation-energy aspects of a set of customers who at that time had been largely unrecognized, namely, the manufacturers, suppliers, and users of heavy transport vehicles (trucks, buses, rail, and inland marine). Previously, the DOE had focused its attention on meeting the needs of the personal-transport-vehicle customer (automobile manufacturers, suppliers, and users). Those of us who were of driving age at the time of the 1973 oil embargo and the 1979 oil price escalation vividly recall the inconvenience and irritation of having to wait in long lines for gasoline to fuel our cars. However, most of us, other than professional truck owners or drivers, were unaware of the impacts that these disruptions in the fuel supply had on those whose livelihoods depend upon the transport of goods. Recognizing the importance of heavy vehicles to the national economic health, the DOE created OHVT with a mission to conduct, in collaboration with its industry partners and their suppliers, a customer-focused national program to research and develop technologies that will enable trucks and other heavy vehicles to be more energy-efficient and able to use alternative fuels while reducing emissions. The Office of Heavy Vehicle Technologies convened a workshop in April 1996 to elicit input from DOE's heavy vehicle industry customers, including truck and bus manufacturers, diesel-engine manufacturers, fuel producers, suppliers to these industries, and the trucking industry. The preparation of a ''technology roadmap'' was one of the key recommendations by this customer group. Therefore, the OHVT Technology Roadmap* was developed in 1996 as a first step in crafting a common vision for a government research and development (R and D) partnership in this increasingly important transportation sector. The approach used in developing the OHVT Technology Roadmap was to: formulate goals consistent with the U.S. Department of Energy Strategic Plan required by the Government Performance and Results Act (GPRA), assess the status of the technology, identify technical targets, identify barriers to achieving the technical targets, develop an approach to overcoming the barriers, and develop schedules and milestones. This structure was followed for three groups of truck classification: Class 7 and 8: large, on-highway trucks; Class 3-6: medium-duty trucks such as delivery vans; and Class 1 and 2: pickups, vans, and sport utility vehicles (SUVs).

  17. BESTIA - the next generation ultra-fast CO2 laser for advanced accelerator research

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

    Pogorelsky, Igor V.; Babzien, Markus; Ben-Zvi, Ilan; Skaritka, John; Polyanskiy, Mikhail N.

    2015-12-02

    Over the last two decades, BNL’s ATF has pioneered the use of high-peak power CO2 lasers for research in advanced accelerators and radiation sources. In addition, our recent developments in ion acceleration, Compton scattering, and IFELs have further underscored the benefits from expanding the landscape of strong-field laser interactions deeper into the mid-infrared (MIR) range of wavelengths. This extension validates our ongoing efforts in advancing CO2 laser technology, which we report here. Our next-generation, multi-terawatt, femtosecond CO2 laser will open new opportunities for studying ultra-relativistic laser interactions with plasma in the MIR spectral domain, including new regimes in the particlemore »acceleration of ions and electrons.« less

  18. TEC Working Group Topic Groups Archives Protocols Meeting Summaries...

    Office of Environmental Management (EM)

    Working Group Topic Groups Archives Protocols Meeting Summaries Meeting Summaries Philadelphia TEC Meeting, Protocols Topic Group Summary - July 1999 Jacksonville TEC Meeting,...

  19. SLAC All Access: Laser Labs

    ScienceCinema (OSTI)

    Minitti, Mike; Woods Mike

    2014-06-03

    From supermarket checkouts to video game consoles, lasers are ubiquitous in our lives. Here at SLAC, high-power lasers are critical to the cutting-edge research conducted at the laboratory. But, despite what you might imagine, SLAC's research lasers bear little resemblance to the blasters and phasers of science fiction. In this edition of All Access we put on our safety goggles for a peek at what goes on inside some of SLAC's many laser labs. LCLS staff scientist Mike Minitti and SLAC laser safety officer Mike Woods detail how these lasers are used to study the behavior of subatomic particles, broaden our understanding of cosmic rays and even unlock the mysteries of photosynthesis.

  20. NIST Update: On-going research projects from a highly productive group

    E-Print Network [OSTI]

    Sources Group Expertise · Reference Material Characterization · Standard Information Resource Development Funding Sources · National Institute of Justice (Forensic DNA) · FBI Science & Technology Branch (DNA National Institute of Standards and Technology Gaithersburg, Maryland CAC Fall Meeting (Sacramento, CA

  1. A study of the applicability of Group Technology 

    E-Print Network [OSTI]

    McMahon, James David

    1971-01-01

    production. Job shop production is a means of manufacturing small lots of components and has been marked by excessive costs, excessive waste of machine and manpower utilization, excessive delays in customer service, and, there- fore, excessive customer... dissatisfaction. The causes of these problems are such things as: dispersion of machinery in the plant, knockdown and setup times between machined parts, specialized work tasks for the laborers, and complicated information handling systems. During the past...

  2. Spring next year (2007) the Membrane Technology Group (Membranes &

    E-Print Network [OSTI]

    Twente, Universiteit

    2007-01-01

    plates showed high num- ber of active nozzles at relative low applied pressure differences (60 the geometry the wetting proper- ties are an important factor. For oil-in-wa- ter emulsification a hydrophilic surface is needed whereas for water-in-oil a hydro- phobic surface is required. For the later one

  3. Physics Division, LANL: Neutron Science and Technology Group

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

    including supernova remnants, pulsar wind nebulae, active galactic nuclei, and gamma-ray bursts. The Weak Interactions team develops experiments to answer questions about the...

  4. Optimal Control Dr. Gabriele De Chiara (Quantum Technology Group)

    E-Print Network [OSTI]

    Paxton, Anthony T.

    of liquid that has to be moved from A to B in the shortest time possible. One strategy is to go at constant. Moreover, there is the danger to spill it during the process. Another strategy is to accelerate first in an energy potential which is moved from A to B. Aims The aim of the project is the study of optimal control

  5. Platinum Group Metal Recycling Technology Development - Final Report

    SciTech Connect (OSTI)

    Lawrence Shore

    2009-08-19

    BASF Catalysts LLC, formerly Engelhard Corporation, has completed a project to recover Pt from PEM fuel cell membrane electrode assemblies. The project, which began in 2003, has met the project objective of an environmentally-friendly, cost-effective method for recovery of platinum without release of hydrogen fluoride. This has been achieved using a combination of milling, dispersion and acid leaching. 99% recovery of Pt was achieved, and this high yield can be scaled up using one vessel for a single leach and rinse. Leaching was been successfully achieved using a 10% solids level, double the original target. At this solids content, the reagent and utility costs represent ~0.35% of the Pt value of a lot, using very conservative assumptions. The main cost of the process is capital depreciation, followed by labor.

  6. Preliminary Notice of Violation,Parsons Infrastructure & Technology Group,

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i nAandSummary AreasDepartment of Energy 898-09 | Department of Energy

  7. Parsons Infrastructure & Technology Group, Inc., Consent Order | Department

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i nAandSummary Areas ofEnergy On October 13,is aof Energy Office of

  8. State Grid and Shenzhen Energy Group Biomass Engineering Technology

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page| Open Energy Information Serbia-Enhancing CapacityVectren) Jumpand Maintenance Geothermal Project | OpenState

  9. Department of Energy Cites Parsons Infrastructure & Technology Group, Inc.

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergy A plug-in electricLaboratory |Education at U.S.Development PlansandHealth

  10. Nicholas J. Wright! Advanced Technologies Group Lead NERSC Initiative:

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass map shinesSolarNew scholarshipThreeFebruary 2015 ESH&SCSU - EnergyNi Ni:Photo

  11. China Electronics Technology Group Corporation CETC | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LISTStar Energy LLCLtd Jump to:Changing WorldCalifornia:Dialogue Jump

  12. PNNL Technology Planning and Deployment Group | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop Inc Jump to:Newberg,Energy LLC Jump to: navigation,GridWise (Redirected from

  13. PNNL Technology Planning and Deployment Group | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop Inc Jump to:Newberg,Energy LLC Jump to: navigation,GridWise (Redirected

  14. PNNL Technology Systems Analysis Group | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop Inc Jump to:Newberg,Energy LLC Jump to: navigation,GridWise (Redirected(Redirected

  15. Process Technology Group of Warwick School of Engineering | Open Energy

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop Inc Jump to:Newberg,Energy LLC JumpPhonoSolar

  16. 48th Research Institute of China Electronics Technology Group Corporation |

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EAand Dalton Jump to:Wylie,InformationSpeciesRegister2008§6901Inc.Open

  17. Enforcement Letter, Parsons Infrastructure & Technology Group INC, - July

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i n cEnergyNatural GasDepartment

  18. China Technology Development Group Corporation | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmentalBowerbank,CammackFLIR JumpMaine:WestTexas: EnergyExport PartnersCorporation Jump

  19. China Titans Energy Technology Group Co Ltd | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmentalBowerbank,CammackFLIR JumpMaine:WestTexas: EnergyExport PartnersCorporation

  20. PNNL Technology Systems Analysis Group | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsourceII JumpQuarterly Smart GridNorth Carolina: Energy ResourcesLLC Jump

  1. Parsons Infrastructure & Technology Group, Inc., Consent Order

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematicsEnergyInterested PartiesBuilding energy codes havePUBLICof EnergyParagon Sales:

  2. ITP Aluminum: Technical Working Group on Inert Anode Technologies

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematicsEnergy HeadquartersFuelBConservation Standards and TestEquipment: EnergyITC Filing

  3. Information Technology Advisory Group (iTAG) | The Ames Laboratory

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverseIMPACT EVALUATION PLAN FOR THEVorticesInformation Resources3 Committees

  4. ITP Aluminum: Technical Working Group on Inert Anode Technologies |

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirley Ann JacksonDepartment ofOffice ofofWindUpcomingcanGridDoesHydrogen ishow softDepartment of

  5. Consent Order, Parsons Infrastructure & Technology Group, Inc. -

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergy A plug-in electric vehicle (PEV)Day-June 22,FresnoSky)Nuclear8 Issued toEnergy

  6. Science & Technology - 2015

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

    January NIF Fuel Gain Named a "Top Breakthrough" of 2014 First Laser-Compton X Rays Produced LLNL's laser-Compton light source system has produced its first x-ray light, at about...

  7. Science & Technology - 2014

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

    Petawatt Laser Project Takes Shape at LLNL July Using Lasers to Improve Welding Efficiency NIF&PS Researchers Win Two R&D 100 Awards June First Isotope-Specific...

  8. Laser Atmospheric Studies with VERITAS

    E-Print Network [OSTI]

    C. M. Hui; for the VERITAS collaboration

    2007-09-25

    As a calibrated laser pulse propagates through the atmosphere, the amount of Rayleigh-scattered light arriving at the VERITAS telescopes can be calculated precisely. This technique was originally developed for the absolute calibration of ultra-high-energy cosmic-ray fluorescence telescopes but is also applicable to imaging atmospheric Cherenkov telescopes (IACTs). In this paper, we present two nights of laser data taken with the laser at various distances away from the VERITAS telescopes and compare it to Rayleigh scattering simulations.

  9. Hybrid fiber-rod laser

    DOE Patents [OSTI]

    Beach, Raymond J.; Dawson, Jay W.; Messerly, Michael J.; Barty, Christopher P. J.

    2012-12-18

    Single, or near single transverse mode waveguide definition is produced using a single homogeneous medium to transport both the pump excitation light and generated laser light. By properly configuring the pump deposition and resulting thermal power generation in the waveguide device, a thermal focusing power is established that supports perturbation-stable guided wave propagation of an appropriately configured single or near single transverse mode laser beam and/or laser pulse.

  10. Materials Science & Technology, MST: Los Alamos National Laboratory

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

    for new technologies and specialized hardware; and Providing user-based materials characterization capabilities. MST Groups overview Metallurgy (MST-6) foamvoids Polymers...

  11. Resources for Information on New and Emerging Technologies

    Broader source: Energy.gov [DOE]

    Presentation covers resources for new and emerging technologies and is given at the Spring 2011 Federal Utility Partnership Working Group (FUPWG) meeting.

  12. Fusion Nuclear Science and Technology Program - Status and plans...

    Office of Environmental Management (EM)

    plans for tritium research Fusion Nuclear Science and Technology Program - Status and plans for tritium research Presentation from the 35th Tritium Focus Group Meeting held in...

  13. Distributed Hydrogen Fueling Station Based on GEGR SCPO Technology...

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

    Fueling Station Based on GEGR SCPO Technology (Presentation) Presented at the 2007 Bio-Derived Liquids to Hydrogen Distributed Reforming Working Group held November 6, 2007 in...

  14. Isotope Enrichment Detection by Laser Ablation - Laser Absorption Spectrometry: Automated Environmental Sampling and Laser-Based Analysis for HEU Detection

    SciTech Connect (OSTI)

    Anheier, Norman C.; Bushaw, Bruce A.

    2010-01-01

    The global expansion of nuclear power, and consequently the uranium enrichment industry, requires the development of new safeguards technology to mitigate proliferation risks. Current enrichment monitoring instruments exist that provide only yes/no detection of highly enriched uranium (HEU) production. More accurate accountancy measurements are typically restricted to gamma-ray and weight measurements taken in cylinder storage yards. Analysis of environmental and cylinder content samples have much higher effectiveness, but this approach requires onsite sampling, shipping, and time-consuming laboratory analysis and reporting. Given that large modern gaseous centrifuge enrichment plants (GCEPs) can quickly produce a significant quantity (SQ ) of HEU, these limitations in verification suggest the need for more timely detection of potential facility misuse. The Pacific Northwest National Laboratory (PNNL) is developing an unattended safeguards instrument concept, combining continuous aerosol particulate collection with uranium isotope assay, to provide timely analysis of enrichment levels within low enriched uranium facilities. This approach is based on laser vaporization of aerosol particulate samples, followed by wavelength tuned laser diode spectroscopy to characterize the uranium isotopic ratio through subtle differences in atomic absorption wavelengths. Environmental sampling (ES) media from an integrated aerosol collector is introduced into a small, reduced pressure chamber, where a focused pulsed laser vaporizes material from a 10 to 20-µm diameter spot of the surface of the sampling media. The plume of ejected material begins as high-temperature plasma that yields ions and atoms, as well as molecules and molecular ions. We concentrate on the plume of atomic vapor that remains after the plasma has expanded and then cooled by the surrounding cover gas. Tunable diode lasers are directed through this plume and each isotope is detected by monitoring absorbance signals on a shot-to-shot basis. The media is translated by a micron resolution scanning system, allowing the isotope analysis to cover the entire sample surface. We also report, to the best of our knowledge, the first demonstration of laser-based isotopic measurements on individual micron-sized particles that are minor target components in a much larger heterogeneous mix of ‘background’ particles. This composition is consistent with swipe and environmental aerosol samples typically collected for safeguards ES purposes. Single-shot detection sensitivity approaching the femtogram range and relative isotope abundance uncertainty better than 10% has been demonstrated using gadolinium isotopes as surrogate materials.

  15. Single-exciton nanocrystal laser

    DOE Patents [OSTI]

    Klimov, Victor I. (Los Alamos, NM); Ivanov, Sergei A. (Albuquerque, NM)

    2012-01-17

    A laser system employing amplification via a single exciton regime and to optical gain media having single exciton amplification is provided.

  16. Laser-Based Nondestructive Testing

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

    Research Projects Laser-Based Nondestructive Testing High speed, non-contact NDT for bridging the gap between traditional nondestructive testing and embedded structural health...

  17. Uranium molecular laser isotope separation

    SciTech Connect (OSTI)

    Jensen, R.J.; Sullivan, A.

    1982-01-01

    The Molecular Laser Isotope Separation program is moving into the engineering phase, and it is possible to determine in some detail the plant cost terms involved in the process economics. A brief description of the MLIS process physics is given as a motivation to the engineering and economics discussion. Much of the plant cost arises from lasers and the overall optical system. In the paper, the authors discuss lasers as operating units and systems, along with temporal multiplexing and Raman shifting. Estimates of plant laser costs are given.

  18. Methodology to manage process technology innovation

    E-Print Network [OSTI]

    Schweizer, Daniel

    2010-01-01

    The research conducted for this thesis was performed at "Company X", a U.S.-based engineered goods manufacturer. This project focused on the company's Advanced Manufacturing group and its process technology development ...

  19. Engineering &Technology

    E-Print Network [OSTI]

    Southampton, University of

    Software Technologies Deloitte Dialog Semiconductor ECM Selection EDT-Year in Industry EMC Corporation to join our organisation and be based in our Ferndown, Dorset, location within our product electronics have application, design and manufacturing facilities in Canada, America, Europe and China. We

  20. Manufacturing technologies

    SciTech Connect (OSTI)

    1995-09-01

    The Manufacturing Technologies Center is an integral part of Sandia National Laboratories, a multiprogram engineering and science laboratory, operated for the Department of Energy (DOE) with major facilities at Albuquerque, New Mexico, and Livermore, California. Our Center is at the core of Sandia`s Advanced Manufacturing effort which spans the entire product realization process.

  1. Pyroprocessing Technologies

    E-Print Network [OSTI]

    Kemner, Ken

    of pyrochemical processes for the recycle of oxide, carbide and other advanced fuels and laid the foundationPyroprocessing Technologies RECYCLING USED NUCLEAR FUEL FOR A SUSTAINABLE ENERGY FUTURE #12;32 Storing Used Nuclear Fuel is a Real Waste Nuclear power is the most environmentally friendly way

  2. Building Technologies Office Overview

    SciTech Connect (OSTI)

    2013-04-01

    Building Technologies Office Overview Presentation for the 2013 Building Technologies Office's Program Peer Review

  3. Final Report: Laser-Material Interactions Relevant to Analytic Spectroscopy of Wide Band Gap Materials

    SciTech Connect (OSTI)

    Dickinson, J. T.

    2014-04-05

    We summarize our studies aimed at developing an understanding of the underlying physics and chemistry in terms of laser materials interactions relevant to laser-based sampling and chemical analysis of wide bandgap materials. This work focused on the determination of mechanisms for the emission of electrons, ions, atoms, and molecules from laser irradiation of surfaces. We determined the important role of defects on these emissions, the thermal, chemical, and physical interactions responsible for matrix effects and mass-dependent transport/detection. This work supported development of new techniques and technology for the determination of trace elements contained such as nuclear waste materials.

  4. Fully-automatic laser welding and micro-sculpting with universal in situ inline coherent imaging

    E-Print Network [OSTI]

    Webster, Paul J L; Ji, Yang; Galbraith, Christopher M; Kinross, Alison W; Van Vlack, Cole; Fraser, James M

    2014-01-01

    Though new affordable high power laser technologies make possible many processing applications in science and industry, depth control remains a serious technical challenge. Here we show that inline coherent imaging, with line rates up to 312 kHz and microsecond-duration capture times, is capable of directly measuring laser penetration depth in a process as violent as kW-class keyhole welding. We exploit ICI's high speed, high dynamic range and robustness to interference from other optical sources to achieve fully automatic, adaptive control of laser welding as well as ablation, achieving micron-scale sculpting in vastly different heterogeneous biological materials.

  5. Femtosecond laser-assisted lamellar keratoplasty

    E-Print Network [OSTI]

    Soong, Hunson Kaz; Malta, João Baptista Nigro Santiago; Mian, Shahzad Ihsan; Juhasz, Tibor

    2008-01-01

    601-6 606 Femtosecond laser-assisted lamellar keratoplastyRN, Suarez C, Juhasz T, Kurtz R. Femtose- cond laser flapcreation for laser in situ keratomileusis: six-month follow-

  6. Atomic vapor laser isotope separation process

    DOE Patents [OSTI]

    Wyeth, R.W.; Paisner, J.A.; Story, T.

    1990-08-21

    A laser spectroscopy system is utilized in an atomic vapor laser isotope separation process. The system determines spectral components of an atomic vapor utilizing a laser heterodyne technique. 23 figs.

  7. Single mode pulsed dye laser oscillator

    DOE Patents [OSTI]

    Hackel, Richard P. (Livermore, CA)

    1992-01-01

    A single mode pulsed dye laser oscillator is disclosed. The dye laser oscillator provides for improved power efficiency by reducing the physical dimensions of the overall laser cavity, which improves frequency selection capability.

  8. Laser beam alignment apparatus and method

    DOE Patents [OSTI]

    Gruhn, Charles R. (Martinez, CA); Hammond, Robert B. (Los Alamos, NM)

    1981-01-01

    The disclosure relates to an apparatus and method for laser beam alignment. Thermoelectric properties of a disc in a laser beam path are used to provide an indication of beam alignment and/or automatic laser alignment.

  9. Normal Conducting CLIC Technology

    SciTech Connect (OSTI)

    Jensen, Erk

    2006-01-03

    The CLIC (Compact Linear Collider) multi-lateral study group based at CERN is studying the technology for an electron-positron linear collider with a centre-of-mass energy up to 5 TeV. In contrast to the International Linear Collider (ILC) study which has chosen to use super-conducting cavities with accelerating gradients in the range of 30-40 MV/m to obtain centre-of-mass collision energies of 0.5-1 TeV, the CLIC study aims to use a normal-conducting system based on two-beam technology with gradients of 150 MV/m. It is generally accepted that this change in technology is not only necessary but the only viable choice for a cost-effective multi-TeV collider. The CLIC study group is studying the technology issues of such a machine, and is in particular developing state-of-the-art 30 GHz molybdenum-iris accelerating structures and power extraction and transfer structures (PETS). The accelerating structure has a new geometry which includes fully-profiled RF surfaces optimised to minimize surface fields, and hybrid damping using both iris slots and radial waveguides. A newly-developed structure-optimisation procedure has been used to simultaneously balance surface fields, power flow, short and long-range transverse wakefields, RF-to-beam efficiency and the ratio of luminosity to input power. The slotted irises allow a simple structure fabrication by high-precision high-speed 3D milling of just four pieces, and an even easier bolted assembly in a vacuum chamber.

  10. Rhodes 801-A Rhodes 801-B Group 1: Group 1

    E-Print Network [OSTI]

    Cahay, Marc

    Marie Group 3: Group 3: Bennett, Christopher Paul Davenport, Austin Lovell Creech, Nathan Alan Colburn Worcester, Austin Thomas Group 8: Group 8: TableATableBTableCTableD TableATableBTableCTableD #12;Rhodes 801

  11. Central extensions of Current Groups and the Jacobi Group 

    E-Print Network [OSTI]

    Docherty, Pamela Jane

    2012-11-28

    A current group GX is an infinite-dimensional Lie group of smooth maps from a smooth manifold X to a finite-dimensional Lie group G, endowed with pointwise multiplication. This thesis concerns current groups G§ for compact ...

  12. Vacuum Technology

    SciTech Connect (OSTI)

    Biltoft, P J

    2004-10-15

    The environmental condition called vacuum is created any time the pressure of a gas is reduced compared to atmospheric pressure. On earth we typically create a vacuum by connecting a pump capable of moving gas to a relatively leak free vessel. Through operation of the gas pump the number of gas molecules per unit volume is decreased within the vessel. As soon as one creates a vacuum natural forces (in this case entropy) work to restore equilibrium pressure; the practical effect of this is that gas molecules attempt to enter the evacuated space by any means possible. It is useful to think of vacuum in terms of a gas at a pressure below atmospheric pressure. In even the best vacuum vessels ever created there are approximately 3,500,000 molecules of gas per cubic meter of volume remaining inside the vessel. The lowest pressure environment known is in interstellar space where there are approximately four molecules of gas per cubic meter. Researchers are currently developing vacuum technology components (pumps, gauges, valves, etc.) using micro electro mechanical systems (MEMS) technology. Miniature vacuum components and systems will open the possibility for significant savings in energy cost and will open the doors to advances in electronics, manufacturing and semiconductor fabrication. In conclusion, an understanding of the basic principles of vacuum technology as presented in this summary is essential for the successful execution of all projects that involve vacuum technology. Using the principles described above, a practitioner of vacuum technology can design a vacuum system that will achieve the project requirements.

  13. Science &Technology Facilities Council

    E-Print Network [OSTI]

    Science &Technology Facilities Council Science &Technology Facilities Council Science and Technology Facilities Council Annual Report and Accounts 2011-2012 Science and Technology Facilities Council Laboratory, Cheshire; UK Astronomy Technology Centre, Edinburgh; Chilbolton Observatory, Hampshire; Isaac

  14. SELECTING INFORMATION TECHNOLOGY SECURITY

    E-Print Network [OSTI]

    April 2004 SELECTING INFORMATION TECHNOLOGY SECURITY PRODUCTS Shirley Radack, Editor Computer Security Division Information Technology Laboratory National Institute of Standards and Technology Information technology security prod ucts are essential to better secure infor mation technology (IT) systems

  15. Copper vapor laser modular packaging assembly

    DOE Patents [OSTI]

    Alger, Terry W. (Tracy, CA); Ault, Earl R. (Dublin, CA); Moses, Edward I. (Castro Valley, CA)

    1992-01-01

    A modularized packaging arrangement for one or more copper vapor lasers and associated equipment is disclosed herein. This arrangement includes a single housing which contains the laser or lasers and all their associated equipment except power, water and neon, and means for bringing power, water, and neon which are necessary to the operation of the lasers into the container for use by the laser or lasers and their associated equipment.

  16. Copper vapor laser modular packaging assembly

    DOE Patents [OSTI]

    Alger, T.W.; Ault, E.R.; Moses, E.I.

    1992-12-01

    A modularized packaging arrangement for one or more copper vapor lasers and associated equipment is disclosed herein. This arrangement includes a single housing which contains the laser or lasers and all their associated equipment except power, water and neon, and means for bringing power, water, and neon which are necessary to the operation of the lasers into the container for use by the laser or lasers and their associated equipment. 2 figs.

  17. Pulsed laser deposition to synthesize the bridge structure of artificial nacre: Comparison of nano- and femtosecond lasers

    SciTech Connect (OSTI)

    Melaibari, Ammar A. [Laboratory for Lasers, MEMS and Nanotechnology, Department of Mechanical Engineering, Iowa State University, Ames, Iowa 50011 (United States); Department of Mechanical Engineering, King AbdulAziz University, Jeddah 21589 (Saudi Arabia); Molian, Pal [Laboratory for Lasers, MEMS and Nanotechnology, Department of Mechanical Engineering, Iowa State University, Ames, Iowa 50011 (United States)

    2012-11-15

    Nature offers inspiration to new adaptive technologies that allow us to build amazing shapes and structures such as nacre using synthetic materials. Consequently, we have designed a pulsed laser ablation manufacturing process involving thin film deposition and micro-machining to create hard/soft layered 'brick-bridge-mortar' nacre of AlMgB{sub 14} (hard phase) with Ti (soft phase). In this paper, we report pulsed laser deposition (PLD) to mimic brick and bridge structures of natural nacre in AlMgB{sub 14}. Particulate formation inherent in PLD is exploited to develop the bridge structure. Mechanical behavior analysis of the AlMgB{sub 14}/Ti system revealed that the brick is to be 250 nm thick, 9 {mu}m lateral dimensions while the bridge (particle) is to have a diameter of 500 nm for a performance equivalent to natural nacre. Both nanosecond (ns) and femtosecond (fs) pulsed lasers were employed for PLD in an iterative approach that involves varying pulse energy, pulse repetition rate, and target-to-substrate distance to achieve the desired brick and bridge characteristics. Scanning electron microscopy, x-ray photoelectron spectroscopy, and optical profilometer were used to evaluate the film thickness, particle size and density, stoichiometry, and surface roughness of thin films. Results indicated that both ns-pulsed and fs-pulsed lasers produce the desired nacre features. However, each laser may be chosen for different reasons: fs-pulsed laser is preferred for much shorter deposition time, better stoichiometry, uniform-sized particles, and uniform film thickness, while ns-pulsed laser is favored for industrial acceptance, reliability, ease of handling, and low cost.

  18. Laser profiling of sewer pipes Laser profiling of sewer pipes

    E-Print Network [OSTI]

    Langendoen, Koen

    Laser profiling of sewer pipes #12;#12;Laser profiling of sewer pipes Analysis of concrete egg shaped sewer pipes Walter van der Schoot for the degree of: Master of Science in Civil Engineering Date there is an extensive and well functioning sewer system. Over the years 111.000 kilometres of sewer pipes were

  19. Accelerator Technology Division progress report, FY 1993

    SciTech Connect (OSTI)

    Schriber, S.O.; Hardekopf, R.A.; Heighway, E.A.

    1993-12-31

    This report discusses the following topics: A Next-Generation Spallation-Neutron Source; Accelerator Performance Demonstration Facility; APEX Free-Electron Laser Project; The Ground Test Accelerator (GTA) Program; Intense Neutron Source for Materials Testing; Linac Physics and Special Projects; Magnetic Optics and Beam Diagnostics; Radio-Frequency Technology; Accelerator Controls and Automation; Very High-Power Microwave Sources and Effects; and GTA Installation, Commissioning, and Operation.

  20. Phase plate technology for laser marking of magnetic discs

    DOE Patents [OSTI]

    Neuman, B.; Honig, J.; Hackel, L.; Dane, C.B.; Dixit, S.

    1998-10-27

    An advanced design for a phase plate enables the distribution of spots in arbitrarily shaped patterns with very high uniformity and with a continuously or near-continuously varying phase pattern. A continuous phase pattern eliminates large phase jumps typically expected in a grating that provides arbitrary shapes. Large phase jumps increase scattered light outside of the desired pattern, reduce efficiency and can make the grating difficult to manufacture. When manufacturing capabilities preclude producing a fully continuous grating, the present design can be easily adapted to minimize manufacturing errors and maintain high efficiencies. This continuous grating is significantly more efficient than previously described Dammann gratings, offers much more flexibility in generating spot patterns and is easier to manufacture and replicate than a multi-level phase grating. 3 figs.

  1. New High-Power Laser Technology | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i nAand DOEDepartment ofProgramImportsEnergyForecastingNew Hampshire.

  2. Group Communication based on Standard Interfaces Matthias Wiesmann

    E-Print Network [OSTI]

    Défago, Xavier

    Group Communication based on Standard Interfaces Matthias Wiesmann matthias.wiesmann@epfl.ch Xavier -- Information & Communication Institute Swiss Federal Institute of Technology in Lausanne (EPFL) Japan Advanced Corporation Abstract While group communication system have been proposed for some time, they are still

  3. Volvo Group Position on Alternative Fuels for Commercial Vehicles

    E-Print Network [OSTI]

    California at Davis, University of

    in Transportation Workshop Volvo Group North America #12;Volvo Group Trucks Technology Compression Ignition LNG / DME Trucks need range and power to deliver Spark Ignition CNG Spark Ignition LNG Not to Scale application using LNG ­ LNG retail price calculated from Henry Hub spot prices ­ No incentive taken

  4. Cost Estimate for Laser Isotope Separation for RIA

    SciTech Connect (OSTI)

    Scheibner, K

    2004-11-01

    Isotope enrichment of some elements is required in support of the Rare Isotope Accelerator (RIA) in order to obtain the beam intensities, source efficiencies and/or source lifetime required by RIA. The economics of using Atomic Vapor Laser Isotope Separation (AVLIS) technology as well as ElectroMagnetic (EM) separation technology has been evaluated. It is concluded that such an AVLIS would be about 10 times less expensive than a facility based on electromagnetic separation - $17 M versus $170 M. In addition, the AVLIS facility footprint would be about 10 times smaller, and operations would require about 4 years (including 2 years of startup) versus about 11 years for an EM facility.

  5. Laser Driven Dynamic Loading of Condensed Matter

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

    Laser Driven Dynamic Loading of Condensed Matter Laser Driven Dynamic Loading of Condensed Matter Advanced diagnostics of experiments covering many orders of magnitude in strain...

  6. Ytterbium-doped borate fluoride laser crystals and lasers

    DOE Patents [OSTI]

    Schaffers, Kathleen I. (Pleasanton, CA); DeLoach, Laura D. (Manteca, CA); Payne, Stephen A. (Castro Valley, CA); Keszler, Douglas A. (Corvallis, OK)

    1997-01-01

    A new class of solid state laser crystals and lasers are formed from Yb-doped borate fluoride host crystals. The general formula for the host crystals is MM'(BO.sub.3)F, where M, M' are monovalent, divalent aria trivalent metal cations. A particular embodiment of the invention is Yb-doped BaCaBO.sub.3 F (Yb:BCBF). BCBF and some of the related derivative crystals are capable of nonlinear frequency conversion, whereby the fundamental of the laser is converted to a longer or shorter wavelength. In this way, these new crystals can simultaneously serve as self-frequency doubling crystals and laser materials within the laser resonator.

  7. Ytterbium-doped borate fluoride laser crystals and lasers

    DOE Patents [OSTI]

    Schaffers, K.I.; DeLoach, L.D.; Payne, S.A.; Keszler, D.A.

    1997-10-14

    A new class of solid state laser crystals and lasers are formed from Yb-doped borate fluoride host crystals. The general formula for the host crystals is MM{prime}(BO{sub 3})F, where M, M{prime} are monovalent, divalent aria trivalent metal cations. A particular embodiment of the invention is Yb-doped BaCaBO{sub 3}F (Yb:BCBF). BCBF and some of the related derivative crystals are capable of nonlinear frequency conversion, whereby the fundamental of the laser is converted to a longer or shorter wavelength. In this way, these new crystals can simultaneously serve as self-frequency doubling crystals and laser materials within the laser resonator. 6 figs.

  8. A Survey of Hadron Therapy Accelerator Technologies.

    SciTech Connect (OSTI)

    PEGGS,S.; SATOGATA, T.; FLANZ, J.

    2007-06-25

    Hadron therapy has entered a new age [1]. The number of facilities grows steadily, and 'consumer' interest is high. Some groups are working on new accelerator technology, while others optimize existing designs by reducing capital and operating costs, and improving performance. This paper surveys the current requirements and directions in accelerator technology for hadron therapy.

  9. Emerging Technology Presentation to NEET Executive Committee

    E-Print Network [OSTI]

    Center, NEEA, NWPCC, WSU Energy Program HVAC TAG AHRI, Arup, BC Hydro, BPA, Davis Energy Group, EWEB" full to meet future energy efficiency needs." Emerging Opportunities MARKETPENETRATION TIME 2 4 NORTHWEST ENERGY EFFICIENCY TECHNOLOGY ROADMAP MARCH 2010 Regional EE Emerging Technology Roadmap

  10. Approaching attometer laser vibrometry

    SciTech Connect (OSTI)

    Rembe, Christian; Kadner, Lisa; Giesen, Moritz

    2014-05-27

    The heterodyne two-beam interferometer has been proven to be the optimal solution for laser-Doppler vibrometry regarding accuracy and signal robustness. The theoretical resolution limit for a two-beam interferometer of laser class 3R (up to 5 mW visible measurement-light) is in the regime of a few femtometer per square-root Hertz and well suited to study vibrations in microstructures. However, some new applications of RF-MEM resonators, nanostructures, and surface-nano-defect detection require resolutions beyond that limit. The resolution depends only on the noise and the sensor sensitivity to specimen displacements. The noise is already defined in nowadays systems by the quantum nature of light for a properly designed optical sensor and more light would lead to an inacceptable influence like heating of a very tiny structure. Thus, noise can only be improved by squeezed-light techniques which require a negligible loss of measurement light which is impossible for almost all technical measurement tasks. Thus, improving the sensitivity is the only possible path which could make attometer laser vibrometry possible. Decreasing the measurement wavelength would increase the sensitivity but would also increase the photon shot noise. In this paper, we discuss an approach to increase the sensitivity by assembling an additional mirror between interferometer and specimen to form an optical cavity. A detailed theoretical analysis of this setup is presented and we derive the resolution limit, discuss the main contributions to the uncertainty budget, and show a first experiment proving the sensitivity amplification of our approach.

  11. Unidirectional ring lasers

    DOE Patents [OSTI]

    Hohimer, J.P.; Craft, D.C.

    1994-09-20

    Unidirectional ring lasers formed by integrating nonreciprocal optical elements into the resonant ring cavity is disclosed. These optical elements either attenuate light traveling in a nonpreferred direction or amplify light traveling in a preferred direction. In one preferred embodiment the resonant cavity takes the form of a circle with an S-shaped crossover waveguide connected to two points on the interior of the cavity such that light traveling in a nonpreferred direction is diverted from the cavity into the crossover waveguide and reinjected out of the other end of the crossover waveguide into the cavity as light traveling in the preferred direction. 21 figs.

  12. Portal Technology

    E-Print Network [OSTI]

    Warner, Beth Forrest

    2002-03-27

    Portal Technology Beth Forrest Warner Director, KU Digital Library Initiatives bwarner@ku.edu PUAD 839 March 27, 2002 Defining the issue… Today’s government agencies at all levels should note that the citizens they serve are “little concerned... their citizens’ perspectives. Instead of launching online services on a department-by-department basis, they are aggregating services across departments, accessible through a common portal.” (Janet Caldow, “The Quest for Electronic Government: A Defining...

  13. Engineering Light: Quantum Cascade Lasers

    ScienceCinema (OSTI)

    Claire Gmachl

    2010-09-01

    Quantum cascade lasers are ideal for environmental sensing and medical diagnostic applications. Gmachl discusses how these lasers work, and their applications, including their use as chemical trace gas sensors. As examples of these applications, she briefly presents results from her field campaign at the Beijing Olympics, and ongoing campaigns in Texas, Maryland, and Ghana.

  14. Laser Direct Drive: Scientific Advances,

    E-Print Network [OSTI]

    target physics: 2. Laser (most costly component) is modular 3. Separate components lower cost · Simpler targets & physics · Predict Fusion Class Gains (> 140) at lower laser energy (500 kJ - 1 MJ) #12 encourage competition. It leads to innovation and a better product. And leads to it faster KrF DPSSL #12

  15. Emerging technologies

    SciTech Connect (OSTI)

    Lu, Shin-yee

    1993-03-01

    The mission of the Emerging Technologies thrust area at Lawrence Livermore National Laboratory is to help individuals establish technology areas that have national and commercial impact, and are outside the scope of the existing thrust areas. We continue to encourage innovative ideas that bring quality results to existing programs. We also take as our mission the encouragement of investment in new technology areas that are important to the economic competitiveness of this nation. In fiscal year 1992, we have focused on nine projects, summarized in this report: (1) Tire, Accident, Handling, and Roadway Safety; (2) EXTRANSYT: An Expert System for Advanced Traffic Management; (3) Odin: A High-Power, Underwater, Acoustic Transmitter for Surveillance Applications; (4) Passive Seismic Reservoir Monitoring: Signal Processing Innovations; (5) Paste Extrudable Explosive Aft Charge for Multi-Stage Munitions; (6) A Continuum Model for Reinforced Concrete at High Pressures and Strain Rates: Interim Report; (7) Benchmarking of the Criticality Evaluation Code COG; (8) Fast Algorithm for Large-Scale Consensus DNA Sequence Assembly; and (9) Using Electrical Heating to Enhance the Extraction of Volatile Organic Compounds from Soil.

  16. Technology disrupted

    SciTech Connect (OSTI)

    Papatheodorou, Y.

    2007-02-15

    Three years ago, the author presented a report on power generation technologies which in summary said 'no technology available today has the potential of becoming transformational or disruptive in the next five to ten years'. In 2006 the company completed another strategic view research report covering the electric power, oil, gas and unconventional energy industries and manufacturing industry. This article summarises the strategic view findings and then revisits some of the scenarios presented in 2003. The cost per megawatt-hour of the alternatives is given for plants ordered in 2005 and then in 2025. The issue of greenhouse gas regulation is dealt with through carbon sequestration and carbon allowances or an equivalent carbon tax. Results reveal substantial variability through nuclear power, hydro, wind, geothermal and biomass remain competitive through every scenario. Greenhouse gas scenario analysis shows coal still be viable, albeit less competitive against nuclear and renewable technologies. A carbon tax or allowance at $24 per metric ton has the same effect on IGCC cost as a sequestration mandate. However, the latter would hurt gas plants much more than a tax or allowance. Sequestering CO{sub 2} from a gas plant is almost as costly per megawatt-hour as for coal. 5 refs., 5 figs., 5 tabs.

  17. RECIPROCAL PASSIVE MODE-LOCKING OF A RHODAMINE 6G DYE LASER AND THE Ar+ PUMP LASER

    E-Print Network [OSTI]

    Yasa, Zafer A.

    2013-01-01

    active mode-locking of the pump laser is eliminated. Second,6G DYE LASER AND THE Ar+ PUMP LASER Zafer A. Vasa and Nabil6G DYE LASER AND THE Ar+ PUMP LASER ABSRACT A rhodamine 6G

  18. Method of fabricating vertically aligned group III-V nanowires

    DOE Patents [OSTI]

    Wang, George T; Li, Qiming

    2014-11-25

    A top-down method of fabricating vertically aligned Group III-V micro- and nanowires uses a two-step etch process that adds a selective anisotropic wet etch after an initial plasma etch to remove the dry etch damage while enabling micro/nanowires with straight and smooth faceted sidewalls and controllable diameters independent of pitch. The method enables the fabrication of nanowire lasers, LEDs, and solar cells.

  19. NATURE PUBLISHING GROUP SITE LICENSES

    E-Print Network [OSTI]

    Cai, Long

    Biotechnology Nature Cell Biology Nature Chemical Biology Nature Chemistry Nature Climate Change Nature of Information Technology Journal of Information Technology Teaching Cases Journal of International Business

  20. Venus Technology Plan Venus Technology Plan

    E-Print Network [OSTI]

    Rathbun, Julie A.

    Venus Technology Plan May 2014 #12; ii Venus Technology Plan At the Venus Exploration Survey priorities, and (3) develop a Technology Plan for future Venus missions (after a Technology Forum at VEXAG Meeting 11 in November 2013). Here, we present the 2014 Venus Technology Plan