Sample records for andre anders plasma

  1. Robert G Andre | Princeton Plasma Physics Lab

    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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -the Mid-Infrared0 Resource Program SeptemberRobert B. Laughlin, 1984G Andre Senior

  2. Time-Dependent Integrated Modeling of Burning Plasmas R. Budny, R. Andre, and C. Kessel (PPPL)

    E-Print Network [OSTI]

    simulations of energy, momentum, and particle flows 4. estimates of alpha ash profile PRINCETON PLASMA PHYSICS. Will need to certify each plasma before it is tried PRINCETON PLASMA PHYSICS LABORATORY PPPL 1 #12;Overview. distributions of the fast alpha and NNBI ions 2. estimates of toroidal rotation and Er profiles 3. gyrokinetic

  3. Time-Dependent Integrated Modeling of Burning Plasmas R. Budny, R. Andre, and C. Kessel (PPPL)

    E-Print Network [OSTI]

    Budny, Robert

    simulations of energy, momentum, and particle flows 4. estimates of alpha ash profile · Introduction. Will need to certify each plasma before it is tried PRINCETON PLASMA PHYSICS LABORATORY PPPL 1 #12;Overview. distributions of the fast alpha and NNBI ions 2. estimates of toroidal rotation and Er profiles 3. gyrokinetic

  4. ann norderhaug anders: Topics by E-print Network

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

    Vice Chair Montana Henry Lorenzen Oregon W. Bill Booth Idaho James A. Yost Idaho Pat Smith Montana 2 Bill Bradbury Jennifer Anders Power Transmission, Distribution and Plants...

  5. 68 Computer Luiz Andr Barroso, Kourosh

    E-Print Network [OSTI]

    Barroso, Luiz André

    68 Computer Luiz André Barroso, Kourosh Gharachorloo, Tom Heynemann, Dan Joyce, David Lowell.A. Barroso et al., "Piranha: A Scalable Architecture Based on Single-Chip Multi- processing," Proc. 27th Ann-293. The authors are affiliated with Compaq Computer Corp. Contact Luiz André Barroso at Luiz.Barroso

  6. Teaching CPS Foundations With Contracts Andre Platzer

    E-Print Network [OSTI]

    Platzer, André

    extends to many other areas, includ- ing power plants [4], the whole power grid [5], or medical CPS [6 the result of such a succession. II. CPS FOUNDATIONS EDUCATION With CPS principles and technologies becomingTeaching CPS Foundations With Contracts Andr´e Platzer Computer Science Department Carnegie Mellon

  7. Curriculum Vitae Andrs Guerra, Ph.D.

    E-Print Network [OSTI]

    Curriculum Vitae Andrés Guerra, Ph.D. http Curriculum Vitae 2 of 3 Classes Taught at Colorado School of Mines: o Mechanics for Engineers: Statics (2009

  8. Prediction of biomass in Norwegian fish farms Anders Llanda,

    E-Print Network [OSTI]

    Aldrin, Magne

    involves systematic fluctuations in biomass and quantity of slaughtered fish. When the new fish have beenPrediction of biomass in Norwegian fish farms Anders Lølanda, , Magne Aldrina , Gunnhildur H). The model provided good predictions of future biomass of Norwegian farmed salmon and can also be used

  9. Heat transfer in proteinwater interfaces Anders Lervik,ab

    E-Print Network [OSTI]

    Kjelstrup, Signe

    Heat transfer in protein­water interfaces Anders Lervik,ab Fernando Bresme,*ac Signe Kjelstrup of the heat diffusion equation we compute the thermal conductivity and thermal diffusivity of the proteins by about 4 nm.4 It is expected that the energy transfer between these sites may involve the concerted

  10. Heat Plan DenmarkHeat Plan Denmark Anders Dyrelundy

    E-Print Network [OSTI]

    the supply and the demand side · An eye-opener for the Danish politicians · Could be a model for otherHeat Plan DenmarkHeat Plan Denmark Anders Dyrelundy Market Manager for Energy and Climate Rambøll Möller · The first study in Denmark, really to integrate the energy and building sectors ­ to combine

  11. E-Print Network 3.0 - anderer radikalfaenger auf Sample Search...

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

    Linear Algebra Summary: Englisch halten, die Proff. Gut- knecht und Gander auf Deutsch (falls es nicht anders gewunscht wird... .B. wird Prof. Parlett im ersten Monat auf...

  12. E-Print Network 3.0 - anderer stressfaktoren auf Sample Search...

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

    Linear Algebra Summary: Englisch halten, die Proff. Gut- knecht und Gander auf Deutsch (falls es nicht anders gewunscht wird... .B. wird Prof. Parlett im ersten Monat auf...

  13. CURRICULUM VITAE Andrs Fall, Ph.D.

    E-Print Network [OSTI]

    Yang, Zong-Liang

    -0140 Cell: (512) 810-2335 Updated: May 20, 2014 Academic Background 2005-2008 Ph.D. Virginia Tech-poor to 4-excellent. #12;Dr. András Fall - Vitae 3 Selected Publications Peer reviewed journal articles in shale: a review. Accepted pending revisions, AAPG Bulletin. 7. Fall, A., Eichhubl, P., Bodnar, R

  14. Summary of past research Andre Nies

    E-Print Network [OSTI]

    Goodman, James R.

    Summary of past research Andr´e Nies January 31, 2010 Contents 1 Computability and randomness 1 1 and randomness A mainstay of my research is the interaction between the randomness and the com- plexity aspects is mea- sured via reducibilities such as Turing reducibility. The randomness aspect of a set

  15. E-Print Network 3.0 - andres siirde lo Sample Search Results

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

    programs and services running in large com- puting... and other system Luiz Andre Barroso Google Parthasarathy Ranganathan HP Labs... of such topics. MICRO Luiz Andre...

  16. E-Print Network 3.0 - andres tolli hanh Sample Search Results

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

    program... and has been involved with the AAC for many years as a student and a front desk receptionist. Andre... school. Andre has always been very appreciative Source:...

  17. Ris National Laboratory Optics and Plasma Reserch Department

    E-Print Network [OSTI]

    , Anders Bjarklev, Peter E. Andersen Risø National Laboratory, Optics and Plasma Research Department, DK amplifier Frederik D. Nielsen and Lars Thrane Risø National Laboratory, Optics and Plasma Research. Lyngby, Denmark Peter E. Andersen (corresponding author) Risø National Laboratory, Optics and Plasma

  18. 1Andr Schning, ETH Zurich EPS2007, BSM Session, 19-25 July 2007, Manchester, UK Andr Schning

    E-Print Network [OSTI]

    1André Schöning, ETH Zurich EPS2007, BSM Session, 19-25 July 2007, Manchester, UK André Schöning ETH Zürich H1 Collaboration General Analysis of HERA II Data 27.5 GeV electron ­ 920 GeV proton EPS Conference, HEP 2007 19-25 July, Manchester, UK HERA #12;2André Schöning, ETH Zurich EPS2007, BSM Session, 19

  19. 1Andr Schning, ETH Zurich PHENO Symposium, 2-4 May 2005, Madison, Wisconsin, USA Andr Schning

    E-Print Network [OSTI]

    1André Schöning, ETH Zurich PHENO Symposium, 2-4 May 2005, Madison, Wisconsin, USA André Schöning ETH Zurich on behalf of the H1 and ZEUS collaborations Search for new Physics at HERA 27.5 GeV electron ­ 920 GeV proton #12;2André Schöning, ETH Zurich PHENO Symposium, 2-4 May 2005, Madison, Wisconsin

  20. Curriculum Vitae Andrs Guerra, Ph.D., P.E.

    E-Print Network [OSTI]

    Curriculum Vitae Andrés Guerra, Ph.D., P Nonlinear Programming," INFORMS Annual Conference, November 2007, Seattle, WA #12;Andrés Guerra Curriculum Vitae 2 of 4 ACADEMIC APPOINTMENTS June 2012 to May 2012: Postdoctoral Fellow ­ Mining Engineering

  1. Andre H. Sayles | 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 Delicious RankCombustion |Energy UsageAUDITVehiclesTankless orA BRIEF HISTORYAgencyLocal| Department of EnergyAndre

  2. A space-charge-neutralizing plasma for beam drift compression P.K. Roya,, P.A. Seidl a

    E-Print Network [OSTI]

    Gilson, Erik

    - long final focus solenoid (FFS). Measured data show that the plasma forms a thin column of diameter $5A space-charge-neutralizing plasma for beam drift compression P.K. Roya,Ã?, P.A. Seidl a , A. Anders of California, Berkeley, CA 94720, USA c Princeton Plasma Physics Laboratory, Princeton, NJ 08543, USA d

  3. LOWNESS AND 0 ROD DOWNEY, ANDRE NIES, REBECCA WEBER, AND LIANG YU

    E-Print Network [OSTI]

    Nies, Andre

    LOWNESS AND 0 2 NULLSETS ROD DOWNEY, ANDRE NIES, REBECCA WEBER, AND LIANG YU Abstract. We prove;2 ROD DOWNEY, ANDRE NIES, REBECCA WEBER, AND LIANG YU An equivalent definition is to say is weakly 2

  4. E-Print Network 3.0 - andres leesme hanno Sample Search Results

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

    allaDiversi approcci alla Storia della MatematicaStoria della Matematica Summary: a Parigi). Stiamo parlando diparlando di HenriHenri CartanCartan,, AndrAndr WeilWeil,,...

  5. E-Print Network 3.0 - andres krumme veronika Sample Search Results

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

    and Andres Montoyo... , Veronika Laippala and Tapio Salakoski. . . . . . . . .137 Building the Syntactic Reference Corpus... Models Ester Boldrini, Alexandra Balahur,...

  6. Power Prediction on Broadband Channels Mikael Sternad, Torbjorn Ekman, Anders Ahl en

    E-Print Network [OSTI]

    Power Prediction on Broadband Channels Mikael Sternad, Torbjorn Ekman, Anders Ahl#19;en Signals resource allocation and planning require accurate predictions of the changing received power. To form a prediction of the fading power, the individual taps of the channel are here predicted and their squared

  7. The Heavy Ion Fusion Science Virtual National Laboratory

    E-Print Network [OSTI]

    Gilson, Erik

    Final Focus Solenoid and Target Chamber ­ Cathodic Arc Plasma Source (CAPS) Developed by André AndersThe Heavy Ion Fusion Science Virtual National Laboratory Plasma Sources for Drivers and NDCX-II 19 P. Gilson Princeton Plasma Physics Laboratory #12;The Heavy Ion Fusion Science Virtual National

  8. FOCUSING AND NEUTRALIZATION OF INTENSE BEAMS Simon S. Yu, Andre Anders, F.M. Bieniosek, Shmuel Eylon, Enrique Henestroza, Prabir Roy,

    E-Print Network [OSTI]

    Gilson, Erik

    is essential for the viability of an economically competitive heavy ion fusion power plant. The physics of theoretical predictions with experiment, the Heavy Ion Fusion Virtual National Laboratory has completed

  9. A Synchronous Approach to Reactive System Design1 Charles Andr

    E-Print Network [OSTI]

    André, Charles

    our experience teaching discrete-event reactive systems to Electrical Engineering students. The courseA Synchronous Approach to Reactive System Design1 Charles André I3S Laboratory ­ UNSA/CNRS BP 121 This paper was presented at the 12th EAEEIE Annual Conf., 14-16 May 2001, Nancy (France). Abstract Reactive

  10. E-Print Network 3.0 - andres annuk kuno Sample Search Results

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

    the Cloud Ashraf Aboulnaga Summary: Systems Principles (SOSP), 2003. 6 Luiz Andre Barroso, Jeffrey Dean, and Urs Holzle. Web search... Archana Ganapathi, Harumi Kuno,...

  11. Maintenance Awareness in Wireless Sensor Networks Andre Barroso, Utz Roedig and Cormac J. Sreenan

    E-Print Network [OSTI]

    Roedig, Utz

    Maintenance Awareness in Wireless Sensor Networks Andre Barroso, Utz Roedig and Cormac J. Sreenan Mobile & Internet Systems Laboratory (MISL), University College Cork, Ireland Email: {a.barroso, u

  12. Maintenance Efficient Routing in Wireless Sensor Networks Andre Barroso, Utz Roedig and Cormac Sreenan

    E-Print Network [OSTI]

    Sreenan, Cormac J.

    Maintenance Efficient Routing in Wireless Sensor Networks Andre Barroso, Utz Roedig and Cormac Sreenan Mobile & Internet Systems Laboratory, University College Cork, Ireland Email: {a.barroso u

  13. E-Print Network 3.0 - aleksandr hlebnikov andres Sample Search...

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

    Summary: . Technical Report CE-P08-001, Princeton University, 2008. 5 Luiz Andre Barroso, Kourosh Gharachorloo... Gilbert Hendry, Shoaib Kamil, Aleksandr Biberman, Johnnie...

  14. E-Print Network 3.0 - andres tvauri tanel Sample Search Results

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

    Technologies and Information Sciences 57 Department of Management and Global Business Mark your Calendars Summary: with Andre' Sammartino - University of Melbourne University...

  15. E-Print Network 3.0 - andres aland tanel Sample Search Results

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

    Pays de Vaucluse Collection: Mathematics 75 Department of Management and Global Business Mark your Calendars Summary: with Andre' Sammartino - University of Melbourne University...

  16. E-Print Network 3.0 - acting andrs martin Sample Search Results

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

    het... werktijd en in binnen- en buitenland. Wissam Chemissany, Andres Collinucci, Ulf Gran, Rein Hal- ... Source: Groningen, Rijksuniversiteit - Centre for Ecological and...

  17. E-Print Network 3.0 - andres merits tiina Sample Search Results

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

    in Unpredictable Environments Andre S. Ribeiro, Tampere University of Technology, Finland; ... Source: Yli-Harja, Olli - Institute of Signal Processing, Tampere University of...

  18. E-Print Network 3.0 - andres annuk eugen Sample Search Results

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

    eugene... -Loud, Andre; University of Washington; walkloud@u.washington.edu Yuksel, Hasan; University of Wisconsin Source: Washington at Seattle, University of - Department of...

  19. E-Print Network 3.0 - andres sell ain-elmar Sample Search Results

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

    Collection: Mathematics 66 STA 6934 (STA 6248) Advanced Topics in Linear Models Spring, 2006 Course Outline and Policy Summary: Instructor: Dr. Andre I. Khuri Office: 205...

  20. E-Print Network 3.0 - andre sp brazil Sample Search Results

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

    de So Paulo Collection: Mathematics 68 REGISTRATION NOW OPEN 6th Frontiers in Bioenergy Summary: ), Purdue University Dr. Andr Nassar, CEO of ICONE, SP, Brazil Dr....

  1. E-Print Network 3.0 - andre kaufmann jerome Sample Search Results

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

    Choe, Jerome Mc... , Christopher Brouwer Cohan, Alexander Dabdub Colcord, Ben Sirignano Colorado, Andres Cowan, Dana Valdevit Source: Mease, Kenneth D. - Department of Mechanical...

  2. E-Print Network 3.0 - andres tvauri romeo Sample Search Results

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

    Baumann... Liebchen and Michael Schachtebeck and Anita Schobel and Sebas- tian Stiller and Andre Prigge: Computing... ohler and Alexander Reich and Romeo Rizzi:...

  3. E-Print Network 3.0 - andres kuusik rein Sample Search Results

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

    AND G. REIN w - , and L 0, can be thought... . ANDR EASSON AND G. REIN null geodesic ... Source: Rein, Gerhard - Mathematisches Institut, Universitt Bayreuth;...

  4. E-Print Network 3.0 - andres trikkel rein Sample Search Results

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

    AND G. REIN w - , and L 0, can be thought... . ANDR EASSON AND G. REIN null geodesic ... Source: Rein, Gerhard - Mathematisches Institut, Universitt Bayreuth;...

  5. E-Print Network 3.0 - andres marandi rein Sample Search Results

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

    AND G. REIN w - , and L 0, can be thought... . ANDR EASSON AND G. REIN null geodesic ... Source: Rein, Gerhard - Mathematisches Institut, Universitt Bayreuth;...

  6. ATLAS/BNL Physicist Marc-Andre Pleier Explains the Higgs Mechanism

    SciTech Connect (OSTI)

    Pleier,Marc-Andre

    2013-10-07T23:59:59.000Z

    ATLAS/BNL Physicist Marc-Andre Pleier explains his role in analyzing data from the Large Hadron Collider and the search for the Higgs boson

  7. E-Print Network 3.0 - andres island school Sample Search Results

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

    << < 1 2 3 4 5 > >> 1 Lisa Adams Gibson Elementary School Terrebonne Donna Adams Vernon Middle School Vernon Summary: Denton Lewis Vincent Elementary School Livingston Andre...

  8. E-Print Network 3.0 - andre gregor kyriakos Sample Search Results

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

    Summary: Valmont Organ Spaceport City Sunland Park Las Palomas White Sands Missile Range Fort Bliss McGregor Range... San Andres National Wildlife Refuge White Sands National...

  9. E-Print Network 3.0 - andre gregor eron Sample Search Results

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

    Summary: Valmont Organ Spaceport City Sunland Park Las Palomas White Sands Missile Range Fort Bliss McGregor Range... San Andres National Wildlife Refuge White Sands National...

  10. E-Print Network 3.0 - andre gregor mart Sample Search Results

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

    Summary: Valmont Organ Spaceport City Sunland Park Las Palomas White Sands Missile Range Fort Bliss McGregor Range... San Andres National Wildlife Refuge White Sands National...

  11. E-Print Network 3.0 - abc santo andre Sample Search Results

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

    da Costa 10001252, Andre Paiva Menezes 10002498, Anna Angelica da Silva... Lucas Pereira de Sousa 10001335, Ariadna Jesus Lopes da Silva 10002054, Arthur Vilela ......

  12. ATLAS/BNL Physicist Marc-Andre Pleier Explains the Higgs Mechanism

    ScienceCinema (OSTI)

    Pleier,Marc-Andre

    2014-06-04T23:59:59.000Z

    ATLAS/BNL Physicist Marc-Andre Pleier explains his role in analyzing data from the Large Hadron Collider and the search for the Higgs boson

  13. Rapid Holocene Deglaciation of the Labrador Sector of the Laurentide Ice Sheet ANDERS E. CARLSON* AND PETER U. CLARK

    E-Print Network [OSTI]

    Kurapov, Alexander

    Bay 8.4 cal ka BP (Barber et al. 1999), which caused the LIS to fragment into three ice caps that wereRapid Holocene Deglaciation of the Labrador Sector of the Laurentide Ice Sheet ANDERS E. CARLSON, in final form 31 January 2007) ABSTRACT Retreat of the Laurentide Ice Sheet (LIS) following the Last

  14. Rapid Holocene Deglaciation of the Labrador Sector of the Laurentide Ice Sheet ANDERS E. CARLSON* AND PETER U. CLARK

    E-Print Network [OSTI]

    ), which caused the LIS to fragment into three ice caps that were rem- nants of the three originallyRapid Holocene Deglaciation of the Labrador Sector of the Laurentide Ice Sheet ANDERS E. CARLSON, in final form 31 January 2007) ABSTRACT Retreat of the Laurentide Ice Sheet (LIS) following the Last

  15. Performance Evaluation of the Slotted Ring Multiprocessor Luiz Andr Barroso and Michel Dubois

    E-Print Network [OSTI]

    Barroso, Luiz André

    1 Performance Evaluation of the Slotted Ring Multiprocessor Luiz André Barroso and Michel Dubois-2562 (213) 740-9130 barroso@paris.usc.edu dubois@paris.usc.edu Abstract: As microprocessor speeds continue

  16. E-Print Network 3.0 - andres aland jaan Sample Search Results

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

    Search Sample search results for: andres aland jaan Page: << < 1 2 3 4 5 > >> 1 Finland Phone Numbers and Addresses (changed June 2, 2003) Summary: Finland Phone Numbers and...

  17. Replanning in a Resource-based Framework ? Roman van der Krogt, Andr Bos, and Cees Witteveen

    E-Print Network [OSTI]

    Kuzmanov, Georgi

    Replanning in a Resource-based Framework ? Roman van der Krogt, André Bos, and Cees Witteveen Delft on Planning. #12; set of possible (pre-compiled) plan repairs, but can also come from other agents that #16

  18. E-Print Network 3.0 - andres anier jri Sample Search Results

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

    Fig. 4. Heat maps showing the amount... dispersals in the neotropics from San Andres, Tabasco, Mexico. Proc Natl Acad Sci USA 104:6870-6875. 9 Source: Doebley, John - Department...

  19. Andre JAUN, PhD Born March 14, 1966

    E-Print Network [OSTI]

    Jaun, André

    ´en Laboratory is the plasma physics research division that has formerly been directed by the 1970 Nobel laureate of the Experts Group on Fast Particles for the International Thermonuclear Experimental Reactor (ITER simulation of tokamak plasmas. Development and comparison between models for the stability of global Alfv

  20. EEGSOLVER -BRAIN ACTIVITY AND GENETIC ALGORITHMS Paulo Aguiar Andr6 David Sandra Paulo Agostinho Rosa

    E-Print Network [OSTI]

    Boetticher, Gary D.

    EEGSOLVER - BRAIN ACTIVITY AND GENETIC ALGORITHMS Paulo Aguiar Andr6 David Sandra Paulo Agostinho.ist.uti.pt Keywords- EEG, Inverse Problem Solving, Genetic Al- gorithm, Brain Activity, Epilepsy. ABSTRACT Genetic an electroencephalogram (EEG), findingout where the spots of activity in the brain are. Our Brain is a mysterious machine

  1. Ensemble Forecasting of Volcanic Sulfur Emissions in Hawai'i Andre Pattantyus and Steven Businger

    E-Print Network [OSTI]

    Businger, Steven

    of Hawai'i. The probabilistic forecast products show uncertainty in pollutant concentrations of pollution known as "vog" after volcanic smog. Prevailing northeast trade winds in Hawaii advectEnsemble Forecasting of Volcanic Sulfur Emissions in Hawai'i Andre Pattantyus and Steven Businger

  2. The Condensate Equation for non-homogeneous Andre F. Verbeure1

    E-Print Network [OSTI]

    The Condensate Equation for non-homogeneous Bosons Andr´e F. Verbeure1 Institute for Theoretical)-condensation. This phe- nomenon is accompanied with spontaneous breaking of the translation symmetry down of the condensate equation for these systems. We discuss model applications. KEY WORDS: Bose- Einstein condensation

  3. Climate implications of algae-based bioenergy systems Andres Clarens, PhD

    E-Print Network [OSTI]

    Walter, M.Todd

    Climate implications of algae-based bioenergy systems Andres Clarens, PhD Assistant Professor Civil of algae and other nonconventional feedstocks, are being developed. This talk will explore several systems priorities. This is an especially challenging problem for algae-based biofuels because production pathways

  4. Optimal Renewal Policy for Slowly Degrading Andr'as Pfening and Mikl'os Telek

    E-Print Network [OSTI]

    Telek, Miklós

    Optimal Renewal Policy for Slowly Degrading Systems Andr'as Pfening and Mikl'os Telek Dept. In the paper we address the problem of determining the optimal time to renew a system when it experiences so to ``renew'' the system to its peak performance level. We analyze this model for two different queueing

  5. Geodesic as limits of geodesics on PL-surfaces Andre Lieutier

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Geodesic as limits of geodesics on PL-surfaces Andr´e Lieutier Boris Thibert Last modification of geodesics on PL-surfaces and in particular on subdivision surfaces. More precisely, if a sequence (Tn)nN of PL-surfaces converges in distance and in normals to a smooth surface S and if Cn is a geodesic of Tn

  6. On-line Hand-Eye Calibration Nicolas Andre , Radu Horaud, Bernard Espiau

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    On-line Hand-Eye Calibration Nicolas Andre , Radu Horaud, Bernard Espiau INRIA Rh^one-Alpes GRAVIR.lastname@inrialpes.fr Abstract In this paper, we address the problem of hand-eye calibration of a robot mounted video camera-line hand-eye calibration method. This method allows to get rid of the calibration object required

  7. A Novel MEMS LTCC Switch Matrix Bahram Yassini, Savio Choi, Andre Zybura, Ming Yu,

    E-Print Network [OSTI]

    Yu, Ming

    A Novel MEMS LTCC Switch Matrix Bahram Yassini, Savio Choi, Andre Zybura, Ming Yu, Robert. E planar 4x4 switch matrix using microelectromechanical system (MEMS) switches and Low Temperature Cofired Ceramic (LTCC) substrate is presented for the first time. Together a 9-layer LTCC substrate and 32 MEMS

  8. Priberam: A Turbo Semantic Parser with Second Order Features Andre F. T. Martins

    E-Print Network [OSTI]

    Murphy, Robert F.

    Priberam: A Turbo Semantic Parser with Second Order Features Andr´e F. T. Martins Mariana S. C a recently pro- posed dependency parser, TurboParser (Martins et al., 2010, 2013), to be able to perform). The result is TurboSemanticParser, which we re- lease as open-source software.1 We describe here a second

  9. Safe Intersections: At the Crossing of Hybrid Systems and Verification Sarah M. Loos and Andre Platzer

    E-Print Network [OSTI]

    Platzer, André

    scenarios may be distributed hybrid systems [21] when there is a multi-agent situation with mul- tiple carsSafe Intersections: At the Crossing of Hybrid Systems and Verification Sarah M. Loos and Andr and risks in ground trans- portation, e.g., by making cars aware of their environment and regulating speed

  10. Adapting Game Technology to Support Individual and Organizational Learning Emily Oh and Andr van der Hoek

    E-Print Network [OSTI]

    van der Hoek, André

    Adapting Game Technology to Support Individual and Organizational Learning Emily Oh and André van the software process in its fullest. Par- ticularly in the context of individual and organizational learning that facilitates individual and organizational learning. The environment supports individual learning by allowing

  11. Audio Classification by Search of Primary Components Julien PINQUIER, Jos ARIAS and Rgine ANDRE-OBRECHT

    E-Print Network [OSTI]

    Pinquier, Julien

    Audio Classification by Search of Primary Components Julien PINQUIER, José ARIAS and Régine ANDRE broadcasts. We present three different audio classification tools that we have developed. The first one, a speech/music classification tool, is based on three original features: entropy modulation, stationary

  12. OXYGEN GAS-PHASE ABUNDANCE REVISITED M. K. Andre,1,2

    E-Print Network [OSTI]

    Howk, Jay Christopher

    OXYGEN GAS-PHASE ABUNDANCE REVISITED M. K. Andre´,1,2 C. M. Oliveira,2 J. C. Howk,2 R. Ferlet,1 J gas-phase oxygen abundance along the sight lines toward 19 early-type Galactic stars at an average mag�1 with a standard deviation of 15% is consistent with previous surveys. The mean oxygen abundance

  13. Bio-optical properties of oceanic waters: A reappraisal Andre Morel

    E-Print Network [OSTI]

    California at Santa Barbara, University of

    Bio-optical properties of oceanic waters: A reappraisal Andre´ Morel Laboratoire de Physique et, California Abstract. The apparent optical properties (AOPs) of oceanic case 1 waters were previously analyzed describing the trophic conditions of water bodies. From these empirical relationships a bio-optical model

  14. A Wright-Fisher model with indirect Ludovic Goudenge and Pierre-Andr Zitt

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    A Wright-Fisher model with indirect selection Ludovic Goudenège and Pierre-André Zitt January 16 is then used as a building block for a variant of the classical Wright­ Fisher model. In the large population classically consid- ered in the Wright­Fisher model. Keywords: Wright­Fisher model; diffusion approximation

  15. INTEGRATED MICRO FUEL CELL POWER SUPPLY Andr D. Taylor and Levi T. Thompson

    E-Print Network [OSTI]

    Haller, Gary L.

    . Microfabricated micro-fuel cells hold promise for being highly efficient with low cost. Several approaches haveINTEGRATED MICRO FUEL CELL POWER SUPPLY André D. Taylor and Levi T. Thompson University of Michigan Ann Arbor, Michigan 48109-2136 ABSTRACT An integrated thin film micro fuel cell power supply design

  16. Dash for Gas: The Sequel Christopher R. Knittel Konstantinos Metaxoglou Andre Trindade

    E-Print Network [OSTI]

    Rothman, Daniel

    Dash for Gas: The Sequel Christopher R. Knittel Konstantinos Metaxoglou Andre Trindade March 28 of the post-2005 natural gas glut in the United States due to the rapid development of technology related to hydraulic fracturing for extracting shale gas. We focus on fuel switching decisions by electric power plants

  17. Microwaves in Organic Synthesis Edited by Andre Loupy

    E-Print Network [OSTI]

    Cirkva, Vladimir

    .1 Introduction 860 19.2 Ultraviolet Discharge in Electrodeless Lamps 861 19.2.1 Theoretical Aspects, high pressure, mechanical activation, or plasma discharge. Since first reports of the use of MW heating

  18. Distributed Low-Complexity Controller for Wind Power Plant in Derated Benjamin Biegel Daria Madjidian Vedrana Spudic Anders Rantzer Jakob Stoustrup

    E-Print Network [OSTI]

    Distributed Low-Complexity Controller for Wind Power Plant in Derated Operation Benjamin Biegel Daria Madjidian Vedrana Spudi´c Anders Rantzer Jakob Stoustrup Abstract-- We consider a wind power plant of megawatt wind turbines operating in derated mode. When operating in this mode, the wind power plant

  19. Sequence stratigraphy of the upper San Andres and Grayburg formations, Waddell Field, Crane County, Texas: implications for hydrocarbon reservoir distribution

    E-Print Network [OSTI]

    Pinsonnault, Scott Michael

    1996-01-01T23:59:59.000Z

    The upper San Andres and Grayburg formations (Guadalupian) were deposited on carbonate platforms around the Permian Basin region and are extensive hydrocarbon reservoirs in the region. The Waddell Field (East Waddell Ranch) on the eastern margin...

  20. Design and characterization of a neutralized-transport experiment for heavy-ion fusion Enrique Henestroza, Shmuel Eylon, Prabir K. Roy, Simon S. Yu, Andre Anders, Frank M. Bieniosek,

    E-Print Network [OSTI]

    Gilson, Erik

    to hit spots on the target with radii of about 2 mm. For the heavy-ion-fusion power-plant scenarios comparisons of these theoretical predictions with experiment, the Virtual National Laboratory for Heavy Ion

  1. Sequence stratigraphic and sedimentologic analysis of the Permian San Andres Formation (upper Leonardian-lower Guadalupian), Northwest Shelf, Permian Basin

    E-Print Network [OSTI]

    Beserra, Troy Brett

    1994-01-01T23:59:59.000Z

    SEQUENCE STRATIGRAPHIC AND SEDIMENTOLOGIC ANALYSIS OF THE PERMIAN SAN ANDRES FORMATION (UPPER LEONARDIAN-LOWER GUADALUPIAN), NORTHWEST SHELF, PERMIAN BASIN A Thesis by TROY BRETT BESERRA Submitted to the Office of Graduate Studies of Texas A...&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE August 1994 Major Subject: Geology SEQUENCE STRATIGRAPHIC AND SEDIMENTOLOGIC ANALYSIS OF THE PERMIAN SAN ANDRES FORMATION (UPPER LEONARDIAN-LOWER GUADALUPIANl...

  2. Depositional and diagenetic history of the San Andres Formation, Cornell Unit, Wasson field, Yoakum County, Texas

    E-Print Network [OSTI]

    Morrison, Gregory Dean

    1986-01-01T23:59:59.000Z

    observed in chert nodules indicated skeletal wackestone to rare packstone textures. The grain size and sorting in these rocks reflects a broad-spectrum source. In general, the coarser grain sizes are associated with packstone textures . This suggests... County, Texas. (December, 1986) Gregory Dean Morrison, B. S. , Muskingum College Chairman of Advisory Committee: Dr. Wayne Ahr The rocks comprising the lower M-5 and M-6 reservoir zones of the Permian San Andres Formation in the Cornell Unit, Wasson...

  3. Student: Fernando O Mardones, PhD candidate Major Professor: Andres M. Perez, Tim E. Carpenter

    E-Print Network [OSTI]

    Leistikow, Bruce N.

    Student: Fernando O Mardones, PhD candidate Major Professor: Andres M. Perez, Tim E. Carpenter, Perez AM, Mardones FO, Pérez-Sancho M, García-Seco T, Pagés E, Mirat F, Díaz R, Carpintero J, Domínguez 23(1): 9-18. - Mardones FO, Perez AM, Valdes-Donoso P, Carpenter TE. 2011. Farm-level reproduction

  4. Private Memoirs of a Smart Meter Andres Molina-Markham, Prashant Shenoy, Kevin Fu, Emmanuel Cecchet, and David Irwin

    E-Print Network [OSTI]

    Shenoy, Prashant

    Private Memoirs of a Smart Meter Andr´es Molina-Markham, Prashant Shenoy, Kevin Fu, Emmanuel,shenoy,kevinfu,cecchet,irwin}@cs.umass.edu Abstract Household smart meters that measure power consumption in real-time at fine granularities are the foundation of a future smart electricity grid. However, the widespread deployment of smart meters has serious

  5. Color and spectral analysis of daylight in southern Javier Hernandez-Andres, Javier Romero, and Juan L. Nieves

    E-Print Network [OSTI]

    Lee Jr., Raymond L.

    Color and spectral analysis of daylight in southern Europe Javier Herna´ndez-Andre´s, Javier Romero We have analyzed the colorimetric and spectral characteristics of 2600 daylight spectra (global), luminous efficacies, and relative UV and IR contents of Granada daylight. The chromaticity coordinates

  6. Heating of beam ions by ion acoustic waves A. Vaivads, K. Ro nnmark, T. Oscarsson, and M. Andre

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    spectral density at frequencies much below the ion gyrofrequency. The wave power decreases with increasingHeating of beam ions by ion acoustic waves A. Vaivads, K. RoÃ? nnmark, T. Oscarsson, and M. AndreÃ? Swedish Institute of Space Physics, University of UmeaÃ? , S-901 87 UMEAÃ? , Sweden Received: 30 April 1997

  7. Stratigraphic cyclicity and reservoir heterogeneity within upper San Andres and Grayburg strata (upper Permian-Guadalupian), Maljamar field, Se New Mexico

    E-Print Network [OSTI]

    Modica, Christopher James

    1997-01-01T23:59:59.000Z

    of upper San Andres strata. Cavernous porosity was later plugged with massive anhydrite, resulting in the degradation of reservoir quality. In the overlying Grayburg Formation, cycles consist of mixed sandstone and shallowwater carbonate facies...

  8. Depositional sequences and integrated recovery efficiency forecast models for San Andres and Clearfork Units in the Central Basin Platform and the Northern Shelf, west Texas

    E-Print Network [OSTI]

    Shao, Hongbin

    1994-01-01T23:59:59.000Z

    models of primary, initial waterflood and infill drilling are developed for the San Andres and Clearfork reservoirs in Central Basin Platform and the Northern Shelf, west Texas. The geological parameters and well spacing are considered major factors...

  9. X-ray spectroscopic application of Cr/Sc periodic multilayers K. Le Guen, H. Maury, J.-M. Andr, P. Jonnard, A. Hardouin et al.

    E-Print Network [OSTI]

    X-ray spectroscopic application of Cr/Sc periodic multilayers K. Le Guen, H. Maury, J.-M. André, P://apl.aip.org/about/rights_and_permissions #12;X-ray spectroscopic application of Cr/Sc periodic multilayers K. Le Guen,a H. Maury, J.-M. André-Paris 6, UMR-CNRS 7614, 11 rue Pierre et Marie Curie, F-75231 Paris Cedex 05, France A. Hardouin, F

  10. Microseismic monitoring as a tool for mapping fractures in the San Andres dolomite. [Microearthquakes

    SciTech Connect (OSTI)

    Rutledge, J.T.; Fairbanks, T.D.; House, L.S. (Los Alamos National Lab., NM (United States)); Murphy, M.B. (Murphy Operating Corp., Roswell, NM (United States))

    1991-01-01T23:59:59.000Z

    Microseismic monitoring shows promise of being a practical tool for mapping fractures in the San Andres dolomite in terms of rate of microearthquake occurrence and the areal coverage possible from a single downhole seismometer. Microearthquakes were detected during normal waterflood production but monitoring was not complete enough to correlate injection/production activity with microseismic event recurrence. Constant monitoring time capability with at least 3 downhole seismometers is needed to more accurately locate events, and to reliably characterize seismic recurrence in the field. In addition, modeling pressure variations in the reservoir may help explain the mechanisms that produces the microearthquakes. Data useful in modeling the pressure variations could be from tracer experiments, pressure interference tests and individual well production-injection volume. Understanding the mechanism of producing the microearthquakes should, in turn, allow the correlation of the microseismicity with fluid flow within the reservoir. 2 refs., 3 figs.

  11. Microseismic monitoring as a tool for mapping fractures in the San Andres dolomite

    SciTech Connect (OSTI)

    Rutledge, J.T.; Fairbanks, T.D.; House, L.S. [Los Alamos National Lab., NM (United States); Murphy, M.B. [Murphy Operating Corp., Roswell, NM (United States)

    1991-12-31T23:59:59.000Z

    Microseismic monitoring shows promise of being a practical tool for mapping fractures in the San Andres dolomite in terms of rate of microearthquake occurrence and the areal coverage possible from a single downhole seismometer. Microearthquakes were detected during normal waterflood production but monitoring was not complete enough to correlate injection/production activity with microseismic event recurrence. Constant monitoring time capability with at least 3 downhole seismometers is needed to more accurately locate events, and to reliably characterize seismic recurrence in the field. In addition, modeling pressure variations in the reservoir may help explain the mechanisms that produces the microearthquakes. Data useful in modeling the pressure variations could be from tracer experiments, pressure interference tests and individual well production-injection volume. Understanding the mechanism of producing the microearthquakes should, in turn, allow the correlation of the microseismicity with fluid flow within the reservoir. 2 refs., 3 figs.

  12. Desenvolvimento Computacional para Observaes Astronmicas Remotas Ana Lcia da Silva Beraldo1, Andr de Castro Milone2

    E-Print Network [OSTI]

    , André de Castro Milone2 1-PCI-MCT/INPE, 2-INPE Introdução A proposta central do sistema web desenvolvido a orientação do Prof. Dr. Antônio Kanaan (UFSC) como apenas uma interface web do UTS ("Unified Telescope System preliminar das imagens (correção por bias, flat e dark). Auto-as

  13. Bill Bradbury Jennifer Anders

    E-Print Network [OSTI]

    , surplus hydro, borrowed hydro Standby Resources Type 1 Nondeclared utility resources (diesel generators 3, 2014 MEMORANDUM TO: Power Committee Members FROM: John Fazio, Senior Systems Analyst SUBJECT-222-5161) Summary: In power system planning, there has always been a tradeoff between cost and adequacy (or

  14. Bill Bradbury Jennifer Anders

    E-Print Network [OSTI]

    submitting study requests to WECC for the 2014 transmission case, Yost stated. We have also asked staff

  15. Bill Bradbury Jennifer Anders

    E-Print Network [OSTI]

    and talked about submitting study requests to WECC for the 2014 transmission case, Yost stated. We have also

  16. Bill Bradbury Jennifer Anders

    E-Print Network [OSTI]

    production can be a very electricity intensive. Provide information on energy efficiency potential Electricity Use in Indoor Production Aluminum Production ~ 16 KWH/kg Indoor Cannabis production ~ 5000 KWH 3, 2014 MEMORANDUM TO: Power Committee FROM: Massoud Jourabchi SUBJECT: Electrical load impacts

  17. Bill Bradbury Jennifer Anders

    E-Print Network [OSTI]

    ) to serve scheduled transactions and/or native load. Resources that have elected to be market dispatched to address the Council Members concerning the NW Power Pool Energy Imbalance Market effort. The NWPP is considering the design for a within-hour energy only market, called a security constrained economic dispatch

  18. Bill Bradbury Jennifer Anders

    E-Print Network [OSTI]

    " of the hydroelectric facilities on the Columbia River or its tributaries; and to do so "while assuring the region, and opportunities presented by the development and operation of hydroelectric facilities on the Columbia River

  19. Bill Bradbury Jennifer Anders

    E-Print Network [OSTI]

    -frame) staff is considering the use of the AURORAxmp model, with 80 hydroelectric generation shapes (based into the Council's TRAP hourly hydroelectric model and its GENESYS model. Typically, the hydroelectric system has

  20. Bill Bradbury Jennifer Anders

    E-Print Network [OSTI]

    and wildlife affected by the development and operation of hydroelectric facilities while assuring the Pacific and operation of any hydroelectric project on the Columbia River; · establishing objectives for the development of anadromous fish at, and between, the region's hydroelectric dams." ANALYSIS: Recommendations and comments

  1. Bill Bradbury Jennifer Anders

    E-Print Network [OSTI]

    adequate stock coverage to satisfy specific monitoring needs (under both the FCRPS BiOp and Fish as informing NOAA Sec. 10 take-permits. Workplan: Both the 2008 NOAA Fisheries FCRPS Biological Opinion

  2. Bill Bradbury Jennifer Anders

    E-Print Network [OSTI]

    the committee began with a primer on solar energy and the work staff will do to determine the cost benefits of energy efficiency that displaces wood burning, he said, adding that this is the first opportunity for the Council to look at issues related to the health benefits of energy efficiency

  3. Bill Bradbury Jennifer Anders

    E-Print Network [OSTI]

    electric heating systems to ductless heat pumps. These savings estimates were based on an analysis of the pre and post- electricity use of over 3,400 homes with existing zonal electric heating systems on the previous zonal electric heating system and, as a result, were using less wood. Based on these findings

  4. Bill Bradbury Jennifer Anders

    E-Print Network [OSTI]

    terms? The analysis uses an example measure (ductless heat pumps) to step through a methodology for some energy efficiency measures. While the report focuses on the ductless heat pump program example for space heating. According to the Northwest Energy Efficiency Alliance (NEEA) 2011 Residential Building

  5. Bill Bradbury Jennifer Anders

    E-Print Network [OSTI]

    30, 2014 MEMORANDUM TO: Council Members FROM: Council Staff SUBJECT: Fish and Wildlife Program Council meeting with the goal of adopting an amended Columbia River Basin Fish and Wildlife Program at the October 10th Council meeting. Relevance: Amending the fish and wildlife program is called

  6. Bill Bradbury Jennifer Anders

    E-Print Network [OSTI]

    the inherent uncertainty in major drivers of electricity demand, resource costs and risks. This is the second

  7. Bill Bradbury Jennifer Anders

    E-Print Network [OSTI]

    Owned Utilities Popoff Phillip Puget Sound Energy Pope Maria Portland General Electric Hines John Gamponia Villamor Puget Sound Energy Brown Stefan Portland General Electric Bushnell John Northwestern meeting in Seattle. Under that charter, the Council chair will appoint the co-chairs for both the steering

  8. Bill Bradbury Jennifer Anders

    E-Print Network [OSTI]

    Forecasts Natural gas, coal, oil Transmission, Integration Costs Reference Plant Key Attributes (1 feedback. More Info: The GRAC webpage has a lot of information on topics and resources covered thus far strategy over the 20 year planning horizon Generating resource assessment informs the resource strategy R

  9. Bill Bradbury Jennifer Anders

    E-Print Network [OSTI]

    a performance period of March 1, 2014 to February 28, 2015. 1 The first project budget was established in FY for Fiscal Year 20081 through 2017. The Fiscal Year 2014 expense budget for the project is $229,182 and has, deliverable 1 only through completion and not beyond FY2017 (Analysis of Fall Walleye Index Netting Bycatch

  10. Bill Bradbury Jennifer Anders

    E-Print Network [OSTI]

    linked directly to this presentation. 1 The first project budget was establish in FY 2013. #12;LR Burbot for Fiscal Year 20081 through 2017. The Fiscal Year 2014 expense budget for the project is $229,182 and has a performance period of March 1, 2014 to February 28, 2015. Workplan: There are no 2014 division workplan tasks

  11. Bill Bradbury Jennifer Anders

    E-Print Network [OSTI]

    3, 2014 MEMORANDUM TO: Council Members FROM: Council Staff SUBJECT: Fish and Wildlife Program , 2014 draft fish and wildlife program. Attached are staff proposed revisions to the draft. The staff and September 10th Council meetings with the goal of adopting and amended Columbia River Basin Fish and Wildlife

  12. Bill Bradbury Jennifer Anders

    E-Print Network [OSTI]

    , Fish and Wildlife Division Director John Shurts, General Counsel Laura Robinson, Program Implementation and Liaison Specialist SUBJECT: Columbia River Basin Fish and Wildlife Program amendment process 1. General approach to development of draft Program and draft schedule (page 2) 2. Columbia Basin Fish and Wildlife

  13. Bill Bradbury Jennifer Anders

    E-Print Network [OSTI]

    is "Learning from Our Past to Shape Our Future. 1. Discussion of Draft Northwest Energy Efficiency Alliance Director, NEEA, presentation. Jim West, chair of the Northwest Energy Efficiency Alliance (NEEA) board at 1:35 pm on May 6th and adjourned it at 12:02 pm on May 7th . All members were present, except Jim

  14. Bill Bradbury Jennifer Anders

    E-Print Network [OSTI]

    .S. Forest Service Payette Supervisor Office 6 Biomass Energy Utilization #12; Idaho Industrial Energy Saving, 2014 MEMORANDUM TO: Council Members From: Shirley Lindstrom Subject: Update on energy issues in Idaho John Chatburn is the Director of the Idaho Governor's Office of Energy Resources (OER). He is going

  15. Bill Bradbury Jennifer Anders

    E-Print Network [OSTI]

    and generation to meet the demand at the lowest cost consistent with adequate and reliable electricity service OF THE GENERATING RESOURCES ADVISORY COMMITTEE 1. Official Designation: This advisory committee will be known as the Northwest Power and Conservation Council's Generating Resources Advisory Committee. 2. Background

  16. Bill Bradbury Jennifer Anders

    E-Print Network [OSTI]

    Calculator 1) Fixed Levelized Cost $/kWyr 2) Full LCOE $/MWh (with energy production and variable costs, annualized payment (like a mortgage payment) ­ Levelized Cost. When divided by annual energy production

  17. Bill Bradbury Jennifer Anders

    E-Print Network [OSTI]

    recommendations. Gilly Lyons of Save Our Wild Salmon said her group strongly supports the expanded spill test and the Northwest Energy Coalition (NWEC) sent to the Council February 4 that says the spill test does not have to lead to increases in power sector carbon emissions and that energy efficiency, new renewable generation

  18. Bill Bradbury Jennifer Anders

    E-Print Network [OSTI]

    /Exports Wholesale Electricity Market Prices These These inputsinputs Wholesale Electricity Market Prices Including Market Price Caps on Wholesale Electricity Market Prices Annual Limits on Retrofit Conservation

  19. Bill Bradbury Jennifer Anders

    E-Print Network [OSTI]

    but serves load within the region is counted as in- region Forecasts for demand (net of conservation Forecast Range BACKGROUND: Presenter: Steven Simmons Summary: A 20-year forecast range of wholesale power AURORAxmp by EPIS to generate a forecast for power prices across the Western Electricity Coordination

  20. Bill Bradbury Jennifer Anders

    E-Print Network [OSTI]

    . The Demand Forecasting, Conservation Resources and Generating Resources advisory committees will take up · Forecast cost changes · Forecast consumer adoption rates under business as usual assumptions · Incorporate consumer adoption rates into load forecast · Identify remaining potential as options for resource

  1. Bill Bradbury Jennifer Anders

    E-Print Network [OSTI]

    , religious, and resource purposes #12;CSKT ­ Our People · The Tribal confederacy is comprised the Flathead Indian Reservation as a permanent homeland for Tribal people by the terms of the Hellgate Treaty operates Mission Valley Power, a federally- owned electrical utility, serving approximately 22

  2. Bill Bradbury Jennifer Anders

    E-Print Network [OSTI]

    . See Northwest Power Act, Sections 2(3) and 4(g). Among many other pieces of information, people Northwest Conservation and Electric Power Plan Supplemental Statement June 2014 In September 2013, the Ninth Circuit remanded the Sixth Power Plan to the Council for the "limited purpose" of "reconsidering

  3. Bill Bradbury Jennifer Anders

    E-Print Network [OSTI]

    16, 2014 MEMORANDUM TO: Interested Parties FROM: Council Staff SUBJECT: Council's Regional Hydropower hydropower scoping study. The Council selected a proposal by the Northwest Hydroelectric Association (NWHA potential for new hydropower development and for upgrades to existing units, and the costs associated

  4. Bill Bradbury Jennifer Anders

    E-Print Network [OSTI]

    , 2014 MEMORANDUM TO: Fish and Wildlife Committee Members FROM: Laura Robinson, Program Implementation Summary: Council staff will brief the Fish and Wildlife Committee on the plan to pursue the program's first phase for a feasibility study for anadromous fish reintroduction above Chief Joseph and Grand

  5. Bill Bradbury Jennifer Anders

    E-Print Network [OSTI]

    the Columbia River, Welch reported. Hydro system mitigation efforts may be ineffective if differential survival processes is important because hydro system operations can then be distinguished from poor ocean. There's a very small difference compared to what was expected, replied Welch. Ocean impacts are very

  6. Bill Bradbury Jennifer Anders

    E-Print Network [OSTI]

    capacity needs and improve the consistency between the Council's GENESYS model. This logic will also permit

  7. Bill Bradbury Jennifer Anders

    E-Print Network [OSTI]

    Relevance: The development and tracking of HLIs for the Council's Power Plan would permit both the Council SIGNIFICANCE: The development and tracking of HLIs for the Council's Power Plan would permit both the Council

  8. Bill Bradbury Jennifer Anders

    E-Print Network [OSTI]

    Idaho James A. Yost Idaho Pat Smith Montana Tom Karier Washington Phil Rockefeller Washington October 28 that follows a scientific journal format. The objective of the new template is to create standardized reports that increase scientific consistency, improve content, timeliness, efficiency of reporting, and accessibility

  9. Bill Bradbury Jennifer Anders

    E-Print Network [OSTI]

    Updated Resource Needs Assessment Draft Resource and Action Plan Public Comment Q3 Q4 Q2 2015 Draft PlanForecast ModelModel EBaseline Energy Efficiency ResourceEnergy Efficiency Resource Potential AssessmentGenerating Resource Potential AssessmentAssessment Supply Side Resource Cost & Availability gygy efficiencyefficiency

  10. Bill Bradbury Jennifer Anders

    E-Print Network [OSTI]

    an update on the region's Smart Grid pilot project, he continued. It will be 18 months before there is data Tagging Forum's 17 recommendations. Staff outlined a scenario for implementation and proposed a timeline support and adoption of both the Regional Technical Forum's proposed 2014 work plan and budget. Henry

  11. Bill Bradbury Jennifer Anders

    E-Print Network [OSTI]

    conclusions from the proposed load forecast for the 2020 RAA are: Weather normalized annual energy loads. Therefore, the proposed forecast includes range of annual energy use and estimates for hourly #12;summer Adequacy Assessment Massoud Jourabchi September 9, 2014 Today's Topics Review actual annual and peak loads

  12. Bill Bradbury Jennifer Anders

    E-Print Network [OSTI]

    to facilitate de-listing and to increase population abundance to levels that could support sport and tribal

  13. Bill Bradbury Jennifer Anders

    E-Print Network [OSTI]

    Electric Cooperative, based in Hermiston, Oregon, began his presentation by saying he understands of #12;2 regulators and state energy office representatives held in Arizona, Smith noted. We also Rettenmund, Inland Power and Light; Steve Eldrige, Umatilla Cooperative (by phone); and Terry Flores

  14. Bill Bradbury Jennifer Anders

    E-Print Network [OSTI]

    from Salish Kootenai College will give a presentation on flowering rush. This aquatic invasive plant Power Planning Council, Missoula, MT June 11, 2014 #12;#12;· Fully Submerged Form · Emergent Form: Category A; Limited distribution and eradication Oregon: Category A; High threat, not known to exist Idaho

  15. Bill Bradbury Jennifer Anders

    E-Print Network [OSTI]

    International Utilities BPA * Source: US National Science Foundation 2012 data #12;Technology Innovation: Cyclical Process 4 #12;ROADMAPPING PROJECT MANAGEMENT PORTFOLIO MANAGEMENT TECHNOLOGY TRANSFER Technology Technology Transfer Application of technology to meet business challenge Technology commercialization

  16. Large-Scale Context in Protein Folding: Villin Headpiece Ariel Fernandez,*,, Min-yi Shen,| Andres Colubri, Tobin R. Sosnick,, R. Stephen Berry,| and Karl F. Freed*,|

    E-Print Network [OSTI]

    Berry, R. Stephen

    Large-Scale Context in Protein Folding: Villin Headpiece Ariel Ferna´ndez,*,,§ Min-yi Shen,| Andre but that are predicted to affect the folding rates and dynamics dramatically. The problem of protein folding breaks the protein folding process that has to date made it difficult to develop an ab initio approach to describe

  17. Plasma Diagnostics and Plasma-Surface Interactions in Inductively Coupled Plasmas

    E-Print Network [OSTI]

    Titus, Monica Joy

    2010-01-01T23:59:59.000Z

    Plasma Diagnostics and Plasma-Surface Interactions inLieberman Spring 2010 Plasma Diagnostics and Plasma-SurfaceJoy Titus Abstract Plasma Diagnostics and Plasma-Surface

  18. Plasma Physics

    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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation Desert Southwest RegionatSearch Welcome to theNews & Blog »Physics PhysicsWeekPlasma

  19. Measurements of plasma bremsstrahlung and plasma energy density produced by electron cyclotron resonance ion source plasmas

    E-Print Network [OSTI]

    Noland, Jonathan David

    2011-01-01T23:59:59.000Z

    high temperature plasma diagnostics used to study high en-high temperature plasma diagnostic. Plasma bremsstrahlungand J Ärje. Plasma breakdown diagnostics with the biased

  20. Boundary Plasma Issues in Burning Plasma Science

    E-Print Network [OSTI]

    Pitcher, C. S.

    of operation ) ···· we know a lot more now than during the BPX design! #12;(1) Wide Dispersal of Power plasma/neutral densities · criterion for high recycling and cold divertor, Tt ~ 5 eV (a prerequisite high energy threshold) · interaction at walls of tenuous plasma: 1. how does plasma reach wall? (rapid

  1. Boundary Plasma Issues in Burning Plasma Science

    E-Print Network [OSTI]

    of operation ) · we know a lot more now than during the BPX design! #12;(1) Wide Dispersal of Power plasma/neutral densities · criterion for high recycling and cold divertor, Tt ~ 5 eV (a prerequisite) · interaction at walls of tenuous plasma: 1.how does plasma reach wall? (rapid transport?) 2.can dominate core

  2. Communication through plasma sheaths

    SciTech Connect (OSTI)

    Korotkevich, A. O.; Newell, A. C.; Zakharov, V. E. [Landau Institute for Theoretical Physics RAS, 2, Kosygin Str., Moscow, 119334 (Russian Federation); Department of Mathematics, University of Arizona, 617 N. Santa Rita Ave., Tucson, Arizona 85721 (United States); Department of Mathematics, University of Arizona, 617 N. Santa Rita Ave., Tucson, Arizona 85721 (United States); Lebedev Physical Institute RAS, 53, Leninsky Prosp., GSP-1 Moscow, 119991 (Russian Federation); Landau Institute for Theoretical Physics RAS, 2, Kosygin Str., Moscow, 119334 (Russian Federation) and Waves and Solitons LLC, 918 W. Windsong Dr., Phoenix, Arizona 85045 (United States)

    2007-10-15T23:59:59.000Z

    We wish to transmit messages to and from a hypersonic vehicle around which a plasma sheath has formed. For long distance transmission, the signal carrying these messages must be necessarily low frequency, typically 2 GHz, to which the plasma sheath is opaque. The idea is to use the plasma properties to make the plasma sheath appear transparent.

  3. Plasma sweeper. [Patents

    DOE Patents [OSTI]

    Motley, R.W.; Glanz, J.

    1982-10-25T23:59:59.000Z

    A device is described for coupling RF power (a plasma sweeper) from RF power introducing means to a plasma having a magnetic field associated therewith comprises at least one electrode positioned near the plasma and near the RF power introducing means. Means are described for generating a static electric field at the electrode directed into the plasma and having a component substantially perpendicular to the plasma magnetic field such that a non-zero vector cross-product of the electric and magnetic fields exerts a force on the plasma causing the plasma to drift.

  4. Theoretical & Computational Plasma Physicist | Princeton Plasma...

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

    Research Requisition Number: 1400777 PPPLTheory Department has an opening at the rank of Research Physicist in theoretical and computational plasma physics in the area of...

  5. Robert JOUMARD Michel ANDR

    E-Print Network [OSTI]

    Boyer, Edmond

    inventories and scenarios, VITO Phillippe DEVAUX, project engineer, internal combustion engines, Empa Savas, Institute for Internal Combustion Engines and Thermodynamics, Inffeldgasse 21A, 8010 Graz, Austria tel +43 research engineer, vehicle emissions and energy use, VTT Tuan LE ANH, researcher, vehicle emissions, TUG

  6. Boundary Plasma Issues in Burning Plasma Science

    E-Print Network [OSTI]

    Pitcher, C. S.

    during the BPX design! #12;(1) Wide Dispersal of Power/(cont) ···· high recycling or detached regimes for high recycling and cold divertor, Tt ~ 5 eV (a prerequisite for detachment), L = connection length, nu high energy threshold) · interaction at walls of tenuous plasma: 1. how does plasma reach wall? (rapid

  7. Basic concept in plasma diagnostics

    E-Print Network [OSTI]

    Rai, V N

    2014-01-01T23:59:59.000Z

    This paper presents the basic concept of various plasma diagnostics used for the study of plasma characteristics in different plasma experiments ranging from low temperature to high energy density plasma.

  8. Thermionic energy conversion plasmas

    SciTech Connect (OSTI)

    Rasor, N.S. (Rasor Associates, Inc., Sunnyvale, CA (United States))

    1991-12-01T23:59:59.000Z

    In this paper the history, application options, and ideal basic performance of the thermionic energy converter are outlined. The basic plasma types associated with various modes of converter operation are described, with emphasis on identification and semi-quantitative characterization of the dominant physical processes and utility of each plasma type. The frontier plasma science issues in thermionic converter applications are briefly summarized.

  9. Application of Reservoir Characterization and Advanced Technology to Improve Recovery and Economics in a Lower Quality Shallow Shelf San Andres Reservoir.

    SciTech Connect (OSTI)

    Taylor, A.R.; Hickman, T.S. [T. SCOTT HICKMAN AND ASSOCIATES 550 WEST TEXAS STREET SUITE 950 MIDLAND, TX (United States) 79701; Justice, J.J. [ADVANCED RESERVOIR TECHNOLOGIES P. O. BOX 985 ADDISON, TX (United States) 75001-0985

    1997-07-30T23:59:59.000Z

    The Class 2 Project at West Welch was designed to demonstrate the use of advanced technologies to enhance the economics of improved oil recovery (IOR) projects in lower quality Shallow Shelf Carbonate (SSC) reservoirs, resulting in recovery of additional oil that would otherwise be left in the reservoir at project abandonment. Accurate reservoir description is critical to the effective evaluation and efficient design of IOR projects in the heterogeneous SSC reservoirs. Therefore, the majority of Budget Period 1 was devoted to reservoir characterization. Technologies being demonstrated include: l. Advanced petrophysics 2. Three-dimensional (3-D) seismic 3. Cross-well bore tomography 4. Advanced reservoir simulation 5. Carbon dioxide (CO{sub 2}) stimulation treatments 6. Hydraulic fracturing design and monitoring 7. Mobility control agents. West Welch Unit is one of four large waterflood units in the Welch Field in the northwestern portion of Dawson County, Texas. The Welch Field was discovered in the early 1940`s and produces oil under a solution gas drive mechanism from the San Andres formation at approximately 4800 ft. The field has been under waterflood for 30 years and a significant portion has been infill-drilled on 20-ac density. A 1982-86 Pilot C0{sub 2} injection project in the offsetting South Welch Unit yielded positive results. Recent installation of a C0{sub 2} pipeline near the field allowed the phased development of a miscible C0 injection project at the South Welch Unit. The reservoir quality at the West Welch Unit is poorer than other San Andres reservoirs due to its relative position to sea level during deposition. Because of the proximity of a C0{sub 2} source and the C0{sub 2} operating experience that would be available from the South Welch Unit, West Welch Unit is an ideal location for demonstrating methods for enhancing economics of IOR projects in lower quality SSC reservoirs. This Class 2 project concentrates on the efficient design of a miscible C0{sub 2} project based on detailed reservoir characterization from advanced petrophysics, 3- D seismic interpretations and cross wellbore tomography interpretations. During the quarter, the project area was expanded to include an area where the seismic attribute mapping indicated potential for step-out locations. Progress was made on interpreting the crosswell seismic data and the C0{sub 2} performance simulation was further improved. Construction of facilities required for C0{sub 2} injection were completed.

  10. Plasma Physics PART Al: INTRODUCTION TO PLASMA SCIENCE

    E-Print Network [OSTI]

    Chen, Francis F.

    PART A7: PLASMA DIAGNOSTICS X. Introduction 75 XI. Remote diagnostics 75 1. Optical spectroscopy 2 and rotational excitation IV. Heavy particle collisions 142 V. Gas phase kinetics 143 PART B5: PLASMA DIAGNOSTICSPlasma Physics PART Al: INTRODUCTION TO PLASMA SCIENCE I. What is a plasma? 1 II. Plasma

  11. Plasma-Therm Workshop: Fundamentals of Plasma Processing (Etching & Deposition)

    E-Print Network [OSTI]

    Martin, Jan M.L.

    The workshop will focus on the fundamentals of plasma etching and deposition. Lectures will includePlasma-Therm Workshop: Fundamentals of Plasma Processing (Etching & Deposition) Nanofabrication an introduction to vacuum technology, the basics of plasma and plasma reactors and an overview of mechanisms

  12. Princeton Plasma Physics Laboratory

    SciTech Connect (OSTI)

    Not Available

    1990-01-01T23:59:59.000Z

    This report discusses the following topics: principal parameters achieved in experimental devices fiscal year 1990; tokamak fusion test reactor; compact ignition tokamak; Princeton beta experiment- modification; current drive experiment-upgrade; international collaboration; x-ray laser studies; spacecraft glow experiment; plasma processing: deposition and etching of thin films; theoretical studies; tokamak modeling; international thermonuclear experimental reactor; engineering department; project planning and safety office; quality assurance and reliability; technology transfer; administrative operations; PPPL patent invention disclosures for fiscal year 1990; graduate education; plasma physics; graduate education: plasma science and technology; science education program; and Princeton Plasma Physics Laboratory reports fiscal year 1990.

  13. Michigan Institute Plasma Science

    E-Print Network [OSTI]

    Shyy, Wei

    Michigan Institute Plasma Science and Engineering Seminar Neutral Atom Imaging of the Terrestrial re- search includes ion heating in the solar corona, electric double layers, magne- tosphere neutral

  14. Michigan Institute for Plasma Sci-

    E-Print Network [OSTI]

    Shyy, Wei

    This talk will focus on the achievements of the Drexel Plasma Institute in direct application of plasmasMichigan Institute for Plasma Sci- ence and Engi- neering Seminar Plasma Medicine: Mechanisms of Direct Non-Thermal Plasma Interaction with Living Tissue Prof. Alexander Fridman Drexel University

  15. Measuring the plasma density of a ferroelectric plasma source in an expanding plasma

    E-Print Network [OSTI]

    Measuring the plasma density of a ferroelectric plasma source in an expanding plasma A. Dunaevsky and N. J. Fisch Princeton Plasma Physics Laboratory, Princeton University, P.O. Box 451, Princeton, New temperature at the surface of a ferroelectric plasma source were deduced from floating probe measurements

  16. High-Energy Plasma Fusion

    E-Print Network [OSTI]

    Guruangan, Karthik

    2014-01-01T23:59:59.000Z

    Simulations of Dense Plasma Focus Z-Pinch Devices.pdfSimulations of Dense-Plasma Focus Z-Pinch Device. Physicalplasmas and dense-plasma focus (DPF) Z-Pinch devices. DPF

  17. Plasma technology directory

    SciTech Connect (OSTI)

    Ward, P.P.; Dybwad, G.L.

    1995-03-01T23:59:59.000Z

    The Plasma Technology Directory has two main goals: (1) promote, coordinate, and share plasma technology experience and equipment within the Department of Energy; and (2) facilitate technology transfer to the commercial sector where appropriate. Personnel are averaged first by Laboratory and next by technology area. The technology areas are accelerators, cleaning and etching deposition, diagnostics, and modeling.

  18. Fundamentals of Plasma Physics

    E-Print Network [OSTI]

    Callen, James D.

    of students (from physics, engineering physics, elec- trical engineering, nuclear engineering and other un;PREFACE Plasma physics is a relatively new branch of physics that became a mature science over the last). Thus, plasma physics has developed in large part as a branch of applied or engineering physics

  19. Plasma Diagnostics and Plasma-Surface Interactions in Inductively Coupled Plasmas

    E-Print Network [OSTI]

    Titus, Monica Joy

    2010-01-01T23:59:59.000Z

    intensities for pure Ar plasmas focus on the dominant 104.8emitted from pure A r plasmas focus on the intensities ofdissertation work focuses on plasma and wafer diagnostics as

  20. Plasma sheath criterion in thermal electronegative plasmas

    SciTech Connect (OSTI)

    Ghomi, Hamid [Laser and Plasma Research Institute, Shahid Beheshti University, Evin 1983963113, Tehran (Iran, Islamic Republic of); Khoramabadi, Mansour; Ghorannevis, Mahmod [Plasma Physics Research Center, Science and Research Campus of Islamic Azad University, P.O. Box 14665-678, Tehran (Iran, Islamic Republic of); Shukla, Padma Kant [Institut fuer Theoretische Physik IV, Fakultaet fuer Physik und Astronomie, Ruhr-Universitaet Bochum, D-44780 Bochum (Germany)

    2010-09-15T23:59:59.000Z

    The sheath formation criterion in electronegative plasma is examined. By using a multifluid model, it is shown that in a collisional sheath there will be upper as well as lower limits for the sheath velocity criterion. However, the parameters of the negative ions only affect the lower limit.

  1. CHAPTER 1. COLLECTIVE PLASMA PHENOMENA 1 Collective Plasma

    E-Print Network [OSTI]

    Callen, James D.

    CHAPTER 1. COLLECTIVE PLASMA PHENOMENA 1 Chapter 1 Collective Plasma Phenomena The properties of a medium are determined by the microscopic processes in it. In a plasma the microscopic processes is actually limited to a distance of order the Debye length in a plasma. On length scales longer than

  2. Proposal for PLASMA LENS EXPERIMENT AT

    E-Print Network [OSTI]

    Proposal for PLASMA LENS EXPERIMENT AT THE FINAL FOCUS TEST BEAM April 1, 1997 THE PLASMA LENS.....................................................................................3 1.1 Plasma Focusing ......................................................................3 1.2 Previous Plasma Lens Experiments.................................................4 1.3 Plasma Lens

  3. The Statistical Upper Mantle Assemblage Anders Meibom*

    E-Print Network [OSTI]

    Anderson, Don L.

    Mantle Assemblage', which forms as the result of long-term plate tectonic recycling of sedimentary-3] and noble gases [4] has led to the notion that the source region for "normal" MORB (N-MORB), referred

  4. THE FEDERAL ENERGY ADMINISTRATION By Roger Anders

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

    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 Delicious Rank EERE:YearRound-Up from the GridwiseSiteDepartmentChallengeCompliance7/109 INSTITUTIONALFEDERAL

  5. PLASMA PHYSICS PPPL UC Davis

    E-Print Network [OSTI]

    PRINCETON PLASMA PHYSICS LABORATORY PPPL UC Davis PRINCETON PLASMA PHYSICS LABORATORY PPPL UC Davis Scattering System for ETG physics on NSTX H. Park, E. Mazzucato, and D. Smith PPPL, Princeton University C, 2006 Hyatt Regency, Dallas, TX #12;PRINCETON PLASMA PHYSICS LABORATORY PPPL UC Davis PRINCETON PLASMA

  6. Plasma-based accelerator structures

    SciTech Connect (OSTI)

    Schroeder, Carl B.

    1999-12-01T23:59:59.000Z

    Plasma-based accelerators have the ability to sustain extremely large accelerating gradients, with possible high-energy physics applications. This dissertation further develops the theory of plasma-based accelerators by addressing three topics: the performance of a hollow plasma channel as an accelerating structure, the generation of ultrashort electron bunches, and the propagation of laser pulses is underdense plasmas.

  7. Simulation of Fusion Plasmas

    ScienceCinema (OSTI)

    Chris Holland

    2010-01-08T23:59:59.000Z

    The upcoming ITER experiment (www.iter.org) represents the next major milestone in realizing the promise of using nuclear fusion as a commercial energy source, by moving into the ?burning plasma? regime where the dominant heat source is the internal fusion reactions. As part of its support for the ITER mission, the US fusion community is actively developing validated predictive models of the behavior of magnetically confined plasmas. In this talk, I will describe how the plasma community is using the latest high performance computing facilities to develop and refine our models of the nonlinear, multiscale plasma dynamics, and how recent advances in experimental diagnostics are allowing us to directly test and validate these models at an unprecedented level.

  8. 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...

  9. Induction plasma tube

    DOE Patents [OSTI]

    Hull, D.E.

    1982-07-02T23:59:59.000Z

    An induction plasma tube having a segmented, fluid-cooled internal radiation shield is disclosed. The individual segments are thick in cross-section such that the shield occupies a substantial fraction of the internal volume of the plasma enclosure, resulting in improved performance and higher sustainable plasma temperatures. The individual segments of the shield are preferably cooled by means of a counterflow fluid cooling system wherein each segment includes a central bore and a fluid supply tube extending into the bore. The counterflow cooling system results in improved cooling of the individual segments and also permits use of relatively larger shield segments which permit improved electromagnetic coupling between the induction coil and a plasma located inside the shield. Four embodiments of the invention, each having particular advantages, are disclosed.

  10. Induction plasma tube

    DOE Patents [OSTI]

    Hull, Donald E. (Los Alamos, NM)

    1984-01-01T23:59:59.000Z

    An induction plasma tube having a segmented, fluid-cooled internal radiation shield is disclosed. The individual segments are thick in cross-section such that the shield occupies a substantial fraction of the internal volume of the plasma enclosure, resulting in improved performance and higher sustainable plasma temperatures. The individual segments of the shield are preferably cooled by means of a counterflow fluid cooling system wherein each segment includes a central bore and a fluid supply tube extending into the bore. The counterflow cooling system results in improved cooling of the individual segments and also permits use of relatively larger shield segments which permit improved electromagnetic coupling between the induction coil and a plasma located inside the shield. Four embodiments of the invention, each having particular advantages, are disclosed.

  11. Electrostatics of moving plasma

    SciTech Connect (OSTI)

    Ignatov, A. M. [Russian Academy of Sciences, Prokhorov General Physics Institute (Russian Federation)] [Russian Academy of Sciences, Prokhorov General Physics Institute (Russian Federation)

    2013-07-15T23:59:59.000Z

    The stability of charge distribution over the surface of a conducting body in moving plasma is analyzed. Using a finite-width plate streamlined by a cold neutralized electron flow as an example, it is shown that an electrically neutral body can be unstable against the development of spontaneous polarization. The plasma parameters at which such instability takes place, as well as the frequency and growth rate of the fundamental mode of instability, are determined.

  12. I MORGEN KL. 12.00 BEGYNDER FORSKNINGENS DGN. UNIVERSITETER, VIRKSOMHEDER OG MANGE ANDRE ARRANGRER OVER HELE LANDET SLR DRENE OP TIL FORSG, DISKUSSIONER OG LABORATORIER. HR FORSKERNE FORTLLE I GGADER OG STRDER. ELLER DELTAG I DE MANGE ARRANGEMENTER OVER H

    E-Print Network [OSTI]

    Uggerhøj, Ulrik I.

    mediepartner ANNONCE / 5. MAJ - 6. MAJ 2006 ER DET FORSKNINGENS D�GN På sPoret af fremtiden Sponsor "Jeg vilI MORGEN KL. 12.00 BEGYNDER FORSKNINGENS D�GN. UNIVERSITETER, VIRKSOMHEDER OG MANGE ANDRE oplevelser" BENtE LiNDstrøM FORSKER I SENIORBOLIGER F� INSPIRATION OG INDBLIK I FORSKNINGENS VERDEN P� DE

  13. Plasma jet ignition device

    DOE Patents [OSTI]

    McIlwain, Michael E. (Franklin, MA); Grant, Jonathan F. (Wayland, MA); Golenko, Zsolt (North Reading, MA); Wittstein, Alan D. (Fairfield, CT)

    1985-01-15T23:59:59.000Z

    An ignition device of the plasma jet type is disclosed. The device has a cylindrical cavity formed in insulating material with an electrode at one end. The other end of the cylindrical cavity is closed by a metal plate with a small orifice in the center which plate serves as a second electrode. An arc jumping between the first electrode and the orifice plate causes the formation of a highly-ionized plasma in the cavity which is ejected through the orifice into the engine cylinder area to ignite the main fuel mixture. Two improvements are disclosed to enhance the operation of the device and the length of the plasma plume. One improvement is a metal hydride ring which is inserted in the cavity next to the first electrode. During operation, the high temperature in the cavity and the highly excited nature of the plasma breaks down the metal hydride, liberating hydrogen which acts as an additional fuel to help plasma formation. A second improvement consists of a cavity insert containing a plurality of spaced, metal rings. The rings act as secondary spark gap electrodes reducing the voltage needed to maintain the initial arc in the cavity.

  14. Charge Diagnostics for Laser Plasma Accelerators

    E-Print Network [OSTI]

    Nakamura, K.

    2011-01-01T23:59:59.000Z

    Laser plasma accelerator, charge diagnostics, Lanex, ICT,Charge Diagnostics for Laser Plasma Accelerators K .CHARGE DIAGNOSTICS CROSS-CALIBRATIONS WITH LASER PLASMA

  15. 2013 Plasma Camp | Princeton Plasma Physics Lab

    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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLasDelivered‰PNGExperience hands-onASTROPHYSICS H. I.Plasma Camp View larger image View

  16. 88th PSSL in Honour of Professors Martin Hyland and Peter Johnstone Friday 3rd April, 2009

    E-Print Network [OSTI]

    Cheng, Eugenia

    Peter Johnstone Dana Scott Anders Kock Sally Lowe John Coates Lori Colliander Valeria de Paiva Tom Christine Tasson Nicholas Duncan Daniela Petrian Andrea Schalk Francisco Lobo Jonas Frey Samuel Mimram Jeff John Power John Longley Marcelo Fiore Paul-André Melliès Bodil Biering Magdalena Kdziorek Glynn Winskel

  17. Nonequilibrium lighting plasmas

    SciTech Connect (OSTI)

    Dakin, J.T. (GE Lighting, Nela Park, Cleveland, OH (US))

    1991-12-01T23:59:59.000Z

    In this paper the science of a variety of devices employing nonequilibrium lighting plasmas is reviewed. The devices include the fluorescent lamp, the low-pressure sodium lamp, the neon sign, ultraviolet lamps, glow indicators, and a variety of devices used by spectroscopists, such as the hollow cathode light source. The plasma conditions in representative commercial devices are described. Recent research on the electron gas, the role of heavy particles, spatial and temporal inhomogeneities, and new electrodeless excitation schemes is reviewed. Areas of future activity are expected to be in new applications of high-frequency electronics to commercial devices, new laser-based diagnostics of plasma conditions, and more sophisticated models requiring more reliable and extensive rate coefficient data.

  18. Perturbations in a plasma

    E-Print Network [OSTI]

    Evangelos Chaliasos

    2005-10-20T23:59:59.000Z

    The perturbations of a homogeneous non-relativistic two-component plasma are studied in the Coulomb gauge. Starting from the solution found [2] of the equations of electromagnetic self consistency in a plasma [1], we add small perturbations to all quantities involved, and we enter the perturbed quantities in the equations, keeping only the first order terms in the perturbations. Because the unperturbed quantities are solutions of the equations, they cancel each other, and we are left with a set of 12 linear equations for the 12 perturbations (unknown quantities). Then we solve this set of linearized equations, in the approximation of small ratio of the masses of electrons over those of ions, and under the assumption that the plasma remains homogeneous.

  19. Plasma Simulation Program

    SciTech Connect (OSTI)

    Greenwald, Martin

    2011-10-04T23:59:59.000Z

    Many others in the fusion energy and advanced scientific computing communities participated in the development of this plan. The core planning team is grateful for their important contributions. This summary is meant as a quick overview the Fusion Simulation Program's (FSP's) purpose and intentions. There are several additional documents referenced within this one and all are supplemental or flow down from this Program Plan. The overall science goal of the DOE Office of Fusion Energy Sciences (FES) Fusion Simulation Program (FSP) is to develop predictive simulation capability for magnetically confined fusion plasmas at an unprecedented level of integration and fidelity. This will directly support and enable effective U.S. participation in International Thermonuclear Experimental Reactor (ITER) research and the overall mission of delivering practical fusion energy. The FSP will address a rich set of scientific issues together with experimental programs, producing validated integrated physics results. This is very well aligned with the mission of the ITER Organization to coordinate with its members the integrated modeling and control of fusion plasmas, including benchmarking and validation activities. [1]. Initial FSP research will focus on two critical Integrated Science Application (ISA) areas: ISA1, the plasma edge; and ISA2, whole device modeling (WDM) including disruption avoidance. The first of these problems involves the narrow plasma boundary layer and its complex interactions with the plasma core and the surrounding material wall. The second requires development of a computationally tractable, but comprehensive model that describes all equilibrium and dynamic processes at a sufficient level of detail to provide useful prediction of the temporal evolution of fusion plasma experiments. The initial driver for the whole device model will be prediction and avoidance of discharge-terminating disruptions, especially at high performance, which are a critical impediment to successful operation of machines like ITER. If disruptions prove unable to be avoided, their associated dynamics and effects will be addressed in the next phase of the FSP.

  20. QED Plasma and Magnetars

    E-Print Network [OSTI]

    Freytsis, Marat

    2015-01-01T23:59:59.000Z

    Magnetars are surrounded by diffuse plasma in magnetic field strengths well above the quantum electrodynamic critical value. We derive equations of "quantum force-free electrodynamics" for this plasma using an effective field theory arguments. We argue that quantum effects do not modify the large scale structure of the magnetosphere, and in particular that the spin-down rate does not deviate significantly from the classical result. We provide definite evolution equations that can be used to explore potentially important small-scale corrections, such as shock formation, which has been proposed as a mechanism for both burst and quiescent emission from magnetars.

  1. Plasma abatement of perfluorocompounds in inductively coupled plasma reactors

    E-Print Network [OSTI]

    Kushner, Mark

    Plasma abatement of perfluorocompounds in inductively coupled plasma reactors Xudong ``Peter'' Xu burn-boxes located downstream of the plasma chamber has been proposed as a method for abating PFC emissions with the goals of reducing the cost of PFC abatement and avoiding the NOx formation usually found

  2. Recent results for plasma antennas

    SciTech Connect (OSTI)

    Alexeff, Igor; Anderson, Ted; Farshi, Esmaeil; Karnam, Naresh; Pulasani, Nanditha Reddy [Department of Electrical Engineering, University of Tennessee, Knoxville, Tennessee 37996 (United States)

    2008-05-15T23:59:59.000Z

    Plasma antennas are just as effective as metal antennas. They can transmit, receive, and reflect radio waves just as well as metal antennas. In addition, plasma generated noise does not appear to be a problem.

  3. Fusion Plasmas Martin Greenwald

    E-Print Network [OSTI]

    Greenwald, Martin

    . Despite the cold war, which raged for another 30 years, controlled fusion research became a modelFusion Plasmas Martin Greenwald Encyclopedia of Electrical and Electronic Engineering, John Webster - editor, published by John Wiley & Sons, New York (1999) #12;Controlled Fusion For half a century

  4. Stirring Strongly Coupled Plasma

    E-Print Network [OSTI]

    Fadafan, Kazem Bitaghsir

    We determine the energy it takes to move a test quark along a circle of radius L with angular frequency ? through the strongly coupled plasma of $\\mathcal{N}=4$ supersymmetric Yang–Mills (SYM) theory. We find that for most ...

  5. Reprint from "PLASMA PHYSICS

    E-Print Network [OSTI]

    Karney, Charles

    ATOMIC ENERGY AGENCY VIENNA, 1983 Link: http://charles.karney.info/biblio/white83.html #12;CONFINEMENTIN. ALBERT, C.F.F. KARNEY Plasma Physics Laboratory, Princeton University, Princeton, New Jersey, United motion. Of course a stochastic field has no such coordinates, but the systems of interest for confinement

  6. Dissipation in intercluster plasma

    E-Print Network [OSTI]

    Maxim Lyutikov

    2007-09-11T23:59:59.000Z

    We discuss dissipative processes in strongly gyrotropic, nearly collisionless plasma in clusters of galaxies (ICM). First, we point out that Braginsky theory, which assumes that collisions are more frequent that the system's dynamical time scale, is inapplicable to fast, sub-viscous ICM motion. Most importantly, the electron contribution to collisional magneto-viscosity dominates over that of ions for short-scale Alfvenic motions. Thus, if a turbulent cascade develops in the ICM and propagates down to scales $\\leq 1$ kpc, it is damped collisionally not on ions, but on electrons. Second, in high beta plasma of ICM, small variations of the magnetic field strength, of relative value $\\sim 1/\\beta$, lead to development of anisotropic pressure instabilities (firehose, mirror and cyclotron). Unstable wave modes may provide additional resonant scattering of particles, effectively keeping the plasma in a state of marginal stability. We show that in this case the dissipation rate of a laminar, subsonic, incompressible flows scales as inverse of plasma beta parameter. We discuss application to the problem of ICM heating.

  7. Michigan Institute for Plasma Sci-

    E-Print Network [OSTI]

    Shyy, Wei

    Michigan Institute for Plasma Sci- ence and Engi- neering Seminar Turbulent Plasmas in Astrophysics of turbulent fluc- tuations in the solar wind. While magnetohydrodynamics remains the appro- priate theory the labora- tory, to study naturally turbulent plasmas such as the solar wind and in more distant

  8. Controlled zone microwave plasma system

    DOE Patents [OSTI]

    Ripley, Edward B. (Knoxville, TN); Seals, Roland D. (Oak Ridge, TN); Morrell, Jonathan S. (Knoxville, TN)

    2009-10-20T23:59:59.000Z

    An apparatus and method for initiating a process gas plasma. A conductive plate having a plurality of conductive fingers is positioned in a microwave applicator. An arc forms between the conductive fingers to initiate the formation of a plasma. A transport mechanism may convey process materials through the plasma. A spray port may be provided to expel processed materials.

  9. Instabilities and pattern formation in lowtemperature plasmas

    E-Print Network [OSTI]

    of the plasma region is approximately 20cm. (Produced by the Plasma Research Laboratory, Dublin City University

  10. On description of quantum plasma

    E-Print Network [OSTI]

    S. V. Vladimirov; Yu. O. Tyshetskiy

    2011-01-21T23:59:59.000Z

    A plasma becomes quantum when the quantum nature of its particles significantly affects its macroscopic properties. To answer the question of when the collective quantum plasma effects are important, a proper description of such effects is necessary. We consider here the most common methods of description of quantum plasma, along with the related assumptions and applicability limits. In particular, we analyze in detail the hydrodynamic description of quantum plasma, as well as discuss some kinetic features of analytic properties of linear dielectric response function in quantum plasma. We point out the most important, in our view, fundamental problems occurring already in the linear approximation and requiring further investigation. (submitted to Physics-Uspekhi)

  11. Princeton Plasma Physics Laboratory:

    SciTech Connect (OSTI)

    Phillips, C.A. (ed.)

    1986-01-01T23:59:59.000Z

    This paper discusses progress on experiments at the Princeton Plasma Physics Laboratory. The projects and areas discussed are: Principal Parameters Achieved in Experimental Devices, Tokamak Fusion Test Reactor, Princeton Large Torus, Princeton Beta Experiment, S-1 Spheromak, Current-Drive Experiment, X-ray Laser Studies, Theoretical Division, Tokamak Modeling, Spacecraft Glow Experiment, Compact Ignition Tokamak, Engineering Department, Project Planning and Safety Office, Quality Assurance and Reliability, and Administrative Operations.

  12. BNL | ATF Plasma Diagnostics

    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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-Series to someone byDearTechnicalAwardssupportsBESElectron-plasma

  13. Laser Plasma Interactions

    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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-SeriesFlickrinformationPostdocs space CombinedValuesRevolutionizingLaser Plasma

  14. Andr Laperrire Laboratoire des technologies

    E-Print Network [OSTI]

    California at Davis, University of

    , meal cooking,...) Probably not critical for an Indoor Hockey Ice Rink #12;Groupe ­ Technologie9 PERIODAndré Laperrière Laboratoire des technologies de l'énergie d'Hydro-Québec Shawinigan Indoor Ice Rinks and LED Technology 2013 Biannual Joint Meeting of CIE/USA and CNC/CIE University of California (UC

  15. Flood events Dr. Andre Paquier

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    for Developing Countries due to Climate Change, Kyoto, Japan, March 2011 hal-00593481,version1-16May2011 Author be influenced by climate change or more directly by other anthropogenic changes. Some parameters control the quantity of water provided to hydrographical network. They can be linked with climate change: rainfall

  16. Transport in a field aligned magnetized plasma/neutral gas boundary: the end of the plasma

    E-Print Network [OSTI]

    Cooper, Christopher M.

    2012-01-01T23:59:59.000Z

    in millimeter wave plasma diagnostics with applications toI. (2002). Principles of Plasma Diagnostics. Janev, R. K. (probe . . . as a diagnostic for exploding plasmas. (43), 1–

  17. DEVELOPMENT OF WATER JET PLASMA MIRROR FOR STAGING OF LASER PLASMA ACCELERATORS

    E-Print Network [OSTI]

    Panasenko, Dmitriy

    2010-01-01T23:59:59.000Z

    STAGING OF LASER PLASMA ACCELERATORS ? Dmitriy Panasenko,Staging Laser Plasma Accelerators (LPAs) is necessary in4]. INTRODUCTION Laser Plasma Accelerators (LPAs) have now

  18. Plasma generating apparatus for large area plasma processing

    DOE Patents [OSTI]

    Tsai, C.C.; Gorbatkin, S.M.; Berry, L.A.

    1991-07-16T23:59:59.000Z

    A plasma generating apparatus for plasma processing applications is based on a permanent magnet line-cusp plasma confinement chamber coupled to a compact single-coil microwave waveguide launcher. The device creates an electron cyclotron resonance (ECR) plasma in the launcher and a second ECR plasma is created in the line cusps due to a 0.0875 tesla magnetic field in that region. Additional special magnetic field configuring reduces the magnetic field at the substrate to below 0.001 tesla. The resulting plasma source is capable of producing large-area (20-cm diam), highly uniform (.+-.5%) ion beams with current densities above 5 mA/cm[sup 2]. The source has been used to etch photoresist on 5-inch diam silicon wafers with good uniformity. 3 figures.

  19. Plasma generating apparatus for large area plasma processing

    DOE Patents [OSTI]

    Tsai, Chin-Chi (Oak Ridge, TN); Gorbatkin, Steven M. (Oak Ridge, TN); Berry, Lee A. (Oak Ridge, TN)

    1991-01-01T23:59:59.000Z

    A plasma generating apparatus for plasma processing applications is based on a permanent magnet line-cusp plasma confinement chamber coupled to a compact single-coil microwave waveguide launcher. The device creates an electron cyclotron resonance (ECR) plasma in the launcher and a second ECR plasma is created in the line cusps due to a 0.0875 tesla magnetic field in that region. Additional special magnetic field configuring reduces the magnetic field at the substrate to below 0.001 tesla. The resulting plasma source is capable of producing large-area (20-cm diam), highly uniform (.+-.5%) ion beams with current densities above 5 mA/cm.sup.2. The source has been used to etch photoresist on 5-inch diam silicon wafers with good uniformity.

  20. Towards Plasma Surgery: Plasma Treatment of Living Cells

    SciTech Connect (OSTI)

    Stoffels, E.; Kieft, I.E.; Sladek, R.E.J.; Slaaf, D.W.; Laan, E.P. van der; Jimenez-Moreno, P.; Steinbuch, M. [Department of Biomedical Engineering, Eindhoven University of Technology, PO Box 513, 5600 MB, Eindhoven (Netherlands); Department of Mechanical Engineering, Eindhoven University of Technology, PO Box 513, 5600 MB, Eindhoven (Netherlands)

    2004-12-01T23:59:59.000Z

    The physical, biological and technical background for high-precision plasma surgery is prepared in a multi-disciplinary team. The aim of the research is to achieve controlled removal of diseased cells and bacteria without harming the healthy rest of the tissue. For this purpose, a small, cold, flexible and non-toxic plasma is developed (the plasma needle) and tested on cultured cells and bacterial samples. The needle is an atmospheric discharge induced by a radio-frequency voltage applied to a metal pin. This plasma operates at room temperature, in the milliwatt power regime; it poses no risk of thermal or electrical damage to living tissues. Several beneficial responses of living cells to plasma treatment have been already identified. Plasma does not cause accidental cell death (necrosis), which leads to inflammation and tissue damage. Instead, it allows to detach cells from each other and from the scaffold, and thus to remove them in a non-destructive way. Moreover, plasma is capable of bacterial inactivation. I parallel, we have determined the electrical and optical properties of the plasma and found a method of precise positioning of the plasma needle with respect to the treated tissue.

  1. Coulomb scattering in plasma revised

    E-Print Network [OSTI]

    S. Gordienko; D. V. Fisher; J. Meyer-ter-Vehn

    2003-05-13T23:59:59.000Z

    A closed expression for the momentum evolution of a test particle in weakly-coupled plasma is derived, starting from quantum many particle theory. The particle scatters from charge fluctuations in the plasma rather than in a sequence of independent binary collisions. Contrary to general belief, Bohr's (rather than Bethe's) Coulomb logarithm is the relevant one in most plasma applications. A power-law tail in the distribution function is confirmed by molecular dynamics simulation.

  2. Laser plasma accelerators

    SciTech Connect (OSTI)

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

    2012-05-15T23:59:59.000Z

    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.

  3. Plasma Sources Sci. Technol.

    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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 - September 2006Photovoltaic Theory and ModelingPinkandUniversal"Plasma

  4. Purification of tantalum by plasma arc melting

    DOE Patents [OSTI]

    Dunn, Paul S. (Santa Fe, NM); Korzekwa, Deniece R. (Los Alamos, NM)

    1999-01-01T23:59:59.000Z

    Purification of tantalum by plasma arc melting. The level of oxygen and carbon impurities in tantalum was reduced by plasma arc melting the tantalum using a flowing plasma gas generated from a gas mixture of helium and hydrogen. The flowing plasma gases of the present invention were found to be superior to other known flowing plasma gases used for this purpose.

  5. Plasma Materials Interaction Issues For Burning Plasma Experiments

    E-Print Network [OSTI]

    ­ Resistance to neutron damage #12;MAU 5 11/15/2001 The FIRE Burning Plasma Device · A compact high field surface sees high density and temperature plasma · Key issues are hydrogen trapping, erosion, and thermal trapping and release, surface segregation · Materials science for nuclear radiation damage, thermal fatigue

  6. Analysis of plasma waves observed within local plasma injections seen in Saturn's magnetosphere

    E-Print Network [OSTI]

    Gurnett, Donald A.

    Analysis of plasma waves observed within local plasma injections seen in Saturn's magnetosphere J; published 17 May 2008. [1] Plasma injections or density depletion regions have been reported plasma in a cooler, locally produced plasma background. The injected plasma undergoes dispersion

  7. A dusty plasma device for producing extended, steady state, magnetized, dusty plasma columns

    E-Print Network [OSTI]

    Merlino, Robert L.

    A dusty plasma device for producing extended, steady state, magnetized, dusty plasma columns Wenjun with an existing Q machine, to produce extended, steady state, magnetized plasma columns. The dusty plasma device (DPD) is to be used for the investigation of waves in dusty plasmas and of other plasma/dust aspects

  8. Ion plasma wave and its instability in interpenetrating plasmas

    SciTech Connect (OSTI)

    Vranjes, J., E-mail: jvranjes@yahoo.com [Institute of Physics Belgrade, Pregrevica 118, 11080 Zemun (Serbia); Kono, M., E-mail: kono@fps.chuo-u.ac.jp [Faculty of Policy Studies, Chuo University, Tokyo (Japan)

    2014-04-15T23:59:59.000Z

    Some essential features of the ion plasma wave in both kinetic and fluid descriptions are presented. The wave develops at wavelengths shorter than the electron Debye radius. Thermal motion of electrons at this scale is such that they overshoot the electrostatic potential perturbation caused by ion bunching, which consequently propagates as an unshielded wave, completely unaffected by electron dynamics. So in the simplest fluid description, the electrons can be taken as a fixed background. However, in the presence of magnetic field and for the electron gyro-radius shorter than the Debye radius, electrons can participate in the wave and can increase its damping rate. This is determined by the ratio of the electron gyro-radius and the Debye radius. In interpenetrating plasmas (when one plasma drifts through another), the ion plasma wave can easily become growing and this growth rate is quantitatively presented for the case of an argon plasma.

  9. Laser Plasma Material Interactions

    SciTech Connect (OSTI)

    Schaaf, Peter; Carpene, Ettore [Universitaet Goettingen, II. Physikalisches Institut, Friedrich-Hund-Platz 1, 37077 Goettingen (Germany)

    2004-12-01T23:59:59.000Z

    Surface treatment by means of pulsed laser beams in reactive atmospheres is an attractive technique to enhance the surface features, such as corrosion and wear resistance or the hardness. Many carbides and nitrides play an important role for technological applications, requiring the mentioned property improvements. Here we present a new promising fast, flexible and clean technique for a direct laser synthesis of carbide and nitride surface films by short pulsed laser irradiation in reactive atmospheres (e.g. methane, nitrogen). The corresponding material is treated by short intense laser pulses involving plasma formation just above the irradiated surface. Gas-Plasma-Surface reactions lead to a fast incorporation of the gas species into the material and subsequently the desired coating formation if the treatment parameters are chosen properly. A number of laser types have been used for that (Excimer Laser, Nd:YAG, Ti:sapphire, Free Electron Laser) and a number of different nitride and carbide films have been successfully produced. The mechanisms and some examples will be presented for Fe treated in nitrogen and Si irradiated in methane.

  10. Steady state compact toroidal plasma production

    DOE Patents [OSTI]

    Turner, W.C.

    1983-05-17T23:59:59.000Z

    This invention relates to the confinement of field reversed plasma rings and, more particularly, to the steady state maintainance of field reversed plasma rings produced by coaxial plasma guns.

  11. Resonant-cavity antenna for plasma heating

    DOE Patents [OSTI]

    Perkins, F.W. Jr.; Chiu, S.C.; Parks, P.; Rawls, J.M.

    1984-01-10T23:59:59.000Z

    This invention relates generally to a method and apparatus for transferring energy to a plasma immersed in a magnetic field, and relates particularly to an apparatus for heating a plasma of low atomic number ions to high temperatures by transfer of energy to plasma resonances, particularly the fundamental and harmonics of the ion cyclotron frequency of the plasma ions. This invention transfers energy from an oscillating radio-frequency field to a plasma resonance of a plasma immersed in a magnetic field.

  12. Filters for cathodic arc plasmas

    DOE Patents [OSTI]

    Anders, Andre (Albany, CA); MacGill, Robert A. (Richmond, CA); Bilek, Marcela M. M. (Engadine, AU); Brown, Ian G. (Berkeley, CA)

    2002-01-01T23:59:59.000Z

    Cathodic arc plasmas are contaminated with macroparticles. A variety of magnetic plasma filters has been used with various success in removing the macroparticles from the plasma. An open-architecture, bent solenoid filter, with additional field coils at the filter entrance and exit, improves macroparticle filtering. In particular, a double-bent filter that is twisted out of plane forms a very compact and efficient filter. The coil turns further have a flat cross-section to promote macroparticle reflection out of the filter volume. An output conditioning system formed of an expander coil, a straightener coil, and a homogenizer, may be used with the magnetic filter for expanding the filtered plasma beam to cover a larger area of the target. A cathodic arc plasma deposition system using this filter can be used for the deposition of ultrathin amorphous hard carbon (a-C) films for the magnetic storage industry.

  13. Quantitative proteomics analysis of adsorbed plasma proteins...

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

    proteomics analysis of adsorbed plasma proteins classifies nanoparticles with different surface properties and size Quantitative proteomics analysis of adsorbed plasma proteins...

  14. Method & apparatus for monitoring plasma processing operations

    DOE Patents [OSTI]

    Smith Jr., Michael Lane; Ward, Pamela Denise; Stevenson, Joel O'Don

    2004-10-19T23:59:59.000Z

    The invention generally relates to various aspects of a plasma process and, more specifically, to the monitoring of such plasma processes. One aspect relates to a plasma monitoring module that may be adjusted in at least some manner so as to re-evaluate a previously monitored plasma process. For instance, optical emissions data on a plasma process that was previously monitored by the plasma monitoring module may be replayed through the plasma monitoring module after making at least one adjustment in relation to the plasma monitoring module.

  15. Meter scale plasma source for plasma wakefield experiments

    SciTech Connect (OSTI)

    Vafaei-Najafabadi, N.; Shaw, J. L.; Marsh, K. A.; Joshi, C.; Hogan, M. J. [Department of Electrical Engineering, University of California Los Angeles, Los Angeles, CA 90095 (United States); SLAC National Accelerator Laboratory, Menlo Park, CA 94025 (United States)

    2012-12-21T23:59:59.000Z

    High accelerating gradients generated by a high density electron beam moving through plasma has been used to double the energy of the SLAC electron beam [1]. During that experiment, the electron current density was high enough to generate its own plasma without significant head erosion. In the newly commissioned FACET facility at SLAC, the peak current will be lower and without pre-ionization, head erosion will be a significant challenge for the planned experiments. In this work we report on our design of a meter scale plasma source for these experiments to effectively avoid the problem of head erosion. The plasma source is based on a homogeneous metal vapor gas column that is generated in a heat pipe oven [2]. A lithium oven over 30 cm long at densities over 10{sup 17} cm{sup -3} has been constructed and tested at UCLA. The plasma is then generated by coupling a 10 TW short pulse Ti:Sapphire laser into the gas column using an axicon lens setup. The Bessel profile of the axicon setup creates a region of high intensity that can stretch over the full length of the gas column with approximately constant diameter. In this region of high intensity, the alkali metal vapor is ionized through multi-photon ionization process. In this manner, a fully ionized meter scale plasma of uniform density can be formed. Methods for controlling the plasma diameter and length will also be discussed.

  16. Plasma Nanoscience: from Nano-Solids in Plasmas to Nano-Plasmas in Solids

    E-Print Network [OSTI]

    Ostrikov, K; Meyyappan, M

    2013-01-01T23:59:59.000Z

    The unique plasma-specific features and physical phenomena in the organization of nanoscale solid-state systems in a broad range of elemental composition, structure, and dimensionality are critically reviewed. These effects lead to the possibility to localize and control energy and matter at nanoscales and to produce self-organized nano-solids with highly unusual and superior properties. A unifying conceptual framework based on the control of production, transport, and self-organization of precursor species is introduced and a variety of plasma-specific non-equilibrium and kinetics-driven phenomena across the many temporal and spatial scales is explained. When the plasma is localized to micrometer and nanometer dimensions, new emergent phenomena arise. The examples range from semiconducting quantum dots and nanowires, chirality control of single-walled carbon nanotubes, ultra-fine manipulation of graphenes, nano-diamond, and organic matter, to nano-plasma effects and nano-plasmas of different states of matter...

  17. A PLASMA CHANNEL BEAM CONDITIONER FOR A FREE ELECTRON LASER

    E-Print Network [OSTI]

    Wurtele, Jonathan

    plasma focusing and plasma accel- eration, but further beam compression is not required. The resulting

  18. Propagation of an atmospheric pressure plasma plume

    SciTech Connect (OSTI)

    Lu, X.; Xiong, Q.; Xiong, Z.; Hu, J.; Zhou, F.; Gong, W.; Xian, Y.; Zou, C.; Tang, Z.; Jiang, Z.; Pan, Y. [College of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074 (China)

    2009-02-15T23:59:59.000Z

    The ''plasma bullet'' behavior of atmospheric pressure plasma plumes has recently attracted significant interest. In this paper, a specially designed plasma jet device is used to study this phenomenon. It is found that a helium primary plasma can propagate through the wall of a dielectric tube and keep propagating inside the dielectric tube (secondary plasma). High-speed photographs show that the primary plasma disappears before the secondary plasma starts to propagate. Both plumes propagate at a hypersonic speed. Detailed studies on the dynamics of the plasma plumes show that the local electric field induced by the charges on the surface of the dielectric tube plays an important role in the ignition of the secondary plasma. This indicates that the propagation of the plasma plumes may be attributed to the local electric field induced by the charges in the bulletlike plasma volume.

  19. Liquid injection plasma deposition method and apparatus

    DOE Patents [OSTI]

    Kong, Peter C. (Idaho Falls, ID); Watkins, Arthur D. (Idaho Falls, ID)

    1999-01-01T23:59:59.000Z

    A liquid injection plasma torch deposition apparatus for depositing material onto a surface of a substrate may comprise a plasma torch for producing a jet of plasma from an outlet nozzle. A plasma confinement tube having an inlet end and an outlet end and a central bore therethrough is aligned with the outlet nozzle of the plasma torch so that the plasma jet is directed into the inlet end of the plasma confinement tube and emerges from the outlet end of the plasma confinement tube. The plasma confinement tube also includes an injection port transverse to the central bore. A liquid injection device connected to the injection port of the plasma confinement tube injects a liquid reactant mixture containing the material to be deposited onto the surface of the substrate through the injection port and into the central bore of the plasma confinement tube.

  20. Atmospheric-pressure plasma jet

    DOE Patents [OSTI]

    Selwyn, Gary S. (Los Alamos, NM)

    1999-01-01T23:59:59.000Z

    Atmospheric-pressure plasma jet. A .gamma.-mode, resonant-cavity plasma discharge that can be operated at atmospheric pressure and near room temperature using 13.56 MHz rf power is described. Unlike plasma torches, the discharge produces a gas-phase effluent no hotter than 250.degree. C. at an applied power of about 300 W, and shows distinct non-thermal characteristics. In the simplest design, two concentric cylindrical electrodes are employed to generate a plasma in the annular region therebetween. A "jet" of long-lived metastable and reactive species that are capable of rapidly cleaning or etching metals and other materials is generated which extends up to 8 in. beyond the open end of the electrodes. Films and coatings may also be removed by these species. Arcing is prevented in the apparatus by using gas mixtures containing He, which limits ionization, by using high flow velocities, and by properly shaping the rf-powered electrode. Because of the atmospheric pressure operation, no ions survive for a sufficiently long distance beyond the active plasma discharge to bombard a workpiece, unlike low-pressure plasma sources and conventional plasma processing methods.

  1. Plasma Chemistry and Plasma Processing, Vol. 23, No. 3, September 2003 ( 2003) Ozone Production in the Negative DC Corona

    E-Print Network [OSTI]

    Chen, Junhong

    : Corona discharge; corona plasma; plasma reacting flow; ozone; electrostatic precipitator; Damkohler

  2. Plasma Chemistry and Plasma Processing, Vol. 12, No.4, 1992 Infrared Radiation from an Arc Plasma and Its

    E-Print Network [OSTI]

    Eagar, Thomas W.

    Plasma and Its Application to Plasma Diagnostics Takayoshi Ohji1 and Thomas W. Eagar Received May 16 ifinfraredradiation from an arc plasma can fie used for diagnostic purposes. Tire properties of IR radiation to be solved in arc plasma diagnostics. For example, the spectro- s~opic method, while powerful, requires

  3. TWO DIMENSIONAL COMPUTER SIMULATION OF PLASMA IMMERSION

    E-Print Network [OSTI]

    . Barroso and M. Ueda Associated Laboratory of Plasma - LAP National Institute for Space Research - INPE #12

  4. Thermal plasma chemical synthesis of powders

    SciTech Connect (OSTI)

    Vogt, G.J.; Newkirk, L.R.

    1985-01-01T23:59:59.000Z

    Thermal plasma processing has been increasingly used to synthesize submicron powders of high-purity ceramics and metals. The high temperatures generated with the plasma provide a vapor phase reaction zone for elements with high boiling points and refractory materials. An overview is presented on the general plasma technology used in synthesis and on the properties of plasma powders.

  5. MIT Lincoln Laboratory Plasma and Ions-1

    E-Print Network [OSTI]

    Wurtman, Richard

    them anions · Fire, lightning, fluorescent lamps, and the Sun and stars all contain plasma ­ In fact include fluorescent lamps, neon signs, plasma globes, plasma TVs ­ They easily form at room temperature lightning carbon arc nuclear blast #12;MIT Lincoln LaboratoryPlasma and Ions-4 A. Siegel 5/12/07 How Does

  6. Mobile inductively coupled plasma system

    DOE Patents [OSTI]

    D'Silva, Arthur P. (Ames, IA); Jaselskis, Edward J. (Ames, IA)

    1999-03-30T23:59:59.000Z

    A system for sampling and analyzing a material located at a hazardous site. A laser located remote from the hazardous site is connected to an optical fiber, which directs laser radiation proximate the material at the hazardous site. The laser radiation abates a sample of the material. An inductively coupled plasma is located remotely from the material. An aerosol transport system carries the ablated particles to a plasma, where they are dissociated, atomized and excited to provide characteristic optical reduction of the elemental constituents of the sample. An optical spectrometer is located remotely from the site. A second optical fiber is connected to the optical spectrometer at one end and the plasma source at the other end to carry the optical radiation from the plasma source to the spectrometer.

  7. Mobile inductively coupled plasma system

    DOE Patents [OSTI]

    D`Silva, A.P.; Jaselskis, E.J.

    1999-03-30T23:59:59.000Z

    A system is described for sampling and analyzing a material located at a hazardous site. A laser located remotely from the hazardous site is connected to an optical fiber, which directs laser radiation proximate the material at the hazardous site. The laser radiation abates a sample of the material. An inductively coupled plasma is located remotely from the material. An aerosol transport system carries the ablated particles to a plasma, where they are dissociated, atomized and excited to provide characteristic optical reduction of the elemental constituents of the sample. An optical spectrometer is located remotely from the site. A second optical fiber is connected to the optical spectrometer at one end and the plasma source at the other end to carry the optical radiation from the plasma source to the spectrometer. 10 figs.

  8. Atomic phenomena in dense plasmas

    SciTech Connect (OSTI)

    Weisheit, J.C.

    1981-03-01T23:59:59.000Z

    The following chapters are included: (1) the plasma environment, (2) perturbations of atomic structure, (3) perturbations of atomic collisions, (4) formation of spectral lines, and (5) dielectronic recombination. (MOW)

  9. Layered plasma polymer composite membranes

    DOE Patents [OSTI]

    Babcock, W.C.

    1994-10-11T23:59:59.000Z

    Layered plasma polymer composite fluid separation membranes are disclosed, which comprise alternating selective and permeable layers for a total of at least 2n layers, where n is [>=]2 and is the number of selective layers. 2 figs.

  10. Quark-gluon plasma paradox

    E-Print Network [OSTI]

    Dariusz Miskowiec

    2007-07-06T23:59:59.000Z

    Based on simple physics arguments it is shown that the concept of quark-gluon plasma, a state of matter consisting of uncorrelated quarks, antiquarks, and gluons, has a fundamental problem.

  11. RF laser plasma measurements

    SciTech Connect (OSTI)

    Bollen, W.M.

    1984-08-01T23:59:59.000Z

    One of the major difficulties with excimer lasers has been the presence of impurities, introduced, for example, by the electrodes present in the D.C. discharge approach. Use of microwave excitation makes possible an electrodeless discharge, thereby reducing the risk of introducing impurities into the laser mix. In this approach a tube containing the laser mix is inserted in a waveguide or microwave cavity; the microwaves then break down the laser mix to form a discharge and further interact to heat that discharge. In such microwave discharges, strong fluorescence seems limited to approximately 100 ns. In the same time frame, the fluorescence has also been observed to collapse to the wall. The wall collapse may be related to the reduced fluorescence (reduced radiation area), although burn-up of the lasing components seems more likely. The collapse to the wall reduces the ability to lase by decreasing the active volume. A better understanding of this effect needs to be obtained before a microwave-driven laser can be further developed. This research effort was directed towards obtaining a fundamental understanding of the collapse of the fluorescence to the tube walls. The ultimate goal is to understand the collapse sufficiently to prevent or reduce its effects; to this end, a number of basic plasma physics experiments have been carried out. A complete understanding has not yet been reached.

  12. Experimental Investigation of Non-Thermal Electric Fields and Plasma Waves in Pulsed-Power Plasmas

    E-Print Network [OSTI]

    -field-plasma interaction, particle accelera- tion, growth of instabilities and plasma waves. As yet, to the hest of our and the properties of plasmas under high-power pulses at the nanosecond time scale. The method is based on resonant in a coaxial-pulsed-plasma configura- tion. The plasma is doped with a laser-produced lithium heam, fol- lowed

  13. Penetration of plasma into the wafer-focus ring gap in capacitively coupled plasmas

    E-Print Network [OSTI]

    Kushner, Mark

    Penetration of plasma into the wafer-focus ring gap in capacitively coupled plasmas Natalia Y of capacitively coupled plasma reactors with a wafer-focus ring gap. The penetration of plasma generated species i.e., ions and radicals into the wafer-focus ring gap is discussed. We found that the penetration of plasma

  14. Nonlinear plasma waves excitation by intense ion beams in background plasma

    E-Print Network [OSTI]

    Kaganovich, Igor

    describe the plasma perturbations well.5 Here, we focus on the general case where the plasma density hasNonlinear plasma waves excitation by intense ion beams in background plasma Igor D. Kaganovich, Edward A. Startsev, and Ronald C. Davidson Plasma Physics Laboratory, Princeton University, Princeton

  15. CHAPTER 5. PLASMA DESCRIPTIONS I: KINETIC, TWO-FLUID 1 Plasma Descriptions I

    E-Print Network [OSTI]

    Callen, James D.

    CHAPTER 5. PLASMA DESCRIPTIONS I: KINETIC, TWO-FLUID 1 Chapter 5 Plasma Descriptions I: Kinetic, Two-Fluid Descriptions of plasmas are obtained from extensions of the kinetic theory of gases of charged particles in the plasma, and because the electric and magnetic fields in the plasma must

  16. Phys780: Basic Plasma Physics 1 PHYS 780. Basic Plasma Physics

    E-Print Network [OSTI]

    Phys780: Basic Plasma Physics 1 PHYS 780. Basic Plasma Physics Course objective The course objective is to introduce students to basic concepts of plasma physics and magneto-hydrodynamics with applications to solar-terrestrial physics. The course topics include: plasma classification, basic plasma prop

  17. Transport equations in tokamak plasmas

    SciTech Connect (OSTI)

    Callen, J. D.; Hegna, C. C.; Cole, A. J. [University of Wisconsin, Madison, Wisconsin 53706-1609 (United States)

    2010-05-15T23:59:59.000Z

    Tokamak plasma transport equations are usually obtained by flux surface averaging the collisional Braginskii equations. However, tokamak plasmas are not in collisional regimes. Also, ad hoc terms are added for neoclassical effects on the parallel Ohm's law, fluctuation-induced transport, heating, current-drive and flow sources and sinks, small magnetic field nonaxisymmetries, magnetic field transients, etc. A set of self-consistent second order in gyroradius fluid-moment-based transport equations for nearly axisymmetric tokamak plasmas has been developed using a kinetic-based approach. The derivation uses neoclassical-based parallel viscous force closures, and includes all the effects noted above. Plasma processes on successive time scales and constraints they impose are considered sequentially: compressional Alfven waves (Grad-Shafranov equilibrium, ion radial force balance), sound waves (pressure constant along field lines, incompressible flows within a flux surface), and collisions (electrons, parallel Ohm's law; ions, damping of poloidal flow). Radial particle fluxes are driven by the many second order in gyroradius toroidal angular torques on a plasma species: seven ambipolar collision-based ones (classical, neoclassical, etc.) and eight nonambipolar ones (fluctuation-induced, polarization flows from toroidal rotation transients, etc.). The plasma toroidal rotation equation results from setting to zero the net radial current induced by the nonambipolar fluxes. The radial particle flux consists of the collision-based intrinsically ambipolar fluxes plus the nonambipolar fluxes evaluated at the ambipolarity-enforcing toroidal plasma rotation (radial electric field). The energy transport equations do not involve an ambipolar constraint and hence are more directly obtained. The 'mean field' effects of microturbulence on the parallel Ohm's law, poloidal ion flow, particle fluxes, and toroidal momentum and energy transport are all included self-consistently. The final comprehensive equations describe radial transport of plasma toroidal rotation, and poloidal and toroidal magnetic fluxes, as well as the usual particle and energy transport.

  18. Fusion Plasma Theory project summaries

    SciTech Connect (OSTI)

    Not Available

    1993-10-01T23:59:59.000Z

    This Project Summary book is a published compilation consisting of short descriptions of each project supported by the Fusion Plasma Theory and Computing Group of the Advanced Physics and Technology Division of the Department of Energy, Office of Fusion Energy. The summaries contained in this volume were written by the individual contractors with minimal editing by the Office of Fusion Energy. Previous summaries were published in February of 1982 and December of 1987. The Plasma Theory program is responsible for the development of concepts and models that describe and predict the behavior of a magnetically confined plasma. Emphasis is given to the modelling and understanding of the processes controlling transport of energy and particles in a toroidal plasma and supporting the design of the International Thermonuclear Experimental Reactor (ITER). A tokamak transport initiative was begun in 1989 to improve understanding of how energy and particles are lost from the plasma by mechanisms that transport them across field lines. The Plasma Theory program has actively-participated in this initiative. Recently, increased attention has been given to issues of importance to the proposed Tokamak Physics Experiment (TPX). Particular attention has been paid to containment and thermalization of fast alpha particles produced in a burning fusion plasma as well as control of sawteeth, current drive, impurity control, and design of improved auxiliary heating. In addition, general models of plasma behavior are developed from physics features common to different confinement geometries. This work uses both analytical and numerical techniques. The Fusion Theory program supports research projects at US government laboratories, universities and industrial contractors. Its support of theoretical work at universities contributes to the office of Fusion Energy mission of training scientific manpower for the US Fusion Energy Program.

  19. Neutrino dispersion in magnetized plasma

    E-Print Network [OSTI]

    N. V. Mikheev; E. N. Narynskaya

    2008-12-02T23:59:59.000Z

    The neutrino dispersion in the charge symmetric magnetized plasma is investigated. We have studied the plasma contribution into the additional energy of neutrino and obtained the simple expression for it. We consider in detail the neutrino self-energy under physical conditions of weak field, moderate field and strong field limits. It is shown that our result for neutrino dispersion in moderate magnetic field differ substantially from the previous one in the literature.

  20. Flavors in an expanding plasma

    E-Print Network [OSTI]

    Johannes Große; Romuald A. Janik; Piotr Surówka

    2008-02-05T23:59:59.000Z

    We consider the effect of an expanding plasma on probe matter by determining time-dependent D7 embeddings in the holographic dual of an expanding viscous plasma. We calculate the chiral condensate and meson spectra including contributions of viscosity. The chiral condensate essentially confirms the expectation from the static black hole. For the meson spectra we propose a scheme that is in agreement with the adiabatic approximation. New contributions arise for the vector mesons at the order of the viscosity terms.

  1. Electric field divertor plasma pump

    DOE Patents [OSTI]

    Schaffer, Michael J. (San Diego, CA)

    1994-01-01T23:59:59.000Z

    An electric field plasma pump includes a toroidal ring bias electrode (56) positioned near the divertor strike point of a poloidal divertor of a tokamak (20), or similar plasma-confining apparatus. For optimum plasma pumping, the separatrix (40) of the poloidal divertor contacts the ring electrode (56), which then also acts as a divertor plate. A plenum (54) or other duct near the electrode (56) includes an entrance aperture open to receive electrically-driven plasma. The electrode (56) is insulated laterally with insulators (63,64), one of which (64) is positioned opposite the electrode at the entrance aperture. An electric field E is established between the ring electrode (56) and a vacuum vessel wall (22), with the polarity of the bias applied to the electrode being relative to the vessel wall selected such that the resultant electric field E interacts with the magnetic field B already existing in the tokamak to create an E.times.B/B.sup.2 drift velocity that drives plasma into the entrance aperture. The pumped plasma flow into the entrance aperture is insensitive to variations, intentional or otherwise, of the pump and divertor geometry. Pressure buildups in the plenum or duct connected to the entrance aperture in excess of 10 mtorr are achievable.

  2. Electric field divertor plasma pump

    DOE Patents [OSTI]

    Schaffer, M.J.

    1994-10-04T23:59:59.000Z

    An electric field plasma pump includes a toroidal ring bias electrode positioned near the divertor strike point of a poloidal divertor of a tokamak, or similar plasma-confining apparatus. For optimum plasma pumping, the separatrix of the poloidal divertor contacts the ring electrode, which then also acts as a divertor plate. A plenum or other duct near the electrode includes an entrance aperture open to receive electrically-driven plasma. The electrode is insulated laterally with insulators, one of which is positioned opposite the electrode at the entrance aperture. An electric field E is established between the ring electrode and a vacuum vessel wall, with the polarity of the bias applied to the electrode being relative to the vessel wall selected such that the resultant electric field E interacts with the magnetic field B already existing in the tokamak to create an E [times] B/B[sup 2] drift velocity that drives plasma into the entrance aperture. The pumped plasma flow into the entrance aperture is insensitive to variations, intentional or otherwise, of the pump and divertor geometry. Pressure buildups in the plenum or duct connected to the entrance aperture in excess of 10 mtorr are achievable. 11 figs.

  3. Recent Advances in Plasma Acceleration

    SciTech Connect (OSTI)

    Hogan, Mark

    2007-03-19T23:59:59.000Z

    The costs and the time scales of colliders intended to reach the energy frontier are such that it is important to explore new methods of accelerating particles to high energies. Plasma-based accelerators are particularly attractive because they are capable of producing accelerating fields that are orders of magnitude larger than those used in conventional colliders. In these accelerators a drive beam, either laser or particle, produces a plasma wave (wakefield) that accelerates charged particles. The ultimate utility of plasma accelerators will depend on sustaining ultra-high accelerating fields over a substantial length to achieve a significant energy gain. More than 42 GeV energy gain was achieved in an 85 cm long plasma wakefield accelerator driven by a 42 GeV electron drive beam in the Final Focus Test Beam (FFTB) Facility at SLAC. Most of the beam electrons lose energy to the plasma wave, but some electrons in the back of the same beam pulse are accelerated with a field of {approx}52 GV/m. This effectively doubles their energy, producing the energy gain of the 3 km long SLAC accelerator in less than a meter for a small fraction of the electrons in the injected bunch. Prospects for a drive-witness bunch configuration and high-gradient positron acceleration experiments planned for the SABER facility will be discussed.

  4. Plasma Synthesis of Hydrogen Peroxide | Princeton Plasma Physics Lab

    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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 - September 2006Photovoltaic Theory and ModelingPinkandUniversal"PlasmaPlasma

  5. Study of internal magnetic field via polarimetry in fusion plasmas

    E-Print Network [OSTI]

    Zhang, Jie

    2013-01-01T23:59:59.000Z

    Mark A. Heald. Plasma diagnostics with microwaves. 1978.Principles of Plasma Diagnostics. 2005. ISBN 9780521675741.have been working in UCLA Plasma Diagnostic Group for my PhD

  6. Ion emission and expansion in laser-produced tin plasma

    E-Print Network [OSTI]

    Burdt, Russell Allen

    2011-01-01T23:59:59.000Z

    2.3 Plasma Diagnostics . . . . . . . . . . . . . .Chapter 3Intensities, in Plasma Diagnostic Techniques, edited by R.particle and radiation plasma diagnostics, in addition to

  7. Plasma Channel Diagnostic Based on Laser Centroid Oscillations

    E-Print Network [OSTI]

    Gonsalves, Anthony

    2012-01-01T23:59:59.000Z

    plasma density, plasma diagnostics PACS: 52.70.Kz, 52.38.Kd,Plasma Channel Diagnostic Based on Laser Centroid

  8. Ultrafast Diagnostics for Electron Beams from Laser Plasma Accelerators

    E-Print Network [OSTI]

    Matlis, N. H.

    2011-01-01T23:59:59.000Z

    Laser, Plasma, Accelerator, Diagnostic PACS: 52.25.0s,Leemans, "Charge Diagnostics for Laser Plasma Accelerators,"Ultrafast Diagnostics for Electron Beams from Laser Plasma

  9. A low-energy linear oxygen plasma source

    E-Print Network [OSTI]

    Anders, Andre; Yushkov, Georgy Yu.

    2007-01-01T23:59:59.000Z

    provide some basic plasma diagnostics of the particles in03-15 Most of the plasma diagnostics was done using a plasma

  10. REAL TIME DIGITAL SPECTRAL ANALYSIS AS A PLASMA FLUCTUATION DIAGNOSTIC

    E-Print Network [OSTI]

    Schoenberg, Kurt F.

    2012-01-01T23:59:59.000Z

    Electric Probes," in Plasma Diagnostic Techniques (R. H.SPECTRAL ANALYSIS AS A PLASMA FLUCTUATION DIAGNOSTIC Kurt F.ANALYSIS AS A PLASMA FLUCTUATION DIAGNOSTIC Kurt F. Lawrence

  11. Dense Metal Plasma in a Solenoid for Ion Beam Neutralization

    E-Print Network [OSTI]

    Anders, Andre

    2011-01-01T23:59:59.000Z

    Hutchinson, Principles of Plasma Diagnostics Cambridge, UK:magnetic field. III. PLASMA DIAGNOSTICS A. Photography Thediagnostics of vacuum arc cathode spots," IEEE Trans. Plasma

  12. Staging laser plasma accelerators for increased beam energy

    E-Print Network [OSTI]

    Panasenko, Dmitriy

    2010-01-01T23:59:59.000Z

    Staging Laser Plasma Accelerators for Increased Beam EnergyStaging laser plasma accelerators is an efficient way ofcompact laser-plasma accelerators to generate particle

  13. LASER-PLASMA-ACCELERATOR-BASED GAMMA GAMMA COLLIDERS

    E-Print Network [OSTI]

    Schroeder, C. B.

    2010-01-01T23:59:59.000Z

    LASER-PLASMA-ACCELERATOR-BASED ?? COLLIDERS ? C. B.linear col- lider based on laser-plasma-accelerators arediscussed, and a laser-plasma-accelerator-based gamma-

  14. Laser Plasma Particle Accelerators: Large Fields for Smaller Facility Sources

    E-Print Network [OSTI]

    Geddes, Cameron G.R.

    2010-01-01T23:59:59.000Z

    of high- gradient, laser plasma particle accelerators.accelerators that use laser-driven plasma waves. Theseleft) showing the laser (red), plasma wake density (purple-

  15. atazanavir plasma concentrations: Topics by E-print Network

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

    Physics and Fusion Websites Summary: The Workshop will concentrate on burning plasma research in the areas of Plasma Transport and Confinement, MHD plasma research; ...

  16. affects plasma concentrations: Topics by E-print Network

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

    Physics and Fusion Websites Summary: The Workshop will concentrate on burning plasma research in the areas of Plasma Transport and Confinement, MHD plasma research; ...

  17. aiv plasma concentrations: Topics by E-print Network

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

    Physics and Fusion Websites Summary: The Workshop will concentrate on burning plasma research in the areas of Plasma Transport and Confinement, MHD plasma research; ...

  18. Application of reservoir characterization and advanced technology to improve recovery and economics in a lower quality shallow shelf San Andres reservoir. Quarterly progress report, October 1--December 31, 1997

    SciTech Connect (OSTI)

    Taylor, A.R.; Hickman, T.S.; Justice, J.J.

    1998-01-31T23:59:59.000Z

    West Welch Unit is one of four large waterflood units in the Welch Field in the northwestern portion of Dawson County, Texas. The Welch Field produces oil under a solution gas drive mechanism from the San Andres formation at approximately 4,800 ft. The field has been under waterflood for 30 years and a significant portion has been infill-drilled on 20-ac density. A 1982--86 pilot CO{sub 2} injection project in the offsetting South Welch Unit yielded positive results. Recent installation of a CO{sub 2} pipeline near the field allowed the phased development of a miscible CO{sub 2} injection project at the South Welch Unit. The Class 2 Project at West Welch was designed to demonstrate the use of advanced technologies to enhance the economics of improved oil recovery (IOR) projects in lower quality Shallow Shelf Carbonate (SSC) reservoirs, resulting in recovery of additional oil that would otherwise be left in the reservoir at project abandonment. Accurate reservoir description is critical to the effective evaluation and efficient design of IOR projects in the heterogeneous SSC reservoirs. Therefore, the majority of Budget Period 1 was devoted to reservoir characterization. Technologies being demonstrated include: advanced petrophysics; three-dimensional seismic; cross-well bore tomography; advanced reservoir simulation; CO{sub 2} stimulation treatments; hydraulic fracturing design and monitoring; and mobility control agents. During the quarter, development of the project`s south expansion area was undertaken, work was continued on interpreting the crosswell seismic data and CO{sub 2} injection into 11 wells was initiated.

  19. Plasma instrumentation for fusion power reactor control

    SciTech Connect (OSTI)

    Sager, G.T.; Bauer, J.F.; Maya, I.; Miley, G.H.

    1985-07-01T23:59:59.000Z

    Feedback control will be implemented in fusion power reactors to guard against unpredicted behavior of the plant and to assure desirable operation. In this study, plasma state feedback requirements for plasma control by systems strongly coupled to the plasma (magnet sets, RF, and neutral beam heating systems, and refueling systems) are estimated. Generic considerations regarding the impact of the power reactor environment on plasma instrumentation are outlined. Solutions are proposed to minimize the impact of the power reactor environment on plasma instrumentation. Key plasma diagnostics are evaluated with respect to their potential for upgrade and implementation as power reactor instruments.

  20. Ferroelectric plasma thruster for microspacecraft propulsion

    SciTech Connect (OSTI)

    Kemp, Mark A.; Kovaleski, Scott D. [Department of Electrical and Computer Engineering, University of Missouri-Columbia, Columbia, Missouri 65211 (United States)

    2006-12-01T23:59:59.000Z

    This paper presents a technology in microthruster design: the ferroelectric plasma thruster (FEPT). The FEPT utilizes an applied rf electric field to create plasma on the surface of a ferroelectric dielectric. Acceleration of ions from this plasma provides thrust. Advantages of the FEPT include emission of both electrons and ions leading to self-neutralization, creation of plasma, and acceleration of ions with a single power supply, and application of thrust in a short amount of time. We present the concept of the thruster, operational physics, as well as experimental results demonstrating plasma creation and ion acceleration. These results along with plasma spectroscopy allow us to calculate thruster parameters.

  1. Constricted glow discharge plasma source

    DOE Patents [OSTI]

    Anders, Andre (Albany, CA); Anders, Simone (Albany, CA); Dickinson, Michael (San Leandro, CA); Rubin, Michael (Berkeley, CA); Newman, Nathan (Winnetka, IL)

    2000-01-01T23:59:59.000Z

    A constricted glow discharge chamber and method are disclosed. The polarity and geometry of the constricted glow discharge plasma source is set so that the contamination and energy of the ions discharged from the source are minimized. The several sources can be mounted in parallel and in series to provide a sustained ultra low source of ions in a plasma with contamination below practical detection limits. The source is suitable for applying films of nitrides such as gallium nitride and oxides such as tungsten oxide and for enriching other substances in material surfaces such as oxygen and water vapor, which are difficult process as plasma in any known devices and methods. The source can also be used to assist the deposition of films such as metal films by providing low-energy ions such as argon ions.

  2. Plasma Production via Field Ionization

    SciTech Connect (OSTI)

    O'Connell, C.L.; Barnes, C.D.; Decker, F.; Hogan, M.J.; Iverson, R.; Krejcik, P.; Siemann, R.; Walz, D.R.; /SLAC; Clayton, C.E.; Huang, C.; Johnson, D.K.; Joshi, C.; Lu,; Marsh, K.A.; Mori, W.; Zhou, M.; /UCLA; Deng, S.; Katsouleas, T.; Muggli, P.; Oz, E.; /Southern California U.

    2007-01-02T23:59:59.000Z

    Plasma production via field ionization occurs when an incoming particle beam is sufficiently dense that the electric field associated with the beam ionizes a neutral vapor or gas. Experiments conducted at the Stanford Linear Accelerator Center explore the threshold conditions necessary to induce field ionization by an electron beam in a neutral lithium vapor. By independently varying the transverse beam size, number of electrons per bunch or bunch length, the radial component of the electric field is controlled to be above or below the threshold for field ionization. Additional experiments ionized neutral xenon and neutral nitric oxide by varying the incoming beam's bunch length. A self-ionized plasma is an essential step for the viability of plasma-based accelerators for future high-energy experiments.

  3. Plasma-catalyzed fuel reformer

    DOE Patents [OSTI]

    Hartvigsen, Joseph J.; Elangovan, S.; Czernichowski, Piotr; Hollist, Michele

    2013-06-11T23:59:59.000Z

    A reformer is disclosed that includes a plasma zone to receive a pre-heated mixture of reactants and ionize the reactants by applying an electrical potential thereto. A first thermally conductive surface surrounds the plasma zone and is configured to transfer heat from an external heat source into the plasma zone. The reformer further includes a reaction zone to chemically transform the ionized reactants into synthesis gas comprising hydrogen and carbon monoxide. A second thermally conductive surface surrounds the reaction zone and is configured to transfer heat from the external heat source into the reaction zone. The first thermally conductive surface and second thermally conductive surface are both directly exposed to the external heat source. A corresponding method and system are also disclosed and claimed herein.

  4. Plasma Panel Based Radiation Detectors

    SciTech Connect (OSTI)

    Friedman, Dr. Peter S. [Integrated Sensors, LLC; Varner Jr, Robert L [ORNL; Ball, Robert [University of Michigan; Beene, James R [ORNL; Ben Moshe, M. [Tel Aviv University; Benhammou, Yan [Tel Aviv University; Chapman, J. Wehrley [University of Michigan; Etzion, E [Tel Aviv University; Ferretti, Claudio [University of Michigan; Bentefour, E [Ion Beam Applications; Levin, Daniel S. [University of Michigan; Moshe, M. [Tel Aviv University; Silver, Yiftah [Tel Aviv University; Weaverdyck, Curtis [University of Michigan; Zhou, Bing [University of Michigan

    2013-01-01T23:59:59.000Z

    The plasma panel sensor (PPS) is a gaseous micropattern radiation detector under current development. It has many operational and fabrication principles common to plasma display panels (PDPs). It comprises a dense matrix of small, gas plasma discharge cells within a hermetically sealed panel. As in PDPs, it uses non-reactive, intrinsically radiation-hard materials such as glass substrates, refractory metal electrodes, and mostly inert gas mixtures. We are developing these devices primarily as thin, low-mass detectors with gas gaps from a few hundred microns to a few millimeters. The PPS is a high gain, inherently digital device with the potential for fast response times, fine position resolution (< 50 m RMS) and low cost. In this paper we report here on prototype PPS experimental results in detecting betas, protons and cosmic muons, and we extrapolate on the PPS potential for applications including detection of alphas, heavy-ions at low to medium energy, thermal neutrons and X-rays.

  5. Particle transport in plasma reactors

    SciTech Connect (OSTI)

    Rader, D.J.; Geller, A.S.; Choi, Seung J. [Sandia National Labs., Albuquerque, NM (United States); Kushner, M.J. [Illinois Univ., Urbana, IL (United States)

    1995-01-01T23:59:59.000Z

    SEMATECH and the Department of Energy have established a Contamination Free Manufacturing Research Center (CFMRC) located at Sandia National Laboratories. One of the programs underway at the CFMRC is directed towards defect reduction in semiconductor process reactors by the application of computational modeling. The goal is to use fluid, thermal, plasma, and particle transport models to identify process conditions and tool designs that reduce the deposition rate of particles on wafers. The program is directed toward defect reduction in specific manufacturing tools, although some model development is undertaken when needed. The need to produce quantifiable improvements in tool defect performance requires the close cooperation among Sandia, universities, SEMATECH, SEMATECH member companies, and equipment manufacturers. Currently, both plasma (e.g., etch, PECVD) and nonplasma tools (e.g., LPCVD, rinse tanks) are being worked on under this program. In this paper the authors summarize their recent efforts to reduce particle deposition on wafers during plasma-based semiconductor manufacturing.

  6. Coupled microwave ECR and radio-frequency plasma source for plasma processing

    DOE Patents [OSTI]

    Tsai, C.C.; Haselton, H.H.

    1994-03-08T23:59:59.000Z

    In a dual plasma device, the first plasma is a microwave discharge having its own means of plasma initiation and control. The microwave discharge operates at electron cyclotron resonance (ECR), and generates a uniform plasma over a large area of about 1000 cm[sup 2] at low pressures below 0.1 mtorr. The ECR microwave plasma initiates the second plasma, a radio frequency (RF) plasma maintained between parallel plates. The ECR microwave plasma acts as a source of charged particles, supplying copious amounts of a desired charged excited species in uniform manner to the RF plasma. The parallel plate portion of the apparatus includes a magnetic filter with static magnetic field structure that aids the formation of ECR zones in the two plasma regions, and also assists in the RF plasma also operating at electron cyclotron resonance. 4 figures.

  7. Coupled microwave ECR and radio-frequency plasma source for plasma processing

    DOE Patents [OSTI]

    Tsai, Chin-Chi (Oak Ridge, TN); Haselton, Halsey H. (Knoxville, TN)

    1994-01-01T23:59:59.000Z

    In a dual plasma device, the first plasma is a microwave discharge having its own means of plasma initiation and control. The microwave discharge operates at electron cyclotron resonance (ECR), and generates a uniform plasma over a large area of about 1000 cm.sup.2 at low pressures below 0.1 mtorr. The ECR microwave plasma initiates the second plasma, a radio frequency (RF) plasma maintained between parallel plates. The ECR microwave plasma acts as a source of charged particles, supplying copious amounts of a desired charged excited species in uniform manner to the RF plasma. The parallel plate portion of the apparatus includes a magnetic filter with static magnetic field structure that aids the formation of ECR zones in the two plasma regions, and also assists in the RF plasma also operating at electron cyclotron resonance.

  8. Plasma Wakefield Experiments at FACET

    SciTech Connect (OSTI)

    Hogan, M.J.; England, R.J.; Frederico, J.; Hast, C.; Li, S.Z.; Litos, M.; Walz, D.; /SLAC; An, W.; Clayton, C.E.; Joshi, C.; Lu, W.; Marsh, K.A.; Mori, W.; Tochitsky, S.; /UCLA; Muggli, P.; Pinkerton, S.; Shi, Y.; /Southern California U.

    2011-08-19T23:59:59.000Z

    FACET, the Facility for Advanced Accelerator and Experimental Tests, is a new facility being constructed in sector 20 of the SLAC linac primarily to study beam driven plasma wakefield acceleration beginning in summer 2011. The nominal FACET parameters are 23GeV, 3nC electron bunches compressed to {approx}20{micro}m long and focused to {approx}10{micro}m wide. The intense fields of the FACET bunches will be used to field ionize neutral lithium or cesium vapor produced in a heat pipe oven. Previous experiments at the SLAC FFTB facility demonstrated 50GeV/m gradients in an 85cm field ionized lithium plasma where the interaction distance was limited by head erosion. Simulations indicate the lower ionization potential of cesium will decrease the rate of head erosion and increase single stage performance. The initial experimental program will compare the performance of lithium and cesium plasma sources with single and double bunches. Later experiments will investigate improved performance with a pre-ionized cesium plasma. The status of the experiments and expected performance are reviewed. The FACET Facility is being constructed in sector 20 of the SLAC linac primarily to study beam driven plasma wakefield acceleration. The facility will begin commissioning in summer 2011 and conduct an experimental program over the coming five years to study electron and positron beam driven plasma acceleration with strong wake loading in the non-linear regime. The FACET experiments aim to demonstrate high-gradient acceleration of electron and positron beams with high efficiency and negligible emittance growth.

  9. Plasma Facing Component Science and Technology for Burning Plasma Experiments

    E-Print Network [OSTI]

    HeatFlux(MW/m2 ) Disruptions Reentry Vehicles Fusion Divertor Fusion First Wall Fast Breeder Fission Reactor Radiant Flux at Sun Surface Rocket Nozzles Comparison Relative Heat Fluxes Fusion Plasma #12;MAU prediction of disruptions about 50 ms before they occur with a >90% accuracy ­ Massive gas puffing

  10. Plasma atomic layer etching using conventional plasma equipment

    SciTech Connect (OSTI)

    Agarwal, Ankur; Kushner, Mark J. [Department of Chemical and Biomolecular Engineering, University of Illinois, 600 S. Mathews Ave., Urbana, Illinois 61801 (United States); Department of Electrical Engineering and Computer Science, University of Michigan, 1301 Beal Ave., Ann Arbor, Michigan 48109-2122 (United States)

    2009-01-15T23:59:59.000Z

    The decrease in feature sizes in microelectronics fabrication will soon require plasma etching processes having atomic layer resolution. The basis of plasma atomic layer etching (PALE) is forming a layer of passivation that allows the underlying substrate material to be etched with lower activation energy than in the absence of the passivation. The subsequent removal of the passivation with carefully tailored activation energy then removes a single layer of the underlying material. If these goals are met, the process is self-limiting. A challenge of PALE is the high cost of specialized equipment and slow processing speed. In this work, results from a computational investigation of PALE will be discussed with the goal of demonstrating the potential of using conventional plasma etching equipment having acceptable processing speeds. Results will be discussed using inductively coupled and magnetically enhanced capacitively coupled plasmas in which nonsinusoidal waveforms are used to regulate ion energies to optimize the passivation and etch steps. This strategy may also enable the use of a single gas mixture, as opposed to changing gas mixtures between steps.

  11. The plasma focus as a thruster

    E-Print Network [OSTI]

    Hardy, Richard Lee

    2005-02-17T23:59:59.000Z

    The need for low propellant weight, high efficiency propulsion systems is a glaring need for various space missions. This thesis presents the thrust modeling of the Dense Plasma Focus plasma motion phases. It also contrasts some of the engineering...

  12. A Plasma Lens for Magnetron Sputtering

    SciTech Connect (OSTI)

    Anders, Andre; Brown, Jeff

    2010-11-30T23:59:59.000Z

    A plasma lens, consisting of a solenoid and potential-defining ring electrodes, has been placed between a magnetron and substrates to be coated. Photography reveals qualitative information on excitation, ionization, and the transport of plasma to the substrate.

  13. Rotation generation and transport in tokamak plasmas

    E-Print Network [OSTI]

    Podpaly, Yuri Anatoly

    2012-01-01T23:59:59.000Z

    Plasma toroidal rotation is a factor important for plasma stability and transport, but it is still a fairly poorly understood area of physics. This thesis focuses on three aspects of rotation: momentum transport, Ohmic ...

  14. Administrative Support Assistant | Princeton Plasma Physics Lab

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

    Lab Leadership Directory Careers Human Resources Employment Opportunities Environment, Safety & Health Procurement Division Technology Transfer Furth Plasma Physics Library...

  15. Methane Conversion by Plasma Assisted Methods

    E-Print Network [OSTI]

    and Helge Egsgaard2 1Optics and Plasma Research Department 2Biosystems Department Risø National Laboratory

  16. Practical applications of plasma surface modification

    SciTech Connect (OSTI)

    Smith, M.D.

    1993-12-01T23:59:59.000Z

    Radio frequency activated gas plasma is an environmentally conscious manufacturing process which provides surface treatments for improved product quality. Plasma processing offers significant potential for reducing the use of solvents and other wet processing chemicals now used in surface treatments such as cleaning, activation for bonding, and moisture removal. Plasma treatments are generally accomplished without creating hazardous waste streams to dispose of. Plasma process development and application is ongoing at Allied Signal Inc., Kansas City Division.

  17. Comparing the performance of plasma impedance probes and Langmuir probes for RF plasma diagnostics

    E-Print Network [OSTI]

    Walker, Mitchell

    Comparing the performance of plasma impedance probes and Langmuir probes for RF plasma diagnostics probing, a less developed technique, can possibly overcome these problems. Better plasma diagnostic tools Ethan Dale, Dr. Mitchell Walker High-Power Electric Propulsion Laboratory Objective Plasma is the most

  18. Laser-Plasma Acceleration of Electrons and Plasma Diagnostics at High Laser Fields

    E-Print Network [OSTI]

    Shvets, Gennady

    Laser-Plasma Acceleration of Electrons and Plasma Diagnostics at High Laser Fields Mike Downer-GeV electron energies. I will review initial results in this regime, and discuss plasma diagnostics needed.5395) Plasma diagnostics 1. Introduction 30 years ago, Tajima and Dawson proposed the idea of accelerating

  19. Plasma transport in a converging magnetic field with applications to helicon plasma thrusters

    E-Print Network [OSTI]

    Choueiri, Edgar

    .1, which represents a new design criteria for helicon plasma thrusters. I. Introduction ElectrodelessPlasma transport in a converging magnetic field with applications to helicon plasma thrusters IEPC University, Princeton, New Jersey, 08540, USA Plasma transport in the convergent magnetic field region

  20. Characterization of the conduction phase of a plasma opening switch using a hydrogen plasma

    E-Print Network [OSTI]

    Characterization of the conduction phase of a plasma opening switch using a hydrogen plasma J. J Pulsed Power Physics Branch, Plasma Physics Division, Naval Research Laboratory, Washington, D.C. 20375 Y 2004; published online 7 January 2005) Plasma opening switch (POS) experiments were conducted

  1. Laser-plasma diamagnetism in the presence of an ambient magnetized plasma

    E-Print Network [OSTI]

    California at Los Angles, University of

    Laser-plasma diamagnetism in the presence of an ambient magnetized plasma M. VanZeelanda) and W cavity created by a dense laser-produced plasma initially, nlpp /n0 1) expanding into an ambient magnetized background plasma (n0 2 1012 cm 3 ) capable of supporting Alfve´n waves. The experiments

  2. How to model quantum plasmas

    E-Print Network [OSTI]

    G. Manfredi

    2005-05-01T23:59:59.000Z

    Traditional plasma physics has mainly focused on regimes characterized by high temperatures and low densities, for which quantum-mechanical effects have virtually no impact. However, recent technological advances (particularly on miniaturized semiconductor devices and nanoscale objects) have made it possible to envisage practical applications of plasma physics where the quantum nature of the particles plays a crucial role. Here, I shall review different approaches to the modeling of quantum effects in electrostatic collisionless plasmas. The full kinetic model is provided by the Wigner equation, which is the quantum analog of the Vlasov equation. The Wigner formalism is particularly attractive, as it recasts quantum mechanics in the familiar classical phase space, although this comes at the cost of dealing with negative distribution functions. Equivalently, the Wigner model can be expressed in terms of $N$ one-particle Schr{\\"o}dinger equations, coupled by Poisson's equation: this is the Hartree formalism, which is related to the `multi-stream' approach of classical plasma physics. In order to reduce the complexity of the above approaches, it is possible to develop a quantum fluid model by taking velocity-space moments of the Wigner equation. Finally, certain regimes at large excitation energies can be described by semiclassical kinetic models (Vlasov-Poisson), provided that the initial ground-state equilibrium is treated quantum-mechanically. The above models are validated and compared both in the linear and nonlinear regimes.

  3. Hollow electrode plasma excitation source

    DOE Patents [OSTI]

    Ballou, N.E.

    1992-04-14T23:59:59.000Z

    A plasma source incorporates a furnace as a hollow anode, while a coaxial cathode is disposed therewithin. The source is located in a housing provided with an ionizable gas such that a glow discharge is produced between anode and cathode. Radiation or ionic emission from the glow discharge characterizes a sample placed within the furnace and heated to elevated temperatures. 5 figs.

  4. Hydrodynamics of the cascading plasma

    E-Print Network [OSTI]

    Alex Buchel

    2009-06-03T23:59:59.000Z

    The cascading gauge theory of Klebanov et.al realizes a soluble example of gauge/string correspondence in a non-conformal setting. Such a gauge theory has a strong coupling scale Lambda, below which it confines with a chiral symmetry breaking. A holographic description of a strongly coupled cascading gauge theory plasma is represented by a black brane solution of type IIB supergravity on a conifold with fluxes. A characteristic parameter controlling the high temperature expansion of such plasma is 1/ln(T/Lambda). In this paper we study the speed of sound and the bulk viscosity of the cascading gauge theory plasma to order 1/ln(T/Lambda)^4. We find that the bulk viscosity satisfies the bound conjectured in arXiv:0708.3459. We comment on difficulties of computing the transport coefficients to all orders in T/Lambda. Previously, it was shown that a cascading gauge theory plasma undergoes a first-order deconfinement transition with unbroken chiral symmetry at T_c=0.6141111(3) Lambda. We show here that a deconfined chirally symmetric phase becomes perturbatively unstable at T_u=0.8749(0) T_c. Near the unstable point the specific heat diverges as c_V ~ |1-T_u/T|^(-1/2).

  5. Plasmas are Hot and Fusion is Cool

    SciTech Connect (OSTI)

    None

    2011-01-01T23:59:59.000Z

    Plasmas are Hot and Fusion is Cold. The DOE Princeton Plasma Physics Laboratory (PPPL) collaborates to develop fusion as a safe, clean and abundant energy source for the future. This video discusses PPPL's research and development on plasma, the fourth state of matter.

  6. THE SOLAR WIND PLASMA Dr. Joe Borovsky

    E-Print Network [OSTI]

    Shyy, Wei

    involved multidipole plasma devices. Current research interests focus on structure in the solar wind THE SOLAR WIND PLASMA Dr. Joe Borovsky Los Alamos National Laboratory and University, magnetized, collisionless plasma, important for the geomagnetic activity that it drives at Earth and for its

  7. Planar controlled zone microwave plasma system

    DOE Patents [OSTI]

    Ripley, Edward B. (Knoxville, TN); Seals, Roland D. (Oak Ridge, TN); Morrell, Jonathan S. (Knoxvlle, TN)

    2011-10-04T23:59:59.000Z

    An apparatus and method for initiating a process gas plasma. A conductive plate having a plurality of conductive fingers is positioned in a microwave applicator. An arc forms between the conductive fingers to initiate the formation of a plasma. A transport mechanism may convey process materials through the plasma. A spray port may be provided to expel processed materials.

  8. Plasma Physics and Fusion Energy Miklos Porkolab

    E-Print Network [OSTI]

    Plasma Physics and Fusion Energy Miklos Porkolab MIT Plasma Science and Fusion Center Presented at the Fusion Power Associates Annual Meeting Washington, D.C. December 2-3, 2009 Porkolab_FPA_2009 #12;Proposed is sufficient physics to make ITER a success but much more to learn for DEMO grade plasmas See review talk

  9. Burning Plasma Experiment Requirements Presented to

    E-Print Network [OSTI]

    -heating(self-organization?) · Test techniques to control and optimize alpha-dominated plasmas. · Sustain alpha-dominated plasmas ? Test Control and Optimization Techniques >0.5 0.4 to 0.6 10 >3 1 Sustain Alpha Dominated Plasmas >0, possible guided slower speed pellets) First wall materials Be tiles, no carbon First wall cooling

  10. Feasibility Study for a Plasma Dynamo Facility to Investigate Fundamental Processes in Plasma Astrophysics. Final report

    SciTech Connect (OSTI)

    Forest, Cary B.

    2013-09-19T23:59:59.000Z

    The scientific equipment purchased on this grant was used on the Plasma Dynamo Prototype Experiment as part of Professor Forest's feasibility study for determining if it would be worthwhile to propose building a larger plasma physics experiment to investigate various fundamental processes in plasma astrophysics. The initial research on the Plasma Dynamo Prototype Experiment was successful so Professor Forest and Professor Ellen Zweibel at UW-Madison submitted an NSF Major Research Instrumentation proposal titled "ARRA MRI: Development of a Plasma Dynamo Facility for Experimental Investigations of Fundamental Processes in Plasma Astrophysics." They received funding for this project and the Plasma Dynamo Facility also known as the "Madison Plasma Dynamo Experiment" was constructed. This experiment achieved its first plasma in the fall of 2012 and U.S. Dept. of Energy Grant No. DE-SC0008709 "Experimental Studies of Plasma Dynamos," now supports the research.

  11. Miniaturized cathodic arc plasma source

    DOE Patents [OSTI]

    Anders, Andre (Albany, CA); MacGill, Robert A. (Richmond, CA)

    2003-04-15T23:59:59.000Z

    A cathodic arc plasma source has an anode formed of a plurality of spaced baffles which extend beyond the active cathode surface of the cathode. With the open baffle structure of the anode, most macroparticles pass through the gaps between the baffles and reflect off the baffles out of the plasma stream that enters a filter. Thus the anode not only has an electrical function but serves as a prefilter. The cathode has a small diameter, e.g. a rod of about 1/4 inch (6.25 mm) diameter. Thus the plasma source output is well localized, even with cathode spot movement which is limited in area, so that it effectively couples into a miniaturized filter. With a small area cathode, the material eroded from the cathode needs to be replaced to maintain plasma production. Therefore, the source includes a cathode advancement or feed mechanism coupled to cathode rod. The cathode also requires a cooling mechanism. The movable cathode rod is housed in a cooled metal shield or tube which serves as both a current conductor, thus reducing ohmic heat produced in the cathode, and as the heat sink for heat generated at or near the cathode. Cooling of the cathode housing tube is done by contact with coolant at a place remote from the active cathode surface. The source is operated in pulsed mode at relatively high currents, about 1 kA. The high arc current can also be used to operate the magnetic filter. A cathodic arc plasma deposition system using this source can be used for the deposition of ultrathin amorphous hard carbon (a-C) films for the magnetic storage industry.

  12. Analysis of radiofrequency discharges in plasma

    DOE Patents [OSTI]

    Kumar, D.; McGlynn, S.P.

    1992-08-04T23:59:59.000Z

    Separation of laser optogalvanic signals in plasma into two components: (1) an ionization rate change component, and (2) a photoacoustic mediated component. This separation of components may be performed even when the two components overlap in time, by measuring time-resolved laser optogalvanic signals in an rf discharge plasma as the rf frequency is varied near the electrical resonance peak of the plasma and associated driving/detecting circuits. A novel spectrometer may be constructed to make these measurements. Such a spectrometer would be useful in better understanding and controlling such processes as plasma etching and plasma deposition. 15 figs.

  13. Plasma Basics Plasma is often called the "Fourth State of Matter". Although found in virtually every home and business,

    E-Print Network [OSTI]

    Plasma Basics Plasma is often called the "Fourth State of Matter". Although found in virtually every home and business, gas plasma is not well known. In fact, plasma is quite common - it is estimated that 99% of the visible universe consists of plasma. Earthbound plasmas include lightning, fluorescent

  14. Oscillating plasma bubbles. II. Pulsed experiments

    SciTech Connect (OSTI)

    Stenzel, R. L.; Urrutia, J. M. [Department of Physics and Astronomy, University of California, Los Angeles, California 90095-1547 (United States)

    2012-08-15T23:59:59.000Z

    Time-dependent phenomena have been investigated in plasma bubbles which are created by inserting spherical grids into an ambient plasma and letting electrons and ions form a plasma of different parameters than the ambient one. There are no plasma sources inside the bubble. The grid bias controls the particle flux. There are sheaths on both sides of the grid, each of which passes particle flows in both directions. The inner sheath or plasma potential develops self consistently to establish charge neutrality and divergence free charge and mass flows. When the electron supply is restricted, the inner sheath exhibits oscillations near the ion plasma frequency. When all electrons are excluded, a virtual anode forms on the inside sheath, reflects all ions such that the bubble is empty. By pulsing the ambient plasma, the lifetime of the bubble plasma has been measured. In an afterglow, plasma electrons are trapped inside the bubble and the bubble decays as slow as the ambient plasma. Pulsing the grid voltage yields the time scale for filling and emptying the bubble. Probes have been shown to modify the plasma potential. Using pulsed probes, transient ringing on the time scale of ion transit times through the bubble has been observed. The start of sheath oscillations has been investigated. The instability mechanism has been qualitatively explained. The dependence of the oscillation frequency on electrons in the sheath has been clarified.

  15. Interpenetration and stagnation in colliding laser plasmas

    SciTech Connect (OSTI)

    Al-Shboul, K. F. [Center for Materials Under eXtreme Environment, School of Nuclear Engineering, Purdue University, West Lafayette, Indiana 47907 (United States) [Center for Materials Under eXtreme Environment, School of Nuclear Engineering, Purdue University, West Lafayette, Indiana 47907 (United States); Department of Nuclear Engineering, Jordan University of Science and Technology, Irbid 22110 (Jordan); Harilal, S. S., E-mail: hari@purdue.edu; Hassan, S. M.; Hassanein, A. [Center for Materials Under eXtreme Environment, School of Nuclear Engineering, Purdue University, West Lafayette, Indiana 47907 (United States)] [Center for Materials Under eXtreme Environment, School of Nuclear Engineering, Purdue University, West Lafayette, Indiana 47907 (United States); Costello, J. T. [School of Physical Sciences and NCPST, Dublin City University, Dublin 9 (Ireland)] [School of Physical Sciences and NCPST, Dublin City University, Dublin 9 (Ireland); Yabuuchi, T.; Tanaka, K. A. [Graduate School of Engineering, Osaka University, Yamada-oka 2-1, Suita, Osaka 5650871 (Japan)] [Graduate School of Engineering, Osaka University, Yamada-oka 2-1, Suita, Osaka 5650871 (Japan); Hirooka, Y. [National Institute for Fusion Science, 322-6 Oroshi, Toki, Gifu (Japan)] [National Institute for Fusion Science, 322-6 Oroshi, Toki, Gifu (Japan)

    2014-01-15T23:59:59.000Z

    We have investigated plasma stagnation and interaction effects in colliding laser-produced plasmas. For generating colliding plasmas, two split laser beams were line-focused onto a hemi-circular target and the seed plasmas so produced were allowed to expand in mutually orthogonal directions. This experimental setup forced the expanding seed plasmas to come to a focus at the center of the chamber. The interpenetration and stagnation of plasmas of candidate fusion wall materials, viz., carbon and tungsten, and other materials, viz., aluminum, and molybdenum were investigated in this study. Fast-gated imaging, Faraday cup ion analysis, and optical emission spectroscopy were used for diagnosing seed and colliding plasma plumes. Our results show that high-Z target (W, Mo) plasma ions interpenetrate each other, while low-Z (C, Al) plasmas stagnate at the collision plane. For carbon seed plasmas, an intense stagnation was observed resulting in longer plasma lifetime; in addition, the stagnation layer was found to be rich with C{sub 2} dimers.

  16. Steady state compact toroidal plasma production

    DOE Patents [OSTI]

    Turner, William C. (Livermore, CA)

    1986-01-01T23:59:59.000Z

    Apparatus and method for maintaining steady state compact toroidal plasmas. A compact toroidal plasma is formed by a magnetized coaxial plasma gun and held in close proximity to the gun electrodes by applied magnetic fields or magnetic fields produced by image currents in conducting walls. Voltage supply means maintains a constant potential across the electrodes producing an increasing magnetic helicity which drives the plasma away from a minimum energy state. The plasma globally relaxes to a new minimum energy state, conserving helicity according to Taylor's relaxation hypothesis, and injecting net helicity into the core of the compact toroidal plasma. Controlling the voltage so as to inject net helicity at a predetermined rate based on dissipative processes maintains or increases the compact toroidal plasma in a time averaged steady state mode.

  17. Atmospheric Pressure Plasma Process And Applications

    SciTech Connect (OSTI)

    Peter C. Kong; Myrtle

    2006-09-01T23:59:59.000Z

    This paper provides a general discussion of atmospheric-pressure plasma generation, processes, and applications. There are two distinct categories of atmospheric-pressure plasmas: thermal and nonthermal. Thermal atmospheric-pressure plasmas include those produced in high intensity arcs, plasma torches, or in high intensity, high frequency discharges. Although nonthermal plasmas are at room temperatures, they are extremely effective in producing activated species, e.g., free radicals and excited state atoms. Thus, both thermal and nonthermal atmosphericpressure plasmas are finding applications in a wide variety of industrial processes, e.g. waste destruction, material recovery, extractive metallurgy, powder synthesis, and energy conversion. A brief discussion of recent plasma technology research and development activities at the Idaho National Laboratory is included.

  18. Plasma plume MHD power generator and method

    DOE Patents [OSTI]

    Hammer, James H. (Livermore, CA)

    1993-01-01T23:59:59.000Z

    Highly-conducting plasma plumes are ejected across the interplanetary magnetic field from a situs that is moving relative to the solar wind, such as a spacecraft or an astral body, such as the moon, having no magnetosphere that excludes the solar wind. Discrete plasma plumes are generated by plasma guns at the situs extending in opposite directions to one another and at an angle, preferably orthogonal, to the magnetic field direction of the solar wind plasma. The opposed plumes are separately electrically connected to their source by a low impedance connection. The relative movement between the plasma plumes and the solar wind plasma creates a voltage drop across the plumes which is tapped by placing the desired electrical load between the electrical connections of the plumes to their sources. A portion of the energy produced may be used in generating the plasma plumes for sustained operation.

  19. Neutral-plasma interactions are expected to have a significant influence on edge plasma conditions in the edge region of a tokamak plasma, and thus

    E-Print Network [OSTI]

    Hughes, Jerry

    Neutral-plasma interactions are expected to have a significant influence on edge plasma conditions in the edge region of a tokamak plasma, and thus on global plasma confinement. In particular, the particle source from ionization should be considered in the study of plasma transport within the H-mode pedestal

  20. Redshift of photons penetrating a hot plasma

    E-Print Network [OSTI]

    Ari Brynjolfsson

    2005-10-07T23:59:59.000Z

    A new interaction, plasma redshift, is derived, which is important only when photons penetrate a hot, sparse electron plasma. The derivation of plasma redshift is based entirely on conventional axioms of physics. When photons penetrate a cold and dense plasma, they lose energy through ionization and excitation, Compton scattering on the individual electrons, and Raman scattering on the plasma frequency. But in sparse hot plasma, such as in the solar corona, the photons lose energy also in plasma redshift. The energy loss per electron in the plasma redshift is about equal to the product of the photon's energy and one half of the Compton cross-section per electron. In quiescent solar corona, this heating starts in the transition zone to the corona and is a major fraction of the coronal heating. Plasma redshift contributes also to the heating of the interstellar plasma, the galactic corona, and the intergalactic plasma. Plasma redshift explains the solar redshifts, the redshifts of the galactic corona, the cosmological redshifts, the cosmic microwave background, and the X-ray background. The plasma redshift explains the observed magnitude-redshift relation for supernovae SNe Ia without the big bang, dark matter, or dark energy. There is no cosmic time dilation. The universe is not expanding. The plasma redshift, when compared with experiments, shows that the photons' classical gravitational redshifts are reversed as the photons move from the Sun to the Earth. This is a quantum mechanical effect. As seen from the Earth, a repulsion force acts on the photons. This means that there is no need for Einstein's Lambda term. The universe is quasi-static, infinite, and everlasting.

  1. Plasma conductivity at finite coupling

    E-Print Network [OSTI]

    Babiker Hassanain; Martin Schvellinger

    2011-08-31T23:59:59.000Z

    By taking into account the full order(\\alpha'^3) type IIB string theory corrections to the supergravity action, we compute the leading finite 't Hooft coupling order(\\lambda^{-3/2}) corrections to the conductivity of strongly-coupled SU(N) {\\cal {N}}=4 supersymmetric Yang-Mills plasma in the large N limit. We find that the conductivity is enhanced by the corrections, in agreement with the trend expected from previous perturbative weak-coupling computations.

  2. Burning Plasma Support Research Program

    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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth (AOD)ProductssondeadjustsondeadjustAboutScienceCareersEnergy,ServicesBurning Plasma Support Research Program

  3. Cyclotron resonance in plasma flow

    SciTech Connect (OSTI)

    Artemyev, A. V.; Agapitov, O. V.; Krasnoselskikh, V. V. [LPC2E/CNRS-University of Orleans, Orleans (France)] [LPC2E/CNRS-University of Orleans, Orleans (France)

    2013-12-15T23:59:59.000Z

    This paper is devoted to the mechanism of particle acceleration via resonant interaction with the electromagnetic circular wave propagating along the inhomogeneous background magnetic field in the presence of a plasma flow. We consider the system where the plasma flow velocity is large enough to change the direction of wave propagation in the rest frame. This system mimics a magnetic field configuration typical for inner structure of a quasi-parallel shock wave. We consider conditions of gyroresonant interaction when the force corresponding to an inhomogeneity of the background magnetic field is compensated by the Lorentz force of the wave-magnetic field. The wave-amplitude is assumed to be about 10% of the background magnetic field. We show that particles can gain energy if kv{sub sw}>?>kv{sub sw}??{sub c} where k is the wave number, v{sub sw} is a plasma flow velocity, and ? and ?{sub c} are the wave frequency and the particle gyrofrequency, respectively. This mechanism of acceleration resembles the gyrosurfing mechanism, but the effect of the electrostatic field is replaced by the effect of the magnetic field inhomogeneity.

  4. Modeling the Lunar plasma wake

    E-Print Network [OSTI]

    Holmstrom, M

    2013-01-01T23:59:59.000Z

    Bodies that lack a significant atmosphere and internal magnetic fields, such as the Moon and asteroids, can to a first approximation be considered passive absorbers of the solar wind. The solar wind ions and electrons directly impact the surface of these bodies due to the lack of atmosphere, and the interplanetary magnetic field passes through the obstacle relatively undisturbed because the bodies are assumed to be non-conductive. Since the solar wind is absorbed by the body, a wake is created behind the object. This wake is gradually filled by solar wind plasma downstream of the body, through thermal expansion and the resulting ambipolar electric field, along the magnetic field lines. Here we study this plasma expansion into a vacuum using a hybrid plasma solver. In the hybrid approximation, ions are treated as particles, and electrons as a massless fluid. We also derive corresponding one- and two-dimensional model problems that account for the absorbing obstacle. It is found that the absorbing obstacle crea...

  5. Pre-equilibrium plasma dynamics

    SciTech Connect (OSTI)

    Heinz, U.

    1986-01-01T23:59:59.000Z

    Approaches towards understanding and describing the pre-equilibrium stage of quark-gluon plasma formation in heavy-ion collisions are reviewed. Focus is on a kinetic theory approach to non-equilibrium dynamics, its extension to include the dynamics of color degrees of freedom when applied to the quark-gluon plasma, its quantum field theoretical foundations, and its relationship to both the particle formation stage at the very beginning of the nuclear collision and the hydrodynamic stage at late collision times. The usefulness of this approach to obtain the transport coefficients in the quark-gluon plasma and to derive the collective mode spectrum and damping rates in this phase are discussed. Comments are made on the general difficulty to find appropriated initial conditions to get the kinetic theory started, and a specific model is given that demonstrates that, once given such initial conditions, the system can be followed all the way through into the hydrodynamical regime. 39 refs., 7 figs. (LEW)

  6. Proposed method for high-speed plasma density measurement in proton-driven plasma wakefield acceleration

    SciTech Connect (OSTI)

    Tarkeshian, R.; Reimann, O.; Muggli, P. [Max-Planck-Institut fuer Physik, 80805 Munich (Germany)

    2012-12-21T23:59:59.000Z

    Recently a proton-bunch-driven plasma wakefield acceleration experiment using the CERN-SPS beam was proposed. Different types of plasma cells are under study, especially laser ionization, plasma discharge, and helicon sources. One of the key parameters is the spatial uniformity of the plasma density profile along the cell that has to be within < 1% of the nominal density (6 Multiplication-Sign 10{sup 14} cm{sup -3}). Here a setup based on a photomixing concept is proposed to measure the plasma cut-off frequency and determine the plasma density.

  7. Characterization of jovian plasma embedded dust particles

    E-Print Network [OSTI]

    Amara L. Graps

    2006-09-12T23:59:59.000Z

    As the data from space missions and laboratories improve, a research domain combining plasmas and charged dust is gaining in prominence. Our solar system provides many natural laboratories such as planetary rings, comet comae and tails, ejecta clouds around moons and asteroids, and Earth's noctilucent clouds for which to closely study plasma-embedded cosmic dust. One natural laboratory to study electromagnetically-controlled cosmic dust has been provided by the Jovian dust streams and the data from the instruments which were on board the Galileo spacecraft. Given the prodigious quantity of dust poured into the Jovian magnetosphere by Io and its volcanoes resulting in the dust streams, the possibility of dusty plasma conditions exist. This paper characterizes the main parameters for those interested in studying dust embedded in a plasma with a focus on the Jupiter environment. I show how to distinguish between dust-in-plasma and dusty-plasma and how the Havnes parameter P can be used to support or negate the possibility of collective behavior of the dusty plasma. The result of applying these tools to the Jovian dust streams reveals mostly dust-in-plasma behavior. In the orbits displaying the highest dust stream fluxes, portions of orbits E4, G7, G8, C21 satisfy the minimum requirements for a dusty plasma. However, the P parameter demonstrates that these mild dusty plasma conditions do not lead to collective behavior of the dust stream particles.

  8. Space-Time Prediction of Ocean Winds Anders Malmberg

    E-Print Network [OSTI]

    Malmberg, Anders

    -Temporal Dynamic Modelling #12;Ocean Wind Data Near-surface ocean winds are considered, since satellite grid; blue dots: satellite grid. #12;Meteorological Data - ECMWF Analyses and Forecasts FORECAST m/s 0 10 20 The images illustrate the east-west wind speed. #12;Satellite Data - Quik

  9. anders christian erichsen: Topics by E-print Network

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

    Databases and Resources Websites Summary: , at the existential expense of past and future entities. It thereby asserts, with some intuitive appeal of California, San...

  10. andere seltene benigne: Topics by E-print Network

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

    of the atomic and solid-state systems. This is achieved by capacitively coupling a superconduct- ing wire van der Wal, Caspar H. 340 Wie tippt man einen wissenschaftlichen Text?...

  11. anders omstedt matti: Topics by E-print Network

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

    of the atomic and solid-state systems. This is achieved by capacitively coupling a superconduct- ing wire van der Wal, Caspar H. 334 Wie tippt man einen wissenschaftlichen Text?...

  12. anders jagomgi jri: Topics by E-print Network

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

    of the atomic and solid-state systems. This is achieved by capacitively coupling a superconduct- ing wire van der Wal, Caspar H. 292 Wie tippt man einen wissenschaftlichen Text?...

  13. anders moen hallstein: Topics by E-print Network

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

    of the atomic and solid-state systems. This is achieved by capacitively coupling a superconduct- ing wire van der Wal, Caspar H. 325 Wie tippt man einen wissenschaftlichen Text?...

  14. anders danielsson patrik: Topics by E-print Network

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

    of the atomic and solid-state systems. This is achieved by capacitively coupling a superconduct- ing wire van der Wal, Caspar H. 326 Wie tippt man einen wissenschaftlichen Text?...

  15. Marisa Montoya Alexa Griesel Anders Levermann Juliette Mignot Matthias Hofmann

    E-Print Network [OSTI]

    Levermann, Anders

    Ganopolski Ã? Stefan Rahmstorf The earth system model of intermediate complexity CLIMBER-3a. Part I Springer-Verlag 2005 Abstract We herein present the CLIMBER-3a Earth System Model of Intermediate

  16. PUBLISHER'S ERRATUM Marisa Montoya Alexa Griesel Anders Levermann

    E-Print Network [OSTI]

    Griesel, Alexa

    Hofmann Andrey Ganopolski Ã? Stefan Rahmstorf The earth system model of intermediate complexity CLIMBER-3a

  17. ORIGINAL ARTICLE Anders Nielsen Ingolf Steffan-Dewenter

    E-Print Network [OSTI]

    Petanidou, Theodora

    : 20 May 2011 / Published online: 18 June 2011 Ó The Ecological Society of Japan 2011 Abstract The decline of bees has raised concerns regarding their conservation and the maintenance of ecosystem services. Roberts Centre for Agri-Environmental Research, School of Agriculture, Policy and Development, University

  18. ORIGINAL ARTICLE Anders Nielsen Ingolf Steffan-Dewenter

    E-Print Network [OSTI]

    Petanidou, Theodora

    : 20 May 2011 Ó The Ecological Society of Japan 2011 Abstract The decline of bees has raised concerns regarding their conservation and the maintenance of ecosystem services they provide to bee-pollinated wild Illinois University, Carbondale, IL 62966, USA S. G. Potts Æ S. P. M. Roberts Centre for Agri-Environmental

  19. Diagnostics - Plasma Couette Experiment - Cary Forest Group - UW Plasma

    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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed Newcatalyst phasesData FilesShape,Physics Diagnostics UW Madison Plasma Couette

  20. Plasma meets nano at PPPL | Princeton Plasma Physics Lab

    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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 - September 2006Photovoltaic Theory andVelocity Profile During The PulsedPlasma

  1. Time-resolved visible and extreme ultraviolet spectroscopy of laser-produced tin plasma

    E-Print Network [OSTI]

    O'Shay, Joseph Fred

    2007-01-01T23:59:59.000Z

    R. H. Huddlestone, Plasma Diagnostic Techniques (AcademicPlasma Diagnostics beam path and key plasma diagnostics is shown schematically

  2. Boundary Plasma Turbulence Simulations for Tokamaks

    SciTech Connect (OSTI)

    Xu, X; Umansky, M; Dudson, B; Snyder, P

    2008-05-15T23:59:59.000Z

    The boundary plasma turbulence code BOUT models tokamak boundary-plasma turbulence in a realistic divertor geometry using modified Braginskii equations for plasma vorticity, density (ni), electron and ion temperature (T{sub e}; T{sub i}) and parallel momenta. The BOUT code solves for the plasma fluid equations in a three dimensional (3D) toroidal segment (or a toroidal wedge), including the region somewhat inside the separatrix and extending into the scrape-off layer; the private flux region is also included. In this paper, a description is given of the sophisticated physical models, innovative numerical algorithms, and modern software design used to simulate edge-plasmas in magnetic fusion energy devices. The BOUT code's unique capabilities and functionality are exemplified via simulations of the impact of plasma density on tokamak edge turbulence and blob dynamics.

  3. Plasma arc torch with coaxial wire feed

    DOE Patents [OSTI]

    Hooper, Frederick M (Albuquerque, NM)

    2002-01-01T23:59:59.000Z

    A plasma arc welding apparatus having a coaxial wire feed. The apparatus includes a plasma arc welding torch, a wire guide disposed coaxially inside of the plasma arc welding torch, and a hollow non-consumable electrode. The coaxial wire guide feeds non-electrified filler wire through the tip of the hollow non-consumable electrode during plasma arc welding. Non-electrified filler wires as small as 0.010 inches can be used. This invention allows precision control of the positioning and feeding of the filler wire during plasma arc welding. Since the non-electrified filler wire is fed coaxially through the center of the plasma arc torch's electrode and nozzle, the wire is automatically aimed at the optimum point in the weld zone. Therefore, there is no need for additional equipment to position and feed the filler wire from the side before or during welding.

  4. Hydrophilization of Liquid Surfaces by Plasma Treatment

    E-Print Network [OSTI]

    Victor Multanen; Gilad Chaniel; Roman Grynyov; Ron Yosef Loew; Naor Siany; Edward Bormashenko

    2014-09-01T23:59:59.000Z

    The impact of the cold radiofrequency air plasma on the surface properties of silicone oils (polydimethylsiloxane) was studied. Silicone oils of various molecular masses were markedly hydrophilized by the cold air plasma treatment. A pronounced decrease of the apparent water contact angles was observed after plasma treatment. A general theoretical approach to the calculation of apparent contact angles is proposed. The treated liquid surfaces demonstrated hydrophobic recovery. The characteristic time of the hydrophobic recovery grew with the molecular mass of the silicone oil.

  5. Resonant-cavity antenna for plasma heating

    DOE Patents [OSTI]

    Perkins, Jr., Francis W. (Princeton, NJ); Chiu, Shiu-Chu (San Diego, CA); Parks, Paul (San Diego, CA); Rawls, John M. (Del Mar, CA)

    1987-01-01T23:59:59.000Z

    Disclosed is a resonant coil cavity wave launcher for energizing a plasma immersed in a magnetic field. Energization includes launching fast Alfven waves to excite ion cyclotron frequency resonances in the plasma. The cavity includes inductive and capacitive reactive members spaced no further than one-quarter wavelength from a first wall confinement chamber of the plasma. The cavity wave launcher is energized by connection to a waveguide or transmission line carrying forward power from a remote radio frequency energy source.

  6. Plasma sprayed ceria-containing interlayer

    DOE Patents [OSTI]

    Schmidt, Douglas S.; Folser, George R.

    2006-01-10T23:59:59.000Z

    A plasma sprayed ceria-containing interlayer is provided. The interlayer has particular application in connection with a solid oxide fuel cell used within a power generation system. The fuel cell advantageously comprises an air electrode, a plasma sprayed interlayer disposed on at least a portion of the air electrode, a plasma sprayed electrolyte disposed on at least a portion of the interlayer, and a fuel electrode applied on at least a portion of the electrolyte.

  7. Plasma enhancement of combustion of solid fuels

    SciTech Connect (OSTI)

    Askarova, A.S.; Karpenko, E.I.; Messerle, V.E.; Ustimenko, A.B. [Institute of Combustion Problems, Alma Ata (Kazakhstan)

    2006-03-15T23:59:59.000Z

    Plasma fuel systems that increase the coal burning efficiency are discussed. The systems were tested for fuel oil-free startup of boilers and stabilizating a pulverized-coal flame in power-generating boilers equipped with different types of burner and burning all types of power-generating coal. Plasma ignition, thermochemical treatment of an air-fuel mixture prior to combustion, and its burning in a power-generating boiler were numerically simulated. Environmental friendliness of the plasma technology was demonstrated.

  8. Beam hosing instability in overdense plasma

    SciTech Connect (OSTI)

    Schroeder, C. B.; Benedetti, C.; Esarey, E.; Gruener, F. J.; Leemans, W. P. [Lawrence Berkeley National Laboratory, Berkeley, CA 94720 (United States); Universitaet Hamburg, Luruper Chaussee 149, 22761 Hamburg (Germany); Lawrence Berkeley National Laboratory, Berkeley, CA 94720 (United States)

    2012-12-21T23:59:59.000Z

    Transverse stability of the drive beam is critical to plasma wakefield accelerators. A long, relativistic particle beam propagating in an overdense plasma is subject to beam envelope modulation and hosing (centroid displacement) instabilities. Coupled equations for the beam centroid and envelope are derived. The growth rate for beam hosing is examined including return current effects (where the beam radius is of order the plasma skin depth) in the long-beam, strongly-coupled, overdense regime.

  9. Neutrino magnetic moment in a magnetized plasma

    E-Print Network [OSTI]

    N. V. Mikheev; E. N. Narynskaya

    2010-11-08T23:59:59.000Z

    The contribution of a magnetized plasma to the neutrino magnetic moment is calculated. It is shown that only part of the additional neutrino energy in magnetized plasma connecting with its spin and magnetic field strength defines the neutrino magnetic moment. It is found that the presence of magnetized plasma does not lead to the considerable increase of the neutrino magnetic moment in contrast to the results presented in literature previously.

  10. Nonabelian plasma instabilities in Bjorken expansion

    E-Print Network [OSTI]

    Anton Rebhan

    2008-10-17T23:59:59.000Z

    Plasma instabilities are parametrically the dominant nonequilibrium dynamics of a weakly coupled quark-gluon plasma. In recent years the time evolution of the corresponding collective colour fields has been studied in stationary anisotropic situations. Here I report on recent numerical results on the time evolution of the most unstable modes in a longitudinally expanding plasma as they grow from small rapidity fluctuations to amplitudes where non-Abelian self-interactions become important.

  11. Tapered plasma channels to phase-lock accelerating and focusing forces in laser-plasma accelerators

    E-Print Network [OSTI]

    Rittershofer, W.

    2010-01-01T23:59:59.000Z

    elds in laser plasma accelerators using higher order modes”,collider, in Advanced Accelerator Concepts, edited by C. B.forces in laser-plasma accelerators W. Rittershofer, 1, a)

  12. Magnetic field distribution in the plasma flow generated by a plasma focus discharge

    SciTech Connect (OSTI)

    Mitrofanov, K. N., E-mail: mitrofan@triniti.ru [Troitsk Institute for Innovaiton and Fusion Research (Russian Federation); Krauz, V. I., E-mail: krauz_vi@nrcki.ru; Myalton, V. V.; Velikhov, E. P.; Vinogradov, V. P.; Vinogradova, Yu. V. [National Research Centre Kurchatov Institute (Russian Federation)

    2014-11-15T23:59:59.000Z

    The magnetic field in the plasma jet propagating from the plasma pinch region along the axis of the chamber in a megajoule PF-3 plasma focus facility is studied. The dynamics of plasma with a trapped magnetic flow is analyzed. The spatial sizes of the plasma jet region in which the magnetic field concentrates are determined in the radial and axial directions. The magnetic field configuration in the plasma jet is investigated: the radial distribution of the azimuthal component of the magnetic field inside the jet is determined. It is shown that the magnetic induction vector at a given point in space can change its direction during the plasma flight. Conclusions regarding the symmetry of the plasma flow propagation relative to the chamber axis are drawn.

  13. PISCES Program: Plasma-materials interactions and edge-plasma physics research

    SciTech Connect (OSTI)

    Conn, R.W.; Hirooka, Y.

    1992-07-01T23:59:59.000Z

    This program investigates and characterizes the behavior of materials under plasma bombordment, in divertor regions. The PISCES facility is used to study divertor and plasma edge management concepts (in particular gas target divertors), as well as edge plasma turbulence and transport. The plasma source consists of a hot LaB[sub 6] cathode with an annular, water-cooled anode and attached drift tube. This cross sectional area of the plasma can be adjusted between 3 and 10 cm. A fast scanning diagnostic probe system was used for mapping plasma density profiles during biased limiter and divertor simulation experiments. Some experimental data are given on: (1) materials and surface physics, (2) edge plasma physics, and (3) a theoretical analysis of edge plasma modelling.

  14. Plasma Assisted Catalysis System for NOx Reduction

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

    SCHEMATIC Catalyst for NOx Reduction Plasma Region Exhaust Flow Solid State Pulser Power Modulator Motor Generator ENGINE Air Diesel Fuel Converter NO X + HC(Diesel) NO 2 +...

  15. Plasma-assisted catalytic reduction system

    DOE Patents [OSTI]

    Vogtlin, G.E.; Merritt, B.T.; Hsiao, M.C.; Wallman, P.H.; Penetrante, B.M.

    1998-01-27T23:59:59.000Z

    Non-thermal plasma gas treatment is combined with selective catalytic reduction to enhance NO{sub x} reduction in oxygen-rich vehicle engine exhausts. 8 figs.

  16. Betatron radiation from density tailored plasmas

    E-Print Network [OSTI]

    Ta Phuoc, Kim

    2010-01-01T23:59:59.000Z

    Betatron radiation from density tailored plasmas K. Tathe resulting betatron radiation spectrum can therefore bepro?le, the betatron radiation emitted by theses electrons

  17. Nonlocal fluxes at a plasma sheath

    SciTech Connect (OSTI)

    Marchand, R.; Abou-Assaleh, Z.; Matte, J.P. (INRS-Energie, C. P. 1020, Varennes, Quebec, J3X 1S2, Canada (CA))

    1990-06-01T23:59:59.000Z

    The particle and energy fluxes of electrons at the boundary of a plasma in contact with a perfectly absorbing plate are considered. In general, the fluxes are shown not to be determined by the plasma temperature and density at the plate but rather by a convolution of the plasma profiles in the vicinity of the plate. A simple empirical expression is proposed for the nonlocal fluxes, which approximately reproduces the results of a full kinetic calculation. The implications of this, to divertor plasmas near the neutralizer plate, are discussed.

  18. Charge Diagnostics for Laser Plasma Accelerators

    E-Print Network [OSTI]

    Nakamura, K.

    2011-01-01T23:59:59.000Z

    the 1989 Particle Accelerator Conference, IEEE, Piscataway,Diagnostics for Laser Plasma Accelerators K . Nakamura, A .ALS) synchrotron booster accelerator. The sensitivity of the

  19. Princeton Plasma Physics Laboratory Honors Three Researchers...

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

    Princeton Plasma Physics Laboratory Honors Three Researchers March 12, 2012 Tweet Widget Google Plus One Share on Facebook Gallery: Kenneth Hill received the Kaul Prize for...

  20. Plasma heating in a variable magnetic field

    SciTech Connect (OSTI)

    Kichigin, G. N., E-mail: king@iszf.irk.ru [Russian Academy of Sciences, Institute of Solar-Terrestrial Physics (Russian Federation)

    2013-05-15T23:59:59.000Z

    The problem of particle acceleration in a periodically variable magnetic field that either takes a zero value or passes through zero is considered. It is shown that, each time the field [0]passes through zero, the particle energy increases abruptly. This process can be regarded as heating in the course of which plasma particles acquire significant energy within one field period. This mechanism of plasma heating takes place in the absence of collisions between plasma particles and is analogous to the mechanism of magnetic pumping in collisional plasma considered by Alfven.

  1. Electrostatic supersolitons in three-species plasmas

    SciTech Connect (OSTI)

    Verheest, Frank [Sterrenkundig Observatorium, Universiteit Gent, Krijgslaan 281, B-9000 Gent (Belgium); School of Chemistry and Physics, University of KwaZulu-Natal, Durban 4000 (South Africa); Hellberg, Manfred A. [School of Chemistry and Physics, University of KwaZulu-Natal, Durban 4000 (South Africa); Kourakis, Ioannis [Department of Physics and Astronomy, Centre for Plasma Physics, Queen's University Belfast, BT7 1NN Northern Ireland (United Kingdom)

    2013-01-15T23:59:59.000Z

    Superficially, electrostatic potential profiles of supersolitons look like those of traditional solitons. However, their electric field profiles are markedly different, having additional extrema on the wings of the standard bipolar structure. This new concept was recently pointed out in the literature for a plasma model with five species. Here, it is shown that electrostatic supersolitons are not an artefact of exotic, complicated plasma models, but can exist even in three-species plasmas and are likely to occur in space plasmas. Further, a methodology is given to delineate their existence domains in a systematic fashion by determining the specific limiting factors.

  2. Plasma planar filament instability and Alfven waves

    E-Print Network [OSTI]

    Garcia de Andrade

    2007-03-05T23:59:59.000Z

    Inhomogeneous plasmas filaments instabilities are investigated by using the techniques of classical differential geometry of curves where Frenet torsion and curvature describe completely the motion of curves. In our case the Frenet frame changes in time and also depends upon the other coordinates taking into account the inhomogeneity of the plasma. The exponential perturbation method so commonly used to describe cosmological perturbatons is applied to magnetohydrodynamic (MHD) plasma equations to find longitudinal modes describing Alfven waves propagation modes describing plasma waves in the medium. Stability is investigated in the imaginary axis of the spectra of complex frequencies ${\\omega}$ or $Im(\\omega)\

  3. ASSESSMENTOF BURNING-PLASMA PHENOMENA COMPACTIGNITION TOKAMAK

    E-Print Network [OSTI]

    #12;MFACPANEL XIV MEMBERS Dale M. Meade, Princeton Plasma Physics Laboratory (Chairman) David E. Callen, University of Wisconsin Bruno Coppi, Massachusetts Institute of Technology Harry Dreicer, Los

  4. Electrical Power Supply Applications Engineer | Princeton Plasma...

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

    Electrical Power Supply Applications Engineer Department: Engineering Supervisor(s): John Lacenere Staff: ENG 04 Requisition Number: 1400303 The Princeton University Plasma Physics...

  5. A Relativistic-Plasma Compton Maser

    E-Print Network [OSTI]

    James C. Weatherall

    2001-08-15T23:59:59.000Z

    A relativistic pair-plasma which contains a high excitation of electrostatic turbulence could produce intense radiation at brightness temperature in excess of 10^22 K by stimulated scattering. Important relativistic effects would include the broadband frequency response of the plasma and Compton-boosting of the scattered radiation. In radio-frequency relativistic plasma, the optical depth can be as small as hundreds of meters. When the plasma wave excitation and particle distributions are one-dimensional, the frequency-dependent angular distribution of the emission exhibits characteristics of pulsar emission.

  6. Plasma vitrification of waste materials

    DOE Patents [OSTI]

    McLaughlin, David F. (Oakmont, PA); Dighe, Shyam V. (North Huntingdon, PA); Gass, William R. (Plum Boro, PA)

    1997-01-01T23:59:59.000Z

    This invention provides a process wherein hazardous or radioactive wastes in the form of liquids, slurries, or finely divided solids are mixed with finely divided glassformers (silica, alumina, soda, etc.) and injected directly into the plume of a non-transferred arc plasma torch. The extremely high temperatures and heat transfer rates makes it possible to convert the waste-glassformer mixture into a fully vitrified molten glass product in a matter of milliseconds. The molten product may then be collected in a crucible for casting into final wasteform geometry, quenching in water, or further holding time to improve homogeneity and eliminate bubbles.

  7. Landau Damping in Relativistic Plasmas

    E-Print Network [OSTI]

    Brent Young

    2014-10-10T23:59:59.000Z

    We examine the phenomenon of Landau Damping in relativistic plasmas via a study of the relativistic Vlasov-Poisson system (rVP) on the torus for initial data sufficiently close to a spatially uniform steady state. We find that if the steady state is regular enough (essentially in a Gevrey class of degree in a specified range) and that the deviation of the initial data from this steady state is small enough in a certain norm, the evolution of the system is such that its spatial density approaches a uniform constant value sub-exponentially fast (i.e. like $\\exp(-C|t|^{\\overline{\

  8. Holographic plasma and anyonic fluids

    E-Print Network [OSTI]

    Daniel K. Brattan; Gilad Lifschytz

    2013-10-20T23:59:59.000Z

    We use alternative quantisation of the $D3/D5$ system to explore properties of a strongly coupled charged plasma and strongly coupled anyonic fluids. The $S$-transform of the $D3/D5$ system is used as a model for charged matter interacting with a U(1) gauge field in the large coupling regime, and we compute the dispersion relationship of the propagating electromagnetic modes as the density and temperature are changed. A more general $SL(2,\\mathbb{Z})$ transformation gives a strongly interacting anyonic fluid, and we study its transport properties as we change the statistics of the anyons and the background magnetic field.

  9. Plasma arc melting of zirconium

    SciTech Connect (OSTI)

    Tubesing, P.K.; Korzekwa, D.R.; Dunn, P.S.

    1997-12-31T23:59:59.000Z

    Zirconium, like some other refractory metals, has an undesirable sensitivity to interstitials such as oxygen. Traditionally, zirconium is processed by electron beam melting to maintain minimum interstitial contamination. Electron beam melted zirconium, however, does not respond positively to mechanical processing due to its large grain size. The authors undertook a study to determine if plasma arc melting (PAM) technology could be utilized to maintain low interstitial concentrations and improve the response of zirconium to subsequent mechanical processing. The PAM process enabled them to control and maintain low interstitial levels of oxygen and carbon, produce a more favorable grain structure, and with supplementary off-gassing, improve the response to mechanical forming.

  10. Feedback enhanced plasma spray tool

    DOE Patents [OSTI]

    Gevelber, Michael Alan; Wroblewski, Donald Edward; Fincke, James Russell; Swank, William David; Haggard, Delon C.; Bewley, Randy Lee

    2005-11-22T23:59:59.000Z

    An improved automatic feedback control scheme enhances plasma spraying of powdered material through reduction of process variability and providing better ability to engineer coating structure. The present inventors discovered that controlling centroid position of the spatial distribution along with other output parameters, such as particle temperature, particle velocity, and molten mass flux rate, vastly increases control over the sprayed coating structure, including vertical and horizontal cracks, voids, and porosity. It also allows improved control over graded layers or compositionally varying layers of material, reduces variations, including variation in coating thickness, and allows increasing deposition rate. Various measurement and system control schemes are provided.

  11. Plasma vitrification of waste materials

    DOE Patents [OSTI]

    McLaughlin, D.F.; Dighe, S.V.; Gass, W.R.

    1997-06-10T23:59:59.000Z

    This invention provides a process wherein hazardous or radioactive wastes in the form of liquids, slurries, or finely divided solids are mixed with finely divided glassformers (silica, alumina, soda, etc.) and injected directly into the plume of a non-transferred arc plasma torch. The extremely high temperatures and heat transfer rates makes it possible to convert the waste-glassformer mixture into a fully vitrified molten glass product in a matter of milliseconds. The molten product may then be collected in a crucible for casting into final wasteform geometry, quenching in water, or further holding time to improve homogeneity and eliminate bubbles. 4 figs.

  12. Equilibration in Quark Gluon Plasma

    E-Print Network [OSTI]

    Santosh K Das; Jan-e Alam; Payal Mohanty

    2009-12-21T23:59:59.000Z

    The hydrodynamic expansion rate of quark gluon plasma (QGP) is evaluated and compared with the scattering rate of quarks and gluons within the system. Partonic scattering rates evaluated within the ambit of perturbative Quantum Choromodynamics (pQCD) are found to be smaller than the expansion rate evaluated with ideal equation of state (EoS) for the QGP. This indicate that during the space-time evolution the system remains out of equilibrium. Enhancement of pQCD cross sections and a more realistic EoS keep the partons closer to the equilibrium.

  13. Progress on a New RF Plasma Generator a

    E-Print Network [OSTI]

    source goal: produce high-recycling, strongly coupled PMI regime, guided by ITER divertor plasma Divertor Plasma Heat & Particle Fluxes ITER divertor channel What source plasma parameters are required? High-recycling plasmas led to new understanding · SOLPS (B2-Eirene) (Jülich; Garching; U. Paris) ­ Models for plasma

  14. Plasma

    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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 - September 2006Photovoltaic Theory and ModelingPinkand Results Plans,Plants

  15. Plasma

    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:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 - September 2006Photovoltaic Theory and ModelingPinkand Results

  16. DEVELOPMENT OF ONE METER-LONG LITHIUM PLASMA SOURCE AND EXCIMER MODE REDUCTION FOR PLASMA WAKEFIELD

    E-Print Network [OSTI]

    DEVELOPMENT OF ONE METER-LONG LITHIUM PLASMA SOURCE AND EXCIMER MODE REDUCTION FOR PLASMA WAKEFIELD 94720 K. Marsh, P. Muggli, S. Wang, and C. Joshi, UCLA, Los Angeles, CA 90024 Abstract A one meter long reduction. 1 INTRODUCTION A one-meter long plasma source has been constructed which will permit

  17. Experimental investigations of plasma perturbation in Thomson scattering applied to thermal plasma diagnostics

    E-Print Network [OSTI]

    Experimental investigations of plasma perturbation in Thomson scattering applied to thermal plasma diagnostics Krzysztof Dziere¸ga* and Witold Zawadzki Instytut Fizyki im. M. Smoluchowskiego, Uniwersytet ns laser pulses were performed on argon thermal discharge plasma with electron temperature Te 10 000

  18. SJTU Plasma Physics Seminar, April 10.th 2009 1 Physics of Burning Plasmas in Toroidal Magnetic

    E-Print Network [OSTI]

    Zonca, Fulvio

    plasma without appreciable degradation due to collective modes. The identification of burning plasma materials. Such analyses can be performed, at least in part, in present day experiments and provide nice examples of mutual positive feedbacks between theory, simulation and experiment. In a burning plasma

  19. Operational plasma density and laser parameters for future colliders based on laser-plasma accelerators

    SciTech Connect (OSTI)

    Schroeder, C. B.; Esarey, E.; Leemans, W. P. [Lawrence Berkeley National Laboratory, Berkeley, CA 94720 (United States)

    2012-12-21T23:59:59.000Z

    The operational plasma density and laser parameters for future colliders based on laser-plasma accelerators are discussed. Beamstrahlung limits the charge per bunch at low plasma densities. Reduced laser intensity is examined to improve accelerator efficiency in the beamstrahlung-limited regime.

  20. PUBLISHED VERSION Structure of micro-instabilities in tokamak plasmas: Stiff transport or plasma eruptions?

    E-Print Network [OSTI]

    eruptions? D. Dickinson, C. M. Roach, J. M. Skipp, and H. R. Wilson © 2013 UNITED KINGDOM ATOMIC ENERGY plasmas: Stiff transport or plasma eruptions? D. Dickinson, C. M. Roach, J. M. Skipp, and H. R. Wilson transport or plasma eruptions? D. Dickinson,1,2,a) C. M. Roach,2 J. M. Skipp,1 and H. R. Wilson1 1 York

  1. Surface kinetics and plasma equipment model for Si etching by fluorocarbon plasmas

    E-Print Network [OSTI]

    Kushner, Mark

    Surface kinetics and plasma equipment model for Si etching by fluorocarbon plasmas Da Zhanga of fluorocarbon radicals on the reactor walls, polymer erosion rates and F atom diffusion through the polymer during Si etching using fluorocarbon gases in an induc- tively coupled plasma ICP reactor.4 They observed

  2. Hawking radiation in moving plasmas

    E-Print Network [OSTI]

    L. C. Garcia de Andrade

    2005-09-07T23:59:59.000Z

    Bi-metricity and Hawking radiation are exhibit in non-relativistic moving magnetohydrodynamics (MHD) plasma medium generating two Riemannian effective spacetimes. The first metric is a flat metric although the speed of "light" is given by a time dependent signal where no Hawking radiation or effective black holes are displayed. This metric comes from a wave equation which the scalar function comes from the scalar potential of the background velocity of the fluid and depends on the perturbation of the magnetic background field. The second metric is an effective spacetime metric which comes from the perturbation of the background MHD fluid. This Riemann metric exhibits a horizon and Hawking radiation which can be expressed in terms of the background constant magnetic field. The effective velocity is given Alfven wave velocity of plasma physics. The effective black hole found here is analogous to the optical black hole in moving dielectrics found by De Lorenci et al [Phys. Rev. D (2003)] where bi-metricity and Hawking radiation in terms of the electric field are found.

  3. Ion emission and expansion in laser-produced tin plasma

    E-Print Network [OSTI]

    Burdt, Russell Allen

    2011-01-01T23:59:59.000Z

    scale length laser-produced tin plasmas, PhD dissertation,and Expansion in Laser-Produced Tin Plasma A dissertationof a CO 2 laser pulse with tin-based plasma for an extreme

  4. EVALUATION OF TWO-BEAM SPECTROSCOPY AS A PLASMA DIAGNOSTIC.

    E-Print Network [OSTI]

    Billard, Barton Dawes

    2010-01-01T23:59:59.000Z

    BEAM SPECTROSCOPY AS A PLASMA DIAGNOSTIC Barton. Dawes B i lSpectroscopy as a Plasma Diagnostic Barton Dawes Billardis thus a non-perturbing plasma diagnostic which is shown to

  5. TEMPERATURE MEASUREMENTS IN THE TORMAC IV-c PLASMA

    E-Print Network [OSTI]

    Greenwald, Martin

    2011-01-01T23:59:59.000Z

    1972). Lovberg, R. H. , Plasma Diagnostics Techniques Chap.Kunze, H. J . , Plasma Diagnostics, Chap. 9 , W. Lochte-HcWhirter, R. W. P. , Plasma Diagnostic Techniques, Chap. 5,

  6. Plasma Citrulline Levels in Horses at Risk of Acute Laminitis

    E-Print Network [OSTI]

    Jackson, Amy Lynn

    2013-04-10T23:59:59.000Z

    plasma citrulline concentrations. Citrulline is an ?-amino acid circulated in the plasma that is produced mainly by intestinal epithelial cells. We hypothesized that horses in the developmental stage of laminitis would have reduced plasma citrulline...

  7. Experimental Characterization of Plasma Heating with Beating Electrostatic Waves

    E-Print Network [OSTI]

    Choueiri, Edgar

    Experimental Characterization of Plasma Heating with Beating Electrostatic Waves Benjamin Jorns and Edgar Y. Choueiri Electric Propulsion and Plasma Dynamics Laboratory, Princeton University, Princeton, NJ, 08540 The heating of ions in a magnetized plasma by two electrostatic waves whose frequencies

  8. Original article Differences between blood and plasma concentrations

    E-Print Network [OSTI]

    Boyer, Edmond

    porte / ruminant / sang / plasma 1. INTRODUCTION Many studies in ruminant nutrition focus- ies have already focused on differences between blood and plasma concentrations of various metabolitesOriginal article Differences between blood and plasma concentrations of acetate, &beta

  9. A Space-Charge-Neutralizing Plasma for Beam Drift Compression

    E-Print Network [OSTI]

    Roy, P.K.

    2008-01-01T23:59:59.000Z

    describes the final focus plasma channel. Sec. Ill describesin Sec. V . HIF08,PKROY 2. A final focus plasma channelThe final focus plasma channel consists of either a two-

  10. PLASMA Approximate Dynamic Programming finally cracks the locomotive optimization problem

    E-Print Network [OSTI]

    Powell, Warren B.

    PLASMA ­ Approximate Dynamic Programming finally cracks the locomotive optimization problem schedules and new operating policies. PLASMA is currently running at Norfolk Southern for strategic of PLASMA: Each locomotive is modeled individually, making it possible to capture both horsepower

  11. Plasma flow measurements in a simulated low earth orbit plasma

    SciTech Connect (OSTI)

    Gabriel, S.B. (California Institute of Technology, Jet Propulsion Laboratory, Electrical Power and Propulsion Section, Pasadena, CA); Mccoy, J.E. (NASA, Johnson Space Center, Houston, TX); Carruth, M.R. Jr. (NASA, Marshall Space Flight Center, Huntsville, AL)

    1982-01-01T23:59:59.000Z

    The employment of large, higher power solar arrays for space operation has been considered, taking into account a utilization of high operating voltages. In connection with the consideration of such arrays, attention must be given to the fact that the ambient environment of space contains a tenuous low energy plasma which can interact with the high voltage array causing power 'leakage' and arcing. An investigation has been conducted with the aim to simulate the behavior of such an array in low-earth-orbit (LEO). During the experiments, local concentrations of the 'leakage' current were observed when the panel was at a high voltage. These concentrations could overload or damage a small area of cells in a large string. It was hypothesized that this effect was produced by electrostatic focusing of the particles by the sheath fields. To verify this experimentally, an end-effect Langmuir probe was employed. The obtained results are discussed.

  12. Taylor-Couette flow of unmagnetized plasma

    SciTech Connect (OSTI)

    Collins, C.; Cooper, C. M.; Flanagan, K.; Khalzov, I. V.; Nornberg, M. D.; Forest, C. B. [Department of Physics, University of Wisconsin, Madison, Wisconsin 53706 (United States) [Department of Physics, University of Wisconsin, Madison, Wisconsin 53706 (United States); Center for Magnetic Self Organization, University of Wisconsin, Madison, Wisconsin 53706 (United States); Clark, M.; Seidlitz, B.; Wallace, J. [Department of Physics, University of Wisconsin, Madison, Wisconsin 53706 (United States)] [Department of Physics, University of Wisconsin, Madison, Wisconsin 53706 (United States)

    2014-04-15T23:59:59.000Z

    Differentially rotating flows of unmagnetized, highly conducting plasmas have been created in the Plasma Couette Experiment. Previously, hot-cathodes have been used to control plasma rotation by a stirring technique [C. Collins et al., Phys. Rev. Lett. 108, 115001 (2012)] on the outer cylindrical boundary—these plasmas were nearly rigid rotors, modified only by the presence of a neutral particle drag. Experiments have now been extended to include stirring from an inner boundary, allowing for generalized circular Couette flow and opening a path for both hydrodynamic and magnetohydrodynamic experiments, as well as fundamental studies of plasma viscosity. Plasma is confined in a cylindrical, axisymmetric, multicusp magnetic field, with T{sub e}?plasmas, and the experiment has already achieved Rm???65 and Pm?0.2?12. We present measurements of a self-consistent, rotation-induced, species-dependent radial electric field, which acts together with pressure gradient to provide the centripetal acceleration for the ions. The maximum flow speeds scale with the Alfvén critical ionization velocity, which occurs in partially ionized plasma. A hydrodynamic stability analysis in the context of the experimental geometry and achievable parameters is also explored.

  13. Diagnostics for Burning Plasma Physics Studies

    E-Print Network [OSTI]

    quality of data as in best present-day devices. · High quality, reliable information on many plasma parameters will have to provide control signals. · New information about the alpha-particles. · The neutron RESOLUTION ACCURACY Plasma current 0.1 ­ 17.5 MA Not applicable 1 ms 1% (Ip>1 MA) Total neutron flux 1x1014

  14. Measurements of an expanding surface flashover plasma

    SciTech Connect (OSTI)

    Harris, J. R., E-mail: john.harris@colostate.edu [Department of Electrical and Computer Engineering, Colorado State University, Fort Collins, Colorado 80523 (United States)

    2014-05-21T23:59:59.000Z

    A better understanding of vacuum surface flashover and the plasma produced by it is of importance for electron and ion sources, as well as advanced accelerators and other vacuum electronic devices. This article describes time-of-flight and biased-probe measurements made on the expanding plasma generated from a vacuum surface flashover discharge. The plasma expanded at velocities of 1.2–6.5?cm/?s, and had typical densities of 10{sup 10}–10{sup 12}?cm{sup ?3}. The expansion velocity of the plasma leading edge often exhibited a sharp increase at distances of about 50?mm from the discharge site. Comparison with biased-probe data suggests that, under most conditions, the plasma leading edge was dominated by negative ions, with the apparent increase in velocity being due to fast H{sup ?} overtaking slower, heavier ions. In some cases, biased-probe data also showed abrupt discontinuities in the plasma energy distribution co-located with large changes in the intercepted plasma current, suggesting the presence of a shock in the leading edge of the expanding plasma.

  15. Robotics Science & Technology for Burning Plasma Experiments

    E-Print Network [OSTI]

    Robotics Science & Technology for Burning Plasma Experiments J. N. Herndon, T. W. Burgess, M. M, General Atomics, San Diego, California. #12;Robotics Challenges in Burning Plasma Experiments · Control x x x x x x earthmoving equipment electric robots Conventional Machines DMHP Machines x x x x

  16. Princeton Plasma Physics Laboratory NSTX Experimental Proposal

    E-Print Network [OSTI]

    Princeton Plasma Physics Laboratory

    is to apply small oscillations in the plasma vertical position, in order to trigger ELMs. The vertical oscillations will be generated in one of two ways i) by requesting rapid variations in the plasma vertical position, or ii) explicitly adding a "kick" voltage to the PF-3 coil, and then allowing the vertical

  17. Atomic processes in high-density plasmas

    SciTech Connect (OSTI)

    More, R.M.

    1982-12-21T23:59:59.000Z

    This review covers dense atomic plasmas such as that produced in inertial confinement fusion. The target implosion physics along with the associated atomic physics, i.e., free electron collision phenomena, electron states I, electron states II, and nonequilibrium plasma states are described. (MOW)

  18. Plasma discharge self-cleaning filtration system

    DOE Patents [OSTI]

    Cho, Young I.; Fridman, Alexander; Gutsol, Alexander F.; Yang, Yong

    2014-07-22T23:59:59.000Z

    The present invention is directed to a novel method for cleaning a filter surface using a plasma discharge self-cleaning filtration system. The method involves utilizing plasma discharges to induce short electric pulses of nanoseconds duration at high voltages. These electrical pulses generate strong Shockwaves that disintegrate and dislodge particulate matter located on the surface of the filter.

  19. ISRAELI PLASMA SCIENCE AND TECHNOLOGY ASSOCIATION

    E-Print Network [OSTI]

    AND APPLICATIONS H.I.T. ­ Holon Institute of Technology February 4th, 2013 BOOK OF ABSTRACTS http://plasma-gate.weizmann.ac.il/ipsta2013/ #12;15th Israeli Conference on Plasma Science and Applications, HIT, Holon, February 4th , 2013 2 Science and Applications, HIT, Holon, February 4th , 2013 3 PREFACE We are delighted to host the 15th

  20. Magnetic multipole redirector of moving plasmas

    DOE Patents [OSTI]

    Crow, James T. (Albuquerque, NM); Mowrer, Gary R. (Cedar Crest, NM)

    1999-01-01T23:59:59.000Z

    A method and apparatus for redirecting moving plasma streams using a multiple array of magnetic field generators (e.g., permanent magnets or current bearing wires). Alternate rows of the array have opposite magnetic field directions. A fine wire mesh may be employed to focus as well as redirect the plasma.

  1. Gravimagnetic shock waves in the anisotropic plasma

    E-Print Network [OSTI]

    Yu. G. Ignatyev; D. N. Gorokhov

    2011-01-01T23:59:59.000Z

    The relativistic magnetohydrodynamic equations for the anisotropic magnetoactive plasma are obtained and accurately integrated in the plane gravitational wave metrics. The dependence of the induction mechanism of the gravimagnetic shock waves on the degree of the magnetoactive plasma anisotropy is analyzed.

  2. Quarkonia in a deconfined gluonic plasma

    E-Print Network [OSTI]

    S. Datta; A. Jakovac; F. Karsch; P. Petreczky

    2006-03-01T23:59:59.000Z

    We discuss lattice results on the properties of finite momentum charmonium states in a gluonic plasma. We also present preliminary results for bottomonium correlators and spectral functions in the plasma. Significant modifications of chi_b states are seen at temperatures of 1.5 Tc.

  3. Plasma response to electron energy filter in large volume plasma device

    SciTech Connect (OSTI)

    Sanyasi, A. K.; Awasthi, L. M.; Mattoo, S. K.; Srivastava, P. K.; Singh, S. K.; Singh, R.; Kaw, P. K. [Institute for Plasma Research, Gandhinagar, 382 428 Gujarat (India)] [Institute for Plasma Research, Gandhinagar, 382 428 Gujarat (India)

    2013-12-15T23:59:59.000Z

    An electron energy filter (EEF) is embedded in the Large Volume Plasma Device plasma for carrying out studies on excitation of plasma turbulence by a gradient in electron temperature (ETG) described in the paper of Mattoo et al. [S. K. Mattoo et al., Phys. Rev. Lett. 108, 255007 (2012)]. In this paper, we report results on the response of the plasma to the EEF. It is shown that inhomogeneity in the magnetic field of the EEF switches on several physical phenomena resulting in plasma regions with different characteristics, including a plasma region free from energetic electrons, suitable for the study of ETG turbulence. Specifically, we report that localized structures of plasma density, potential, electron temperature, and plasma turbulence are excited in the EEF plasma. It is shown that structures of electron temperature and potential are created due to energy dependence of the electron transport in the filter region. On the other hand, although structure of plasma density has origin in the particle transport but two distinct steps of the density structure emerge from dominance of collisionality in the source-EEF region and of the Bohm diffusion in the EEF-target region. It is argued and experimental evidence is provided for existence of drift like flute Rayleigh-Taylor in the EEF plasma.

  4. PLASMA DYNAMICS AND PLASMA WALL INTERACTION 130 Problems of Atomic Science and Technology. 2006, 6. Series: Plasma Physics (12), p. 130-134

    E-Print Network [OSTI]

    Harilal, S. S.

    PLASMA DYNAMICS AND PLASMA WALL INTERACTION 130 Problems of Atomic Science and Technology. 2006, 6. Series: Plasma Physics (12), p. 130-134 SIMULATION OF HIGH POWER DEPOSITION ON TARGET MATERIALS: APPLICATIONS IN MAGNETIC, INERTIAL FUSION, AND HIGH POWER PLASMA LITHOGRAPHY DEVICES Ahmed Hassanein Argonne

  5. Fuel gas production by microwave plasma in liquid

    SciTech Connect (OSTI)

    Nomura, Shinfuku; Toyota, Hiromichi; Tawara, Michinaga; Yamashita, Hiroshi; Matsumoto, Kenya [Graduate School of Science and Engineering, Ehime University, 3 Bunkyo-cho, Matsuyama, Ehime 790-8577 (Japan); Shikoku Industry and Technology Promotion Center, 2-5 Marunouchi, Takamatsu, Kagawa 760-0033 (Japan)

    2006-06-05T23:59:59.000Z

    We propose to apply plasma in liquid to replace gas-phase plasma because we expect much higher reaction rates for the chemical deposition of plasma in liquid than for chemical vapor deposition. A reactor for producing microwave plasma in a liquid could produce plasma in hydrocarbon liquids and waste oils. Generated gases consist of up to 81% hydrogen by volume. We confirmed that fuel gases such as methane and ethylene can be produced by microwave plasma in liquid.

  6. Optical boundary reconstruction of tokamak plasmas for feedback control of plasma position and shape

    SciTech Connect (OSTI)

    Hommen, G.; Baar, M. de [Control Systems Technology Group, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven (Netherlands); FOM Institute for Plasma Physics ''Rijnhuizen'', Association EURATOM-FOM, Trilateral Euregio Cluster, P.O. Box 1207, 3430 BE Nieuwegein (Netherlands); Nuij, P.; Steinbuch, M. [Control Systems Technology Group, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven (Netherlands); McArdle, G.; Akers, R. [EURATOM/CCFE Fusion Association, Culham Science Centre, Abingdon, Oxfordshire OX14 3DB (United Kingdom)

    2010-11-15T23:59:59.000Z

    A new diagnostic is developed to reconstruct the plasma boundary using visible wavelength images. Exploiting the plasma's edge localized and toroidally symmetric emission profile, a new coordinate transform is presented to reconstruct the plasma boundary from a poloidal view image. The plasma boundary reconstruction is implemented in MATLAB and applied to camera images of Mega-Ampere Spherical Tokamak discharges. The optically reconstructed plasma boundaries are compared to magnetic reconstructions from the offline reconstruction code EFIT, showing very good qualitative and quantitative agreement. Average errors are within 2 cm and correlation is high. In the current software implementation, plasma boundary reconstruction from a single image takes 3 ms. The applicability and system requirements of the new optical boundary reconstruction, called OFIT, for use in both feedback control of plasma position and shape and in offline reconstruction tools are discussed.

  7. Two-dimensional-spatial distribution measurement of electron temperature and plasma density in low temperature plasmas

    SciTech Connect (OSTI)

    Kim, Young-Cheol [Department of Nanoscale Semiconductor Engineering, Hanyang University, 17 Haengdang-dong, Seongdong-gu, Seoul 133-791 (Korea, Republic of); Jang, Sung-Ho; Oh, Se-Jin; Lee, Hyo-Chang; Chung, Chin-Wook [Department of Electrical Engineering, Hanyang University, 17 Haengdang-dong, Seongdong-gu, Seoul 133-791 (Korea, Republic of)

    2013-05-15T23:59:59.000Z

    A real-time measurement method for two-dimensional (2D) spatial distribution of the electron temperature and plasma density was developed. The method is based on the floating harmonic method and the real time measurement is achieved with little plasma perturbation. 2D arrays of the sensors on a 300 mm diameter wafer-shaped printed circuit board with a high speed multiplexer circuit were used. Experiments were performed in an inductive discharge under various external conditions, such as powers, gas pressures, and different gas mixing ratios. The results are consistent with theoretical prediction. Our method can measure the 2D spatial distribution of plasma parameters on a wafer-level in real-time. This method can be applied to plasma diagnostics to improve the plasma uniformity of plasma reactors for plasma processing.

  8. Effect of argon addition on plasma parameters and dust charging in hydrogen plasma

    SciTech Connect (OSTI)

    Kakati, B., E-mail: bharatkakati15@gmail.com; Kausik, S. S.; Saikia, B. K. [Centre of Plasma Physics-Institute for Plasma Research, Nazirakhat, Sonapur, Kamrup 782402, Assam (India); Bandyopadhyay, M.; Saxena, Y. C. [Institute for Plasma Research, Bhat, Gandhinagar 382 428 (India)

    2014-10-28T23:59:59.000Z

    Experimental results on effect of adding argon gas to hydrogen plasma in a multi-cusp dusty plasma device are reported. Addition of argon modifies plasma density, electron temperature, degree of hydrogen dissociation, dust current as well as dust charge. From the dust charging profile, it is observed that the dust current and dust charge decrease significantly up to 40% addition of argon flow rate in hydrogen plasma. But beyond 40% of argon flow rate, the changes in dust current and dust charge are insignificant. Results show that the addition of argon to hydrogen plasma in a dusty plasma device can be used as a tool to control the dust charging in a low pressure dusty plasma.

  9. Plasma Mass Filters For Nuclear Waste Reprocessing

    SciTech Connect (OSTI)

    Abraham J. Fetterman and Nathaniel J. Fisch

    2011-05-25T23:59:59.000Z

    Practical disposal of nuclear waste requires high-throughput separation techniques. The most dangerous part of nuclear waste is the fission product, which contains the most active and mobile radioisotopes and produces most of the heat. We suggest that the fission products could be separated as a group from nuclear waste using plasma mass filters. Plasmabased processes are well suited to separating nuclear waste, because mass rather than chemical properties are used for separation. A single plasma stage can replace several stages of chemical separation, producing separate streams of bulk elements, fission products, and actinoids. The plasma mass filters may have lower cost and produce less auxiliary waste than chemical processing plants. Three rotating plasma configurations are considered that act as mass filters: the plasma centrifuge, the Ohkawa filter, and the asymmetric centrifugal trap.

  10. Plasma Mass Filters For Nuclear Waste Reprocessing

    SciTech Connect (OSTI)

    Abraham J. Fetterman and Nathaniel J. Fisch

    2011-05-26T23:59:59.000Z

    Practical disposal of nuclear waste requires high-throughput separation techniques. The most dangerous part of nuclear waste is the fission product, which contains the most active and mobile radioisotopes and produces most of the heat. We suggest that the fission products could be separated as a group from nuclear waste using plasma mass filters. Plasmabased processes are well suited to separating nuclear waste, because mass rather than chemical properties are used for separation. A single plasma stage can replace several stages of chemical separation, producing separate streams of bulk elements, fission products, and actinoids. The plasma mass filters may have lower cost and produce less auxiliary waste than chemical processing plants. Three rotating plasma configurations are considered that act as mass filters: the plasma centrifuge, the Ohkawa filter, and the asymmetric centrifugal trap.

  11. Ionization Equilibrium Timescales in Collisional Plasmas

    E-Print Network [OSTI]

    Smith, Randall K

    2010-01-01T23:59:59.000Z

    Astrophysical shocks or bursts from a photoionizing source can disturb the typical collisional plasma found in galactic interstellar media or the intergalactic medium. The spectrum emitted by this plasma contains diagnostics that have been used to determine the time since the disturbing event, although this determination becomes uncertain as the elements in the plasma return to ionization equilibrium. A general solution for the equilibrium timescale for each element arises from the elegant eigenvector method of solution to the problem of a non-equilibrium plasma described by Masai (1984) and Hughes & Helfand (1985). In general the ionization evolution of an element Z in a constant electron temperature plasma is given by a coupled set of Z+1 first order differential equations. However, they can be recast as Z uncoupled first order differential equations using an eigenvector basis for the system. The solution is then Z separate exponential functions, with the time constants given by the eigenvalues of the r...

  12. NSTX Plasma Response to Lithium Coated Divertor

    SciTech Connect (OSTI)

    H.W. Kugel, M.G. Bell, J.P. Allain, R.E. Bell, S. Ding, S.P. Gerhardt, M.A. Jaworski, R. Kaita, J. Kallman, S.M. Kaye, B.P. LeBlanc, R. Maingi, R. Majeski, R. Maqueda, D.K. Mansfield, D. Mueller, R. Nygren, S.F. Paul, R. Raman, A.L. Roquemore, S.A. Sabbagh, H. Schneider, C.H. Skinner, V.A. Soukhanovskii, C.N. Taylor, J.R. Timberlak, W.R. Wampler, L.E. Zakharov, S.J. Zweben, and the NSTX Research Team

    2011-01-21T23:59:59.000Z

    NSTX experiments have explored lithium evaporated on a graphite divertor and other plasma facing components in both L- and H- mode confinement regimes heated by high-power neutral beams. Improvements in plasma performance have followed these lithium depositions, including a reduction and eventual elimination of the HeGDC time between discharges, reduced edge neutral density, reduced plasma density, particularly in the edge and the SOL, increased pedestal electron and ion temperature, improved energy confinement and the suppression of ELMs in the H-mode. However, with improvements in confinement and suppression of ELMs, there was a significant secular increase in the effective ion charge Zeff and the radiated power in H-mode plasmas as a result of increases in the carbon and medium-Z metallic impurities. Lithium itself remained at a very low level in the plasma core, <0.1%. Initial results are reported from operation with a Liquid Lithium Divertor (LLD) recently installed.

  13. Plasma-based EUV light source

    DOE Patents [OSTI]

    Shumlak, Uri (Seattle, WA); Golingo, Raymond (Seattle, WA); Nelson, Brian A. (Mountlake Terrace, WA)

    2010-11-02T23:59:59.000Z

    Various mechanisms are provided relating to plasma-based light source that may be used for lithography as well as other applications. For example, a device is disclosed for producing extreme ultraviolet (EUV) light based on a sheared plasma flow. The device can produce a plasma pinch that can last several orders of magnitude longer than what is typically sustained in a Z-pinch, thus enabling the device to provide more power output than what has been hitherto predicted in theory or attained in practice. Such power output may be used in a lithography system for manufacturing integrated circuits, enabling the use of EUV wavelengths on the order of about 13.5 nm. Lastly, the process of manufacturing such a plasma pinch is discussed, where the process includes providing a sheared flow of plasma in order to stabilize it for long periods of time.

  14. LuIZ ANDR BARROSO & HANDHELD + LANDHELD =

    E-Print Network [OSTI]

    Barroso, Luiz André

    16 LuIZ ANDRé BARROSO & uRS HöLZLE HANDHELD + LANDHELD = CLOuD COMPuTING The machinery that powers

  15. Approximate Bivariate Factorization, a Geometric Andre Galligo

    E-Print Network [OSTI]

    Hoeij, Mark van

    INRIA) Laboratoire de Mathematiques Parc Valrose 06108 Nice cedex 02, France galligo@unice.fr Mark van, Maple Code 1. INTRODUCTION 1.1 Approximate algebra Over the past ten years symbolic-numeric algorithms

  16. FUNDAMENTOS MATEMTICOS Andrs Jaramillo Botero, 2005 1

    E-Print Network [OSTI]

    Goddard III, William A.

    .......................................................................7 ALGEBRA DE VECTORES...........................................................................8 Transformaciones Lineales y Espacios Vectoriales...........................................9 Dependencia e Independencia Lineal ............................................................10 Sistemas de

  17. SKELL, Specifically Dave Clarke and Andres Loh

    E-Print Network [OSTI]

    Löh, Andres

    = Unit gmap{|:+:|} gmapA gmapB (Inl a) = Inl (gmapA a) gmap{|:+:|} gmapA gmapB (Inr b) = Inr (gmapB b gmap Sum :: a b c d . (a c) (b d) a:+:b c:+:d case gmap Sum gmapA gmapB (Inl a) = Inl (gmapA a = Inl a | Inr b data a :*: b = a :*: b data Unit = Unit data Con a = Con a data Label a = Label

  18. Aitor Arrazola Durana Andrs Arturo Lanzs Camaioni

    E-Print Network [OSTI]

    Seoane, Javier

    mariposas. Cambios fisiológicos: menor asignación de biomasa a las hojas y más a los tallos, aumento de biomasa aérea vegetal. #12; Aumento del nivel del mar reducirá muchos humedales en EEUU, además de

  19. Marc-Arthur Diaye, Andr Lapidus

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    's "contraction" and "expansion" consistency conditions, also known, following Amartya Sen, as the and properties, are equivalent to the weak congruence axiom (see Sen 1971: 314), so that the choice function C

  20. Marc Le Roy1 , Andr Prennec2

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    . ABSTRACT : This paper presents a technique to analyze and optimize Continuously Varying Transmission Lines applied the Continuously Varying Transmission Lines (CVTL) method for low-pass filters carried out in the successive steps. Moreover, Continuously Varying Coupled Transmission Lines Applied to Design Band

  1. Jean-Marc ANDR Robert JOUMARD

    E-Print Network [OSTI]

    Boyer, Edmond

    , hour and season. This model is provided for the current gasoline and diesel cars. The final model, driving cycle, catalyst, diesel, passenger car, ambient temperature, engine temperature, model, speed

  2. SOLVARMEANLG VED BIOMASSEFYREDE FJERNVARMECENTRALER OG ANDRE STORE

    E-Print Network [OSTI]

    / Danmarks Tekniske Universitet Videncenter for Halm- og Flisfyring v/ Teknologisk Institut Rambøll Jørgen Bladt A/S har stået for prisoplysningerne. Endvidere har Videncenter for Halm- og Flisfyring ved

  3. Plasma Chemistry and Plasma Processing, Vol. 22, No. 4, December 2002 ( 2002) Ozone Production in the Positive DC Corona

    E-Print Network [OSTI]

    Chen, Junhong

    Plasma Chemistry and Plasma Processing, Vol. 22, No. 4, December 2002 ( 2002) Ozone Production the distribution of ozone, but does not affect the rate of production. KEY WORDS: Corona discharge; corona plasma

  4. Laser Plasma Particle Accelerators: Large Fields for Smaller Facility Sources

    E-Print Network [OSTI]

    Geddes, Cameron G.R.

    2010-01-01T23:59:59.000Z

    essential understanding of accelerator physics to advanceof high- gradient, laser plasma particle accelerators.to conventional particle accelerators, plasmas can sustain

  5. Ultrafast Diagnostics for Electron Beams from Laser Plasma Accelerators

    E-Print Network [OSTI]

    Matlis, N. H.

    2011-01-01T23:59:59.000Z

    for Laser Plasma Accelerators," in this proceedings, 2010.Based Laser Wakefield Accelerator Electron Beam EnergyMotion in a Laser-Plasma Accelerator," in this proceedings,

  6. Physics of Intrinsic Plasma Rotation Explained for the First...

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

    Physics of Intrinsic Plasma Rotation Explained for First Time Physics of Intrinsic Plasma Rotation Explained for First Time Key understanding for modeling future fusion reactors...

  7. Long Plasma Source for Heavy Ion Beam Charge Neutralization

    E-Print Network [OSTI]

    Efthimion, P.C.

    2009-01-01T23:59:59.000Z

    neutralizing plasma column the heavy ion beam can focus to aPlasmas are a source of unbound electrons for charge neutralizing intense heavy ion beams to focus

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

    E-Print Network [OSTI]

    Leemans, Wim P.; Downer, Michael; Siders, Craig

    2008-01-01T23:59:59.000Z

    be an important focus of laser-plasma acceleration researchfocus. In both cases, light regions of the image ionized and heated the plasma,

  9. High Energy Density Laboratory Plasmas Program | National Nuclear...

    National Nuclear Security Administration (NNSA)

    Photo Gallery Jobs Apply for Our Jobs Our Jobs Working at NNSA Blog Home High Energy Density Laboratory Plasmas Program High Energy Density Laboratory Plasmas Program...

  10. SciTech Connect: Research in computational plasma physics. Progress...

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

    Research in computational plasma physics. Progress report, June 1, 1972-- May 31, 1973. Citation Details In-Document Search Title: Research in computational plasma physics....

  11. Study of internal magnetic field via polarimetry in fusion plasmas

    E-Print Network [OSTI]

    Zhang, Jie

    2013-01-01T23:59:59.000Z

    to thank the whole plasma research group at STRB and Rehab,interest to the tokamak plasma research, since it directly

  12. ambient plasma technique: Topics by E-print Network

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

    for motional Stark effect Plasma Physics and Fusion Websites Summary: John Howard Plasma Research Laboratory, Australian National University, Canberra ACT 0200, Australia the...

  13. astrophysical plasmas mhd: Topics by E-print Network

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

    Summary: The Madison plasma dynamo experiment (MPDX) is a novel, versatile, basic plasma research device designed to investigate flow driven magnetohydrodynamic (MHD)...

  14. astrophysical applications plasma: Topics by E-print Network

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

    Summary: The Madison plasma dynamo experiment (MPDX) is a novel, versatile, basic plasma research device designed to investigate flow driven magnetohydrodynamic (MHD)...

  15. arc plasma study: Topics by E-print Network

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

    Summary: The Madison plasma dynamo experiment (MPDX) is a novel, versatile, basic plasma research device designed to investigate flow driven magnetohydrodynamic (MHD)...

  16. Performance Evaluation of the Delphi Non-Thermal Plasma System...

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

    Performance Evaluation of the Delphi Non-Thermal Plasma System Under Transient and Steady State Conditions Performance Evaluation of the Delphi Non-Thermal Plasma System Under...

  17. Human Plasma N-Glycoproteome Analysis by Immunoaffinity Subtraction...

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

    Plasma N-Glycoproteome Analysis by Immunoaffinity Subtraction, Hydrazide Chemistry, and Mass Spectrometry. Human Plasma N-Glycoproteome Analysis by Immunoaffinity Subtraction,...

  18. Dynamometer Evaluation of Plasma-Catalyst for Diesel NOx Reduction...

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

    Dynamometer Evaluation of Plasma-Catalyst for Diesel NOx Reduction Dynamometer Evaluation of Plasma-Catalyst for Diesel NOx Reduction 2003 DEER Conference Presentation: Ford Motor...

  19. Non-thermal plasma based technologies for the aftertreatment...

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

    Non-thermal plasma based technologies for the aftertreatment of diesel exhaust particulates and NOx Non-thermal plasma based technologies for the aftertreatment of diesel exhaust...

  20. CORRELATIONS IN CONFINED QUANTUM PLASMAS

    SciTech Connect (OSTI)

    DUFTY J W

    2012-01-11T23:59:59.000Z

    This is the final report for the project 'Correlations in Confined Quantum Plasmas', NSF-DOE Partnership Grant DE FG02 07ER54946, 8/1/2007 - 7/30/2010. The research was performed in collaboration with a group at Christian Albrechts University (CAU), Kiel, Germany. That collaboration, almost 15 years old, was formalized during the past four years under this NSF-DOE Partnership Grant to support graduate students at the two institutions and to facilitate frequent exchange visits. The research was focused on exploring the frontiers of charged particle physics evolving from new experimental access to unusual states associated with confinement. Particular attention was paid to combined effects of quantum mechanics and confinement. A suite of analytical and numerical tools tailored to the specific inquiry has been developed and employed

  1. The U.S. Burning Plasma Program C.M. Greenfield

    E-Print Network [OSTI]

    for burning plasma research ­ US Burning Plasma Organization (created 2005): currently 283 registered members

  2. Interactions of Plasma-Generated Species on Porous Dielectric Thin Films

    E-Print Network [OSTI]

    Lee, Joe

    2013-01-01T23:59:59.000Z

    Plasma chemistries using fluorocarbon containing gases haveetching often uses fluorocarbon-containing plasmas. 77,78

  3. A large volume uniform plasma generator for the experiments of electromagnetic wave propagation in plasma

    SciTech Connect (OSTI)

    Yang Min; Li Xiaoping; Xie Kai; Liu Donglin [School of Electronical and Mechanical Engineering, Xidian University, Xi'an Shaanxi 710071 (China); Liu Yanming [School of Telecommunications Engineering, Xidian University, Xi'an Shaanxi 710071 (China)

    2013-01-15T23:59:59.000Z

    A large volume uniform plasma generator is proposed for the experiments of electromagnetic (EM) wave propagation in plasma, to reproduce a 'black out' phenomenon with long duration in an environment of the ordinary laboratory. The plasma generator achieves a controllable approximate uniform plasma in volume of 260 mm Multiplication-Sign 260 mm Multiplication-Sign 180 mm without the magnetic confinement. The plasma is produced by the glow discharge, and the special discharge structure is built to bring a steady approximate uniform plasma environment in the electromagnetic wave propagation path without any other barriers. In addition, the electron density and luminosity distributions of plasma under different discharge conditions were diagnosed and experimentally investigated. Both the electron density and the plasma uniformity are directly proportional to the input power and in roughly reverse proportion to the gas pressure in the chamber. Furthermore, the experiments of electromagnetic wave propagation in plasma are conducted in this plasma generator. Blackout phenomena at GPS signal are observed under this system and the measured attenuation curve is of reasonable agreement with the theoretical one, which suggests the effectiveness of the proposed method.

  4. Cold atmospheric plasma in cancer therapy

    SciTech Connect (OSTI)

    Keidar, Michael; Shashurin, Alex; Volotskova, Olga [Mechanical and Aerospace Engineering, George Washington University, Washington DC 20052 (United States)] [Mechanical and Aerospace Engineering, George Washington University, Washington DC 20052 (United States); Ann Stepp, Mary [Medical School, George Washington University, Washington DC 20052 (United States)] [Medical School, George Washington University, Washington DC 20052 (United States); Srinivasan, Priya; Sandler, Anthony [Childrens National Medical Center, Washington DC 20010 (United States)] [Childrens National Medical Center, Washington DC 20010 (United States); Trink, Barry [Head and Neck Cancer Research Division, Department of Otolaryngology, School of Medicine, Johns Hopkins University, Baltimore, Maryland 21205 (United States)] [Head and Neck Cancer Research Division, Department of Otolaryngology, School of Medicine, Johns Hopkins University, Baltimore, Maryland 21205 (United States)

    2013-05-15T23:59:59.000Z

    Recent progress in atmospheric plasmas has led to the creation of cold plasmas with ion temperature close to room temperature. This paper outlines recent progress in understanding of cold plasma physics as well as application of cold atmospheric plasma (CAP) in cancer therapy. Varieties of novel plasma diagnostic techniques were developed recently in a quest to understand physics of CAP. It was established that the streamer head charge is about 10{sup 8} electrons, the electrical field in the head vicinity is about 10{sup 7} V/m, and the electron density of the streamer column is about 10{sup 19} m{sup ?3}. Both in-vitro and in-vivo studies of CAP action on cancer were performed. It was shown that the cold plasma application selectively eradicates cancer cells in-vitro without damaging normal cells and significantly reduces tumor size in-vivo. Studies indicate that the mechanism of action of cold plasma on cancer cells is related to generation of reactive oxygen species with possible induction of the apoptosis pathway. It is also shown that the cancer cells are more susceptible to the effects of CAP because a greater percentage of cells are in the S phase of the cell cycle.

  5. Electromagnetic waves in a polydisperse dusty plasma

    SciTech Connect (OSTI)

    Prudskikh, V. V.; Shchekinov, Yu. A. [Department of Physics, Southern Federal University, Rostov on Don 344090 (Russian Federation)] [Department of Physics, Southern Federal University, Rostov on Don 344090 (Russian Federation)

    2013-10-15T23:59:59.000Z

    The properties of low-frequency electromagnetic waves in a polydisperse dusty plasma are studied. The dispersion relation for the waves propagating at an arbitrary angle to the external magnetic field is derived, with the coefficients explicitly determined by the dust-size distribution function. The dependence of wave dispersion on properties of the dust-size distribution function is analysed. It is shown that the cutoff for an oblique propagation in plasma with a wide scatter of dust sizes takes place at a much lower frequency than in a plasma with monosized dust particles. It is found that dispersion properties of a transversal magnetosonic wave mode around dust–cyclotron frequencies considerably differ from those in a plasma with monosized dust. In a plasma with low mass fraction of dust particles, the dispersion is smooth without the cutoff and the resonance intrinsic for a plasma with monosized dust. Increase of the dust fraction results in splitting of the dispersion curve on to two branches. Further increase of the dust fraction leads to emergence of the third branch located between the cutoffs and restricted from the lower and higher frequencies by two resonances. The dependence of the frequencies of cutoffs and resonances on the width of the dust-size distribution, its slope and the dust mass fraction are analysed. It is shown that the transparency frequency windows in a plasma with polydisperse dust are wider for transversal elecromagnetic waves, but narrower for longitudinal or oblique waves.

  6. A plasma process monitor/control system

    SciTech Connect (OSTI)

    Stevenson, J.O.; Ward, P.P.; Smith, M.L. [Sandia National Labs., Albuquerque, NM (United States); Markle, R.J. [Advanced Micro Devices, Inc., Austin, TX (United States)

    1997-08-01T23:59:59.000Z

    Sandia National Laboratories has developed a system to monitor plasma processes for control of industrial applications. The system is designed to act as a fully automated, sand-alone process monitor during printed wiring board and semiconductor production runs. The monitor routinely performs data collection, analysis, process identification, and error detection/correction without the need for human intervention. The monitor can also be used in research mode to allow process engineers to gather additional information about plasma processes. The plasma monitor can perform real-time control of support systems known to influence plasma behavior. The monitor can also signal personnel to modify plasma parameters when the system is operating outside of desired specifications and requires human assistance. A notification protocol can be selected for conditions detected in the plasma process. The Plasma Process Monitor/Control System consists of a computer running software developed by Sandia National Laboratories, a commercially available spectrophotometer equipped with a charge-coupled device camera, an input/output device, and a fiber optic cable.

  7. Large area atmospheric-pressure plasma jet

    DOE Patents [OSTI]

    Selwyn, Gary S. (Los Alamos, NM); Henins, Ivars (Los Alamos, NM); Babayan, Steve E. (Huntington Beach, CA); Hicks, Robert F. (Los Angeles, CA)

    2001-01-01T23:59:59.000Z

    Large area atmospheric-pressure plasma jet. A plasma discharge that can be operated at atmospheric pressure and near room temperature using 13.56 MHz rf power is described. Unlike plasma torches, the discharge produces a gas-phase effluent no hotter than 250.degree. C. at an applied power of about 300 W, and shows distinct non-thermal characteristics. In the simplest design, two planar, parallel electrodes are employed to generate a plasma in the volume therebetween. A "jet" of long-lived metastable and reactive species that are capable of rapidly cleaning or etching metals and other materials is generated which extends up to 8 in. beyond the open end of the electrodes. Films and coatings may also be removed by these species. Arcing is prevented in the apparatus by using gas mixtures containing He, which limits ionization, by using high flow velocities, and by properly spacing the rf-powered electrode. Because of the atmospheric pressure operation, there is a negligible density of ions surviving for a sufficiently long distance beyond the active plasma discharge to bombard a workpiece, unlike the situation for low-pressure plasma sources and conventional plasma processing methods.

  8. MPS213 - A Non-Thermal Plasma Application for the Royal Navy...

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

    21 ME2132 - DDO NTP - The Way Ahead NTP Treatment of Particulates Inlet Outlet no plasma Outlet plasma 0 1 2 3 4 5 6 7 Before After (no plasma) After (plasma) After (plasma) After...

  9. Development of a plasma panel radiation detector

    SciTech Connect (OSTI)

    Ball, Robert [University of Michigan; Beene, James R [ORNL; Ben Moshe, M. [Tel Aviv University; Benhammou, Yan [Tel Aviv University; Bensimon, B [Tel Aviv University; Chapman, J. Wehrley [University of Michigan; Etzion, E [Tel Aviv University; Ferretti, Claudio [University of Michigan; Friedman, Dr. Peter S. [Integrated Sensors, LLC; Levin, Daniel S. [University of Michigan; Silver, Yiftah [Tel Aviv University; Weaverdyck, Curtis [University of Michigan; Wetzel, R. [University of Michigan; Zhou, Bing [University of Michigan; Anderson, T [GE Measurement and Control Solutions; McKinny, K [GE Measurement and Control Solutions; Bentefour, E [Ion Beam Applications

    2014-01-01T23:59:59.000Z

    This article reports on the development and experimental results of commercial plasma display panels adapted for their potential use as micropattern gas radiation detectors. The plasma panel sensor (PPS) design and materials include glass substrates, metal electrodes and inert gas mixtures which provide a physically robust, hermetically sealed device. Plasma display panels used as detectors were tested with cosmic ray muons, beta rays and gamma rays, protons, and thermal neutrons. The results demonstrated rise times and time resolution of a few nanoseconds, as well as sub-millimeter spatial resolution compatible with the pixel pitch.

  10. The temperature dependence of equilibrium plasma density

    E-Print Network [OSTI]

    B. V. Vasiliev

    2002-03-17T23:59:59.000Z

    Temperature dependence of an electron-nuclear plasma equilibrium density is considered basing on known approaches, which are given in (1)(2). It is shown that at a very high temperature, which is characteristic for a star interior, the equilibrium plasma density is almost constant and equals approximately to $10^{25}$ particles per $cm^3$. At a relatively low temperature, which is characteristic for star surface, the equilibrium plasma density is in several orders lower and depends on temperature as $T^{3/2}$.

  11. Development of a plasma panel radiation detector

    E-Print Network [OSTI]

    R. Ball; J. R. Beene; M. Ben-Moshe; Y. Benhammou; R. Bensimon; J. W. Chapman; E. Etzion; C. Ferretti; P. S. Friedman; D. S. Levin; Y. Silver; R. L. Varner; C. Weaverdyck; R. Wetzel; B. Zhou; T. Anderson; K. McKinny; E. H. Bentefour

    2014-06-14T23:59:59.000Z

    This article reports on the development and experimental results of commercial plasma display panels adapted for their potential use as micropattern gas radiation detectors. The plasma panel sensors (PPS) design an materials include glass substrates, metal electrodes and inert gas mixtures which provide a physically robust, hermetically-sealed device. Plasma display panels used as detectors were tested with cosmic ray muons, beta rays and gamma rays, protons and thermal neutrons. The results demonstrated rise times and time resolution of a few nanoseconds, as well as sub-millimeter spatial resolution compatible with the pixel pitch.

  12. Quantum plasma effects in the classical regime

    E-Print Network [OSTI]

    G. Brodin; M. Marklund; G. Manfredi

    2008-02-01T23:59:59.000Z

    For quantum effects to be significant in plasmas it is often assumed that the temperature over density ratio must be small. In this paper we challenge this assumption by considering the contribution to the dynamics from the electron spin properties. As a starting point we consider a multicomponent plasma model, where electrons with spin up and spin down are regarded as different fluids. By studying the propagation of Alfv\\'{e}n wave solitons we demonstrate that quantum effects can survive in a relatively high-temperature plasma. The consequences of our results are discussed.

  13. Landau Diamagnetism of Degenerate Collisional Plasma

    E-Print Network [OSTI]

    A. V. Latyshev; A. A. Yushkanov

    2010-07-05T23:59:59.000Z

    For the first time the kinetic description of Landau diamagnetism for degenerate collisional plasma is given. The correct expression for transverse electric conductivity of the quantum plasma, found by authors (see arXiv:1002.1017 [math-ph] 4 Feb 2010) is used. In work S. Dattagupta, A.M. Jayannavar and N. Kumar [Current science, V. 80, No. 7, 10 April, 2001] was discussed the important problem of dissipation (collisions) influence on Landau diamagnetism. The analysis of this problem is given with the use of exact expression for transverse conductivity of quantum plasma.

  14. Hall Magnetohydrodynamics of weakly-ionized plasma

    E-Print Network [OSTI]

    B. P. Pandey; Mark Wardle

    2006-08-02T23:59:59.000Z

    We show that the Hall scale in a weakly ionized plasma depends on the fractional ionization of the medium and, Hall MHD description becomes important whenever the ion-neutral collision frequency is comparable to the ion-gyration frequency, or, the ion-neutral collisional mean free path is smaller than the ion gyro-radius. Wave properties of a weakly-ionized plasma also depends on the fractional ionization and plasma Hall parameters, and whistler mode is the most dominant mode in such a medium. Thus Hall MHD description will be important in astrophysical disks, dark molecular clouds, neutron star crusts, and, solar and planetary atmosphere.

  15. Relation between plasma plume density and gas flow velocity in atmospheric pressure plasma

    SciTech Connect (OSTI)

    Yambe, Kiyoyuki; Taka, Shogo; Ogura, Kazuo [Graduate School of Science and Technology, Niigata University, Niigata 950-2181 (Japan)] [Graduate School of Science and Technology, Niigata University, Niigata 950-2181 (Japan)

    2014-04-15T23:59:59.000Z

    We have studied atmospheric pressure plasma generated using a quartz tube, helium gas, and copper foil electrode by applying RF high voltage. The atmospheric pressure plasma in the form of a bullet is released as a plume into the atmosphere. To study the properties of the plasma plume, the plasma plume current is estimated from the difference in currents on the circuit, and the drift velocity is measured using a photodetector. The relation of the plasma plume density n{sub plu}, which is estimated from the current and the drift velocity, and the gas flow velocity v{sub gas} is examined. It is found that the dependence of the density on the gas flow velocity has relations of n{sub plu} ? log(v{sub gas}). However, the plasma plume density in the laminar flow is higher than that in the turbulent flow. Consequently, in the laminar flow, the density increases with increasing the gas flow velocity.

  16. James W. Van Dam US Burning Plasma Organization

    E-Print Network [OSTI]

    scenarios, ... · Diagnostics ­ High time/space resolution, velocity distribution measurements, ... · Plasma · Toroidal Alfvén Eigenmodes · Internal plasma diagnostic #12;Page 12 USBPO · Plasma ions and electrons: ­ TiJames W. Van Dam US Burning Plasma Organization US ITER Project Office Institute for Fusion Studies

  17. Diagnostics and modeling of plasma processes in ion sources

    E-Print Network [OSTI]

    Vertes, Akos

    Diagnostics and modeling of plasma processes in ion sources Akos Vertes*, Renaat Gijbels, and Fred and describe the underlying phys- icochemical processes. Plasma diagnostic methods were borrowed from plasma, Belgium I. INTRODUCTION Plasma ion sources are constantly growing in importance in the field of atomic

  18. Statement of Harold P. Furth Director, Princeton Plasma Physics Laboratory

    E-Print Network [OSTI]

    : .. _I Statement of Harold P. Furth Director, Princeton Plasma Physics Laboratory before base.) The new plasma-physics phenomena expected in burning plasmas are mainly due to the presence dense, very-hot-ion plasma regimes that have been achieved in TFTR are particularly well suited

  19. ECR plasma source for heavy ion beam charge neutralization

    E-Print Network [OSTI]

    Gilson, Erik

    plasmas are being considered as a medium for charge neutralizing heavy ion beams in order to focus beyond resonance. Keywords: Plasma focus; RF plasma; Beam charge neutralization 1. INTRODUCTION A possible heavyECR plasma source for heavy ion beam charge neutralization PHILIP C. EFTHIMION,1 ERIK GILSON,1

  20. Multiple pulse resonantly enhanced laser plasma wakefield acceleration

    SciTech Connect (OSTI)

    Corner, L.; Walczak, R.; Nevay, L. J.; Dann, S.; Hooker, S. M.; Bourgeois, N.; Cowley, J. [John Adams Institute for Accelerator Science, Oxford University, Denys Wilkinson Building, Keble Road, Oxford OX1 3RH (United Kingdom); Department of Physics, University of Oxford, Clarendon Laboratory, Parks Road, Oxford OX1 3PU (United Kingdom)

    2012-12-21T23:59:59.000Z

    We present an outline of experiments being conducted at Oxford University on multiple-pulse, resonantly-enhanced laser plasma wakefield acceleration. This method of laser plasma acceleration uses trains of optimally spaced low energy short pulses to drive plasma oscillations and may enable laser plasma accelerators to be driven by compact and efficient fibre laser sources operating at high repetition rates.

  1. Physics 782 Computer Simulation of Plasma CLASS DETAILS

    E-Print Network [OSTI]

    Cassak, Paul

    and refine physical understanding and intuition of phenomena encountered in plasma research." Two main

  2. LASER-PLASMA-ACCELERATOR-BASED COLLIDERS C. B. Schroeder

    E-Print Network [OSTI]

    Geddes, Cameron Guy Robinson

    LASER-PLASMA-ACCELERATOR-BASED COLLIDERS C. B. Schroeder , E. Esarey, Cs. T´oth, C. G. R. Geddes-generation linear col- lider based on laser-plasma-accelerators are discussed, and a laser-plasma-accelerator gamma-gamma () collider is considered. An example of the parameters for a 0.5 TeV laser-plasma-accelerator collider

  3. Plasma Waves in an Inhomogeneous Ionosphere Carl Caleman

    E-Print Network [OSTI]

    Plasma Waves in an Inhomogeneous Ionosphere Carl Caleman 8th April 2003 #12;Abstract The inhomogeneity of space plasma is the cause of interesting physical phenomena. The plasma in our ionosphere waves reaches the ionosphere, interacts with the local plasma there, and are reflected back again one

  4. Self-consistent quasi-particle model for relativistic plasma

    E-Print Network [OSTI]

    Vishnu M. Bannur

    2006-02-24T23:59:59.000Z

    Relativistic plasma with radiation at thermodynamic equilibrium is ageneral system of interest in astrophysics and high energy physics. We develop a new self-consistent quasi-particle model for such a system to take account of collective behaviour of plasma andthermodynamic properties are derived. It is applied to electrodynamic plasma and quark gluon plasma and compared with existing results.

  5. Plasma and Technology Programme National Laboratory for Sustainable Energy

    E-Print Network [OSTI]

    1 Plasma and Technology Programme National Laboratory for Sustainable Energy Technical University METHODS OF OZONE GENERATION BY MICRO-PLASMA CONCEPT Authors A. Fateev, A. Chiper, W. Chen and E. Stamate-1-6365 project devoted to plasma-assisted DeNOx. Ozone is as a key agent in plasma NOx reduction because

  6. Plasma momentum meter for momentum flux measurements

    DOE Patents [OSTI]

    Zonca, F.; Cohen, S.A.; Bennett, T.; Timberlake, J.R.

    1993-08-24T23:59:59.000Z

    An apparatus is described for measuring momentum flux from an intense plasma stream, comprising: refractory target means oriented normal to the flow of said plasma stream for bombardment by said plasma stream where said bombardment by said plasma stream applies a pressure to said target means, pendulum means for communicating a translational displacement of said target to a force transducer where said translational displacement of said target is transferred to said force transducer by an elongated member coupled to said target, where said member is suspended by a pendulum configuration means and where said force transducer is responsive to said translational displacement of said member, and force transducer means for outputting a signal representing pressure data corresponding to said displacement.

  7. Exploiting Laboratory and Heliophysics Plasma Synergies

    E-Print Network [OSTI]

    Dahlburg, Jill

    Recent advances in space-based heliospheric observations, laboratory experimentation, and plasma simulation codes are creating an exciting new cross-disciplinary opportunity for understanding fast energy release and transport ...

  8. Thermal Plasma Systems for Industrial Processes

    E-Print Network [OSTI]

    Fey, M. G.; Meyer, T. N.; Reed, W. H.; Philbrook, W. O.

    1982-01-01T23:59:59.000Z

    furnaces, extending from below 2000 F to almost any conceivably useful processing temperature, with efficiencies much higher than can be achieved with combustion heating equipment. Numerous applications for plasma systems exist in the chemical...

  9. Design of a cusped field plasma thruster

    E-Print Network [OSTI]

    Conte, Joseph Richard, III

    2012-01-01T23:59:59.000Z

    A plasma space propulsion thruster has been designed. It is classified as a Cusped Field Thruster (CFT), which refers to the geometry of the magnetic field that influences the flow of electrons and ions. The thruster was ...

  10. Princeton Plasma Physics Laboratory NSTX Experimental Proposal

    E-Print Network [OSTI]

    Princeton Plasma Physics Laboratory

    and that this may effect the energy confinement time as well as provide current drive. Of course, other effects mayPrinceton Plasma Physics Laboratory NSTX Experimental Proposal Title: CHI into an ohmic discharge

  11. Elmo bumpy square plasma confinement device

    DOE Patents [OSTI]

    Owen, L.W.

    1985-01-01T23:59:59.000Z

    The invention is an Elmo bumpy type plasma confinement device having a polygonal configuration of closed magnet field lines for improved plasma confinement. In the preferred embodiment, the device is of a square configuration which is referred to as an Elmo bumpy square (EBS). The EBS is formed by four linear magnetic mirror sections each comprising a plurality of axisymmetric assemblies connected in series and linked by 90/sup 0/ sections of a high magnetic field toroidal solenoid type field generating coils. These coils provide corner confinement with a minimum of radial dispersion of the confined plasma to minimize the detrimental effects of the toroidal curvature of the magnetic field. Each corner is formed by a plurality of circular or elliptical coils aligned about the corner radius to provide maximum continuity in the closing of the magnetic field lines about the square configuration confining the plasma within a vacuum vessel located within the various coils forming the square configuration confinement geometry.

  12. COALITION FOR PLASMA SCIENCE Fusion Power Associates

    E-Print Network [OSTI]

    · Materials: brochure, two-pagers, posters. · Web page (plasmacoalition.org): links to plasma sites, evaluated of the CPS web site ­ Ask for input on how to improve web page · Solicit for individual(s) to conduct

  13. Princeton Plasma Physics Laboratory NSTX Experimental Proposal

    E-Print Network [OSTI]

    Princeton Plasma Physics Laboratory

    in a "fixed wall" device is key for management of plasma-wall (i.e., divertor) interactions. In particular-H transition. The early times after this transition being generally blob-less. The proposed experiment intends

  14. Introduction to Plasma Dynamo, Reconnection and Shocks

    SciTech Connect (OSTI)

    Intrator, Thomas P. [Los Alamos National Laboratory

    2012-08-30T23:59:59.000Z

    In our plasma universe, most of what we can observe is composed of ionized gas, or plasma. This plasma is a conducting fluid, which advects magnetic fields when it flows. Magnetic structure occurs from the smallest planetary to the largest cosmic scales. We introduce at a basic level some interesting features of non linear magnetohydrodynamics (MHD). For example, in our plasma universe, dynamo creates magnetic fields from gravitationally driven flow energy in an electrically conducting medium, and conversely magnetic reconnection annihilates magnetic field and accelerates particles. Shocks occur when flows move faster than the local velocity (sonic or Alfven speed) for the propagation of information. Both reconnection and shocks can accelerate particles, perhaps to gigantic energies, for example as observed with 10{sup 20} eV cosmic rays.

  15. Characterization of BCl3/N-2 plasmas

    E-Print Network [OSTI]

    Sia, S. F.

    2003-08-15T23:59:59.000Z

    Optical emission spectroscopy, quadrupole mass spectrometry, and electron density measurements were used to study the effect of the percentage of N-2 on the characteristics of BCl3/N-2 plasmas and their resulting etch ...

  16. Propulsion mechanisms in a helicon plasma thruster

    E-Print Network [OSTI]

    Sinenian, Nareg

    2008-01-01T23:59:59.000Z

    Electric thrusters offer an attractive option for various in-space propulsion tasks due to their high thrust efficiencies. The performance characteristics of a compact electric thruster utilizing a helicon plasma source ...

  17. QCD plasma instability and thermalisation at heavy ion collisions

    E-Print Network [OSTI]

    Dietrich Bodeker; Kari Rummukainen

    2007-11-13T23:59:59.000Z

    Under suitable non-equilibrium conditions QCD plasma can develop plasma instabilities, where some modes of the plasma grow exponentially. It has been argued that these instabilities can play a significant role in the thermalisation of the plasma in heavy-ion collision experiments. We study the instability in SU(2) plasmas using the hard thermal loop effective lattice theory, which is suitable for studying real-time evolution of long wavelength modes in the plasma. We observe that under suitable conditions the plasma can indeed develop an instability which can grow to a very large magnitude, necessary for the rapid thermalisation in heavy-ion collisions.

  18. A model for transonic plasma flow

    SciTech Connect (OSTI)

    Guazzotto, Luca, E-mail: luca.guazzotto@rochester.edu [Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623 (United States)] [Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14623 (United States); Hameiri, Eliezer, E-mail: hameiri@cims.nyu.edu [Courant Institute of Mathematical Sciences, New York University, New York, New York 10012 (United States)] [Courant Institute of Mathematical Sciences, New York University, New York, New York 10012 (United States)

    2014-02-15T23:59:59.000Z

    A linear, two-dimensional model of a transonic plasma flow in equilibrium is constructed and given an explicit solution in the form of a complex Laplace integral. The solution indicates that the transonic state can be solved as an elliptic boundary value problem, as is done in the numerical code FLOW [Guazzotto et al., Phys. Plasmas 11, 604 (2004)]. Moreover, the presence of a hyperbolic region does not necessarily imply the presence of a discontinuity or any other singularity of the solution.

  19. Plasma flow switch experiment on Procyon

    SciTech Connect (OSTI)

    Benage, J.F. Jr.; Bowers, R.; Peterson, D. [and others

    1995-09-01T23:59:59.000Z

    This report presents the results obtained from a series of plasma flow switch experiments done on the Procyon explosive pulse power generator. These experiments involved switching into a fixed inductance dummy load and also into a dynamic implosion load. The results indicated that the switch did fairly well at switching current into the load, but the results for the implosion are more ambiguous. The results are compared to calculations and the implications for future plasma flow switch work are discussed.

  20. Transverse electric conductivity of quantum collisional plasmas

    E-Print Network [OSTI]

    A. V. Latyshev; A. A. Yushkanov

    2010-07-06T23:59:59.000Z

    Formulas for calculation of transverse dielectric function and transverse electric conductivity in quantum collisional plasmas under arbitrary degree of degeneracy of the electron gas are received. The Wigner - Vlasov - Boltzmann kinetic equation with collision integral in BGK (Bhatnagar, Gross and Krook) form in coordinate space is used. Various special cases are investigated. The case of fully degenerate quantum plasma was considered separately. Comparison with Lindhard's formula has been realized.

  1. Local fields in strongly coupled plasmas

    SciTech Connect (OSTI)

    Pollock, E.L.; Weisheit, J.C.

    1984-06-01T23:59:59.000Z

    Computer simulation techniques and important static properties of plasma microfields are discussed. The relevant timescales are introduced for dynamical atomic problems, and some time-dependent properties of microfields are discussed. In the last two sections of the paper these results are applied to two problems relevant to the spectroscopy of dense plasmas: (1) broadening of spectral lines, and (2) screening in inelastic electron-ion collisions.

  2. Advances and Challenges in Computational Plasma Science

    SciTech Connect (OSTI)

    W.M. Tang; V.S. Chan

    2005-01-03T23:59:59.000Z

    Scientific simulation, which provides a natural bridge between theory and experiment, is an essential tool for understanding complex plasma behavior. Recent advances in simulations of magnetically-confined plasmas are reviewed in this paper with illustrative examples chosen from associated research areas such as microturbulence, magnetohydrodynamics, and other topics. Progress has been stimulated in particular by the exponential growth of computer speed along with significant improvements in computer technology.

  3. A 1-D dusty plasma photonic crystal

    SciTech Connect (OSTI)

    Mitu, M. L.; Tico?, C. M. [National Institute for Laser, Plasma and Radiation Physics, 077125 Bucharest (Romania)] [National Institute for Laser, Plasma and Radiation Physics, 077125 Bucharest (Romania); Toader, D.; Banu, N.; Scurtu, A. [National Institute for Laser, Plasma and Radiation Physics, 077125 Bucharest (Romania) [National Institute for Laser, Plasma and Radiation Physics, 077125 Bucharest (Romania); Department of Physics, University of Bucharest, 077125 Bucharest (Romania)

    2013-09-21T23:59:59.000Z

    It is demonstrated numerically that a 1-D plasma crystal made of micron size cylindrical dust particles can, in principle, work as a photonic crystal for terahertz waves. The dust rods are parallel to each other and arranged in a linear string forming a periodic structure of dielectric-plasma regions. The dispersion equation is found by solving the waves equation with the boundary conditions at the dust-plasma interface and taking into account the dielectric permittivity of the dust material and plasma. The wavelength of the electromagnetic waves is in the range of a few hundred microns, close to the interparticle separation distance. The band gaps of the 1-D plasma crystal are numerically found for different types of dust materials, separation distances between the dust rods and rod diameters. The distance between levitated dust rods forming a string in rf plasma is shown experimentally to vary over a relatively wide range, from 650 ?m to about 1350 ?m, depending on the rf power fed into the discharge.

  4. Plasma wake field XUV radiation source

    DOE Patents [OSTI]

    Prono, Daniel S. (Los Alamos, NM); Jones, Michael E. (Los Alamos, NM)

    1997-01-01T23:59:59.000Z

    A XUV radiation source uses an interaction of electron beam pulses with a gas to create a plasma radiator. A flowing gas system (10) defines a circulation loop (12) with a device (14), such as a high pressure pump or the like, for circulating the gas. A nozzle or jet (16) produces a sonic atmospheric pressure flow and increases the density of the gas for interacting with an electron beam. An electron beam is formed by a conventional radio frequency (rf) accelerator (26) and electron pulses are conventionally formed by a beam buncher (28). The rf energy is thus converted to electron beam energy, the beam energy is used to create and then thermalize an atmospheric density flowing gas to a fully ionized plasma by interaction of beam pulses with the plasma wake field, and the energetic plasma then loses energy by line radiation at XUV wavelengths Collection and focusing optics (18) are used to collect XUV radiation emitted as line radiation when the high energy density plasma loses energy that was transferred from the electron beam pulses to the plasma.

  5. Scrape-off layer tokamak plasma turbulence

    SciTech Connect (OSTI)

    Bisai, N.; Singh, R.; Kaw, P. K. [Institute for Plasma Research, Bhat, Gandhinagar, Gujarat 382428 (India)

    2012-05-15T23:59:59.000Z

    Two-dimensional (2D) interchange turbulence in the scrape-off layer of tokamak plasmas and their subsequent contribution to anomalous plasma transport has been studied in recent years using electron continuity, current balance, and electron energy equations. In this paper, numerically it is demonstrated that the inclusion of ion energy equation in the simulation changes the nature of plasma turbulence. Finite ion temperature reduces floating potential by about 15% compared with the cold ion temperature approximation and also reduces the radial electric field. Rotation of plasma blobs at an angular velocity about 1.5 Multiplication-Sign 10{sup 5} rad/s has been observed. It is found that blob rotation keeps plasma blob charge separation at an angular position with respect to the vertical direction that gives a generation of radial electric field. Plasma blobs with high electron temperature gradients can align the charge separation almost in the radial direction. Influence of high ion temperature and its gradient has been presented.

  6. Termination of a Magnetized Plasma on a Neutral Gas: The End of the Plasma C. M. Cooper and W. Gekelman

    E-Print Network [OSTI]

    California at Los Angles, University of

    Termination of a Magnetized Plasma on a Neutral Gas: The End of the Plasma C. M. Cooper and W of a confining magnetic field. This is the first experiment to measure plasma termination within a neutral gas by a lanthanum hexaboride (LaB6) cathode terminates entirely within a neutral helium gas. The plasma is weakly

  7. 518 IEEE TRANSACTIONS ON PLASMA SCIENCE, VOL. 33, NO. 2, APRIL 2005 Plasma Dynamics During Breakdown in

    E-Print Network [OSTI]

    Kushner, Mark

    , lamp, modeling, plasma. METAL halide arc lamps are widely used sources of in- door and large area plasma hydrodynamics model was used to investigate breakdown in metal halide lamp. Images depicting518 IEEE TRANSACTIONS ON PLASMA SCIENCE, VOL. 33, NO. 2, APRIL 2005 Plasma Dynamics During

  8. Contrib. Plasma Phys. 52, No. 10, 789 794 (2012) / DOI 10.1002/ctpp.201200076 Recent Progress in Complex Plasmas

    E-Print Network [OSTI]

    Fehske, Holger

    " at the Universities in Greifswald and Kiel as well as at the Leibniz-Institute for Plasma Research and Technology interacting with solid surfaces, see Fig. 1. The importance of complex plasma research derives from of nanotechnology including plasma-assisted deposition or etching. The 2007 review on plasma research and its

  9. Autumn College on Plasma Physics, ICTP 2005 Generation and dynamics of large scale flows in magnetized plasmas

    E-Print Network [OSTI]

    EURATOM -- Risø National Laboratory Optics and Plasma Research Department, OPL-128 DK-4000 Roskilde

  10. Turbulence-driven shear flow and self-regulating drift wave turbulence in a cylindrical plasma device

    E-Print Network [OSTI]

    Yan, Zheng

    2009-01-01T23:59:59.000Z

    Plasma diagnostics . . . . . . . . . . . . . . . . . . . .Principles of Plasma Diagnostics (Cambridge Universityend of the machine. Plasma diagnostics Multi-tip Langmuir

  11. INSTITUTE OF PHYSICS PUBLISHING PLASMA SOURCES SCIENCE AND TECHNOLOGY Plasma Sources Sci. Technol. 16 (2007) 233239 doi:10.1088/0963-0252/16/2/004

    E-Print Network [OSTI]

    Choueiri, Edgar

    -pinch [3], spheromak [4] and plasma opening switch [5]. The plasma source used here is very repeatable [6

  12. Plasmas in Multiphase Media: Bubble Enhanced Discharges in Liquids and Plasma/Liquid Phase Boundaries

    SciTech Connect (OSTI)

    Kushner, Mark Jay [University of Michigan] [University of Michigan

    2014-07-10T23:59:59.000Z

    In this research project, the interaction of atmospheric pressure plasmas with multi-phase media was computationally investigated. Multi-phase media includes liquids, particles, complex materials and porous surfaces. Although this investigation addressed fundamental plasma transport and chemical processes, the outcomes directly and beneficially affected applications including biotechnology, medicine and environmental remediation (e.g., water purification). During this project, we made advances in our understanding of the interaction of atmospheric pressure plasmas in the form of dielectric barrier discharges and plasma jets with organic materials and liquids. We also made advances in our ability to use computer modeling to represent these complex processes. We determined the method that atmospheric pressure plasmas flow along solid and liquid surfaces, and through endoscopic like tubes, deliver optical and high energy ion activation energy to organic and liquid surfaces, and produce reactivity in thin liquid layers, as might cover a wound. We determined the mechanisms whereby plasmas can deliver activation energy to the inside of liquids by sustaining plasmas in bubbles. These findings are important to the advancement of new technology areas such as plasma medicine

  13. Final Progress Report for Ionospheric Dusty Plasma In the Laboratory [Smokey Plasma

    SciTech Connect (OSTI)

    Robertson, Scott [Professor

    2010-09-28T23:59:59.000Z

    “Ionospheric Dusty Plasma in the Laboratory” is a research project with the purpose of finding and reproducing the characteristics of plasma in the polar mesosphere that is unusually cold (down to 140 K) and contains nanometer-sized dust particles. This final progress report summarizes results from four years of effort that include a final year with a no-cost extension.

  14. Study on plasma parameters and dust charging in an electrostatically plugged multicusp plasma device

    SciTech Connect (OSTI)

    Kakati, B.; Kausik, S. S.; Saikia, B. K. [Centre of Plasma Physics, Institute for Plasma Research, Nazirakhat, Sonapur-782 402, Kamrup, Assam (India); Bandyopadhyay, M. [ITER-India, Institute for Plasma Research, Bhat, Gandhinagar- 382 428 (India)

    2011-06-15T23:59:59.000Z

    The effect of the electrostatic confinement potential on the charging of dust grains and its relationship with the plasma parameters has been studied in an electrostatically plugged multicusp dusty plasma device. Electrostatic plugging is implemented by biasing the electrically isolated magnetic multicusp channel walls. The experimental results show that voltage applied to the channel walls can be a controlling parameter for dust charging.

  15. Transversal plasma resonance in a nonmagnetized plasma and possibilities of practical employment of it

    E-Print Network [OSTI]

    F. F. Mende

    2005-06-09T23:59:59.000Z

    It is shown that in a nonmagnetized plasma, beside the longitudinal Langmuir resonance, there may also exist the transversal resonance. Both these resonance kinds are degenerated. Employment of the transversal resonance makes it possible to design resonators and filters, as well as powerful single-frequency lasers operating on the basis of collective oscillations of plasma.

  16. Microscopic Motion of Liquid Metal Plasma Facing Components In A Diverted Plasma

    SciTech Connect (OSTI)

    Jaworski, M A; Morley, N B; Abrams, T; Kaita, R; Kallman, J; Kugel, H; Majeski, R

    2010-09-22T23:59:59.000Z

    Liquid metal plasma facing components (PFCs) have been identified as an alternative material for fusion plasma experiments. The use of a liquid conductor where significant magnetic fields are present is considered risky, with the possibility of macroscopic fluid motion and possible ejection into the plasma core. Analysis is carried out on thermoelectric magnetohydrodynamic (TEMHD) forces caused by temperature gradients in the liquid-container system itself in addition to scrape-off-layer currents interacting with the PFC from a diverted plasma. Capillary effects at the liquid-container interface will be examined which govern droplet ejection criteria. Stability of the interface is determined using linear stability methods. In addition to application to liquidmetal PFCs, thin film liquidmetal effects have application to current and future devices where off-normal events may liquefy portions of the first wall and other plasma facing components.

  17. Renormalization plasma shielding effects on scattering entanglement fidelity in dense plasmas

    SciTech Connect (OSTI)

    Lee, Gyeong Won [Department of Bionanotechnology, Hanyang University, Ansan, Kyunggi-Do 426-791 (Korea, Republic of); Shim, Jaewon [Department of Applied Physics, Hanyang University, Ansan, Kyunggi-Do 426-791 (Korea, Republic of); Jung, Young-Dae, E-mail: ydjung@hanyang.ac.kr [Department of Bionanotechnology, Hanyang University, Ansan, Kyunggi-Do 426-791 (Korea, Republic of); Department of Applied Physics, Hanyang University, Ansan, Kyunggi-Do 426-791 (Korea, Republic of); Department of Physics, Applied Physics, and Astronomy, Rensselaer Polytechnic Institute, 110 8th Street, Troy, New York 12180-3590 (United States)

    2014-10-15T23:59:59.000Z

    The influence of renormalization plasma screening on the entanglement fidelity for the elastic electron-atom scattering is investigated in partially ionized dense hydrogen plasmas. The partial wave analysis and effective interaction potential are employed to obtain the scattering entanglement fidelity in dense hydrogen plasmas as functions of the collision energy, the Debye length, and the renormalization parameter. It is found that the renormalization plasma shielding enhances the scattering entanglement fidelity. Hence, we show that the transmission of the quantum information can be increased about 10% due to the renormalization shielding effect in dense hydrogen plasmas. It is also found that the renormalization shielding effect on the entanglement fidelity for the electron-atom collision increases with an increase of the collision energy. In addition, the renormalization shielding function increases with increasing collision energy and saturates to the unity with an increase of the Debye length.

  18. Structure of micro-instabilities in tokamak plasmas: Stiff transport or plasma eruptions?

    SciTech Connect (OSTI)

    Dickinson, D., E-mail: dd502@york.ac.uk [York Plasma Institute, Department of Physics, University of York, Heslington, York YO10 5DD (United Kingdom); EURATOM/CCFE Fusion Association, Culham Science Centre, Abingdon, Oxon OX14 3DB (United Kingdom); Roach, C. M. [EURATOM/CCFE Fusion Association, Culham Science Centre, Abingdon, Oxon OX14 3DB (United Kingdom)] [EURATOM/CCFE Fusion Association, Culham Science Centre, Abingdon, Oxon OX14 3DB (United Kingdom); Skipp, J. M.; Wilson, H. R. [York Plasma Institute, Department of Physics, University of York, Heslington, York YO10 5DD (United Kingdom)] [York Plasma Institute, Department of Physics, University of York, Heslington, York YO10 5DD (United Kingdom)

    2014-01-15T23:59:59.000Z

    Solutions to a model 2D eigenmode equation describing micro-instabilities in tokamak plasmas are presented that demonstrate a sensitivity of the mode structure and stability to plasma profiles. In narrow regions of parameter space, with special plasma profiles, a maximally unstable mode is found that balloons on the outboard side of the tokamak. This corresponds to the conventional picture of a ballooning mode. However, for most profiles, this mode cannot exist, and instead, a more stable mode is found that balloons closer to the top or bottom of the plasma. Good quantitative agreement with a 1D ballooning analysis is found, provided the constraints associated with higher order profile effects, often neglected, are taken into account. A sudden transition from this general mode to the more unstable ballooning mode can occur for a critical flow shear, providing a candidate model for why some experiments observe small plasma eruptions (Edge Localised Modes, or ELMs) in place of large Type I ELMs.

  19. Design and fabrication of advanced surface microstructures : surface modification of cardiovascular stent wires via RF plasma processing

    E-Print Network [OSTI]

    Loya, Mariana

    2010-01-01T23:59:59.000Z

    probes work” in Plasma Diagnostics, Discharge Parameters andprobes work” in Plasma Diagnostics, Discharge Parameters andof Lanmuir probes for plasma diagnostics: A review, “ Plasma

  20. Exploration of Plasma Jets Approach to High Energy Density Physics

    SciTech Connect (OSTI)

    Chen, Chiping [Massachusetts Institute of Technology

    2013-08-26T23:59:59.000Z

    High-energy-density laboratory plasma (HEDLP) physics is an emerging, important area of research in plasma physics, nuclear physics, astrophysics, and particle acceleration. While the HEDLP regime occurs at extreme conditions which are often found naturally in space but not on the earth, it may be accessible by colliding high intensity plasmas such as high-energy-density plasma jets, plasmoids or compact toroids from plasma guns. The physics of plasma jets is investigated in the context of high energy density laboratory plasma research. This report summarizes results of theoretical and computational investigation of a plasma jet undergoing adiabatic compression and adiabatic expansion. A root-mean-squared (rms) envelope theory of plasma jets is developed. Comparison between theory and experiment is made. Good agreement between theory and experiment is found.

  1. Multi-scale investigation of sheared flows in magnetized plasmas

    SciTech Connect (OSTI)

    Thomas, Jr., Dr. Edward

    2014-09-19T23:59:59.000Z

    Flows parallel and perpendicular to magnetic fields in a plasma are important phenomena in many areas of plasma science research. The presence of these spatially inhomogeneous flows is often associated with the stability of the plasma. In fusion plasmas, these sheared flows can be stabilizing while in space plasmas, these sheared flows can be destabilizing. Because of this, there is broad interest in understanding the coupling between plasma stability and plasma flows. This research project has engaged in a study of the plasma response to spatially inhomogeneous plasma flows using three different experimental devices: the Auburn Linear Experiment for Instability Studies (ALEXIS) and the Compact Toroidal Hybrid (CTH) stellarator devices at Auburn University, and the Space Plasma Simulation Chamber (SPSC) at the Naval Research Laboratory. This work has shown that there is a commonality of the plasma response to sheared flows across a wide range of plasma parameters and magnetic field geometries. The goal of this multi-device, multi-scale project is to understand how sheared flows established by the same underlying physical mechanisms lead to different plasma responses in fusion, laboratory, and space plasmas.

  2. Results from Plasma Wakefield Experiments at FACET

    SciTech Connect (OSTI)

    Li, S.Z.; Clarke, C.I.; England, R.J.; Frederico, J.; Gessner, S.J.; Hogan, M.J.; Jobe, R.K.; Litos, M.D.; Walz, D.R.; /SLAC; Muggli, P.; /Munich, Max Planck Inst.; An, W.; Clayton, C.E.; Joshi, C.; Lu, W.; Marsh, K.A.; Mori, W.; Tochitsky, S.; /UCLA; Adli, E.; /U. Oslo

    2011-12-13T23:59:59.000Z

    We report initial results of the Plasma Wakefield Acceleration (PWFA) Experiments performed at FACET - Facility for Advanced aCcelertor Experimental Tests at SLAC National Accelerator Laboratory. At FACET a 23 GeV electron beam with 1.8 x 10{sup 10} electrons is compressed to 20 {mu}m longitudinally and focused down to 10 {mu}m x 10 {mu}m transverse spot size for user driven experiments. Construction of the FACET facility completed in May 2011 with a first run of user assisted commissioning throughout the summer. The first PWFA experiments will use single electron bunches combined with a high density lithium plasma to produce accelerating gradients > 10 GeV/m benchmarking the FACET beam and the newly installed experimental hardware. Future plans for further study of plasma wakefield acceleration will be reviewed. The experimental hardware and operation of the plasma heat-pipe oven have been successfully commissioned. Plasma wakefield acceleration was not observed because the electron bunch density was insufficient to ionize the lithium vapor. The remaining commissioning time in summer 2011 will be dedicated to delivering the FACET design parameters for the experimental programs which will begin in early 2012. PWFA experiments require the shorter bunches and smaller transverse sizes to create the plasma and drive large amplitude wakefields. Low emittance and high energy will minimize head erosion which was found to be a limiting factor in acceleration distance and energy gain. We will run the PWFA experiments with the design single bunch conditions in early 2012. Future PWFA experiments at FACET are discussed in [5][6] and include drive and witness bunch production for high energy beam manipulation, ramped bunch to optimize tranformer ratio, field-ionized cesium plasma, preionized plasmas, positron acceleration, etc.. We will install a notch collimator for two-bunch operation as well as new beam diagnostics such as the X-band TCAV [7] to resolve the two bunches. With these new instruments and desired beam parameters in place next year, we will be able to complete the studies of plasma wakefield acceleration in the next few years.

  3. HUNTING THE QUARK GLUON PLASMA.

    SciTech Connect (OSTI)

    LUDLAM, T.; ARONSON, S.

    2005-04-11T23:59:59.000Z

    The U.S. Department of Energy's Relativistic Heavy Ion Collider (RHIC) construction project was completed at BNL in 1999, with the first data-taking runs in the summer of 2000. Since then the early measurements at RHIC have yielded a wealth of data, from four independent detectors, each with its international collaboration of scientists: BRAHMS, PHENIX, PHOBOS, and STAR [1]. For the first time, collisions of heavy nuclei have been carried out at colliding-beam energies that have previously been accessible only for high-energy physics experiments with collisions of ''elementary'' particles such as protons and electrons. It is at these high energies that the predictions of quantum chromodynamics (QCD), the fundamental theory that describes the role of quarks and gluons in nuclear matter, come into play, and new phenomena are sought that may illuminate our view of the basic structure of matter on the sub-atomic scale, with important implications for the origins of matter on the cosmic scale. The RHIC experiments have recorded data from collisions of gold nuclei at the highest energies ever achieved in man-made particle accelerators. These collisions, of which hundreds of millions have now been examined, result in final states of unprecedented complexity, with thousands of produced particles radiating from the nuclear collision. All four of the RHIC experiments have moved quickly to analyze these data, and have begun to understand the phenomena that unfold from the moment of collision as these particles are produced. In order to provide benchmarks of simpler interactions against which to compare the gold-gold collisions, the experiments have gathered comparable samples of data from collisions of a very light nucleus (deuterium) with gold nuclei, as well as proton-proton collisions, all with identical beam energies and experimental apparatus. The early measurements have revealed compelling evidence for the existence of a new form of nuclear matter at extremely high density and temperature--a medium in which the predictions of QCD can be tested, and new phenomena explored, under conditions where the relevant degrees of freedom, over nuclear volumes, are expected to be those of quarks and gluons, rather than of hadrons. This is the realm of the quark gluon plasma, the predicted state of matter whose existence and properties are now being explored by the RHIC experiments.

  4. Inertial range turbulence in kinetic plasmas

    E-Print Network [OSTI]

    G. G. Howes

    2007-11-27T23:59:59.000Z

    The transfer of turbulent energy through an inertial range from the driving scale to dissipative scales in a kinetic plasma followed by the conversion of this energy into heat is a fundamental plasma physics process. A theoretical foundation for the study of this process is constructed, but the details of the kinetic cascade are not well understood. Several important properties are identified: (a) the conservation of a generalized energy by the cascade; (b) the need for collisions to increase entropy and realize irreversible plasma heating; and (c) the key role played by the entropy cascade--a dual cascade of energy to small scales in both physical and velocity space--to convert ultimately the turbulent energy into heat. A strategy for nonlinear numerical simulations of kinetic turbulence is outlined. Initial numerical results are consistent with the operation of the entropy cascade. Inertial range turbulence arises in a broad range of space and astrophysical plasmas and may play an important role in the thermalization of fusion energy in burning plasmas.

  5. Nonplanar solitons collision in ultracold neutral plasmas

    SciTech Connect (OSTI)

    El-Tantawy, S. A.; Moslem, W. M.; El-Metwally, M. [Department of Physics, Faculty of Science, Port Said University, Port Said 42521 (Egypt)] [Department of Physics, Faculty of Science, Port Said University, Port Said 42521 (Egypt); Sabry, R. [Theoretical Physics Group, Department of Physics, Faculty of Science, Damietta University, New Damietta 34517 (Egypt) [Theoretical Physics Group, Department of Physics, Faculty of Science, Damietta University, New Damietta 34517 (Egypt); Department of Physics, College of Science and Humanitarian Studies, Salman Bin Abdulaziz University, Alkharj (Saudi Arabia); El-Labany, S. K. [Theoretical Physics Group, Department of Physics, Faculty of Science, Damietta University, New Damietta 34517 (Egypt)] [Theoretical Physics Group, Department of Physics, Faculty of Science, Damietta University, New Damietta 34517 (Egypt); Schlickeiser, R. [Institut für Theoretische Physik, Lehrstuhl IV: Weltraum- und Astrophysik, Ruhr-Universität Bochum, D-44780 Bochum (Germany)] [Institut für Theoretische Physik, Lehrstuhl IV: Weltraum- und Astrophysik, Ruhr-Universität Bochum, D-44780 Bochum (Germany)

    2013-09-15T23:59:59.000Z

    Collisions between two nonplanar ion-acoustic solitons in strongly coupled ultracold neutral plasmas composed of ion fluid and non-Maxwellian (nonthermal or superthermal) electron distributions are investigated. The extended Poincare-Lighthill-Kuo method is used to obtain coupled nonplanar Kortweg-de Vries equations for describing the system. The nonplanar phase shifts after the interaction of the two solitons are calculated. It is found that the properties of the nonplanar colliding solitons and its corresponding phase shifts are different from those in the planar case. The polarity of the colliding solitons strongly depends on the type of the non-Maxwellian electron distributions. A critical nonthermality parameter ?{sub c} is identified. For values of ? ? ?{sub c} solitons with double polarity exist, while this behavior cannot occur for superthermal plasmas. The phase shift for nonthermal plasmas increases below ?{sub c} for a positive soliton, but it decreases for ? > ?{sub c} for a negative soliton. For superthermal plasmas, the phase shift enhances rapidly for low values of spectral index ? and higher values of ions effective temperature ratio ?{sub *}. For 2 ? ?<10, the phase shift decreases but does not change for ? > 10. The nonlinear structure, as reported here, is useful for controlling the solitons created in forthcoming ultracold neutral plasma experiments.

  6. Design of a free-electron laser driven by the LBNL laser-plasma-accelerator

    E-Print Network [OSTI]

    2008-01-01T23:59:59.000Z

    plasma accelerator at the LBNL LOASIS facility”, in: Proc.electron laser driven by the LBNL laser-plasma-accelerator ?National Laboratory (LBNL) laser-plasma accelerator, whose

  7. Time-resolved visible and extreme ultraviolet spectroscopy of laser-produced tin plasma

    E-Print Network [OSTI]

    O'Shay, Joseph Fred

    2007-01-01T23:59:59.000Z

    Characterization of laser-produced tin plasma. Part I: XUVof laser-produced tin plasma. Part II: Radiation-expanding laser-produced tin plasma,” Eighth International

  8. Wavefront-sensor-based electron density measurements for laser-plasma accelerators

    E-Print Network [OSTI]

    Plateau, Guillaume

    2010-01-01T23:59:59.000Z

    Principles of Plasma Diagnostics, 2nd ed. (CambridgeSchematic of the plasma density diagnostics. When using theshot-to-shot plasma-density diagnostics. PACS numbers:

  9. Study of Flow, Turbulence and Transport on the Large Plasma Device

    E-Print Network [OSTI]

    Schaffner, David A.

    2013-01-01T23:59:59.000Z

    The most prevalent plasma diagnostic for these experimentstemperature plasma, it offers high diagnostic accessibilityand Diagnostics This chapter introduces the Large Plasma

  10. Group velocity and pulse lengthening of mismatched laser pulses in plasma channels

    E-Print Network [OSTI]

    Schroeder, Carl

    2012-01-01T23:59:59.000Z

    Implications for plasma channel diagnostics are discussed.may serve as the basis of a plasma channel diagnostic.Recently a plasma channel diagnostic was proposed that

  11. Extreme-ultraviolet radiation transport in small scale length laser-produced tin plasmas

    E-Print Network [OSTI]

    Sequoia, Kevin Lamar Williams

    2009-01-01T23:59:59.000Z

    Plasma diagnostics .spatial profile of the SL355 2.3. Plasma diagnostics In thissection the plasma diagnostics will be explained in detail.

  12. Investigation of the dynamics and emission characteristics of x-pinch plasmas

    E-Print Network [OSTI]

    Haas, David Michael

    2011-01-01T23:59:59.000Z

    Principles of Plasma Diagnostics: Cambridge UniversityShadowgraphy, another plasma diagnostic employed in theseX-Pinch Plasma from Time-Resolved Diagnostics AIP Conference

  13. A STUDY OF THE GENERAL PLASMA CHARACTERISTICS OF A HIGH POWER MULTIFILAMENT ION SOURCE

    E-Print Network [OSTI]

    Schoenberg, K.F.

    2010-01-01T23:59:59.000Z

    Electric Probes," 'n Plasma Diagnostic Techniques (R. H.Electric Probes", in Plasma Diagnostic Techniques (R. H.Probes", in Plasma Diagnostics (Lochte- Holtereven. eds. ).

  14. Efficient Modeling of Plasma Wake Field Acceleration Experiments Using Particle-In-Cell Methods

    E-Print Network [OSTI]

    An, Weiming

    2013-01-01T23:59:59.000Z

    diagnostics . . . . .The plasma particle diagnostic andthe beam and plasma initialization and diagnostic routines.beam and plasma initialization, and diagnostics. In the

  15. E-Print Network 3.0 - air plasma radiation Sample Search Results

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

    of small plasma objects M. N. Shneidera Summary: radiation in collisional, weakly ionized plasma diagnostics when plasma dimensions are relatively small... on the measurement of...

  16. E-Print Network 3.0 - argon plasmas measured Sample Search Results

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

    ; Plasma Physics and Fusion 82 Approach for control of high-density plasma reactors through optimal pulse shaping* Summary: the accessible plasma parameter space over...

  17. E-Print Network 3.0 - atmospheric thermal plasmas Sample Search...

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

    particles in a plasma... D | 1 the laser senses plasma ... Source: Howard, John - Plasma Research Laboratory, Research School of Physical Sciences and Engineering, Australian...

  18. E-Print Network 3.0 - arc plasma science Sample Search Results

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

    Mathematics 35 PLASMA PROCESSING UPDATE A newsletter from the Summary: for Plasma Research , Gujarat DST-PSSI Interaction Meet Dr. S. Mukherjee Popularizing Plasma...

  19. Experimental Beam Studies of Plasma-generated Species Interaction with Polymeric Materials and Biomolecules

    E-Print Network [OSTI]

    Chung, Ting-Ying

    2012-01-01T23:59:59.000Z

    discussed. The second focus, plasma deactivation of virulentdevices. The second focus is plasma deactivation of virulentlow temperature plasmas. The first focus is the roughening

  20. E-Print Network 3.0 - atmospheric-pressure argon plasma Sample...

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

    ON PLASMA SCIENCE, VOL. 33, NO. 3, JUNE 2005 1061 Nonthermal Plasma Bio-Active Liquid Micro and Summary: plasma (Fig. 6.) IV. CONCLUSION Ignition of atmospheric pressure...