Production Scientifique 2004-2007

Total Page:16

File Type:pdf, Size:1020Kb

Production Scientifique 2004-2007 Production scientifique 2004-2007 Articles parus dans des revues internationales ou nationales avec comité de lecture 2004 • H. Bandulet, C. Labaune, K. Lewis and S. Depierreux, Thomson scattering study of the subharmonic decay of ion-acoustic waves driven by the Brillouin instability, Phys. Rev. Lett. 93, 035002 (2004) • S. Bastiani-Ceccotti, P. Audebert, V. Nagels-Silvert, J.P. Geindre, J.C. Gauthier, J.C. Adam, A. Héron and C. Chenais- Popovics, Time-resolved analysis of the x-ray emission of femtosecond-laser-produced plasmas in the 1.5-keV range, Appl. Phys. B 78, 905 (2004) • D. Batani, F. Strati, H. Stabile, M. Tomasini, G. Lucchini, A. Ravasio, M. Koenig, A. Benuzzi-Mounaix, H. Nishimura, Y. Ochi, J. Ullschmied, J. Skala, B. Kralikova, M. Pfeifer, C. Kadlec, T. Mocek, A. Prag, T. Hall, P. Milani, E. Barborini and P. Piseri, Hugoniot data for carbon at megabar pressures, Phys. Rev. Lett. 92, 065503 (2004) • A. Benuzzi-Mounaix, M. Koenig, G. Huse, B. Faral, N. Grandjouan, D. Batani, E. Henry, M. Tomasini, T. Hall and F. Guyot, Generation of a double shock driven by laser, Phys. Rev. E 70, 045401 (2004) • S. Bouquet, C. Stehlé, M. Koenig, J.P. Chièze, A. Benuzzi-Mounaix, D. Batani, S. Leygnac, X. Fleury, H. Merdji, C. Michaut, F. Thais, N. Grandjouan, T. Hall, E. Henry, V. Malka and J.P. Lafon, Observations of laser driven supercritical radiative shock precursors, Phys. Rev. Lett. 92, 225001 (2004) • P. Celliers, G. Collins, D. Hicks, M. Koenig, E. Henry, A. Benuzzi-Mounaix, D. Batani, D. Bradley, L. Da Silva, R. Wallace, S. Moon, J. Eggert, K. Lee, L. Benedetti, R. Jeanloz, I. Masclet, N. Dague, B. Marchet, M. Rabec LeGloahec, C. Reverdin, J. Pasley, O. Willi, D. Neely and C. Danson, Electronic conduction in shock-compressed water, Phys. Plasmas 11, L41 (2004) • T. Cowan, J. Fuchs, H. Ruhl, A. Kemp, P. Audebert, M. Roth, R. Stephens, I. Barton, A. Blazevic, E. Brambrink, J. Cobble, J. Fernandez, J.C. Gauthier, M. Geissel, M. Hegelich, J. Kaee, S. Karsch, G. LeSage, S. Letzring, M. Manclossi, S. Meyroneinc, A. Newkirk, H. Pépin and N. Renard LeGalloudec, Ultralow emittance, multi-MeV proton beams from a laser virtual-cathode plasma accelerator, Phys. Rev. Lett. 92, 204801 (2004) • G. Doumy, S. Dobosz, P. d’Oliveira, P. Monot, M. Perdrix, F. Quere, F. Reau, P. Martin, P. Audebert, J.C. Gauthier and J.P. Geindre, High order harmonic generation by non-linear reflection of a pedestal-free intense laser pulse on a plasma, Appl. Phys. B 78, 901 (2004) • G. Doumy, F. Quere, O. Gobert, M. Perdrix, P. Martin, P. Audebert, J.C. Gauthier, J.P. Geindre and T. Wittmann, Complete characterization of a plasma mirror for the production of high-contrast ultraintense laser pulses, Phys. Rev. E 69, 026402 (2004) • A.Y. Faenov, T.A. Pikuz, I.Y. Skobelev, A.I. Magunov, V.P. Efremov, M. Servol, F. Quere, M. Bougeard, P. Monot, P. Martin, M. Francucci, G. Petrocelli and P. Audebert, X-ray spectroscopic observations of a superdense plasma in nanoparticles irradiated by superintense femtosecond laser radiation, J.E.T.P. Lett. 80, 730 (2004) • P. Hakel, R.C. Mancini, J.C. Gauthier, E. Minguez, J. Dubau and M. Cornille, X-ray line polarization of He-line Si satellite spectra in plasmas driven by high-intensity ultrashort pulsed lasers, Phys. Rev. E 69, 056405 (2004) • G. Huser, M. Koenig, A. Benuzzi-Mounaix, E. Henry, T. Vinci, B. Faral, M. Tomasini, B. Telaro and D. Batani, Interface velocity of laser shocked Fe/LiF targets, Phys. Plasmas 11, L61 (2004) • A.J. Kemp, Y. Sentoku, T. Cowan, J. Fuchs and H. Ruhl, Anomalous inhibition of electron transport in laser-matter interaction at subrelativistic intensities, Phys. Plasmas 11, L69 (2004) • R. Kodama, Y. Sentoku, Z.L. Chen, G.R. Kumar, S.P. Hatchett, Y. Toyama, T.E. Cowan, R.R. Freeman, J. Fuchs, Y. Izawa, M.H. Key, Y. Kitagawa, K. Kondo, T. Matsuoka, H. Nakamura, M. Nakatsutsumi, P.A. Norreys, T. Norimatsu, R.A. Snavely, R.B. Stephens, M. Tampo, K.A. Tanaka and T. Yabuuchi, Plasma devices to guide and collimate a high density of MeV electrons, Nature 432, 1005 (2004) • M. Koenig, A. Benuzzi-Mounaix, E. Henry, G. Huser and D. Batani, Equation-of-state measurements by laser-induced shock compression, J. Plasma Fusion Res. 80, 438 (2004) • M. Koenig, E. Henry, G. Huser, A. Benuzzi-Mounaix, B. Faral, E. Martinolli, S. LePape, T. Vinci, T. Hall, P. Celliers, G. Collins, L. DaSilva, R. Cauble, D. Hicks, D. Bradley, A. MacKinnon, P. Patel, J. Eggert, J. Pasley, O. Willi, D. Neely, M. Notley, C. Danson, M. Borghesi, L. Romagnani, T. Boehly and K. Lee, High pressures generated by laser driven shocks: applications to planetary physics, Nucl. Fusion 44, S208 (2004) • C. Labaune, H. Bandulet, S. Depierreux, K. Lewis, P. Michel, A. Michard, H.A. Baldis, D. Pesme, S. Hüller, V.T. Tikhonchuk, C. Riconda and S. Weber, Laser Plasma interaction experiments in the context of inertial fusion, Plasma Phys. Control. Fusion 46, B301 (2004) • P. Loubeyre, P. Celliers, D. Hicks, E. Henry, A. Dewaele, J. Pasley, J. Eggert, M. Koenig, F. Ocelli, K. Lee, R. Jeanloz, D. Neely, A. Benuzzi-Mounaix, D. Bradley, M. Bastea, S. Moon and G. Collins, Coupling static and dynamic compression: first measurements in dense hydrogen, High Pres. Res. 24, 25 (2004) • A.J. MacKinnon, P.K. Patel, R.P. Town, M.J. Edwards, T. Phillips, S.C. Lerner, D.W. Price, D. Hicks, M.H. Key, S. Hatchett, SC. Wilks, M. Borghesi, L. Romagnani, S. Kar, T. Toncian, G. Pretzer, O. Willi, M. Koenig, E. Martinolli, S. LePape, A. Benuzzi-Mounaix, P. Audebert, J.C. Gauthier, J. King, R. Snavely, R.R. Freeman and T. Boehly, Proton radiography as an electromagnetic field and density perturbation diagnostic, Rev. Sci. Instrum. 75, 3531 (2004) • E. Martinolli, M. Koenig, F. Amiranoff, S.D. Baton, L. Gremillet, J.J. Santos, T. Hall, M. Rabec LeGloahec, C. Rousseaux and D. Batani, Fast electron heating of a solid target in ultra high intensity laser pulse interaction, Phys. Rev. E 70, 055402 (2004) • E. Martinolli, M. Koenig, J.M. Boudenne, E. Perelli, D. Batani and T. Hall, Conical crystal spectrograph for high brightness x-ray Ka spectroscopy in subpicosecond laser-solid interaction, Rev. Sci. Instrum. 75, 2024 (2004) • P. Michel, C. Labaune, H. Bandulet, K. Lewis, S. Depierreux, S. Hulin, G. Bonnaud, V. Tikhonchuk, S. Weber, G. Riazuelo, H. Baldis and A. Michard, Strong reduction of the degree of spatial coherence of a laser beam propagation through a preformed plasma, Phys. Rev. Lett. 92, 175001 (2004) • P. Monot, G. Doumy, S. Dobosz, M. Perdrix, P. d'Oliveira, F. Quere, F. Reau, P. Martin, P. Audebert, J.C. Gauthier and J.P. Geindre, High-order harmonic generation by nonlinear reflection of an intense high-contrast laser pulse on a plasma, Opt. Lett. 29, 893 (2004) • H. Ruhl, T. Cowan and J. Fuchs, The generation of micro-fiducials in laser-accelerated proton flows, their imaging property of surface structures and application for the characterization of the flow, Phys. Plasmas 11, L17 (2004) • J. Schreiber, M. Kaluza, F. Grüner, U. Schramm, M. Hegelich, J. Cobble, M. Geissler, E. Bambrink, J. Fuchs, P. Audebert, D. Habs and K. Witte, Source-size measurements and charge distributions of ions accelerated from thin foils irradiated by high-intensity laser pulses, Appl. Phys. B 79, 1041 (2004) • R. Shepherd, P. Audebert, R. Booth, B. Young, J. Bonlie, D. Nelson, S. Shiromizu, D. Price, D. Norman, J. Dunn, K. Widmann and P. Springer, Time-resolved spectroscopy of ultrashort pulse laser generated x rays using von Hamos crystal spectroscopy, Rev. Sci. Instrum. 75, 3765 (2004) • R. Stephens, R. Snavely, Y. Aglitskiy, F. Amiranoff, C. Andersen, D. Batani, S. Baton, T. Cowan, R. Freeman, T. Hall, S. Hatchett, J. Hill, M. Key, J. King, J. Koch, M. Koenig, A. MacKinnon, K. Lancaster, E. Martinolli, P. Norreys, E. Perelli Cippo, M. Rabec LeGloahec, C. Rousseaux, J. Santos and F. Scianitti, Kα fluoresecence measurement of relativistic electron transport in the context of fast ignition, Phys. Rev. E 69, 066414 (2004) • J. Surville, L. Videau, S. Montand, C. Stenz and C. Sauteret, Spatial and temporal coherence characterization of a smoothed laser beam, Opt. Lett. 29, 2336 (2004) • N.A. Tahir, S. Udrea, C. Deutsch, V.E. Fortov, N. Grandjouan, V. Gryaznov, D.H.H. Hoffmann, P. Hulsmann, M. Kirk, I.V. Lomonosov, A.R. Piriz, A. Shutov, P. Spiller, M. Temporal and D. Varentsov, Target heating in high-energy-density matter experiments at the proposed GSI FAIR facility: non-linear bunch rotation in SIS100 and optimization of spot size and pulse length, Laser & Part. Beams 22, 485 (2004) • B. Wattelier, J. Fuchs, J.P. Zou, K. Abdeli, C. Haefner and H. Pépin, High-power short-pulse laser repetition rate improvement by adaptative wave front correction, Rev. Sci. Instrum. 75, 5186 (2004) • B. Wattelier, J. Fuchs, J.P. Zou, K. Abdeli, H. Pépin and C. Haefner, Repetition rate increase and diffraction-limited focal spots for a nonthermal-equilibrium 100-TW Nd:glass laser chain by use of adaptive optics, Opt. Lett. 29, 2494 (2004) • S. Weber, G. Riazuelo, P. Michel, R. Loubère, F. Walraet, V.T. Tikhonchuk, V. Malka, J. Ovadia and G. Bonnaud, Modeling of laser-plasma interaction on hydrodynamic scales: Physics development and comparison with experiments, Laser & Part. Beams 22, 189 (2004) 2005 • S. Alexiou and A. Poquérusse, Standard line broadening impact theory for hydrogen including penetrating collisions, Phys. Rev. E 72, 046404 (2005) • P. Audebert, P. Renaudin, S. Bastiani-Ceccotti, J.P. Geindre, C. Chenais-Popovics, S. Tzortzakis, V.
Recommended publications
  • Environmental Impact Statement and Environmental Impact Report for Continued Operation of Lawrence Livermore National Laboratory and Sandia National Labo
    Environmental Impact Statement and Environmental Impact Report for Continued Operation of Lawrence Livermore National Laboratory and Sandia National Labo... APPENDIX A DESCRIPTION OF MAJOR PROGRAMS AND FACILITIES Appendix A describes the programs, infrastructures, facilities, and future plans of Lawrence Livermore National Laboratory (LLNL) and the Sandia National Laboratories at Livermore (SNL, Livermore). It provides information on existing activities and facilities, as well as information on those activities anticipated to occur or facilities to be constructed over the next 5 to 10 years. The purpose of this appendix is to: present information that can be used to evaluate the proposed action and other EIS/EIR alternatives, identify activities that are part of the proposed action, distinguish proposed action activities from no action alternative activities, and provide supporting documentation for less detailed descriptions of these activities or facilities found in other sections and appendices of the EIS/EIR. Figure A-1 illustrates how this appendix interfaces with other sections and appendices of this EIS/EIR. Most LLNL and all SNL, Livermore operations are located at sites near Livermore, California. LLNL also operates LLNL Site 300 near Tracy, California, and conducts limited activities at several leased properties near the LLNL Livermore site, as well as in leased offices in Los Angeles, California, and Germantown, Maryland. Figure A-2 and Figure A-3 show the regional location of the LLNL Livermore site, LLNL Site 300, and SNL, Livermore and their location with respect to the cities of Livermore and Tracy. While they are distinct operations managed and operated by different contractors, for purposes of this document LLNL Livermore and SNL, Livermore sites are addressed together because of their proximity.
    [Show full text]
  • Preprint , Lawrence Ijvermore Laboratory
    / UCRL - 76z1° Rev 1 Thin is n preprint of a paper intended for publication in a journal or proceedings. Since changes may be made PREPRINT , before publication, this preprint is made Available with the understanding that it wiii not be cited or reproduced without the permission of the author. is LAWRENCE IJVERMORE LABORATORY Universityat' CaMornm/Livermore.Catifornia LASER PLASMA EXPERIMENTS RELEVANT TO LASER PRODUCED IMPLOSIONS H. G. Ahlstrom, J. F. Holzrichter, K. R. Manes, L. W. Colenan, D. R. Speck, R. A. Haas, and H. D. Shay November 7, 1974 - NOTICE - This repori was prepared as an account of wink sponsored by the United Slates Gimtrnmem. Scithct the United Slates nor the United Stales Energy Research and Development Administration, nor any of their employees, nor any <if their contractors, subcontractors, or Iheir employees, makes any warranty, express or implied, or assumes any lepal liability or responsibility for the accuracy, completeness or usefulness of any information, apparatus, product or process disclosed, or represents thjl its use would not infringe privately owned rights. This Paper Was Prepared For Submission To The Fifth Conference On Plasma Physics and Controlled Nuclear Fusion Research Tokyo, Japan - November 11-15, 1974 L/\vy. PU-VA rvPFn.nr';T? RELLVA;:T "TO LASH "POr,fT[|-, nPLDSlOIC* s II. '?. Ahlstroni, J. P. Hol.-ri enter, K. Mgnes. L. W. Col"man, "•. P. Speck, P. A. Haas, and H. ">. Shay i.r.-.rertce l.iven-ore Laboratory, t'niversity o*7 "aliforn Livermot?, California <»<I55'J November 7. 1974 ABSTPACT Preliminary lasor taraet interaction studies desinned to nrr ide co;l« normalization data in a reoine of interest to Ifiser fusion a- nyortP-1.
    [Show full text]
  • X-Ray Thomson Scattering in High Energy Density Plasmas
    REVIEWS OF MODERN PHYSICS, VOLUME 81, OCTOBER–DECEMBER 2009 X-ray Thomson scattering in high energy density plasmas Siegfried H. Glenzer L-399, Lawrence Livermore National Laboratory, University of California, P.O. Box 808, Livermore, California 94551, USA Ronald Redmer Institut für Physik, Universität Rostock, Universitätsplatz 3, D-18051 Rostock, Germany ͑Published 1 December 2009͒ Accurate x-ray scattering techniques to measure the physical properties of dense plasmas have been developed for applications in high energy density physics. This class of experiments produces short-lived hot dense states of matter with electron densities in the range of solid density and higher where powerful penetrating x-ray sources have become available for probing. Experiments have employed laser-based x-ray sources that provide sufficient photon numbers in narrow bandwidth spectral lines, allowing spectrally resolved x-ray scattering measurements from these plasmas. The backscattering spectrum accesses the noncollective Compton scattering regime which provides accurate diagnostic information on the temperature, density, and ionization state. The forward scattering spectrum has been shown to measure the collective plasmon oscillations. Besides extracting the standard plasma parameters, density and temperature, forward scattering yields new observables such as a direct measure of collisions and quantum effects. Dense matter theory relates scattering spectra with the dielectric function and structure factors that determine the physical properties of matter. Applications to radiation-heated and shock-compressed matter have demonstrated accurate measurements of compression and heating with up to picosecond temporal resolution. The ongoing development of suitable x-ray sources and facilities will enable experiments in a wide range of research areas including inertial confinement fusion, radiation hydrodynamics, material science, or laboratory astrophysics.
    [Show full text]
  • Structuraland Magnetic Properties of Er3fe5-Xalxo12 Garnets
    CHAPTER 3 Structural and Magnetic Properties of Er3Fe5-xAlxO12 Garnets Ibrahim Bsoul1,a, Khaled Hawamdeh1,b, Sami H. Mahmood2,c 1Physics Department, Al al-Bayt University, Mafraq 13040, Jordan 2Physics Department, The University of Jordan, Amman 11942, Jordan [email protected], [email protected], [email protected] Abstract Er3Fe5-xAlxO12 (0.0 ≤ x ≤ 0.8) garnets were prepared by ball milling and sintering at 1300ºC. Rietveld refinement of the samples revealed a garnet structure with Ia3d symmetry. The lattice parameter, cell volume, X-ray density and magnetization of the prepared garnets decreased with the increase of Al content (x). The coercivity of the garnets increased with x, but remained generally low, being below 20 Oe. Low temperature magnetic measurements versus temperature indicated that the magnetization of x = 0.0 exhibited a compensation temperature at ˗186º C, however, x = 0.8 exhibited a minimum at a higher temperature of ˗134º C. Keywords Rare Earth Iron Garnet; Structural Characteristics; Magnetic Properties; Compensation Temperature; Thermomagnetic curves. Contents 1. Introduction 2. Experimental procedures 3. Results and discussion 3.1 XRD measurements 3.2 Magnetic measurements 3.3 Temperature dependence of the magnetic properties 3.4 Low temperature measurements 4. Conclusions References 1. INTRODUCTION Ferrimagnetic garnets exemplified by yttrium iron garnet (YIG) was discovery in 1956, and received considerable interest due to their low dielectric losses and remarkable performance in microwave devices and magnetic bubbles for digital memories [1, 2], in addition to their importance in the field of fundamental magnetism. The garnets have a cubic crystal structure 3+ 3+ 3+ 2− 3+ with space group Ia3d and chemical formula {R3 }c[Fe2 ]a(Fe3 )d O12 , where R is a trivalent rare-earth ion occupying dodecahedral (c) sites, and Fe3+ ions occupy octahedral [a- sublattice] and tetrahedral (d-sublattice) sites in the garnet lattice.
    [Show full text]
  • Alice E. Koniges Center for Beam Physics Seminar February 14, 2014
    Multimaterial Multiphysics Modeling of Complex Experimental Configurations Alice E. Koniges Lawrence Berkeley National Laboratory Center for Beam Physics Seminar February 14, 2014 Acknowledgements • LLNL: ALE-AMR Development and NIF Modeling – Robert Anderson, David Eder, Aaron Fisher, Nathan Masters • UCLA: Surface Tension – Andrea Bertozzi • UCSD: Fragmentation – David Benson • LBL/LLNL: NDCX-II and Surface Tension – John Barnard, Alex Friedman, Wangyi Liu • LBL/LLNL: PIC – Tony Drummond, David Grote, Robert Preissl, Jean-Luc Vay • Indiana University and LSU: Asynchronous Computations – Hartmut Kaiser, Thomas Sterling Outline • Modeling for a range of experimental facilities • Summary of multiphysics code ALE-AMR – ALE - Arbitrary Lagrangian Eulerian – AMR - Adaptive Mesh Refinement • New surface tension model in ALE-AMR • Sample of modeling capabilities – EUV Lithography – NDCX-II – National Ignition Facility • New directions: exascale and more multiphysics – Coupling fluid with PIC – PIC challenges for exascale – Coupling to meso/micro scale Multiphysics simulation code, ALE-AMR, is used to model experiments at a large range of facilities Neutralized Drift Compression Experiment (NDCX-II) CYMER EUV Lithography System NIF LMJ National Ignition Facility (NIF) - USA Laser Mega Joule (LMJ) - France NDCX-II facility at LBNL accelerates Li ions for warm dense matter experiments TARGET # FOIL" ION BEAM " BUNCH" VOLUMETRIC DEPOSITION" ! The Cymer extreme UV lithography experiment uses laser heated molten metal droplets Tin Droplets •! Technique uses a prepulse to flatten droplet prior to main pulse CO2 Laser Wafer •! Modeling critical to optimize process •! Surface tension affect droplet dynamics Multilayer Mirror Density 7.0 t = 150 ns t = 350 ns t = 550 ns 60 3.5 30 0.0 z (microns) CO2 Laser 0 -30 0 30 -30 0 30 -30 0 30 x (microns) x (microns) x (microns) Large laser facilities, e.g., NIF and LMJ, require modeling to protect optics and diagnostics 1.1 mm The entire target, e.
    [Show full text]
  • Pulsed Laser Deposition of High-Quality Μm-Thick YIG Films on YAG
    Pulsed laser deposition of high-quality μm-thick YIG films on YAG A. Sposito,1,* T. C. May-Smith,1 G. B. G. Stenning,2 P. A. J. de Groot,2 and R. W. Eason1 1Optoelectronics Research Centre, University of Southampton, SO17 1BJ, Southampton, United Kingdom 2Physics and Astronomy, University of Southampton, SO17 1BJ, Southampton, United Kingdom *[email protected] Abstract: We report the epitaxial growth of high-quality μm-thick yttrium iron garnet (YIG) films on yttrium aluminium garnet (YAG) substrates by pulsed laser deposition (PLD). The effects of substrate temperature and oxygen pressure on composition, crystallinity, optical transmission and ferromagnetic resonance (FMR) linewidth have been investigated. An FMR linewidth as low as 1.75 mT at 6 GHz was achieved by depositing YIG on YAG substrates with (100) orientation at a substrate temperature of ~1600 K and with oxygen pressure of ~1 Pa. ©2013 Optical Society of America OCIS codes: (160.3820) Magneto-optical materials; (310.1860) Deposition and fabrication. References and links 1. R. W. Eason, Pulsed Laser Deposition of Thin Films – Applications-led Growth of Functional Materials (Wiley Interscience, 2007). 2. N. A. Vainos, C. Grivas, C. Fotakis, R. W. Eason, A. A. Anderson, D. S. Gill, D. P. Shepherd, M. Jelinek, J. Lancok, and J. Sonsky, “Planar laser waveguides of Ti:sapphire, Nd:GGG and Nd:YAG grown by pulsed laser deposition,” Appl. Surf. Sci. 127-129, 514–519 (1998). 3. H. Dötsch, N. Bahlmann, O. Zhuromskyy, M. Hammer, L. Wilkens, R. Gerhardt, P. Hertel, and A. F. Popkov, “Applications of magneto-optical waveguides in integrated optics: review,” J.
    [Show full text]
  • X-Ray Polarization Measurements at Relativistic Laser Intensities
    JP0455074 X-ray Polarization Measurements at Relativistic Laser Intensities P. Beiersdorfer', R. Shepherd', R. C. Mancini', H. Chen', J. Dunn', R. Keenan', J. Kuba', P. K. Patel' Y. Ping', D. F. Price', K. Widmann' 'Lawrence Livermore National Laboratory, LiveT7nore, CA 94550, USA 2 UniVerSity of Nevada, Reno, NV 8955 7, USA An effort has been started to measure the short pulse laser absorptio ad energy partitio at relativistic laser intensities tip to 1021 W/CM2. Plasma polarization spectroscopy is expected to play an iportant role i determining fast electron generation and measuring the electron distribution function. 1. INTRODUCTION Plasma polarization spectroscopy (PPS) has been eployed to verify and study the existence of non-thermal, fast electrons in laser-plasma iteraction since te first experiments by Kieffer et al. 131. The lasers intensity i these measurements as been in the range 10 4 - 1016 W/CM2. Measurements of laser absorption at igher intensities < 1018 W/cm 2 have been made 4 but without employing x-ray polarimetry Teoretical studies of fast-electron generation and teir effect o te x-ray linear polarization have been made 561, which considered laser itensities as hig as 10111 W/CM2. Here we describe a planned effort to se PPS as a diagnostic for determining fast electron generation and eergy partition of short pulse lasers interacting with matter at relativistic laser itensities up to 1021 W/Cm2. 11. PHYSICS LASERS AT LLNL The Physics and Advanced Technologies Directorate at the University of California Lawrence Livermore National Laboratory operates four powerful ultipurpose laser facilities used for experiments in igh-energy density physics, x-ray laser development, and material science.
    [Show full text]
  • A Tunable Magneto-Acoustic Oscillator with Low Phase Noise
    A tunable magneto-acoustic oscillator with low phase noise A. Litvinenko,1, ∗ R. Khymyn,2 V. Tyberkevych,3 V. Tikhonov,1 A. Slavin,3 and S. Nikitov1, 4, 5 1Laboratory of metamaterials, Saratov State University, 410012, Saratov, Russia. 2Department of Physics, University of Gothenburg, 412 96, Gothenburg, Sweden. 3Department of Physics, Oakland University, 48309, Rochester, Michigan, USA. 4Kotelnikov Institute of Radioengineering and Electronics of Russian Academy of Sciences, 125009, Moscow, Russia. 5Moscow Institute of Physics and Technology (National Research University), 141700, Dolgoprudny, Moscow Region, Russia. (Dated: November 17, 2020) A frequency-tunable low phase noise magneto-acoustic resonator is developed on the base of a parallel-plate straight-edge bilayer consisting of a yttrium-iron garnet (YIG) layer grown on a substrate of a gallium-gadolinium garnet(GGG). When a YIG/GGG sample forms an ideal parallel plate, it supports a series of high-quality-factor acoustic modes standing along the plate thickness. Due to the magnetostriction of the YIG layer the ferromagnetic resonance (FMR) mode of the YIG layer can strongly interact with the acoustic thickness modes of the YIG/GGG structure, when the modes' frequencies match. A particular acoustic thickness mode used for the resonance excitations of the hybrid magneto-acoustic oscillations in a YIG/GGG bilayer is chosen by the YIG layer FMR frequency, which can be tuned by the variation of the external bias magnetic field. A composite magneto-acoustic oscillator, which includes an FMR-based resonance pre-selector, is developed to guarantee satisfaction of the Barkhausen criteria for a single-acoustic-mode oscillation regime. The developed low phase noise composite magneto-acoustic oscillator can be tuned from 0.84 GHz to 1 GHz with an increment of about 4.8 MHz (frequency distance between the adjacent acoustic thickness modes in a YIG/GGG parallel plate), and demonstrates the phase noise of -116 dBc/Hz at the offset frequency of 10 KHz.
    [Show full text]
  • Signature Redacted %
    EXAMINATION OF THE UNITED STATES DOMESTIC FUSION PROGRAM ARCHW.$ By MASS ACHUSETTS INSTITUTE Lauren A. Merriman I OF IECHNOLOLGY MAY U6 2015 SUBMITTED TO THE DEPARTMENT OF NUCLEAR SCIENCE AND ENGINEERING I LIBR ARIES IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF BACHELOR OF SCIENCE IN NUCLEAR SCIENCE AND ENGINEERING AT THE MASSACHUSETTS INSTITUTE OF TECHNOLOGY FEBRUARY 2015 Lauren A. Merriman. All Rights Reserved. - The author hereby grants to MIT permission to reproduce and to distribute publicly Paper and electronic copies of this thesis document in whole or in part. Signature of Author:_ Signature redacted %. Lauren A. Merriman Department of Nuclear Science and Engineering May 22, 2014 Signature redacted Certified by:. Dennis Whyte Professor of Nuclear Science and Engineering I'l f 'A Thesis Supervisor Signature redacted Accepted by: Richard K. Lester Professor and Head of the Department of Nuclear Science and Engineering 1 EXAMINATION OF THE UNITED STATES DOMESTIC FUSION PROGRAM By Lauren A. Merriman Submitted to the Department of Nuclear Science and Engineering on May 22, 2014 In Partial Fulfillment of the Requirements for the Degree of Bachelor of Science in Nuclear Science and Engineering ABSTRACT Fusion has been "forty years away", that is, forty years to implementation, ever since the idea of harnessing energy from a fusion reactor was conceived in the 1950s. In reality, however, it has yet to become a viable energy source. Fusion's promise and failure are both investigated by reviewing the history of the United States domestic fusion program and comparing technological forecasting by fusion scientists, fusion program budget plans, and fusion program budget history.
    [Show full text]
  • Phase and Frequency Locked Magnetrons for Srf Sources* M
    MOPC140 Proceedings of IPAC2011, San Sebastián, Spain PHASE AND FREQUENCY LOCKED MAGNETRONS FOR SRF SOURCES* M. Neubauer, R. Sah, A. Dudas, R. Johnson, M. A. C. Cummings, Muons, Inc. Batavia, IL, U.S.A. M. Popovic, A. Moretti, Fermilab, Batavia, IL, U.S.A Abstract As mentioned above, the yttrium aluminum garnet appeared to have some ideal characteristics, but since it Magnetrons are the lowest cost microwave high-power has low saturation magnetization, in the biasing field of sources in dollars/kW, with high efficiency (typically the magnetron these good characteristics may be lost. As greater than 85%). However, the frequency and phase a result, the materials chosen for testing are ones that have stability of magnetrons is inadequate when used as power a range of saturation magnetizations. sources for accelerators. Novel variable frequency cavity In an attempt to continue with the yttrium aluminum techniques have been developed which will be used to garnet as the material of choice, we have launched a phase and frequency lock magnetrons, allowing their use number of studies to find a way to shield the ferrite from for either individual cavities, or cavity strings. Ferrite or the main magnetic field. We have also started work on YIG (Yttrium Iron Garnet) materials will be attached in designing a control circuit for biasing the magnetic field. the regions of high magnetic field of radial-vaned, The remainder of the paper will describe the ferrite based π−mode structures of a selected ordinary magnetron to magnetron and the work related with these efforts. control the frequency of the magnetron.
    [Show full text]
  • Nuclear Diagnostics for Inertial Confinement Fusion (ICF) Plasmas
    PSFC/JA-20-4 Nuclear diagnostics for Inertial Confinement Fusion (ICF) plasmas J. A. Frenje January 2020 Plasma Science and Fusion Center Massachusetts Institute of Technology Cambridge MA 02139 USA The work described herein was supported in part by US DOE (Grant No. DE-FG03-03SF22691), LLE (subcontract Grant No. 412160-001G) and the Center for Advanced Nuclear Diagnostics (Grant No. DE-NA0003868). Reproduction, translation, publication, use and disposal, in whole or in part, by or for the United States government is permitted. Submitted to Plasma Physics and Controlled Fusion Nuclear Diagnostics for Inertial Confinement Fusion (ICF) Plasmas J.A. Frenje1 1Massachusetts Institute of Technology, Cambridge, MA 02139, USA Email: [email protected] The field of nuclear diagnostics for Inertial Confinement Fusion (ICF) is broadly reviewed from its beginning in the seventies to present day. During this time, the sophistication of the ICF facilities and the suite of nuclear diagnostics have substantially evolved, generally a consequence of the efforts and experience gained on previous facilities. As the fusion yields have increased several orders of magnitude during these years, the quality of the nuclear-fusion-product measurements has improved significantly, facilitating an increased level of understanding about the physics governing the nuclear phase of an ICF implosion. The field of ICF has now entered an era where the fusion yields are high enough for nuclear measurements to provide spatial, temporal and spectral information, which have proven indispensable to understanding the performance of an ICF implosion. At the same time, the requirements on the nuclear diagnostics have also become more stringent.
    [Show full text]
  • Arxiv:2005.14133V2
    A First Principle Study on Magneto-Optical Effects in Ferromagnetic Semiconductors Y3Fe5O12 and Bi3Fe5O12 1 1,2, Wei-Kuo Li and Guang-Yu Guo ∗ 1Department of Physics and Center for Theoretical Physics, National Taiwan University, Taipei 10617, Taiwan 2Physics Division, National Center for Theoretical Sciences, Hsinchu 30013, Taiwan (Dated: August 4, 2020) The magneto-optical (MO) effects not only are a powerful probe of magnetism and electronic structure of magnetic solids but also have valuable applications in high-density data-storage tech- nology. Yttrium iron garnet (Y3Fe5O12) (YIG) and bismuth iron garnet (Bi3Fe5O12) (BIG) are two widely used magnetic semiconductors with significant magneto-optical effects. In particular, YIG has been routinely used as a spin current injector. In this paper, we present a thorough theoretical investigation on magnetism, electronic, optical and MO properties of YIG and BIG, based on the density functional theory with the generalized gradient approximation plus onsite Coulomb repul- sion. We find that YIG exhibits significant MO Kerr and Faraday effects in UV frequency range that are comparable to ferromagnetic iron. Strikingly, BIG shows gigantic MO effects in visible frequency region that are several times larger than YIG. We find that these distinctly different MO properties of YIG and BIG result from the fact that the magnitude of the calculated MO conduc- tivity (σxy) of BIG is one order of magnitude larger than that of YIG. Interestingly, the calculated band structures reveal that both valence and conduction bands across the semiconducting band gap in BIG are purely spin-down states, i.e., BIG is a single spin semiconductor.
    [Show full text]