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Now showing items 66-85 of 122

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    Magic wavelengths, matrix elements, polarizabilities, and lifetimes of Cs 

    Safronova, M. S.; Safronova, U. I.; Clark, Charles W. (2016)
    Motivated by recent interest in their applications, we report a systematic study of Cs atomic properties calculated by a high-precision relativistic all-order method. Excitation energies, reduced matrix elements, transition ...
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    Magnetized fast isochoric laser heating for efficient creation of ultra-high-energy-density states 

    Sakata, Shohei; Lee, Seungho; Morita, Hiroki; Johzaki, Tomoyuki; Sawada, Hiroshi; Iwasa, Yuki; Matsuo, Kazuki; Law, King F. F.; Yao, Akira; Hata, Masayasu; Sunahara, Atsushi; Kojima, Sadaoki; Abe, Yuki; Kishimoto, Hidetaka; Syuhada, Aneez; Shiroto, Takashi; Morace, Alessio; Yogo, Akifumi; Iwata, Natsumi; Nakai, Mitsuo; Sakagami, Hitoshi; Ozaki, Tetsuo; Yamanoi, Kohei; Norimatsu, Takayoshi; Nakata, Yoshiki; Tokita, Shigeki; Miyanaga, Noriaki; Kawanaka, Junji; Shiraga, Hiroyuki; Mima, Kunioki; Nishimura, Hiroaki; Bailly-Grandvaux, Mathieu; Santos, Joao J.; Nagatomo, Hideo; Azechi, Hiroshi; Kodama, Ryosuke; Arikawa, Yasunobu; Sentoku, Yasuhiko; Fujioka, Shinsuke (2018)
    Fast isochoric heating of a pre-compressed plasma core with a high-intensity short-pulse laser is an attractive and alternative approach to create ultra-high-energy-density states like those found in inertial confinement ...
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    Magneto-Inertial Fusion 

    Wurden, G. A.; Hsu, S. C.; Intrator, T. P.; Grabowski, T. C.; Degnan, J. H.; Domonkos, M.; Turchi, P. J.; Campbell, E. M.; Sinars, D. B.; Herrmann, M. C.; Betti, R.; Bauer, B. S.; Lindemuth, I. R.; Siemon, R. E.; Miller, R. L.; Laberge, M.; Delage, M. (2016)
    In this community white paper, we describe an approach to achieving fusion which employs a hybrid of elements from the traditional magnetic and inertial fusion concepts, called magneto-inertial fusion (MIF). The status of ...
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    Measurement of temperature and density using non-collective X-ray Thomson scattering in pulsed power produced warm dense plasmas 

    Valenzuela, J. C.; Krauland, C.; Mariscal, D.; Krasheninnikov, I.; Niemann, C.; Ma, T.; Mabey, P.; Gregori, G.; Wiewior, P.; Covington, A. M.; Beg, F. N. (2018)
    We present the first experimental measurement of temperature and density of a warm dense plasma produced by a pulsed power driver at the Nevada Terawatt Facility (NTF). In the early phases of discharge, most of the mass ...
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    Measurements of Light-Absorbing Particles on the Glaciers in the Cordillera Blanca, Peru 

    Schmitt, C. G.; All, J. D.; Schwarz, J. P.; Arnott, W. Patrick; Cole, R. J.; Lapham, E.; Celestian, A. (2/12/2015)
    Glaciers in the tropical Andes have been rapidly losing mass since the 1970s. In addition to the documented increase in temperature, increases in light-absorbing particles deposited on glaciers could be contributing to ...
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    Multilayered polycrystallization in single-crystal YSZ by laser-shock compression 

    Nishimura, Yasuhiko; Kitagawa, Yoneyoshi; Mori, Yoshitaka; Hioki, Tatsumi; Azuma, Hirozumi; Motohiro, Tomoyoshi; Komeda, Osamu; Ishii, Katsuhiro; Hanayama, Ryohei; Sekine, Takashi; Sunahara, Atsushi; Kajino, Tsutomu; Nishi, Teppei; Kondo, Takuya; Fujine, Manabu; Sato, Nakahiro; Kurita, Takashi; Kawashima, Toshiyuki; Kan, Hirofumi; Miura, Eisuke; Sentoku, Yasuhiko (2015)
    A single shot of an ultra-intense laser with 0.8 J of energy and a pulse width of 110 fs (peak intensity of 1.15 x 10(17) W cm(-2)) is divided into two beams and the two beams counter-irradiated onto a 0.5 mm-thick single ...
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    Note: Infrared laser diagnostics for deuterium gas puff Z pinches 

    Ivanov, Vladimir V.; McKee, Erik S.; Hammel, Benjamin D.; Darling, T. W.; Swanson, K. J.; Covington, A. M. (2017)
    Deuterium gas puff Z pinches have been used for generation of strong neutron fluxes on the MA class pulse power machines. Due to the low electron density of deuterium Z-pinch plasma, regular laser diagnostics in the visible ...
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    Numerical study of core formation of asymmetrically driven cone-guided targets 

    Sawada, Hiroshi; Sakagami, Hitoshi (2017)
    Compression of a directly driven fast ignition cone-sphere target with a finite number of laser beams is numerically studied using a three-dimensional hydrodynamics code IMPACT-3D. The formation of a dense plasma core is ...
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    Photoionization and photofragmentation of singly charged positive and negative SC3N@C-80 endohedral fullerene ions 

    Mueller, A.; Martins, M.; Kilcoyne, A. L. D.; Phaneuf, R. A.; Hellhund, J.; Borovik, A.; Holste, K.; Bari, S.; Buhr, T.; Klumpp, S.; Perry-Sassmannshausen, A.; Reinwardt, S.; Ricz, S.; Schubert, K.; Schippers, S. (2019)
    Photoprocesses of the endohedral fullerene ions SC3N@C-80(+) and SC3N@ C-80(-) in the gas phase have been investigated in the photon energy ranges 30-50 eV and 280-420 eV. Single and double ionization as well as single ...
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    Photoionization and photofragmentation of the C-60(+) molecular ion 

    Baral, Kiran K.; Aryal, Nagendra B.; Esteves-Macaluso, David A.; Thomas, C. M.; Hellhund, J.; Lomsadze, R.; Kilcoyne, A. L. D.; Mueller, A.; Schippers, S.; Phaneuf, R. A. (2016)
    Cross-section measurements are reported for single and double photoionization of C-60(+) ions in the photon energy range 18-150 eV accompanied by the loss of zero to seven pairs of carbon atoms, as well as for fragmentation ...
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    Potential for a large earthquake near Los Angeles inferred from the 2014 La Habra earthquake 

    Donnellan, Andrea; Ludwig, Lisa G.; Parker, Jay W.; Rundle, John B.; Wang, Jun; Pierce, Marlon; Blewitt, Geoffrey; Hensley, Scott (2015)
    Tectonic motion across the Los Angeles region is distributed across an intricate network of strike-slip and thrust faults that will be released in destructive earthquakes similar to or larger than the 1933M6.4 Long Beach ...
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    Preface: Radiation from high energy density plasmas 

    Giuliani, John L.; Safronova, Alla S. (2016)
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    Progress toward a unified kJ-machine CANDY 

    Kitagawa, Yoneyoshi; Mori, Yoshitaka; Komeda, Osamu; Hanayama, Ryohei; Ishii, Katsuhiro; Okihara, Shinichiro; Fujita, Kazuhisa; Nakayama, Suisei; Sekine, Takashi; Sato, Nakahiro; Kurita, Takashi; Kawashima, Toshiyuki; Watari, Takeshi; Kan, Hirofumi; Nakamura, Naoki; Kondo, Takuya; Fujine, Manabu; Azuma, Hirozumi; Motohiro, Tomoyoshi; Hioki, Tatsumi; Kakeno, Mitsutaka; Nishimura, Yasuhiko; Sunahara, Atsushi; Sentoku, Yasuhiko; Miura, Eisuke; Arikawa, Yasunobu; Nagai, Takahiro; Abe, Yuki; Ozaki, Satoshi; Noda, Akira (2016)
    To construct a unified experimental machine CANDY using a kJ DPSSL driver in the fast -ignition scheme, the Laser for Fast Ignition Experiment (LFEX) at Osaka is used, showing that the laser-driven ions heat the preimploded ...
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    Progress Towards a Laser Produced Relativistic Electron-Positron Pair Plasma 

    Chen, Hui; Bonlie, J.; Cauble, R.; Fiuza, F.; Goldstein, W.; Hazi, A.; Keane, C.; Link, A.; Marley, E.; Nagel, S. R.; Park, J.; Shepherd, R.; Williams, G. J.; Meyerhofer, D. D.; Fiksel, G.; Barnak, D.; Chang, P. Y.; Nakai, Mitsuo; Arikawa, Yasunobu; Azechi, Hiroshi; Fujioka, Shinsuke; Kojima, Sadaoki; Miyanaga, Noriaki; Morita, T.; Nagai, Takahiro; Nishimura, Hiroaki; Ozaki, T.; Sakawa, Y.; Takabe, H.; Zhang, Z.; Kerr, S.; Fedosejevs, R.; Sentoku, Y.; Hill, M. P.; Hoarty, D. J.; Hobbs, L. M. R.; James, S. F. (2016)
    A set of experiments has been performed exploring unique characteristics of pair jets and plasmas at several energetic short-pulse laser facilities including Titan at Livermore and OMEGA EP in Rochester, as well as the ...
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    Proton imaging of an electrostatic field structure formed in laser-produced counter-streaming plasmas 

    Morita, T.; Kugland, N. L.; Wan, W.; Crowston, R.; Drake, R. P.; Fiuza, F.; Gregori, G.; Huntington, C.; Ishikawa, T.; Koenig, M.; Kuranz, C.; Levy, M. C.; Martinez, David A.; Meinecke, J.; Miniati, F.; Murphy, C. D.; Pelka, A.; Plechaty, C.; Presura, R.; Quiros-Aguilar, Nancy P.; Remington, B. A.; Reville, B.; Ross, J. S.; Ryutov, D. D.; Sakawa, Y.; Steele, L.; Takabe, H.; Yamaura, Y.; Woolsey, N.; Park, H.-S. (2016)
    We report the measurements of electrostatic field structures associated with an electrostatic shock formed in laser-produced counter-streaming plasmas with proton imaging. The thickness of the electrostatic structure is ...
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    Quantum Network of Atom Clocks: A Possible Implementation with Neutral Atoms 

    Kómár, Péter; Topcu, T.; Kessler, E. M.; Derevianko, Andrei; Vuletic, V.; Ye, J.; Lukin, Mikhail D. (2016)
    We propose a protocol for creating a fully entangled Greenberger-Horne-Zeilinger-type state of neutral atoms in spatially separated optical atomic clocks. In our scheme, local operations make use of the strong dipole-dipole ...
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    Relativistic configuration interaction plus linearized-coupled-cluster calculations of U2+ energies, g factors, transition rates, and lifetimes 

    Savukov, I.; Safronova, U. I.; Safronova, M. S. (2015)
    Excitation energies, term designations, g factors, transition rates, and lifetimes of U2+ are determined using a relativistic configuration interaction (CI) + linearized-coupled-cluster (LCC) approach. The CI-LCC energies ...
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    Relativistic many-body calculation of energies, lifetimes, polarizabilities, blackbody radiative shift, and hyperfine constants in Lu2+ 

    Safronova, U. I.; Safronova, M. S.; Johnson, W. R. (2016)
    Energy levels of 30 low-lying states of Lu2+ and allowed electric-dipole matrix elements between these states are evaluated using a relativistic all-order method in which all single, double, and partial triple excitations ...
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    Relativistic many-body calculation of energies, multipole transition rates, and lifetimes in tungsten ions 

    Safronova, U. I.; Safronova, M. S.; Nakamura, Nobuyuki (2017)
    Atomic properties of Cd-like W26+, In-like W25+, and Sn-like W24+ ions are evaluated by using a relativistic CI + all-order approach that combines configuration-interaction and the coupled-cluster methods. The energies, ...
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    Repetitive Solid Spherical Pellet Injection and Irradiation toward the Repetitive-mode Fast-Ignition Fusion mini-Reactor CANDY. 

    Hanayama, Ryohei; Komeda, Osamu; Nishimura, Yasuhiko; Mori, Yoshitaka; Ishii, Katsuhiro; Nakayama, Suisei; Okihara, Shinichiro; Fujita, Kazuhisa; Sekine, Takashi; Sato, Nakahiro; Kurita, Takashi; Kawashima, Toshiyuki; Kan, Hirofumi; Nakamura, Naoki; Kondo, Takuya; Fujine, Manabu; Azuma, Hirozumi; Hioki, Tatsumi; Kakeno, Mitsutaka; Motohiro, Tomoyoshi; Sunahara, Atsushi; Sentoku, Yasuhiko; Miura, Eisuke; Kitagawa, Yoneyoshi (2016)
    Pellet injection and repetitive laser illumination are key technologies for realizing inertial fusion energy[1-4]. Neutron generator using lasers also requires a repeating pellet target supplier. Here we present the first ...