Journal ArticleDOI
Control of Micro- and Nano-Structure in Ultralow-Density Hydrocarbon Foam
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In this article, ultralow density (2~10 mg/cm3) hydrocarbon plastic (CH2) foams with a controllable micro- or nano-meter-sized lamella structure are described.Abstract:
The present report describes ultralow density (2~10 mg/cm3) hydrocarbon plastic (CH2) foams with a controllable micro- or nano-meter-sized lamella structure. These foams are prepared from a poly(4-...read more
Citations
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Targets for high repetition rate laser facilities: needs, challenges and perspectives
Irene Prencipe,Julien Fuchs,Sakura Pascarelli,Douglass Schumacher,Richard B. Stephens,Neil Alexander,Richard Briggs,Markus Büscher,Mihail Octavian Cernaianu,Andrei Choukourov,M. De Marco,Artur Erbe,Jürgen Fassbender,Guillaume Fiquet,P. Fitzsimmons,C.C. Gheorghiu,J. Hund,L. G. Huang,Marion Harmand,N. J. Hartley,Arie Irman,Thomas Kluge,Zuzana Konôpková,Stephan Kraft,Dominik Kraus,V. Leca,Daniele Margarone,J. Metzkes,Keiji Nagai,Wigen Nazarov,P. Lutoslawski,Daniel Papp,Matteo Passoni,A. Pelka,Jean-Paul Perin,Joachim Schulz,Michal Smid,C. Spindloe,Sven Steinke,R. Torchio,Cs. Vass,Tuomas Wiste,Rosa Letizia Zaffino,Karl Zeil,Thomas Tschentscher,Ulrich Schramm,Thomas E. Cowan +46 more
TL;DR: In this paper, the authors report on target needs for three different classes of experiments: dynamic compression physics, electron transport and isochoric heating, and laser-driven particle and radiation sources.
Journal ArticleDOI
A review of low density porous materials used in laser plasma experiments
TL;DR: In this paper, the synthesis and properties of low density porous materials, which are commonly referred to as foams and are utilized for laser plasma experiments, are described and categorized in detail.
Journal ArticleDOI
Recent experiments on the hydrodynamics of laser-produced plasmas conducted at the PALS laboratory
Dimitri Batani,R. Dezulian,R. Redaelli,Roberto Benocci,H. Stabile,F. Canova,Tara Desai,G. Lucchini,E. Krousky,K. Masek,Miroslav Pfeifer,Jiri Skala,R. Dudzak,Bedrich Rus,J. Ullschmied,Victor Malka,Jérôme Faure,M. Koenig,Jiri Limpouch,Wigen Nazarov,D.A. Pepler,Keiji Nagai,Takayoshi Norimatsu,Hiroaki Nishimura +23 more
TL;DR: In this paper, the Prague PALS iodine laser was used to study the hydrodynamics of laser-generated plasmas in a quasi-one-dimensional regime with large focal spots and smoothed laser beams.
Journal ArticleDOI
Foam materials for cryogenic targets of fast ignition realization experiment (FIREX)
Keiji Nagai,Hiroshi Azechi,Fuyumi Ito,Akifumi Iwamoto,Y. Izawa,Tomoyuki Johzaki,Ryosuke Kodama,Kunioki Mima,Toshiyuki Mito,Mitsuo Nakai,Nobukatsu Nemoto,Takayoshi Norimatsu,Y. Ono,Keisuke Shigemori,Hiroyuki Shiraga,Kokichi Tanaka +15 more
TL;DR: In this paper, the development of foam materials for cryogenically cooled fuel targets is described as a part of the fast ignition realization experiment (FIREX) project at the ILE, Osaka University under a bilateral collaboration between Osaka University and National Institute for Fusion Science.
Journal ArticleDOI
Fabrication of aerogel capsule, bromine-doped capsule, and modified gold cone in modified target for the Fast Ignition Realization Experiment (FIREX) Project
Keiji Nagai,H. Yang,Takayoshi Norimatsu,Hiroshi Azechi,F. Belkada,Yasushi Fujimoto,Takeshi Fujimura,Kana Fujioka,Shinsuke Fujioka,H. Homma,Fuyumi Ito,Akifumi Iwamoto,Takahisa Jitsuno,Yumi Kaneyasu,M. Nakai,Nobukatsu Nemoto,H. Saika,T. Shimoyama,Yoshiki Suzuki,K. Yamanaka,K. Mima +20 more
TL;DR: In this article, a high quality bromine-doped capsule without vacuoles was fabricated from polystyrene and the gold surface was coated with a low-density material by electrochemical plating.
References
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Journal ArticleDOI
Nuclear fusion driven by coulomb explosions of large deuterium clusters
TL;DR: It is found that the fusion yield from these exploding clusters varies strongly with the cluster size, consistent with acceleration of deuterons via Coulomb explosion forces.
Journal ArticleDOI
Laser imprint reduction using a low-density foam buffer as a thermal smoothing layer at 351-nm wavelength
Robert G. Watt,J. R. Duke,C. J. Fontes,P. L. Gobby,R. V. Hollis,R. A. Kopp,R. J. Mason,Doug Wilson,C. P. Verdon,T. R. Boehly,J. P. Knauer,D. D. Meyerhofer,V. A. Smalyuk,Richard Town,A. Iwase,O. Willi +15 more
Journal ArticleDOI
Observation of Transonic Ionization Fronts in Low-Density Foam Targets
TL;DR: In this article, a transonic ionization front was observed in low-density chlorinated foam targets using time-resolved $K$-shell absorption spectroscopy, driven by an intense pulse of soft x rays produced by high-power laser irradiation of a thin foil.
Journal ArticleDOI
Indirect-direct hybrid target experiments with the GEKKO XII laser
Hiroaki Nishimura,Hiroyuki Shiraga,Hiroshi Azechi,N. Miyanaga,Mitsuo Nakai,Nobuhiko Izumi,Masaharu Nishikino,Manabu Heya,Katsumasa Fujita,Yoshihiro Ochi,Keisuke Shigemori,Naofumi Ohnishi,M. Murakami,Katsunobu Nishihara,R. Ishizaki,Hideaki Takabe,Keiji Nagai,Takayoshi Norimatsu,Masahiro Nakatsuka,T. Yamanaka,S. Nakai,Chihiro Yamanaka,K. Mima +22 more
TL;DR: In this article, the authors investigated the hybrid effect for two types of indirect-direct hybrid target, in which the fuel capsule has a low density foam layer attached directly on its surface and where pulsed radiation generated from a thin high Z layer on the foam propagates through the foam, creating a preformed plasma.
Journal ArticleDOI
Equation-of-state measurements of polyimide at pressures up to 5.8 TPa using low-density foam with laser driven shock waves
K. Takamatsu,Norimasa Ozaki,Kazuo Tanaka,T. Ono,Keiji Nagai,M. Nakai,Takeshi Watari,Atsushi Sunahara,M. Nakano,T. Kataoka,Hisataka Takenaka,Masatake Yoshida,Keitaro Kondo,T. Yamanaka +13 more
TL;DR: The laser-driven equation-of-state (EOS) experiments for polyimide are presented and Hugoniot data were obtained up to 0.6 TPa with good accuracy, in agreement with the theoretical curves.