X-ray spectroscopic analysis of the influence of low-modal nonuniformity on the formation of a hot spark

Yoshihiro Ochi; Mitsuhiro Fukao; J. Sunahara; Hiroaki Nishimura; Kazuhisa Fujita; Tohru Kawamura; Hiroyuki Shiraga; Noriaki Miyanaga; Hiroshi Azechi; Hideaki Takabe; Kunioki Mima; Tatsuhiko Yamanaka; Sadao Nakai; Randolf Butzbach; Ingo Uschmann; Eckhart Foerster

doi:10.1117/12.375142

11 January 2000 X-ray spectroscopic analysis of the influence of low-modal nonuniformity on the formation of a hot spark

Yoshihiro Ochi, Mitsuhiro Fukao, J. Sunahara, Hiroaki Nishimura, Kazuhisa Fujita, Tohru Kawamura, Hiroyuki Shiraga, Noriaki Miyanaga, Hiroshi Azechi, Hideaki Takabe, Kunioki Mima, Tatsuhiko Yamanaka, Sadao Nakai, Randolf Butzbach, Ingo Uschmann, Eckhart Foerster

Author Affiliations +

Proceedings Volume 3886, High-Power Lasers in Energy Engineering; (2000) https://doi.org/10.1117/12.375142
Event: Advanced High-Power Lasers and Applications, 1999, Osaka, Japan

Abstract

In the direct-drive scheme implosion of the inertial confinement fusion, the hot spark formation is critically affected by laser irradiation non-uniformities and subsequent hydrodynamic instabilities. Influence of the low- modal irradiation non-uniformities on the hot spark formation was investigated by means of the time- and space- resolved x-ray spectroscopic measurements. Experimental results were compared with post-processed hydro-code simulations by the aid of x-ray spectrum analysis code.

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Yoshihiro Ochi, Mitsuhiro Fukao, J. Sunahara, Hiroaki Nishimura, Kazuhisa Fujita, Tohru Kawamura, Hiroyuki Shiraga, Noriaki Miyanaga, Hiroshi Azechi, Hideaki Takabe, Kunioki Mima, Tatsuhiko Yamanaka, Sadao Nakai, Randolf Butzbach, Ingo Uschmann, and Eckhart Foerster "X-ray spectroscopic analysis of the influence of low-modal nonuniformity on the formation of a hot spark", Proc. SPIE 3886, High-Power Lasers in Energy Engineering, (11 January 2000); https://doi.org/10.1117/12.375142

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