A monitoring System for the Real-Time Characterization of Cryogenic Fuel Layer in Laser-Fusion Targets

Masahiro TSUKAMOTO; Ryosuke KODAMA; Masataka KADO; Hajime ITO; Masaki YASUMOTO; Takayoshi NORIMATSU; Mitsuo NAKAI; Kazuo A. TANAKA; Tatsuhiko YAMANAKA; Sadao NAKAI

doi:10.2184/lsj.18.9_724

Masahiro TSUKAMOTO, Ryosuke KODAMA, Masataka KADO, Hajime ITO, Masaki YASUMOTO, Takayoshi NORIMATSU, Mitsuo NAKAI, Kazuo A. TANAKA, Tatsuhiko YAMANAKA, Sadao NAKAI

Author information

Masahiro TSUKAMOTO
Institute of Laser Engneering, Osaka University
Ryosuke KODAMA
Institute of Laser Engneering, Osaka University
Masataka KADO
Institute of Laser Engneering, Osaka University
Hajime ITO
Nippon Sanso K. K.
Masaki YASUMOTO
Institute of Laser Engneering, Osaka University
Takayoshi NORIMATSU
Institute of Laser Engneering, Osaka University
Mitsuo NAKAI
Institute of Laser Engneering, Osaka University
Kazuo A. TANAKA
Institute of Laser Engneering, Osaka University
Tatsuhiko YAMANAKA
Institute of Laser Engneering, Osaka University
Sadao NAKAI
Institute of Laser Engneering, Osaka University

Keywords: Cryogenic target, Monitoring system, Interferometer, Fuel layer uniformity

JOURNAL FREE ACCESS

1990 Volume 18 Issue 9 Pages 724-731

DOI https://doi.org/10.2184/lsj.18.9_724

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Abstract

We have developed a monitoring system for the real-time characterization of cryogenic fuel layer in laser-fusion targets. This system is composed of an imaging interferometer, in addition to a normal target postion monitor with a single optical path. The fabrication process of a solid fuel layer in a plastic spherical shell is observed with this system. Solid fuel layer uniformity is displayed as concentric interference patterns. The distortions of the interference patterns can be interpreted as fuel layer nonuniformities.

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