Relaxation of Surface Tension Waves on a Liquid Metal Mirror for a Fast-Ignition Laser Fusion Plant

Takayoshi Norimatsu; Oleg Kotyaev; Yoshinori Shimada; Shinri Kurahashi; Shinji Motokoshi; Katsuhiro Mikami; Kei Sasaki; Takahisa Jitsuno; Kohei Yamanoi; Hiroyuki Furukawa; Tomoaki Kunugi

doi:dx.doi.org/10.13182/FST15-206

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Relaxation of Surface Tension Waves on a Liquid Metal Mirror for a Fast-Ignition Laser Fusion Plant

Takayoshi Norimatsu, Oleg Kotyaev, Yoshinori Shimada, Shinri Kurahashi, Shinji Motokoshi, Katsuhiro Mikami, Kei Sasaki, Takahisa Jitsuno, Kohei Yamanoi, Hiroyuki Furukawa, Tomoaki Kunugi

Fusion Science and Technology / Volume 70 / Number 3 / November 2016 / Pages 417-422

Technical Paper / dx.doi.org/10.13182/FST15-206

First Online Publication:September 21, 2016

Updated:November 2, 2016

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A grazing incidence, shallow liquid metal mirror could be used as the final optic for the heating laser in a fast-ignition fusion power plant. The relaxation of vibrations on the surface of liquid mercury following laser irradiation was measured experimentally in this study. The results suggested that vibrations on a 0.25-mm-thick mirror were small enough to allow 4-Hz laser operation.

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Relaxation of Surface Tension Waves on a Liquid Metal Mirror for a Fast-Ignition Laser Fusion Plant