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Asymmetric implosion of a cone-guided target irradiated by Gekko XII laser

Published online by Cambridge University Press:  30 April 2015

T. Yanagawa ,
H. Sakagami ,
A. Sunahara  and
H. Nagatomo
T. Yanagawa*
Affiliation:
Department of Physics, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi, Japan
H. Sakagami
Affiliation:
Fundamental Physics Simulation Research Division, National Institute for Fusion Science, Oroshi-cho, Toki, Gifu, Japan
A. Sunahara
Affiliation:
Institute for Laser Technology, Suita, Osaka, Japan
H. Nagatomo
Affiliation:
Institute of Laser Engineering, Osaka University, Suita, Osaka, Japan
*
Address correspondence and reprint requests to: T. Yanagawa, Department of Physics, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan. E-mail: yanagawa.takumi@nifs.ac.jp
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Abstract

In implosion experiments of a cone-guided target using Gekko XII laser, the lasers on the cone side are not irradiated to avoid the irradiation of the cone. In such condition, the implosion process is done highly asymmetrically. Thus we evaluated the effects of the asymmetric implosion on the compression ratio of the fuel in Gekko XII irradiation orientation by three-dimensional hydro simulations. In this paper, we discuss the degradation of the compression ratio by asymmetric implosion and show that the compression ratio can be enhanced by adjusting the laser intensity between each beam to reduce the asymmetry of the implosion.

Keywords

Asymmetric implosionCone-guided targetHydrodynamic simulationInertial confinement fusion
Type
Research Article
Information
Laser and Particle Beams , Volume 33 , Issue 3 , September 2015 , pp. 367 - 378
Copyright
Copyright © Cambridge University Press 2015 

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