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An initial design of hohlraum driven by a shaped laser pulse

Published online by Cambridge University Press:  20 July 2010

Ke Lan
Affiliation:
Institute of Applied Physics and Computational Mathematics, Beijing, People's Republic of China
Peijun Gu
Affiliation:
Institute of Applied Physics and Computational Mathematics, Beijing, People's Republic of China
Guoli Ren
Affiliation:
Institute of Applied Physics and Computational Mathematics, Beijing, People's Republic of China
Xin Li*
Affiliation:
Institute of Applied Physics and Computational Mathematics, Beijing, People's Republic of China
Changshu Wu
Affiliation:
Institute of Applied Physics and Computational Mathematics, Beijing, People's Republic of China
Wenyi Huo
Affiliation:
Institute of Applied Physics and Computational Mathematics, Beijing, People's Republic of China
Dongxian Lai
Affiliation:
Institute of Applied Physics and Computational Mathematics, Beijing, People's Republic of China
Xian-Tu He
Affiliation:
Institute of Applied Physics and Computational Mathematics, Beijing, People's Republic of China
*
Address correspondence and reprint requests to: Xin Li, Institute of Applied Physics and Computational Mathematics, P.O. Box 8009-14, Beijing, 100088, People's Republic of China. E-mail: li_xin@iapcm.ac.cn

Abstract

In this paper, the plasma-filling model was extrapolated to the case of a hohlraum driven by a shaped laser pulse, and this extended model was used to obtain an initial design of the hohlraum size. A density criterion of ne = 0.1 was used for designing hohlraums which have low plasma filling with maximum achievable radiation. The method was successfully used to design a half hohlraum size with a three-step laser pulse on SGIII prototype and a U hohlraum size with shaped laser pulse for ignition. It was shown that the extended model with the criterion can provide reasonable initial design of a hohlraum size for optimal designing with a two-dimensional code.

Type
Research Article
Copyright
Copyright © Cambridge University Press 2010

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