Optimization of beam configuration for direct-driven fusion based on ICF indirect-driven laser facility

Li Fuquan; Han Wei; Wang Fang; Wu Wenkai; Chen Gang; Feng Bin; Zhang Xiaomin; Wei Xiaofeng; Li Mingzhong

doi:10.3788/HPLPB20132508.1961

Volume 25 Issue 08

Nov. 2013

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Article Navigation > High Power Laser and Particle Beams > 2013 > 25(08): 1961-1964

Zhou Xiaosong, Shen Huahai, Peng Shuming, et al. Thermal desorption behavior of ion-implanted helium from erbium and scandium films[J]. High Power Laser and Particle Beams, 2012, 24: 1169-1172. doi: 10.3788/HPLPB20122405.1169

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Li Fuquan, Han Wei, Wang Fang, et al. Optimization of beam configuration for direct-driven fusion based on ICF indirect-driven laser facility[J]. High Power Laser and Particle Beams, 2013, 25: 1961-1964. doi: 10.3788/HPLPB20132508.1961

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Optimization of beam configuration for direct-driven fusion based on ICF indirect-driven laser facility

doi: 10.3788/HPLPB20132508.1961

1.
Research Center of Laser Fusion,CAEP,Mianyang 621900,China;
2.
Institute of Structural Mechanics,CAEP,Mianyang 621900,China

Received Date: 2013-02-03
Rev Recd Date: 2013-03-14
Publish Date: 2013-06-19

Abstract

Abstract

To increase the flexibility of ICF laser facility and meet the requirements of indirect-driven and direct-driven fusions, the beam configuration should be optimized. This paper takes the Shenguang Ⅲ as an example facility which was originally designed for indirect-driven fusion. The beam configuration for direct-driven fusion is optimized through spherical-harmonic mode and three-dimensional irradiation field analysis. The optimization results show that the irradiation uniformity of the sphere target surface is less than 1%. Then irradiation uniformity and coupling efficiency are calculated with different laser profiles. The small and steep spot which direct-driven fusion requires is also obtained based on the beam configuration.
- ICF laser facility,
- direct-driven fusion,
- beam angle,
- spherical-harmonic mode analysis,
- irradiation field analysis

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