Design of an Indirect-Drive Pulse Shape for ~1.6 MJ Inertial Confinement Fusion Ignition Capsules

作     者：WANG Li-Feng WU Jun-Feng YE Wen-Hua FAN Zheng-Feng HE Xian-Tu 

作者机构：Institute of Applied Physics and Computational Mathematics Beijing 100094 HEDPS Center for Applied Physics and Technology Peking Universir~y Beijing 100871 

出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)

年 卷 期：2014年第31卷第4期

页      面：89-92页

核心收录：

学科分类：08[工学] 082701[工学-核能科学与工程] 0827[工学-核科学与技术] 0803[工学-光学工程] 

基　　金：Supported by the National Natural Science Foundation of China under Grant Nos 11275031  11105013  11205017  11274026  and the National Basic Research Program of China under Grant No 2013CB834100 

主　　题：INERTIAL confinement fusion HYDRODYNAMICS DEUTERIUM TRITIUM SHOCK waves 

摘      要：We present a design of indirect-drive pulse shape for inertial confinement fusion ignition capsules using laser energy 1.6 MJ with a moderate gain （~10） on the Shenguang 1V laser facility. The trade-off fuel compression （pressure） for resistance to the hydrodynamic instability （HI） in the recent high-foot （HF） implosion campaign [Dittrieh T t et al Phys. Rev. Lett. 112 （2014）055002] is recovered. The proposed design modifies the ＂main＂ pulse shape, which features a decompression-recompression step for the fuel shell resulting in higher areal density than that of the ＂simple＂ HF design, and thereby approaches the conditions required for ignition avoiding at the expense of more laser energy while holding the HI under control.