Hot-electron deposition and implosion mechanisms within electron shock ignition

doi:10.1088/1674-1056/aba9c3

中国物理B ›› 2020, Vol. 29 ›› Issue (10): 105201-.doi: 10.1088/1674-1056/aba9c3

Wan-Li Shang(尚万里)¹^,†(), Xing-Sen Che(车兴森)¹, Ao Sun(孙奥)¹, Hua-Bing Du(杜华冰)¹, Guo-Hong Yang(杨国洪)¹, Min-Xi Wei(韦敏习)¹, Li-Fei Hou(侯立飞)¹, Yi-Meng Yang(杨轶濛)¹, Wen-Hai Zhang(张文海)¹, Shao-Yong Tu(涂绍勇)¹, Feng Wang(王峰)¹, Hai-En He(何海恩)¹, Jia-Min Yang(杨家敏)¹, Shao-En Jiang(江少恩)¹, Bao-Han Zhang(张保汉)¹

收稿日期:2020-06-01 修回日期:2020-07-12 接受日期:2020-07-28 出版日期:2020-10-05 发布日期:2020-10-05
通讯作者: Wan-Li Shang(尚万里)

Hot-electron deposition and implosion mechanisms within electron shock ignition

Wan-Li Shang(尚万里)†, Xing-Sen Che(车兴森), Ao Sun(孙奥), Hua-Bing Du(杜华冰), Guo-Hong Yang(杨国洪), Min-Xi Wei(韦敏习), Li-Fei Hou(侯立飞), Yi-Meng Yang(杨轶濛), Wen-Hai Zhang(张文海), Shao-Yong Tu(涂绍勇), Feng Wang(王峰), Hai-En He(何海恩), Jia-Min Yang(杨家敏), Shao-En Jiang(江少恩), and Bao-Han Zhang(张保汉)

¹ Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China

Received:2020-06-01 Revised:2020-07-12 Accepted:2020-07-28 Online:2020-10-05 Published:2020-10-05
Contact: ^†Corresponding author. E-mail: wanlishang@gmail.com
About author:
†Corresponding author. E-mail: wanlishang@gmail.com
* Project supported by the National Natural Science Foundation of China (Grant No. 11775203) and the Presidential Foundation of China Academy of Engineering Physics (Grant No. YZJJLX 2016007).

摘要/Abstract

Abstract:

A hot-electron driven scheme can be more effective than a laser-driven scheme within suitable hot-electron energy and target density. In our one-dimensional (1D) radiation hydrodynamic simulations, 20× pressure enhancement was achieved when the ignitor laser spike was replaced with a 60-keV hot-electron spike in a shock ignition target designed for the National Ignition Facility (NIF), which can lead to greater shell velocity. Higher hot-spot pressure at the deceleration phase was obtained owing to the greater shell velocity. More cold shell material is ablated into the hot spot, and it benefits the increases of the hot-spot pressure. Higher gain and a wider ignition window can be observed in the hot-electron-driven shock ignition.

Key words: shock ignition, inertial confinement fusion, hot electron, plasma fusion

中图分类号: (Other confinement methods)

52.58.-c

52.57.-z (Laser inertial confinement) 81.15.Jj (Ion and electron beam-assisted deposition; ion plating) 89.30.Jj (Nuclear fusion power)

Wan-Li Shang(尚万里), Xing-Sen Che(车兴森), Ao Sun(孙奥), Hua-Bing Du(杜华冰), Guo-Hong Yang(杨国洪), Min-Xi Wei(韦敏习), Li-Fei Hou(侯立飞), Yi-Meng Yang(杨轶濛), Wen-Hai Zhang(张文海), Shao-Yong Tu(涂绍勇), Feng Wang(王峰), Hai-En He(何海恩), Jia-Min Yang(杨家敏), Shao-En Jiang(江少恩), Bao-Han Zhang(张保汉). [J]. 中国物理B, 2020, 29(10): 105201-.

图/表 9

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Hot-electron deposition and implosion mechanisms within electron shock ignition

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