Chinese Physics B, Volume. 29, Issue 10, (2020)

Hot-electron deposition and implosion mechanisms within electron shock ignition

Wan-Li Shang, Xing-Sen Che, Ao Sun, Hua-Bing Du, Guo-Hong Yang, Min-Xi Wei, Li-Fei Hou, Yi-Meng Yang, Wen-Hai Zhang, Shao-Yong Tu, Feng Wang, Hai-En He, Jia-Min Yang, Shao-En Jiang, and Bao-Han Zhang
Author Affiliations
  • Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China
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    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.

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    Wan-Li Shang, Xing-Sen Che, Ao Sun, Hua-Bing Du, Guo-Hong Yang, Min-Xi Wei, Li-Fei Hou, Yi-Meng Yang, Wen-Hai Zhang, Shao-Yong Tu, Feng Wang, Hai-En He, Jia-Min Yang, Shao-En Jiang, Bao-Han Zhang. Hot-electron deposition and implosion mechanisms within electron shock ignition[J]. Chinese Physics B, 2020, 29(10):

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    Paper Information

    Received: Jun. 1, 2020

    Accepted: --

    Published Online: Apr. 21, 2021

    The Author Email: Shang Wan-Li (wanlishang@gmail.com)

    DOI:10.1088/1674-1056/aba9c3

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