中国物理B ›› 2021, Vol. 30 ›› Issue (11): 115201-115201.doi: 10.1088/1674-1056/ac01c2

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Simulations on the multi-shell target ignition driven by radiation pulse in Z-pinch dynamic hohlraum

Shi-Jia Chen(陈诗佳)1, Yan-Yun Ma(马燕云)2,3,†, Fu-Yuan Wu(吴福源)2,4,‡, Xiao-Hu Yang(杨晓虎)1,2, Yun Yuan(袁赟)1, Ye Cui(崔野)1, and Rafael Ramis5   

  1. 1 Department of Physics, National University of Defense Technology, Changsha 410073, China;
    2 IFSA Collaborative Innovation Center, Shanghai Jiao Tong University, Shanghai 200240, China;
    3 College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha 410073, China;
    4 Laboratory of Laser Plasmas School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China;
    5 E. T. S. I. Aeronáutica y del Espacio, Universidad Politécnica de Madrid, Spain
  • 收稿日期:2021-03-20 修回日期:2021-04-30 接受日期:2021-05-16 出版日期:2021-10-13 发布日期:2021-11-06
  • 通讯作者: Yan-Yun Ma, Fu-Yuan Wu E-mail:yanyunma@126.com;fuyuan.wu@sjtu.edu.cn
  • 基金资助:
    Project supported by the Science Challenge Project (Grant No. TZ2018001), the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant Nos. XDA25051200 and XDA25050200), the National Natural Science Foundation of China (Grant Nos. 11705282 and 11775305), and Hunan Graduate Scientific Research Innovation Project (Grant No. CX20190001). R.R. has been supported by the spanish “Ministerio de Ciencia Innovación y Universidades” project RTI2018-098801-B-100, the Spanish “Ministerio de Economía y Competitividad” Project ENE2014-54960-R, and the EURO fusion Consortium project AWP15-ENR-01/CEA-02.

Simulations on the multi-shell target ignition driven by radiation pulse in Z-pinch dynamic hohlraum

Shi-Jia Chen(陈诗佳)1, Yan-Yun Ma(马燕云)2,3,†, Fu-Yuan Wu(吴福源)2,4,‡, Xiao-Hu Yang(杨晓虎)1,2, Yun Yuan(袁赟)1, Ye Cui(崔野)1, and Rafael Ramis5   

  1. 1 Department of Physics, National University of Defense Technology, Changsha 410073, China;
    2 IFSA Collaborative Innovation Center, Shanghai Jiao Tong University, Shanghai 200240, China;
    3 College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha 410073, China;
    4 Laboratory of Laser Plasmas School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China;
    5 E. T. S. I. Aeronáutica y del Espacio, Universidad Politécnica de Madrid, Spain
  • Received:2021-03-20 Revised:2021-04-30 Accepted:2021-05-16 Online:2021-10-13 Published:2021-11-06
  • Contact: Yan-Yun Ma, Fu-Yuan Wu E-mail:yanyunma@126.com;fuyuan.wu@sjtu.edu.cn
  • Supported by:
    Project supported by the Science Challenge Project (Grant No. TZ2018001), the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant Nos. XDA25051200 and XDA25050200), the National Natural Science Foundation of China (Grant Nos. 11705282 and 11775305), and Hunan Graduate Scientific Research Innovation Project (Grant No. CX20190001). R.R. has been supported by the spanish “Ministerio de Ciencia Innovación y Universidades” project RTI2018-098801-B-100, the Spanish “Ministerio de Economía y Competitividad” Project ENE2014-54960-R, and the EURO fusion Consortium project AWP15-ENR-01/CEA-02.

摘要: We present the first simulation results of a multi-shell target ignition driven by Z-pinch dynamic hohlraum radiation pulse. The radiation pulse is produced with a special Z-pinch dynamic hohlraum configuration, where the hohlraum is composed of a single metal liner, a low-Z plastic foam, and a high-Z metallic foam. The implosion dynamics of a hohlraum and a multi-shell target are investigated separately by the one-dimensional code MULTI-IFE. When the peak drive current is 50 MA, simulations suggest that an x-ray pulse with nearly constant radiation temperature (~ 310 eV) and a duration about 9 ns can be obtained. A small multi-shell target with a radius of 1.35 mm driven by this radiation pulse is able to achieve volumetric ignition with an energy gain (G) about 6.19, where G is the ratio of the yield to the absorbed radiation. Through this research, we better understand the effects of non-uniformities and hydrodynamics instabilities in Z-pinch dynamic hohlraum.

关键词: Z-pinch, dynamic hohlraum, radiation pulse, volumetric ignition

Abstract: We present the first simulation results of a multi-shell target ignition driven by Z-pinch dynamic hohlraum radiation pulse. The radiation pulse is produced with a special Z-pinch dynamic hohlraum configuration, where the hohlraum is composed of a single metal liner, a low-Z plastic foam, and a high-Z metallic foam. The implosion dynamics of a hohlraum and a multi-shell target are investigated separately by the one-dimensional code MULTI-IFE. When the peak drive current is 50 MA, simulations suggest that an x-ray pulse with nearly constant radiation temperature (~ 310 eV) and a duration about 9 ns can be obtained. A small multi-shell target with a radius of 1.35 mm driven by this radiation pulse is able to achieve volumetric ignition with an energy gain (G) about 6.19, where G is the ratio of the yield to the absorbed radiation. Through this research, we better understand the effects of non-uniformities and hydrodynamics instabilities in Z-pinch dynamic hohlraum.

Key words: Z-pinch, dynamic hohlraum, radiation pulse, volumetric ignition

中图分类号:  (Z-pinches, plasma focus, and other pinch devices)

  • 52.58.Lq
52.59.Qy (Wire array Z-pinches)