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

作　　者：Shi-Jia Chen Yan-Yun Ma Fu-Yuan Wu Xiao-Hu Yang Yun Yuan Ye Cui Rafael Ramis 陈诗佳;马燕云;吴福源;杨晓虎;袁赟;崔野;Rafael Ramis(Department of Physics,National University of Defense Technology,Changsha 410073,China;IFSA Collaborative Innovation Center,Shanghai Jiao Tong University,Shanghai 200240,China;College of Advanced Interdisciplinary Studies,National University of Defense Technology,Changsha 410073,China;Laboratory of Laser Plasmas School of Physics and Astronomy,Shanghai Jiao Tong University,Shanghai 200240,China;E.T.S.I.Aeronautica y del Espacio,Universidad Politecnica de Madrid,Spain)

机构地区：[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.Aeronautica y del Espacio,Universidad Politecnica de Madrid,Spain

出　　处：《Chinese Physics B》2021年第11期411-418,共8页中国物理B（英文版）

基　　金：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);Hunan Graduate Scientific Research Innovation Project (Grant No. CX20190001);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;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 

分 类 号：O38[理学—流体力学]