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.
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)
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
