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首頁 > 論文 > Matter and Radiation at Extremes > 3卷 > 5期(pp:248-255)

Numerical studies on the radiation uniformity of Z-pinch dynamic hohlraum

Numerical studies on the radiation uniformity of Z-pinch dynamic hohlraum

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Abstract

Radiation uniformity is important for Z-pinch dynamic hohlraum driven fusion. In order to understand the radiation uniformity of Z-pinch dynamic hohlraum, the code MULTI-2D with a new developed magnetic field package is employed to investigate the related physical processes on Julong-I facility with drive current about 7e8 MA. Numerical simulations suggest that Z-pinch dynamic hohlraum with radiation temperature more than 100 eV can be created on Julong-I facility. Although some X-rays can escape out of the hohlraum from Z-pinch plasma and electrodes, the radiation field near the foam center is quite uniform after a transition time. For the load parameters used in this paper, the transition time for the thermal wave transports from r = 1 mm to r = 0 mm is about 2.0 ns. Implosion of a testing pellet driven by cylindrical dynamic hohlraum shows that symmetrical implosion is hard to achieve due to the relatively slow propagation speed of thermal wave and the compression of cylindrical shock in the foam. With the help of quasi-spherical implosion, the hohlraum radiation uniformity and corresponding pellet implosion symmetry can be significantly improved thanks to the shape modulation of thermal wave front and shock wave front.

Newport宣傳-MKS新實驗室計劃
補充資料

基金項目:This work was supported by the National Natural Science Foundation of China (Nos. 11374357, 11475153, 11705282, and 11475260), Science Challenge Project (No.TZ2018001), Research Project of NUDT (Grant No. ZK16-03-29), the Spanish Ministerio de Economia y Competivida project (No. ENE2014-54960-R), and the EUROfusion Consortium project AWP15-ENR-01/CEA-02.

收稿日期:2017-10-11

修改稿日期:2018-05-06

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Fuyuan Wu:College of Liberal Arts and Sciences, National University of Defense Technology, Changsha, 410073, ChinaInstitute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, 621900, ChinaE.T.S.I. Aeronauticos y del Espacio, Universidad Politecnica de Madrid, Madrid, 28040, Spain
Yanyun Chu:Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, 621900, China
Rafael Ramis:E.T.S.I. Aeronauticos y del Espacio, Universidad Politecnica de Madrid, Madrid, 28040, Spain
Zhenghong Li:Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, 621900, China
Yanyun Ma:College of Liberal Arts and Sciences, National University of Defense Technology, Changsha, 410073, ChinaIFSA Collaborative Innovation Center, Shanghai Jiao Tong Univeristy, Shanghai, 200240, China
Jianlun Yang:Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, 621900, China
Zhen Wang:Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, 621900, China
Fan Ye:Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, 621900, China
Zhanchang Huang:Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, 621900, China
Jianmin Qi:Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, 621900, China
Lin Zhou:Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, 621900, China
Chuan Liang:Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, 621900, China
Shijia Chen:College of Liberal Arts and Sciences, National University of Defense Technology, Changsha, 410073, China
Zheyi Ge:College of Liberal Arts and Sciences, National University of Defense Technology, Changsha, 410073, China
Xiaohu Yang:College of Liberal Arts and Sciences, National University of Defense Technology, Changsha, 410073, China
Shangwu Wang:College of Liberal Arts and Sciences, National University of Defense Technology, Changsha, 410073, China

聯系人作者:Z. Li([email protected])

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引用該論文

Fuyuan Wu,Yanyun Chu,Rafael Ramis,Zhenghong Li,Yanyun Ma,Jianlun Yang,Zhen Wang,Fan Ye,Zhanchang Huang,Jianmin Qi,Lin Zhou,Chuan Liang,Shijia Chen,Zheyi Ge,Xiaohu Yang,Shangwu Wang. Numerical studies on the radiation uniformity of Z-pinch dynamic hohlraum[J]. Matter and Radiation at Extremes, 2018, 3(5): 248-255

Fuyuan Wu,Yanyun Chu,Rafael Ramis,Zhenghong Li,Yanyun Ma,Jianlun Yang,Zhen Wang,Fan Ye,Zhanchang Huang,Jianmin Qi,Lin Zhou,Chuan Liang,Shijia Chen,Zheyi Ge,Xiaohu Yang,Shangwu Wang. Numerical studies on the radiation uniformity of Z-pinch dynamic hohlraum[J]. Matter and Radiation at Extremes, 2018, 3(5): 248-255

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