Suppressing kelvin–helmholtz instability with an external magnetic field,Plasma Physics and Controlled Fusion

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Suppressing kelvin–helmholtz instability with an external magnetic field
Plasma Physics and Controlled Fusion ( IF 2.1 ) Pub Date : 2020-05-05 , DOI: 10.1088/1361-6587/ab84ad
Wei Sun ₁ , Jiayong Zhong _{1,

2} , Zhu Lei ₃ , Shu Zhang ₄ , Lifeng Wang ₅ , Kaige Zhao ₅ , Weiming An ₁ , Yongli Ping ₁ , Bo Han ₁ , Dawei Yuan ₆ , Bowei Tong ₁ , Qian Zhang ₁ , Xiaoxia Yuan ₁ , Baojun Zhu ₇ , Zhe Zhang ₇ , Yutong Li _{2,

7} , Bin Qiao _{2,

3} , Lei Cheng ₇ , Jianzhao Wang ₁ , Chunqing Xing ₁ , Weiman Jiang ₇ , Huigang Wei ₆ , Guiyun Liang ₆ , Zhiyong Xie ₈ , Chen Wang ₈ , Mengqi Jin ₁ , Gang Zhao ₆ , Jie Zhang _{2,

9}

Affiliation

Department of Astronomy, Beijing Normal University, Beijing100875, People’s Republic of China
Collaborative Innovation Center of IFSA (CICIFSA), Shanghai Jiao Tong University, Shanghai 200240 People’s Republic of China
Center for Applied Physics and Technology, HEDPS, State Key Laboratory of Nuclear Physics and Technology, and School of Physics, Peking University, Beijing 100871 People’s Republic of China
Department of Mechanical and Aerospace Engineering, University of California San Diego, La Jolla 92093 United States of America
Institute of Applied Physics and Computational Mathematics, Beijing 100094 People’s Republic of China
Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, Beijing100012 People’s Republic of China
Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190 People’s Republic of China
Shanghai Institute of Laser Plasma, China Academy of Engineering Physics, Shanghai 201800 People’s Republic of China
Key Laboratory for Laser Plasmas (MoE) and Department of Physics, Shanghai Jiao Tong University, Shanghai 200240 People’s Republic of China

We discuss the formation of a Kelvin–Helmholtz instability (KHI) produced by a laser-driven thin separate plastic (CH) foil plasma. The experimental design consists of magnetized plasma driven by intense laser irradiation and a small cylindrical permanent magnet. By comparing situations with and without an external magnetic field, we found that the KHI showed different rolling features which could be effectively suppressed by an external magnetic field. A quantitative analysis shows the consistency between the experiments and theory.

中文翻译：

用外部磁场抑制开尔文-亥姆霍兹不稳定性

我们讨论了由激光驱动的薄分离塑料 (CH) 箔等离子体产生的开尔文-亥姆霍兹不稳定性 (KHI) 的形成。实验设计包括由强激光照射驱动的磁化等离子体和一个小的圆柱形永磁体。通过比较有外磁场和无外磁场的情况，我们发现KHI表现出不同的滚动特征，可以有效地抑制外磁场。定量分析显示了实验和理论之间的一致性。

更新日期：2020-05-05

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