中国物理B ›› 2020, Vol. 29 ›› Issue (4): 45201-045201.doi: 10.1088/1674-1056/ab75d8

• PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES • 上一篇    下一篇

Hybrid-PIC/PIC simulations on ion extraction by electric field in laser-induced plasma

Xiao-Yong Lu(卢肖勇), Cheng Yuan(袁程), Xiao-Zhang Zhang(张小章), Zhi-Zhong Zhang(张志忠)   

  1. 1 Department of Engineering Physics, Tsinghua University, Beijing 100084, China;
    2 Science and Technology on Particle Transport and Separation Laboratory, CNNC, Tianjin 300180, China
  • 收稿日期:2020-01-07 修回日期:2020-02-02 出版日期:2020-04-05 发布日期:2020-04-05
  • 通讯作者: Xiao-Zhang Zhang E-mail:zhangxzh@mail.tsinghua.edu.cn

Hybrid-PIC/PIC simulations on ion extraction by electric field in laser-induced plasma

Xiao-Yong Lu(卢肖勇)1,2, Cheng Yuan(袁程)1,2, Xiao-Zhang Zhang(张小章)1, Zhi-Zhong Zhang(张志忠)2   

  1. 1 Department of Engineering Physics, Tsinghua University, Beijing 100084, China;
    2 Science and Technology on Particle Transport and Separation Laboratory, CNNC, Tianjin 300180, China
  • Received:2020-01-07 Revised:2020-02-02 Online:2020-04-05 Published:2020-04-05
  • Contact: Xiao-Zhang Zhang E-mail:zhangxzh@mail.tsinghua.edu.cn

摘要: The processes of electric ion extraction from plasma induced by pulse lasers are simulated by particle-in-cell (PIC) method and hybrid-PIC method. A new calculation scheme named preprocessing hybrid-PIC is presented because neither of the two methods above is omnipotent, especially under the circumstance of high initial plasma density. The new scheme provides credible results with less computational consumption than PIC method in both one- and two-dimensional simulations, except for Π-type electrode configuration. The simulation results show that the M-type performs best in all electrode configurations in both high-density and low-density plasma conditions.

关键词: ion extraction, particle-in-cell (PIC) method, hybrid-PIC, electrode configuration

Abstract: The processes of electric ion extraction from plasma induced by pulse lasers are simulated by particle-in-cell (PIC) method and hybrid-PIC method. A new calculation scheme named preprocessing hybrid-PIC is presented because neither of the two methods above is omnipotent, especially under the circumstance of high initial plasma density. The new scheme provides credible results with less computational consumption than PIC method in both one- and two-dimensional simulations, except for Π-type electrode configuration. The simulation results show that the M-type performs best in all electrode configurations in both high-density and low-density plasma conditions.

Key words: ion extraction, particle-in-cell (PIC) method, hybrid-PIC, electrode configuration

中图分类号:  (Particle-in-cell method)

  • 52.65.Rr
52.65.Ww (Hybrid methods)