计算物理 ›› 1986, Vol. 3 ›› Issue (3): 324-334.

• 论文 • 上一篇    下一篇

激光(I=1014-1015wcm-2,λ=1.06μm)等离子体参量不稳定性加热

张家泰1, 刘成海2, 李佑明1, 许林宝1, 张书贵1   

  1. 1. 应用物理与计算数学研究所;
    2. 中国科学院原子能研究所
  • 收稿日期:1985-05-29 修回日期:1986-06-20 出版日期:1986-09-25 发布日期:1986-09-25

LASER (I=1014-1015wcm-2,λ=1.06μm) PLASMA HEATING DUE TO PARAMETRIC LNSTABILITIES

Zhang Jia-tai1, Liu Cheng-hai2, Li You-min1, Xu Lin-bao1, Zhang Shu-gui1   

  1. 1. Institute of Applied Pnysics and Computational Mathematics, Beijing;
    2. Institute of Atomic Energy Academia Sinica
  • Received:1985-05-29 Revised:1986-06-20 Online:1986-09-25 Published:1986-09-25

摘要: 本文利用一维半粒子云网格(Cloud-in-Ccll)程序,对激光打靶中的参量不稳定性引起的湍流加热进行了数值模拟研究。得到的线性增长率和理论预估合理地符合;还得到了非线性加热率、受热电子的速度分布、波纹临界密度面和离子坑等物理图象。对这些结果进行了分析和讨论。

Abstract: In this paper we study the laser plasma turbulent heating due to parametric instabilities by the numerical simulation method based on one and a half-dimensional cloud-in-cell scheme.The computer simulation results show that linear growth rate of the parametric instabilities is in reasonable agreement withthe theoretical predic tion. We also give the computer simulation results on no-nlinear heating rate,the heated electron distribution function,the ripple surfaceof the critical density and the caviton, These results are discussed.