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核聚变与等离子体物理 ›› 2008, Vol. 28 ›› Issue (2): 101-104.

• 等离子体物理学 • 上一篇    下一篇

Z箍缩等离子体MHD不稳定性的简化分析

丁 宁,张 扬,刘 全   

  1. (北京应用物理与计算数学研究所,北京 100088)
  • 收稿日期:2007-08-15 修回日期:2008-02-12 出版日期:2008-06-15 发布日期:2011-02-21
  • 作者简介:丁宁(1958-),女,江苏南京人,博士,研究员,主要从事托卡马克等离子体物理及Z箍缩等离子体物理研究。
  • 基金资助:

    国家自然科学基金资助项目(10575014,10635050,10775021);国防基础科研项目资助(A1520070074)

Simplified analysis of the MHD instability in Z-pinch plasmas

DING Ning, ZHANG Yang, LIU Quan   

  1. (Institute of Applied Physics and Computational Mathematics, Beijing 100088)
  • Received:2007-08-15 Revised:2008-02-12 Online:2008-06-15 Published:2011-02-21

摘要:

在Haines的理论模型基础上,将金属丝阵负载Z箍缩内爆等离子体MRT不稳定性发展的全过程划分为四个部分加以描述,并利用ZP-0D程序定性分析了丝阵参数和驱动器条件对不稳定性的影响。研究结果表明,增加丝阵的丝根数,能够明显改善Z箍缩的稳定状态,有利于提高箍缩停滞时等离子体的温度、密度及X射线产额。

关键词: Z箍缩内爆等离子体, MRT不稳定性, ZP-0D程序, 丝阵负载

Abstract:

Based on the theoretical model of Haines, the whole development procedure of MRT instability in the metal wire array Z-pinch implosion is divided into four phases. Using ZP-0D program, the effects of load parameters and the driving conditions on the MRT instability are researched. Calculation results suggest that the wire number increase could significantly improve the Z-pinch plasma stability, which benefits the increase of plasma temperature and mass density when it comes to the stagnation, and benefits the X-ray yield as well.

Key words: Z-pinch plasma, MRT instability, ZP-0D program, Wire-array load

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