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

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