Effects of beam pressure on the MHD equilibria and stabilities in high beta helical plasmas

设计了一种测量粒子和热流的探针，并将其安装在螺旋管装置中，用于测量快离子再入的热流。开发了高β螺旋等离子体中快离子分布函数分析程序，并将其应用于中性束注入引起的束流压力分布及其各向异性的计算。利用蒙特-卡罗方法标定的磁探针信号，研究了磁轴位移对压力各向异性的依赖关系，并与一些理论模型进行了比较。

A probe to measure the particle and heat flux was designed and installed in a helical device, and it is applied to measure the heat flux from the reentering fast ions. The distribution function analyzing code of the fast ions in the high beta helical plasmas was developed, and it is applied to the evaluation of the beam pressure profile and its anisotropy induced by the neutral beam injection. The dependence of the magnetic axis shift on the pressure anisotropy was evaluated by the magnetic probe signal based on the calibration with the Monte-Carlo method, and its results are studied trough the comparison with some theoretical models.