Experimental characterization and modelling of the particle source in an Electron-Cyclotron wave driven toroidal plasma
Experimental characterization and modelling of the particle source in an Electron-Cyclotron wave driven toroidal plasma
复制标题
电子回旋波驱动环形等离子体中粒子源的实验表征和建模
DOI：
10.1088/0741-3335/48/8/001
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发表时间：
2006
影响因子：
2.2
通讯作者：
F. Poli
中科院分区：
文献类型：
--
作者：
Mario Podesta;A. Fasoli;B. Labit;M. McGrath;S. Müller;F. Poli
在简单磁化环面鱼雷中研究了电子回旋频率范围内微波电离产生的等离子体粒子源（Fasoli A et al . 2006 Phys）。等离子体13 055902)，以及它对实验参数的依赖，如吸收的微波功率，磁场结构和中性气体压力。热电子和在等离子体共振下加速的超热电子对电离率的相对贡献通过全局粒子平衡进行了量化。根据实验结果和简单的数值代码推导出粒子源的空间分布表达式。
The plasma particle source resulting from ionization by microwaves in the electron-cyclotron range of frequencies is investigated in the simple magnetized torus TORPEX (Fasoli A et al 2006 Phys. Plasmas 13 055902), together with its dependence upon experimental parameters, such as the absorbed microwave power, the magnetic field configuration and the neutral gas pressure. The relative contributions to the ionization rate from thermal electrons and from suprathermal electrons accelerated at the plasma resonances are quantified through a global particle balance. An expression for the spatial profile of the particle source is derived from the experimental results and a simple numerical code.