Ion Acceleration in Arc Jet Plasma Along Open Field Lines
Ion Acceleration in Arc Jet Plasma Along Open Field Lines
复制标题
电弧喷射等离子体中沿开放场线的离子加速
DOI：
10.1109/tps.2009.2021422
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发表时间：
2009
影响因子：
1.5
通讯作者：
H. Akatsuka
中科院分区：
文献类型：
--
作者：
K. Yoshida;T. Shibata;A. Nezu;H. Matsuura;H. Akatsuka
我们通过实验研究了等离子体参数，包括离子声马赫数和沿开放场线流动的膨胀氦等离子体射流的流动方向。实验发现离子马赫数增加。我们讨论了离子加速的机制。由于离子不在电磁体中旋转，因此不会发生霍尔加速和涡流加速。我们研究了基于准一维流动模型的实验结果，包括空气动力效应和电场。我们的模型描述了离子加速。因此，可以得出结论，氦离子的加速既受到电场的加速，也受到超声速流动通道横截面积增加的加速，而超声速流动通道的横截面积增加是由磁通量守恒决定的。
We experimentally study plasma parameters including the ion acoustic Mach number and the flow direction of expanding helium plasma jet flowing along open field lines. It is experimentally found that the ion Mach number increases. We discuss the mechanism of the ion acceleration. Since the ions do not rotate in electromagnets, the Hall and the swirl acceleration do not occur. We investigate the experimental results based on quasi-1-D flow model including the aerodynamic effect and the electric field. Our model describes the ion acceleration. Therefore, it is concluded that the helium ions are accelerated both by the electric field and by the increasing cross-sectional area of the supersonic flowing channel, which is determined by the magnetic flux conservation.
DOI：
10.1585/jspf.78.1352
发表时间：
2002-12
期刊：
Journal of Plasma and Fusion Research
影响因子：
--
作者：
M. Inutake;A. Ando;K. Hattori;H. Tobari;T. Yagai
通讯作者：
M. Inutake;A. Ando;K. Hattori;H. Tobari;T. Yagai