Analysis of electron and microwave behavior in microwave discharge neutralizer

被引：0
|
作者：
Masui, Hirokazu [1 ,3 ]
Tashiro, Yousuke [1 ,4 ]
Yamamoto, Naoji [1 ]
Nakashima, Hideki [1 ]
Funaki, Ikkoh [2 ]
机构：
[1] Department of Advanced Energy Engineering Science, Kyushu University, Fukuoka, Japan
[2] Japan Aerospace Exploration Agency, Kanagawa, Japan
[3] Department of Electrical Engineering, Kyushu Institute of Technology, Fukuoka, Japan
[4] IHI Aerospace, Tokyo, Japan
来源：
Transactions of the Japan Society for Aeronautical and Space Sciences | 2006年 / 49卷 / 164期
关键词：
In the MUCES-C mission conducted by JAXA (Japan Aero Exploration Agency); a microwave neutralizer is mounted with a microwave ion engine on the HAYABUSA space probe. The neutralizer consists of an L-shaped antenna to inject microwaves and samarium cobalt magnets to provide ECR (electron cyclotron resonance). Plasma production of a higher density than the cutoff density is expected in the discharge chamber; but the neutralizer is so small that high-precision measurements using a probe are difficult. To clarify the plasma production mechanism in the microwave neutralizer; numerical analysis was conducted using u code coupling PIC (particle-in-cell) method; and a FDTD (finite-difference-time-domain) method. This paper describes effects caused by varying magnetic field configuration and antenna position in the neutralizer. The calculation results show that bringing the antenna closer to the ECR region is effective for plasma production. © 2006 The Japan Society for Aeronautical and Space Sciences;
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页码：87 / 93
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