Analysis of electron and microwave behavior in microwave discharge neutralizer

Hirokazu Masui, Yousuke Tashiro, Naoji Yamamoto, Hideki Nakashima, Ikkoh Funaki

研究成果: ジャーナルへの寄稿学術誌査読

12 被引用数 (Scopus)

抄録

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.

本文言語英語
ページ(範囲)87-93
ページ数7
ジャーナルTransactions of the Japan Society for Aeronautical and Space Sciences
49
164
DOI
出版ステータス出版済み - 12月 28 2006

!!!All Science Journal Classification (ASJC) codes

  • 航空宇宙工学
  • 宇宙惑星科学

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