Analysis of electron and microwave behavior in microwave discharge neutralizer

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

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)87-93
Number of pages7
JournalTransactions of the Japan Society for Aeronautical and Space Sciences
Volume49
Issue number164
DOIs
Publication statusPublished - Dec 28 2006

Fingerprint

neutralizers
Plasma sources
Microwaves
antenna
microwaves
electron
Electron cyclotron resonance
Electrons
Antennas
plasma
antennas
electron cyclotron resonance
electrons
Ion engines
Space probes
probe
samarium
Samarium
ion engines
space probes

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering
  • Space and Planetary Science

Cite this

Analysis of electron and microwave behavior in microwave discharge neutralizer. / Masui, Hirokazu; Tashiro, Yousuke; Yamamoto, Naoji; Nakashima, Hideki; Funaki, Ikkoh.

In: Transactions of the Japan Society for Aeronautical and Space Sciences, Vol. 49, No. 164, 28.12.2006, p. 87-93.

Research output: Contribution to journalArticle

Masui, Hirokazu ; Tashiro, Yousuke ; Yamamoto, Naoji ; Nakashima, Hideki ; Funaki, Ikkoh. / Analysis of electron and microwave behavior in microwave discharge neutralizer. In: Transactions of the Japan Society for Aeronautical and Space Sciences. 2006 ; Vol. 49, No. 164. pp. 87-93.
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