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Fukumasa Osamu

Affiliate Master Yamaguchi University

Negative ion volume production in electron cyclotron resonance hydrogen plasmas

Japanese journal of applied physics. Pt. 1, Regular papers & short notes Volume 38 Issue 7B Page 4581-4585
published_at 1999-07
2008010014.pdf
[fulltext] 788 KB
Title
Negative ion volume production in electron cyclotron resonance hydrogen plasmas
Creators Fukumasa Osamu
Creators Matsumori Masanori
Creator Keywords
negative ion source NBI heating ECR plasma H^- production magnetic filter
Production and control of electron cyclotron resonance (ECR) plasmas for negative ion sources have been studied. A new production method using permanent magnets is proposed as one possibility for generating a large-diameter high-density uniform microwave plasma. The microwave power is launched by an annular slot antenna into the circumference of a chamber with a ring-cusp or a line-cusp permanent magnet, where a magnetic field can be applied in a local region and plasmas can be efficiently generated if the ECR condition is satisfied. In this paper, we report the structure of the ECR negative ion source, the characteristics of the ECR plasmas, and the comparison of the ECR plasmas with DC discharge plasmas from the viewpoint of a negative ion source.
Languages eng
Resource Type journal article
Publishers 応用物理学会
Date Issued 1999-07
File Version Author’s Original
Access Rights open access
Relations
[ISSN]0021-4922
[NCID]AA10457675
https://doi.org/10.1143/JJAP.38.4581
[isPartOf] [URI]http://www.ipap.jp/jjap/index.htm
Schools 大学院理工学研究科(工学)