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Enhancement of the H[-] Output in the Magnetic Multicusp Ion Source

Memoirs of the Faculty of Engineering, Yamaguchi University Volume 38 Issue 1 Page 101-109
published_at 1987
KJ00000156665.pdf
[fulltext] 673 KB
Title
磁気多極型水素負イオン源の高効率化
Enhancement of the H[-] Output in the Magnetic Multicusp Ion Source
Creators Shiratake Shigeru
Creators Fukumasa Osamu
Creators Saeki Setsuo
Source Identifiers
On optimization of the volume production type H^- ion source, the effect of wall material and wall temperature on H^- production, and the effect of plasma space potential V_s on H^- extraction in the multicusp ion source are investigated experimentally. When three different wall materials (i. e. Al, Mo and Stainless Steel) are used, Al generally produces the highest H^- current under the same discharge conditions. We think that the difference in H^- yield is due to different interactions of vibrationally excited hydrogen molecules with three wall materials. The wall temperature has no appreciable effect on the extracted H^- current. It is also found that decreasing V_s (>0) leads to an increase in the extracted H^- current.
Subjects
電気電子工学 ( Other)
Languages jpn
Resource Type departmental bulletin paper
Publishers 山口大学工学部
Date Issued 1987
File Version Version of Record
Access Rights open access
Relations
[ISSN]0372-7661
[NCID]AN00244228
Schools 工学部