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Numerical Analysis of Proton Ratio in a Hydrogen Ion Source for Neutral Beam Injector

Memoirs of the Faculty of Engineering, Yamaguchi University Volume 34 Issue 1 Page 139-146
published_at 1983
KJ00000156494.pdf
[fulltext] 530 KB
Title
NBI 用水素イオン源のプロトン比
Numerical Analysis of Proton Ratio in a Hydrogen Ion Source for Neutral Beam Injector
Creators Fukumasa Osamu
Creators Saeki Setsuo
Creators Osaki Katashi
Creators Sakiyama Satoshi
Source Identifiers
One requirement for high current ion sources for use in further heating of fusion plasma is the production of ion beams with high proton fractions. In this paper, ion species in a hydrogen plasma are calculated systematically as a function of plasma parameters, i.e. electron density, electron temperature, pressure of hydrogen gas and plasma volume. Furthermore, in the present analysis, the recombination factor for hydrogen atoms at the wall surface of vacuum vessel is treated as another plasma parameter. Results have been obtained for the case of bucket type ion source and compared with published experimental data. The most remarkable point is that ion species ratio depends strongly on the recombination factor, and the proton ratio increases with decreasing the recombination factor.
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 1983
File Version Version of Record
Access Rights open access
Relations
[ISSN]0372-7661
[NCID]AN00244228
Schools 工学部