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Parametric study of negative ion production in cesium seeded hydrogen plasmas

Review of Scientific Instruments Volume 71 Issue 2 Page 1234-1236
published_at 2000-02
2007010003.pdf
[fulltext] 403 KB
Title
Parametric study of negative ion production in cesium seeded hydrogen plasmas
Creators Fukumasa Osamu
Creators Monji Hideki
Effects of cesium vapor injection on H? production in a tandem volume source are studied numerically as a function of plasma parameters. Model calculation is performed by solving a set of particle balance equations for steady-state hydrogen discharge plasmas. Here, the results with a focus on gas pressure dependence of H? volume production are presented and discussed. Considering H? surface production due to H atoms and positive hydrogen ions, enhancement of H? production and pressure dependence of H? production observed experimentally are qualitatively well reproduced in the model calculation, where stripping loss in the extraction and acceleration regions is taken into account. For pressure dependence of H? production with cesium, I.e., decrease in optimum pressure, H atoms play an important role. For enhancement of H? production, effect of so-called electron cooling is also briefly discussed.
Languages eng
Resource Type journal article
Publishers American Institute of Physics
Date Issued 2000-02
File Version Version of Record
Access Rights open access
Relations
[ISSN]0034-6748
[NCID]AA00817730
info:doi/10.1063/1.1150435
[isVersionOf] [URI]http://rsi.aip.org/rsi/
Schools 大学院理工学研究科(工学)