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Fukumasa Osamu

Affiliate Master Yamaguchi University

Enhancement of h^- production in a multicusp source by proper selection of wall material

Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms Volume 37/38 Page 176-179
published_at 1989
Title
Enhancement of h^- production in a multicusp source by proper selection of wall material
Creators Fukumasa Osamu
Creators Saeki Setsuo
Creators Shiratake Shigeru
The effect of the wall material on hydrogen ion species productions in a low-pressure plasma, especially H^- ions, is studied experimentally by using a multicusp ion source. Under the same discharge conditions, Al generally produces the highest H^- ion current although the difference in H^- yield between Al, Cu and stainless-steel liners depends on the source pressure of hydrogen gas. At the same time, there is little difference in the plasma parameters for the three different metal liners. The present results suggest that neutral particles (i.e. atomic hydrogen (H) and vibrationally excited molecules (H^*_2))-wall interaction affects those differences in H^- production.
Languages eng
Resource Type journal article
Publishers Elsevier
Date Issued 1989
File Version Not Applicable (or Unknown)
Access Rights metadata only access
Relations
[NCID]AA10529980
https://doi.org/10.1016/0168-583X(89)90163-8
[isVersionOf] [URI]http://www.sciencedirect.com/science/journal/0168583X
Schools 大学院理工学研究科(工学)