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
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
[isVersionOf]
[URI]http://www.sciencedirect.com/science/journal/0168583X
Schools
大学院理工学研究科（工学）