Large ion yields in hydrogen scattering from a graphite surface
作者:
K. Tsumori,
W. R. Koppers,
R. M. A. Heeren,
M. F. Kadodwala,
J. H. M. Beijersbergen,
A. W. Kleyn,
期刊:
Journal of Applied Physics
(AIP Available online 1997)
卷期:
Volume 81,
issue 9
页码: 6390-6396
ISSN:0021-8979
年代: 1997
DOI:10.1063/1.364419
出版商: AIP
数据来源: AIP
摘要:
In this article we report on surface scattering experiments at graphite as to model the interactions at divertor surfaces in tokamaks and conversion electrodes in negative ion sources. The formation of negative and positive hydrogen ions on a graphite surface during positive hydrogenous ion scattering at a projectile energy of 400 eV is observed. A remarkably highH−andH+ion fraction, both varying between 10&percent; and 30&percent; of all scattered particles, is found during scattering of positive hydrogenous ions. ©1997 American Institute of Physics.
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