Charge and energy transfer in collisions of Cs+ions with a cesiated W(110) surface
作者:
P. W. van Amersfoort,
J. J. C. Geerlings,
L. F. Tz. Kwakman,
E. H. A. Granneman,
J. Los,
期刊:
Journal of Applied Physics
(AIP Available online 1985)
卷期:
Volume 58,
issue 6
页码: 2312-2316
ISSN:0021-8979
年代: 1985
DOI:10.1063/1.335952
出版商: AIP
数据来源: AIP
摘要:
A beam of Cs+ions with an energy of 500, 1000, or 2000 eV is scattered from a cesiated W(110) target. The angle of incidence is 45° or 75° with respect to the surface normal. The charge state and energy of the scattered particles are measured. The influence of hydrogen coadsorption on the final charge state is investigated. All scattered cesium particles are neutrals when the surface work function is smaller than 2.6 eV. The scattered particles have suffered a pronounced energy loss. From the measurements an extrapolation is made to conditions relevant for surface conversion negative ion sources.
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