Radial distribution of space-charge force in compensated positive-ion beams (invited)
作者:
R. Do¨lling,
J. Pozimski,
P. Gross,
期刊:
Review of Scientific Instruments
(AIP Available online 1998)
卷期:
Volume 69,
issue 2
页码: 1094-1099
ISSN:0034-6748
年代: 1998
DOI:10.1063/1.1148650
出版商: AIP
数据来源: AIP
摘要:
The space-charge compensated state of drifting dc beams ofHe+ions of 10 keV ion energy and 0.14 and 1.5 mA current was determined with an electron beam probe, a rf resonance probe, the analysis of residual gas ion energies, and emittance measurement. The results are compatible with a basic model describing a two-dimensional multiplicity of possible self-consistent radial density distributions of beam ions, residual gas ions, and compensating electrons. The effects of electron drainage and beam current oscillations on space-charge compensation are pointed out. ©1998 American Institute of Physics.
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