A High Efficiency Ion Source
作者:
A. Theodore Finkelstein,
期刊:
Review of Scientific Instruments
(AIP Available online 1940)
卷期:
Volume 11,
issue 3
页码: 94-97
ISSN:0034-6748
年代: 1940
DOI:10.1063/1.1751660
出版商: AIP
数据来源: AIP
摘要:
An ion source has been built in which the ionization efficiency of the electrons is increased without making the gas pressure excessive. This is accomplished by making the electrons oscillate through the region occupied by the gas with energies corresponding to the maximum ionization probability. The electronic space charge is used to withdraw the ion beam and hold the beam together. Hydrogen ion beams of 150 milliamperes have been obtained.
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