Radiant energy – Ion generation – Electron bombardment type
Patent
1982-10-18
1984-08-28
Anderson, Bruce C.
Radiant energy
Ion generation
Electron bombardment type
250423R, 3133591, H01J 2700
Patent
active
044685645
ABSTRACT:
The invention relates to an ion source.
This source comprises a gas ionization chamber, an electron source and means for oscillating the electrons in the chamber, so as to produce an ionization zone of the gas. The means for oscillating the electrons comprise two identical electron lenses, whose axes coincide with the oscillation direction, two spherical concave mirrors turned towards one another and positioned respectively on either side of the two lenses and whose centers respectively coincide with the foci of the lenses, the electron source being positioned at the focus of one of the two lenses.
Application to the analysis of gases by mass spectrometry.
REFERENCES:
patent: 2967943 (1961-01-01), Gow
patent: 3293491 (1966-12-01), Hanson
patent: 3611029 (1971-10-01), Stix
patent: 4045677 (1977-08-01), Humphries
patent: 4126806 (1978-11-01), Kapetanakos et al.
patent: 4282436 (1981-08-01), Kapetanakos et al.
Boyer Robert
Journoux Jean-Pierre
Anderson Bruce C.
Commissariat a l''Energie Atomique
Nilles James E.
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