Filament assembly for mass spectrometer ion sources

Details Filament assembly for mass spectrometer ion sources Filament assembly for mass spectrometer ion sources

1994-05-20

1996-08-06

Anderson, Bruce C.

Radiant energy

Ion generation

Electron bombardment type

H01J 2700

Patent

active

055436250

ABSTRACT:
A filament assembly is disclosed for providing an electron beam to an ion source volume to ionize molecules or particles in the ion source volume. The filament assembly includes an electron lens which accelerates electrons emitted by the filament and focuses the electrons into a beam.

REFERENCES:
patent: 3731095 (1973-05-01), Komoda
patent: 3916202 (1975-10-01), Heiting et al.
patent: 4540884 (1985-09-01), Stafford et al.
patent: 4599869 (1986-07-01), Ozin et al.
patent: 5028791 (1991-07-01), Koshiishi et al.

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