Chemical ionization ion source

Details Chemical ionization ion source Chemical ionization ion source

1977-09-27

1979-06-26

Anderson, Bruce C.

Radiant energy

Ion generation

Field ionization type

250427, H01J 2700

Patent

active

041594231

ABSTRACT:
A chemical ionization ion source comprising a firt electrode disposed in a discharge region, a counter electrode disposed to confront the first electrode and having at least one space for introducing electrons generated in the discharge region into an ionization region and means for maintaining the counter electrode at a potential higher than that of the first electrode and applying a direct current voltage between the two electrodes, wherein the discharge region and the ionization region are maintained under substantially the same pressures.

REFERENCES:
patent: 3173248 (1965-03-01), Curtis et al.
patent: 3265889 (1966-08-01), Doctoroff
patent: 3639757 (1972-02-01), Caroll et al.
patent: 3849656 (1974-11-01), Wallington

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