Ion detector and associated removable ionizer inlet assembly

Details Ion detector and associated removable ionizer inlet assembly Ion detector and associated removable ionizer inlet assembly

1988-10-07

1989-11-21

Berman, Jack I.

Radiant energy

Ionic separation or analysis

With sample supply means

7386481, H01J 4904

Patent

active

048824852

ABSTRACT:
An improved ion detector having a removable ionizer inlet assembly, a high vacuum chamber, an analyzer and a removable detector are provided. Valves are employed to permit replacement of the ionizer inlet assembly or the detector without meaningful loss of vacuum. The ionizer inlet assembly has a gap which is adjustable in order to permit more precise control of the molecules which are delivered to the ionizer. Adjustment is provided to control ions which are discharged from the ionizer assembly prior to delivery to the analyzer. Internal heating is provided for the ionizer inlet assembly zones. The ionizer preferably has generally longitudinally oriented slots to facilitate more efficient electron bombardment of the molecules.

REFERENCES:
patent: 2882410 (1959-04-01), Brobeck
patent: 3073951 (1963-01-01), Burdg
patent: 3590243 (1971-06-01), Perrin et al.
patent: 4298795 (1981-11-01), Takeuchi et al.
patent: 4454894 (1984-06-01), Tallon

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