Portable mass spectrometer with one or more mechanically adjusta

Details Portable mass spectrometer with one or more mechanically adjusta Portable mass spectrometer with one or more mechanically adjusta

1991-09-10

1992-10-06

Howell, Janice A.

Radiant energy

Ionic separation or analysis

Static field-type ion path-bending selecting means

250396R, 250299, 250283, H01J 4932

Patent

active

051534339

ABSTRACT:
A portable mass spectrometer is described having one or more electrostatic focusing sectors and a magnetic focusing sector, all of which are positioned inside a vacuum chamber, and all of which may be adjusted via adjustment means accessible from outside the vacuum chamber. Mounting of the magnetic sector entirely within the vacuum chamber permits smaller magnets to be used, thus permitting reductions in both weight and bulk.

REFERENCES:
patent: 2947868 (1960-08-01), Herzog
patent: 3641339 (1972-02-01), McCormick
patent: 3671737 (1972-06-01), Hull
patent: 3950641 (1976-04-01), Evans et al.
patent: 4442353 (1984-04-01), Baubron
patent: 4588889 (1986-05-01), Naito
patent: 4641541 (1987-02-01), Sharp
patent: 4859848 (1989-08-01), Bowman et al.
patent: 4888295 (1989-12-01), Zaromb et al.

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