Means for reducing the contamination of mass spectrometer leak d

Details Means for reducing the contamination of mass spectrometer leak d Means for reducing the contamination of mass spectrometer leak d

1994-12-16

1996-04-09

Berman, Jack I.

Radiant energy

Ionic separation or analysis

With sample supply means

73 407, H01J 4910

Patent

active

055064124

ABSTRACT:
In a mass spectrometer leak detector an ion source assembly is disposed in a cavity of a vacuum envelope and is surrounded by a thin removable liner which has means for positioning this liner within the cavity. The liner positioning means limit the thermal contact of the liner with the vacuum envelope and due to heat-radiation relationship of the liner with the ion source the temperature of the ion source region increases and contamination of the ion source decreases.

REFERENCES:
patent: 3155826 (1964-11-01), Peters
patent: 3277295 (1966-04-01), Biggs
patent: 3723729 (1973-03-01), Kruger et al.
patent: 4816685 (1989-03-01), Lange
patent: 5198677 (1993-03-01), Leung et al.
patent: 5262652 (1993-11-01), Bright et al.

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