Corona discharge ionization source

Details Corona discharge ionization source Corona discharge ionization source

1996-03-29

1997-11-04

Anderson, Bruce

Radiant energy

Ionic separation or analysis

Ion beam pulsing means with detector synchronizing means

250288, G01D 5544, H01J 4940

Patent

active

056843003

ABSTRACT:
A corona discharge ionization source, for use for example with an ion mobility spectrometer, comprises an adjustable corona point electrode (20) which is held transversely within a cylindrical target electrode (14). A corona discharge is produced by a constant or pulsed potential difference between the two electrodes. In alternative embodiments, there may be a further corona discharge electrode (58), providing additional control, and also an annular counterelectrode (60) surrounding the further point electrode (58).

REFERENCES:
patent: 3699335 (1972-10-01), Giaimo
patent: 4100411 (1978-07-01), Davis
patent: 4390784 (1983-06-01), Browning et al.
patent: 4672505 (1987-06-01), Tsuchiya et al.
patent: 4772794 (1988-09-01), Jenkins
patent: 5070240 (1991-12-01), Lee et al.
patent: 5162652 (1992-11-01), Cohen et al.

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