Photoionizer

Details Photoionizer Photoionizer

H - Electricity

01

J

358/21

H01J 49/04 (2006.01) H01J 47/02 (2006.01) H01J 49/10 (2006.01) H01J 49/14 (2006.01)

Patent

CA 1177976

ABSTRACT OF THE DISCLOSURE There is provided a photoionizer which includes a light source comprising a hollow torus, an ultraviolet transmitting window substantially surrounding a passage through the torus, a gas filling within the torus, and apparatus for creating an electrical discharge within the torus. The photoionizer further includes an electrode within the passage through said torus for collecting, or extracting, the ions produced by the light source strikng a gas within the passage. A preselected gas sample can be passed through the passage containing the electrode, and apparatus connected to the electrode can measure the ions collected by the electrode resulting from the interaction between the light source and the gas sample or extracting apparatus able to project a beam of ions from the ionization region or from an ion image outside the ionization region.

396793

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