Radiant energy – Ion generation – Field ionization type
Patent
1978-05-19
1979-08-28
Anderson, Bruce C.
Radiant energy
Ion generation
Field ionization type
250283, B01D 5944, H01J 3934
Patent
active
041662199
ABSTRACT:
Atoms of hydrogen or deuterium are fully ionized by a three-photon process which is enhanced by the two-photon 1S.fwdarw.2S resonant transition. The resultant ions are detected with high efficiency to provide discrimination between small concentrations of atomic hydrogen and atomic deuterium in a vacuum or in the presence of a background gas. The use of two unequal photo energies to pump the two-photon resonance provides the capability of mapping the individual three dimensional distribution of the hydrogen or deuterium. The detection process is also appropriate to determining these data in dishcarge plasmas and flames.
REFERENCES:
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Ausschnitt Christopher P.
Bjorklund Gary C.
Freeman Richard R.
Storz Ralph H.
Anderson Bruce C.
Bell Telephone Laboratories Incorporated
Dubosky Daniel D.
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