Radiant energy – Ionic separation or analysis – With sample supply means
Patent
1974-12-13
1977-08-02
Church, Craig E.
Radiant energy
Ionic separation or analysis
With sample supply means
250292, 250427, H01J 3708
Patent
active
040398285
ABSTRACT:
In a quadrupole mass spectrometer enclosed by a high vacuum container and including an ionization chamber, a molecular beam radiator passing through the container and having an output opening for supplying the gas to be analyzed, and a cryopump arranged for receiving the molecular beam exiting from the output opening and serving as a radiation trap, the output opening of the radiator and the cryopump are disposed at the periphery of the ionization chamber preferably diametrically opposite one another.
REFERENCES:
patent: 3142752 (1964-07-01), Hamer
patent: 3313935 (1967-04-01), Bell
patent: 3418513 (1968-12-01), Elliott
patent: 3553451 (1971-01-01), Uthe
patent: 3770954 (1973-11-01), Davis
"A New Mass Spectrometer for Precision Measurement of the .sup.235 U .sup.238 U Ratio of UF.sub.6, " Brannee, Advances in Mass Spectrometry, vol. 2, Pergamon Press, 1962.
Pokar Jochen
Putter Horst
Church Craig E.
URANIT Uran-Isotopentrennungs-GmbH
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