Isotope analysis

Details Isotope analysis Isotope analysis

1976-08-09

1978-01-10

Smith, Alfred E.

Radiant energy

Ionic separation or analysis

250288, 250514, H01J 3934

Patent

active

040681220

ABSTRACT:
The difference in concentration of a selected isotope in two materials is measured by directing beams of the materials toward the inlet of a mass spectrometer. A shutter is positioned in each beam to pass the two beams at predetermined different frequencies. The output signal from the mass spectrometer is applied to two synchronous detectors, each of which receives a reference signal representative of the frequency at which a respective beam is passed to the mass spectrometer. The output signals from the two detectors are compared.

REFERENCES:
patent: 3419718 (1968-12-01), Hammond et al.
patent: 3801788 (1974-04-01), Milne
patent: 3924123 (1975-12-01), Schmidt

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