Radiant energy – Geological testing or irradiation – With sampling
Patent
1980-04-08
1981-10-13
Smith, Alfred E.
Radiant energy
Geological testing or irradiation
With sampling
250380, G01V 500, G01T 118
Patent
active
042950457
ABSTRACT:
The background counting rate of a plutonium measuring channel which is caused by the partial transition of .alpha.-ray energy spectrum of the daughter nuclides of the radon and the thoron to low energy side has relationship with the counting rate due to the daughter nuclide of the radon and the thoron which have energy exceeding 5.5 MeV. The background counting rate of the plutonium measuring channel is erased digitally by using the above mentioned relationship in a plutonium air monitor.
REFERENCES:
patent: 2957084 (1960-10-01), Marr et al.
patent: 4078178 (1978-03-01), Lowes
Howell Janice A.
Japan Atomic Energy Research Institute
Smith Alfred E.
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