Radiant energy – Invisible radiant energy responsive electric signalling – With or including a luminophor
Patent
1975-05-12
1977-01-25
Dixon, Harold A.
Radiant energy
Invisible radiant energy responsive electric signalling
With or including a luminophor
250328, 250366, 250367, G01T 100, G01T 120
Patent
active
040052923
ABSTRACT:
A method and apparatus for concurrently counting a plurality of radioactive samples. The position sensitive circuitry of a scintillation camera is employed to sort electrical pulses resulting from scintillations according to the geometrical locations of scintillations causing those pulses. A scintillation means, in the form of a scintillating crystal material or a liquid scintillator, is positioned proximate to an array of radioactive samples. Improvement in the accuracy of pulse classification may be obtained by employing collimating means. If a plurality of scintillation crystals are employed to measure the iodine-125 content of samples, a method and means are provided for correcting for variations in crystal light transmission properties, sample volume, and sample container radiation absorption.
REFERENCES:
patent: 3270202 (1966-08-01), Long et al.
patent: 3509339 (1970-04-01), Doehner
patent: 3723735 (1973-03-01), Spelha et al.
patent: 3723736 (1973-03-01), Laney
patent: 3732419 (1973-05-01), Kulberg et al.
patent: 3796879 (1974-03-01), Obrycki
Obrycki Raymond F.
Oesterlin Donald L.
Dixon Harold A.
G. D. Searle & Co.
Kraft Dennis O.
Ramm Walter C.
Sgarbossa Peter J.
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