Radiant energy – Automatic/serial detection of similar sources
Patent
1977-04-05
1978-10-10
Smith, Alfred E.
Radiant energy
Automatic/serial detection of similar sources
250237R, 250363R, G01T 100, H01J 314, G01T 120
Patent
active
041198506
ABSTRACT:
Apparatus for determining the respective radioactive particle sample count being emitted from a plurality of radioactive particle containing samples, including modulation means for modulating the information on the radioactive particles being emitted from the samples, coded detecting means for sequentially detecting different respective coded combinations of the radioactive particles emitted from more than one but less than all of the samples, and processing the modulated information to derive the sample count for each sample. One embodiment includes a single light emitting crystal adjacent a plurality of samples, an encoder belt sequentially movable between the crystal and the samples, the encoder belt having a coded array of apertures to provide corresponding modulated light pulses from the crystal, and a photomultiplier tube to convert the modulated light pulses to corresponding decodable electrical signals for deriving the respective sample count.
REFERENCES:
patent: 3569711 (1971-03-01), Stoms et al.
patent: 3578980 (1971-05-01), Decker et al.
patent: 3720469 (1973-03-01), Harwit
patent: 4005292 (1977-01-01), Oesterlin et al.
Kelso David Matthews
Reddy Reddy Reddy Venketeshwara
Abbott Laboratories
Howell Janice A.
Smith Alfred E.
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