Radiant energy – Invisible radiant energy responsive electric signalling – With or including a luminophor
Patent
1972-03-23
1976-09-07
Dixon, Harold A.
Radiant energy
Invisible radiant energy responsive electric signalling
With or including a luminophor
250363S, 250445T, G01t 116
Patent
active
039795942
ABSTRACT:
This invention provides a radiation detecting apparatus for imaging the distribution of radioactive substances in a three-dimensional subject such as a medical patient. Radiating substances introduced into the subject are viewed by a radiation image detector that provides an image of the distribution of radiating sources within its field of view. By viewing the area of interest from two or more positions, as by scanning the detector over the area, the radiating sources seen by the detector have relative positions that are a function of their depth in the subject. The images seen by the detector are transformed into first output signals which are combined in a readout device with second output signals that indicate the position of the detector relative to the subject. The readout device adjusts the signals and provides multiple radiation distribution readouts of the subject, each readout comprising a sharply resolved picture that shows the distribution and intensity of radiating sources lying in a selected plane in the subject, while sources lying on other planes are blurred in that particular readout.
REFERENCES:
patent: 3011057 (1961-08-01), Anger
patent: 3209201 (1965-09-01), Anger
patent: 3320418 (1967-05-01), Steel
patent: 3418471 (1968-12-01), Gydesen
patent: 3499146 (1970-03-01), Richards
patent: 3502873 (1970-03-01), Woronowicz
patent: 3509341 (1970-04-01), Hindel et al.
patent: 3573458 (1971-04-01), Anger
patent: 3612865 (1971-10-01), Walker
"Tomographic Gamma-Ray Scanner-" by Anger, UCRL 16899, May 31, 1966.
Image Separation Radioisotope Scanning by Kuhl et al., Radiology, vol. 80, No. 4, pp. 653-662, Apr. 1963.
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