Scintillation detector arrangement

Details Scintillation detector arrangement Scintillation detector arrangement

G - Physics

01

T

358/19

G01T 1/202 (2006.01) G01T 1/208 (2006.01)

Patent

CA 1059655

ABSTRACT OF THE DISCLOSURE In a scintillation detector arrangement, it is known to have a scintillation crystal which, when impinged by high- energy radiation, produces luminescent radiation having a phos- phorescent minor component and a fluorescent major component, such radiation being received by a photoelectric transducer which produces an output signal in response to a summation of the components, whereby the phosphorescent minor component interferes with the detection and resolution of the fluorescent major component. This invention, in recognition of an adverse effect the interference has on obtaining sharp tomographic images when the detector arrangement is used for absorption detection in connection with tomographic scanning of a body with high-energy radiation, provides a compensating network having a series-parallel combination of capacitance and resistance ele- ments operative to alter the output signal of the transducer to reduce the effect of the phosphorescent minor component to an inconsequential minimum.

272667

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