Scintillation-type X-ray detector and radiology apparatus incorp

Details Scintillation-type X-ray detector and radiology apparatus incorp Scintillation-type X-ray detector and radiology apparatus incorp

1977-11-16

1979-05-08

Willis, Davis L.

Radiant energy

Invisible radiant energy responsive electric signalling

With or including a luminophor

G01T 120

Patent

active

041538382

ABSTRACT:
A radiological apparatus, especially for the examination of objects by tomographic scanning, and equipped with a plurality of X-ray detectors. Each detector includes a scintillator crystal which is coupled to a photomultiplier by a light collector. The light collector is shaped in such way that all or a substantial majority of the light emitted by the scintillator crystal is reflected into the photomultiplier. In particular, the surface of the collector is made reflecting and the various portions of the reflecting surface are configured to reflect light emerging from a corresponding crystal face in a direction which misses the scintillation crystal and which permits entry in the photomultiplier tube. Various embodiments are presented wherein the surface is composed of circular, parabolic and polygonal cylinders.

REFERENCES:
patent: 3866047 (1975-02-01), Hounsfield

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