Nuclear imaging device with improved linearity

Details Nuclear imaging device with improved linearity Nuclear imaging device with improved linearity

1976-09-14

1979-03-06

Dixon, Harold A.

Radiant energy

Invisible radiant energy responsive electric signalling

With or including a luminophor

250366, G01T 120

Patent

active

041432711

ABSTRACT:
Light coupling means interposed between the photosensitive surfaces of an array of photodetectors and a scintillation crystal has a recess associated with at least one of the photodetectors, the recess being located in the light coupling means within the volumetric projection of the photosensitive surface of said at least one of the photodetectors. The recess is filled with material having an index of refraction different from the index of refraction of the light coupling means such that the index, throughout the recess, is uniform. The provision of the material with a different index in the recess serves to alter the direction of light from a light event in the crystal as the light passes through the light coupling means thereby modifying the relative amount of light received by each of the photodetectors of the array, and thereby improving spatial linearity, uniformity and resolution.

REFERENCES:
patent: RE28571 (1975-10-01), Lange
patent: 3102955 (1963-09-01), Carlson
patent: 3859531 (1975-01-01), Van Dijk

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