Radiation detector for limiting effects of shading

Details Radiation detector for limiting effects of shading Radiation detector for limiting effects of shading

1993-03-11

1994-12-13

Fields, Carolyn E.

Radiant energy

Invisible radiant energy responsive electric signalling

With or including a luminophor

250367, G01T 120

Patent

active

053731620

ABSTRACT:
A radiation detector comprises a large number of detector elements each having its detecting surface directed toward a source of radiation and collimator plates each standing in the direction of emission of radiation from the source and placed over a gap between adjacent detector elements. The gap is made greater than the thickness of the collimator plates, reducing the area of the shade of a collimator plate on the radiation detecting surface of the corresponding detector element. Thus, the variations in sensitivity of channels due to variations in the area of the shade of the collimator plates are reduced. The gap permits an adverse effect of the misalignment of the collimator plate on the channel sensitivity to be reduced.

REFERENCES:
patent: 4180737 (1979-12-01), Kingsley
patent: 4429227 (1984-01-01), DiBianca et al.
patent: 4459486 (1984-07-01), Brunner et al.
patent: 4731534 (1988-03-01), Klein et al.

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