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Radiology, Vol 126, 493-498, Copyright © 1978 by Radiological Society of North America

ARTICLES

Measurements of reciprocity law failure in green-sensitive X-ray films

BA Arnold, H Eisenberg and BE Bjarngard

Reciprocity law failure was measured for four brands of medical x-ray films exposed with intensifying screens. Three of the films are green light-sensitized for use in combination with green light-emitting rare- earth screens. These films showed larger reciprocity failure effects than one conventional blue-sensitive film, Dupont Cronex-2. Development conditions had a small effect on reciprocity failure. As part of the investigation, a detector was constructed with a response that accurately monitors the light emission from the double screen-cassette combination over a wide range of x-ray photon energies.




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Copyright © 1978 by the Radiological Society of North America.