Photographic Effect Of Darkroom Exposure On Radiographs

R. H.C. Bollen

doi:10.1117/12.933814

29 December 1982 Photographic Effect Of Darkroom Exposure On Radiographs

R. H.C. Bollen

Proceedings Volume 0347, Application of Optical Instrumentation in Medicine X; (1982) https://doi.org/10.1117/12.933814
Event: Application of Optical Instrumentation in Medicine X, 1982, New Orleans, United States

Abstract

Fogging of radiographic films can be characterized by a photographically equivalent radiographic exposure dose (Ex-eq). It is shown that within the limits of the experiments Ex-eq is independent of the moment of fogging i.e. before or after the radiographic imaging, and of the radiation intensity levels in the radiographic beam in case of no-screenexposure, but is dependent in case of an exposure with fluorescent screens and fogging by light. A dependent Ex-eq causes apparent sensitometric anomalies. The study warns against darkroom light fogging mainly when unloading cassettes.

Citation Download Citation

R. H.C. Bollen "Photographic Effect Of Darkroom Exposure On Radiographs", Proc. SPIE 0347, Application of Optical Instrumentation in Medicine X, (29 December 1982); https://doi.org/10.1117/12.933814

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