1 May 1974 Noise Measurements On Rare-Earth Intensifying Screen Systems
Author Affiliations +
Many popular examples exist for demonstrating how the statistics begin to show (and picture quality deteriorates) when atempts are made to form images with smaller and smaller numbers of photons (Ref. 1, 2). That this state of affairs reigns even in general purpose screen-film radiography has been shown over a dozen years ago by Cleare et al. (Ref. 3) and by Rossmann (Ref. 4, 5). The expression "quantum mottle" was invented to describe the blotchiness or clustering of film grains through which this effect is manifested. Quantum mottle, together with two additional but lower level sources of noise, namely screen structure mottle and film graininess, have been quantitatively analyzed in a series of experiments by Doi (Ref. 6). A few more examples of quantification of such radiographic screen-film noise can be cited (Ref. 7-10), but the samples studied are few and generally unidentified.
© (1974) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Robert F. Wagner, Robert F. Wagner, Kenneth E. Weaver, Kenneth E. Weaver, } "Noise Measurements On Rare-Earth Intensifying Screen Systems", Proc. SPIE 0056, Medical X-Ray Photo-Optical Systems Evaluation, (1 May 1974); doi: 10.1117/12.954290; https://doi.org/10.1117/12.954290


Soft x-ray and EUV efficiencies of CCDs
Proceedings of SPIE (November 18 1993)
Effects of x ray spectrum on the NPS of a...
Proceedings of SPIE (April 24 2000)
CUBIC: filters and the space environment
Proceedings of SPIE (November 18 1993)

Back to Top