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Quantum fluctuations in radiographic screen‐film systems
Author(s) -
Rao Gopala U. V.,
Fatouros Panos P.
Publication year - 1979
Publication title -
medical physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.473
H-Index - 180
eISSN - 2473-4209
pISSN - 0094-2405
DOI - 10.1118/1.594542
Subject(s) - noise (video) , quantum noise , image quality , quality (philosophy) , physics , optics , computed radiography , quantum , radiography , statistical physics , computer science , image (mathematics) , quantum mechanics , computer vision , nuclear physics
With the recent introduction of fast rare‐earth screens into the market, the question of noise and how it influences image quality becomes particularly important. In this paper a compact formula involving familiar and measurable quantities is derived for the specification of the noise arising from the spatial fluctuations of the x‐ray quanta absorbed in the screens. Experimental evidence in support of this concept is also given.