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H and D curves of screen–film systems: factors affecting their dependence on x‐ray energy
Author(s) -
Vyborny Carl J.
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 - 10.1118/1.594549
Subject(s) - x ray , optics , materials science , energy (signal processing) , physics , quantum mechanics
The sensitometric properties of radiographic screen–film systems are investigated with regard to their dependence on x‐ray energy. Sensitometric measurements and a heuristic model for density formation are used to show that variation in the relative amount of light emitted by front and back screens may be the most important factor influencing the change in system H and D curves with x‐ray energy.