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Proceedings Paper

The Effect Of Bias Exposure On The Detective Quantum Efficiency Of Radiographic Screen-Film Systems
Author(s): Richard L. VanMetter; Rodney Shaw
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Paper Abstract

The detective quantum efficiency (DQE) of radiographic screen-film systems is limited at low exposures by the threshold response of silver halide grains. Model calculations predict improvements in DQE at low x-ray exposures with a uniform (light) bias exposure to the film. The DQE gains predicted are compared with those established in the literature for the case where the signal exposure is also a direct light exposure. An optimum bias exposure has been calculated that balances the increase in grain sensitivity against the increase in fog to maximize DQE for the limit of very small exposures.

Paper Details

Date Published: 11 June 1985
PDF: 9 pages
Proc. SPIE 0535, Application of Optical Instrumentation in Medicine XIII, (11 June 1985); doi: 10.1117/12.947250
Show Author Affiliations
Richard L. VanMetter, Eastman Kodak Company (United States)
Rodney Shaw, Eastman Kodak Company (United States)

Published in SPIE Proceedings Vol. 0535:
Application of Optical Instrumentation in Medicine XIII
Samuel J. Dwyer; Roger H. Schneider, Editor(s)

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