A study was performed to evaluate the effect of concurrent photon amplification (CPA) on Kodak Tri-X Pan emulsion in regard to image quality. The study evaluated detective quantum efficiency (DQE), modulation transfer function (MTF), and information content (IC) as a function of exposure in a comparison between normal exposure and CPA. The results showed CPA to enhance image quality relative to normal exposure at very low exposure levels. As the exposure was increased, normally exposed images became comparable and then exceeded CPA exposures in image quality. The exposure level at which normal exposure became preferential was distinct with each image quality measure.
Library of Congress Subject Headings
Photographic emulsions; Images, Photographic
Department, Program, or Center
School of Photographic Arts and Sciences (CIAS)
Kern, Konrad E., "A quantitative image evaluation study of a concurrent photon amplification treated emulsion" (1984). Thesis. Rochester Institute of Technology. Accessed from
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