A survey of radiographic films to establish the best donor/receiver combination for use in the autoradiographic image intensification technique was studied. Underexposed images of a 16 step aluminum wedge and a resolution target were made with Kodak film types XG-1, XL-5, XV-2, NMC or DuPont Cronex film. The underexposed, developed and processed films were treated in a subtractive photographic reducer (mixture of potassium ferricyanide and sodium thiosulfate) prior to radioactivation with an alkaline solution of sulfur-35 thiourea. Autoradiographs of the radioactivated films were made. Both qualitative and quantitative evaluations of the intensified images and their corresponding characteristic D-Log Rel. H curves indicate that Kodak films XG-1 and NMC formed the best donor and receiver combination. Statistical analyses of the quantitative results confirmed the choice of the XG-l/NMC combination as the best donor and receiver respectively. The use of sulfur-35 thiourea with high specific activity for activation of the underexposed image yielded disproportionate activation in the low and high density areas. Use of low specific activity sulfur-35 and potassium ferricyanide during the activation process seemed to indicate that linear activation of the underexposed step wedge can be achieved.
Library of Congress Subject Headings
Radiography; Photography--Films--Testing; Autoradiography
Department, Program, or Center
School of Photographic Arts and Sciences (CIAS)
Ross, John, "A survey Of radiographic films to determine autoradiographic image intensification capabilities" (1980). Thesis. Rochester Institute of Technology. Accessed from
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