Thesis - Open Access
Master of Science (MS)
The purpose of this work is to study the sensitivity of emulsions of various hypophosphite salts to irradiation by photons in the x-ray region of the electromagnetic spectrum. This hypophosphate system bears little resemblance to the more common silver halide currently used in emulsions. Consequently, little is known about the reaction conditions necessary to make fast, sensitive emulsions or how to develop resultant latent images. The projects involves the synthesis and characterization of several compounds which have not been extensively characterized in previous work. Characterization of these salts involved the following techniques: Infrared Absorption Spectroscopy, Electron Paramagnetic Resonance Spectroscopy, and X-ray Diffraction. The main objective of this work, however, is to prepare photographic emulsions of various compositions which, when irradiated with an x-ray beam for different durations, will produce a latent image. The latent images formed during the exposure are then amplified to permanent visible images of nickel metal by developing the emulsions using several techniques.
Library of Congress Subject Headings
Number of Pages
South Dakota State University
Johnson, Randal A., "Hypophosphite Photographic Emulsions" (1976). Electronic Theses and Dissertations. 4953.