Abstract
The publication Physical Techniques in the Study of Art, Archaeology, and Cultural Heritage , Volume 2, discusses synchrotron radiation and its use in art, archaeometry, and cultural heritage studies. In the publication, Giovanna Di Pietro describes two different types of experiments she has undertaken in the study of the mechanisms underlying the degradation of photographic media: (1) first, she describes the degradation of old black-and-white plates. (2) Second, she outlines her attempts to understand the mechanisms by which the comparatively modern motion picture film degrades. A significant part of this project involved trying to ascertain exactly the dyes that were used by Kodak in their motion picture film from 1980 onwards. The level of secrecy to which this information was protected was great. No information has officially been divulged by the company, although sufficient information has now been acquired to infer the formulations.
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