Abstract
AbstractWe attempted to determine the relative stabilities of latent image and sub-image centres in a sulphur- plus-gold-sensitized silver bromide emulsion by the Reinders technique in which exposed films are bathed in solutions containing both ferrous and ferric ions. The latent image centres were detected by development without latensification, whereas sub- image centres were detected by either gold or light latensification prior to development. Because oxidation of latent image centres by the ferric/ferrous solution creates sub-image centres simultaneously with the destruction of some sub-image centres, a new accounting of the net change in fraction of grains containing only sub-image centres is postulated. Within the experimental uncertainties of our results, we cannot conclude that sub-image centres are more stable than latent image centres.
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