On the Reaction Kinetics of Latent-Image Formation

Abstract

A series of simplified and mathematically tractable reaction models are set up and their theoretical characteristics are discussed and related to observable photographic data. The movement of silver ions is taken as a basis, which determines the reaction process. All models discussed yield reactions which appear possible in practice. The sensitivity-determining factors are illustrated. From the dependence of maximum density and gradation on intensity one concludes that reverse processes are involved. Reciprocity behaviour and its dependence on temperature gives information on the nature of the reaction.