The effect of microcrystal size on sensitivity is being investigated in a size series of AgBr octahedra. We are focusing on the mechanism and efficiency of latent-image formation, with particular attention to the less than theoretically expected sensitivity at very large microcrystal sizes. In another project, we are exploring the effect of chemical sensitization and the exposure environment on the stability of the latent image for periods up to 72 hr. Computer simulation is a methodology for understanding how the physical properties of the silver halides translates into their photographic properties. Our experimental studies serve to parameterize the simulations.
Current simulations are highly detailed and are run on a parallel processor.
Ultimately we will be able to use this tool for computer-aided design of silver halide microcrystals for specific applications. Mechanism, J. Imag.