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Abstract
Octahedral and tabular silver iodobromide emulsion sets were analyzed by ion scattering spectrometry (ISS). The emulsion sets each contain three levels of iodide (3, 6, and 12 M%), introduced uniformly by a double-run technique. Despite the uniform iodide introduction, the surface iodide level of these emulsions was higher than the bulk level. The iodide depth profile data, obtained by ISS, was found to be dependent on the geometry of the grain and results were explained by a detailed analysis of the sputtered cross-sections.