Effect of a desensitization by the shell precipitation on chemically sensitized AgHal core microcrystals

Boris A. Sechkarev; Larisa V. Sotnikova; Timothy A. Larichev; Marina I. Ryabova

doi:10.1117/12.301433

1 January 1998 Effect of a desensitization by the shell precipitation on chemically sensitized AgHal core microcrystals

Boris A. Sechkarev, Larisa V. Sotnikova, Timothy A. Larichev, Marina I. Ryabova

Proceedings Volume 3347, Optical Information Science and Technology (OIST97): Optical Recording Mechanisms and Media; (1998) https://doi.org/10.1117/12.301433
Event: Optical Information Science and Technology, 1997, Moscow, Russian Federation

Abstract

Photographic systems with a separate photographic change carriers capture in depth and on a surface of emulsion microcrystals (`core-shell') have a great importance for photographic technology (direct positive, infra-red films and etc.) and also for scientific investigation. We have precipitated AgBr(I) core microcrystals (with AgI content from 0 up to 6 mol.%), which then were subjected to chemical sensitization of various types (reduction, S, S+Au, Au). A sensitometric study of the covered by shell of various thickness and halide composition initial microcrystals has been carried out. An effect of the loss of internal sensitivity is found. A nature of this effect is proposed and ways of its elimination are offered.

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Boris A. Sechkarev, Larisa V. Sotnikova, Timothy A. Larichev, and Marina I. Ryabova "Effect of a desensitization by the shell precipitation on chemically sensitized AgHal core microcrystals", Proc. SPIE 3347, Optical Information Science and Technology (OIST97): Optical Recording Mechanisms and Media, (1 January 1998); https://doi.org/10.1117/12.301433

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