| 摘要 |
There is disclosed a silver halide photographic emulsion, which comprises silver halide tabular grains that have {100} planes as principal planes and have the following features, the emulsion being subjected to chemical sensitization: (a) 50% or more of the projected areas of the tabular grains is attributed to tabular grains having an aspect ratio of 2 or more, (b) each of the tabular grains has a mixed crystal region containing, in addition to main halide ions, different halide ions in an amount of 0.01 mol % or more, but 25 mol % or less, in the nucleus part and/or in part of the growth part or in the whole of the grown part, and (c) when the principal planes of the tabular grains are observed using a transmission-type electron microscope, one or more, but ten or less, dislocation lines are observed on the principal planes of each grain of 50% or more of the tabular grains. The photographic emulsion, in which dislocation is fixed in grains even after the growth and post-ripening processes, is high in aspect ratio and monodispersibility of grains.
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