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本文研究了Ir(Ⅳ)对氯溴碘化银乳剂照相性能的影响,得出下列结果:1.在制备乳剂的乳化或物理成熟阶段加入Ir(Ⅳ),则乳剂的感光度和反差下降;在化学成熟时加入Ir(Ⅳ),则乳剂的感光度和反差都增加;2.Ir(Ⅳ)+S+Au组合增感,可获得比任何一种单独增感或两者组合增感更好的照相性能;3.Ir(Ⅳ)能显著改善照相乳剂的稳定性;4.Ir(Ⅳ)能提高搀铑乳剂的反差值。
The effects of Ir (Ⅳ) on the photographic properties of silver chlorobromide silver iodide emulsions were studied in this paper. The results are as follows: 1. The sensitivity and contrast of emulsions decreased with the addition of Ir (Ⅳ) at the emulsification or physical maturation stage of emulsions. When Ir (Ⅳ) is added at maturity, the sensitivities and contrasts of the emulsion increase; 2. The combination of Ir (Ⅳ) + S + Au sensitizes more sensitized than either sensitization alone or a combination of the two Photographic properties; 3.Ir (Ⅳ) can significantly improve the stability of the photographic emulsion; 4.Ir (Ⅳ) can increase the contrast with rhodium-doped emulsion.