摘要
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 influence of the Ir (Ⅳ) doping on silver iodo-bromide-chloride emulsions was studied, and the following results were obtained: 1. The relative sensitivity and contrast of the emulsion are decreased when ir(Ⅳ) is added during the emulsification or physical ripening in the preparation of the emulsion, but both are increased whenIt(Ⅳ) is added during the chemical ripening, 2. Photographic properties obtained by iridium-sulphur-gold sensitization are far better than those by sensitization with any one of them alone or combination sensitization with any pair of them. 3. Iridium can improve the stability of the photographic emulsion. 4. Iridium can improw the contrast of the Rh-doped emulsion.
关键词
卤化银乳剂
照相性能
铱
感光乳剂
photographic emulsion
photographic effects
iridium
chemical sensitization
rhodium
