铱盐掺杂对卤化银乳剂照相性能的影响

Influence of Iridium Salt Doping on the Photographic Characteristics of Silver Halides Photographic Emulsion

本文阐述了一项用铱盐对溴碘化银T颗粒乳剂的增感实验研究,实验结果说明,在卤化银颗粒内部形成的铱增感感光中心,捕获光电子后在颗粒内部形成潜影,因而会降低感光度,而颗粒表面形成的铱增感感光中心能形成表面潜影。

This paper reports a study of the influence of iridium salts doping on the photographic characteristics of silver iodo-bromide tabular emulsion. Experimental test results showed that iridium sensitized sensitivity centers formed inside AgX grains can form inner latent image after trapping photoelectrons,thus decrease the sensitivity.On the contrary,iridium sensitized sensitivity centers formed on the surface of AgX grains will form surface latent image,performing development centers,consequently will increase the sensitivity.