卤化银乳剂的热增感效应研究  

THERMAL SENSITIZATION EFFECT OF SILVER HALIDE EMULSION

作　　者：瑞青 郑彤[1] 王荣琴[1] 

机构地区：[1]中国科学院感光化学研究所

出　　处：《感光科学与光化学》1999年第2期150-154,共5页Photographic Science and Photochemistry

摘　　要：温度对卤化银胶片感光度的影响很早就有人进行过研究．在１９３４年，Ｗｅｂｂ［１］研究了不同温度下卤化银乳剂的互易率曲线，并发现温度对感光度的影响与照度有关．当照度很低时，在一定温度范围内感光度会随温度的降低而升高；在高照度下，随温度的升高感光度也增高．...The temperature dependence of sensitivity of a finegrain silver iodobromide emulsion sensitized by different sensitizers was determined in a temperature range between 25 to 100 at an exposure time of one millisecond. In a result, the sensitivity increases with increasing temperature for all the samples except which was sulfursensitized. For a sulfursensitized emulsion, the sensitivitiy first increases as temperature increasing, and then decreases when temperature is over 50. Some factors were discussed as the reason for causing the thermal sensitization effect. In conclution, it is considered that the thermal sensitization effect plays an important part in the infrared presensitization phenomenon that was first observed by G. F. Frazier.

关 键 词：卤化银乳剂 热增感 红外预增感 胶片 

分 类 号：TQ575.2[化学工程—精细化工] TQ571