摘要
本文描述了电镜观察到的一个现象,我们称它为“显影中心的钝化现象”。与正常的显影中心不同,一些足够大尺寸的显影中心表现出低显影活性,它们不能引发颗粒很快显影。在经过一段较长的显影时间后,这些中心才演变成正常的显影中心,显影中心从钝化到活化所需要的时间越长,显影诱导期就越长。本文研究了显影中心的钝化原因,结果表明银-明胶壳在显影初期起着重要的作用。
A phenomenon which we call 'passivation of development center' was described.Different from normal development center,this kind of development center shows low development activity and is not capable to initiate the reduction of grain immediately.The evolution of development center from 'passive' to 'active' needs a certain interval of time.The longer the duration of this interval the longer the induction period.The causes of the formation of passive development center was discussed and attvibuted to the role of silver-gelatin shell in the early stage of development.
出处
《感光科学与光化学》
CSCD
1990年第2期141-144,共4页
Photographic Science and Photochemistry
