直接正性卤化银成像体系的电子和离子过程

Properties of electrons and ions in direct positive silver halide imaging system

阐明了表面预灰化的直接正性过程的机理，讨论了具有物理晶格缺陷和化学结构缺陷的内敏乳剂的制备和直接正性乳剂中电子陷阱和空穴陷阱的性质，并提出了改善直接正性乳剂照相性能的原则。

The mechanism of the image formation processes in direct positive emulsions with prefogged grains is clarified. The preparation of internal image emulsions with the introduction of controlled levels of physical lattice imperfection and internal chemical structural imperfection and properties of the electron and the positive hole traps in direct pssitive silver handes is discussed.The principles of improving photographic properties of direct positive materials are presented.