内敏乳剂Sabattier效应的研究

研究了具有不同内敏程度的核壳乳剂的Ｓａｂａｔｔｉｅｒ效应。发现随内敏程度增加，乳剂内部感光度增加，而表面感光度降低。Ｓａｂａｔｔｉｅｒ效应的反转特性取决于内部感光度和表面感光度的相对大小。当两者相当时，显示出部分反转的特性。当内部感光度大于表面感光度时，则显示出完全反转的特性。而当内部感光度比表面感光庆大得多时，则几乎不能观察到Ｓａｂａｔｔｉｅｒ效应。第二次曝光持续时间对Ｓａｂａｔｔｉｅｒ效应有明显影响，随曝光时间的增加而逐渐呈现完全反转的特性。

A Study of Sabattier Effect of Internany Sensitized Emulsions

Core-shell emulsions with varying degree of internal sensitization by sulfur plusgold were used to study Sabattier effect.It is indicated that with increase of internal sensitizationthe internal sensitivity increases while the surface sensitivitv decreases.An emulsion, whose in-ternal sensitivity is almost equal to the surface sensitivity,shows Sabatt ier effect with partially re-versal image,and an emulsion,whose internal sensitivity is larger than the surface sensJtivity,shows Sabattier effect with completely reversal image. When the internal sensitivity is large e-nough, the density of the surface image is too low to show Sabattier effect.