Perturbed Angular Correlation (PAC) Studies of Defects in Silver Halides

氯化银和溴化银中的多价杂质中心在照相过程中起着重要的作用。这个项目使用了铟-111的微扰角关联测量，铟-111是作为卤化银中的探测核引入的。研究内容涉及铟-空位复合体的结构，缺陷复合体的电子和空穴陷阱，复合体的稳定性，围绕复合体的空位运动的动力学，以及原子核衰变到镉-111后组态的亚稳性。这项研究的主要目的是提高对卤化物中缺陷性质的理解，并将结果与这些或类似的缺陷在照相过程中所起的作用联系起来。这项研究涉及北卡罗来纳大学和位于纽约罗切斯特的伊士曼柯达公司之间的大学与行业合作。

Multivalent impurity centers in silver chloride and silver bromide play an important role in photographic processes. This project uses perturbed angular correlation measurements of indium-111, which is introduced as a probe nucleus in the silver halides. The research addresses the structure of the indium-vacancy complex, electron and hole trapping at the defect complexes, stability of the complexes, the dynamics of vancancy motion around the complexes, and the metastability of the configurations following nuclear decay to cadmium -111. The primary objective of the research is to improve the understanding of defect properties in halides, and to relate the results to the role that these or similar defects play in the photographic process. The research involves a university-industry collaboration between the University of North Carolina and Eastman Kodak Co., Rochester, New York.