光激励发光的并行模型

分析了目前存在的两种光激励发光理论模型，并基于对光激励发光中电子转移过程的分析，提出了光激励发光的并行模型.通过求解，得出了描述光激励发光过程的一般公式.制备了光激励发光材料BaFCl:Eu²⁺，对其进行了系统的光谱测试.利用实验结果，从衰减规律、两种色心的差异以及X射线辐照剂量与光激励发光强度间的关系等方面对这一模型进行了验证. 关键词：

PARALLEL MODEL FOR PHOTOSTIMULATED LUMINESCENCE

In this paper, we analyse two kinds of theoretical models. Based on the study of electron transfer process in photostimulated luminescence, a new model, parallel model, is proposed. In terms of this model, the general expression of photostimulated luminescence process is gained. A kind of photostimulated luminescence material, BaFCl:Eu²⁺, is fired and a series of spectra are measured. To test this model we compared the theoretical and experimental results in terms of decay process, as well as the difference between two kinds of color centers and the relationship between irradiation dose and luminescent intensity.