氟化钡晶体质子辐照的荧光谱研究  

Study on Fluorescence Spectra of BaF2 Crystals Irradiated by Proton

作　　者：杨菁菁[1] 张晋[2] 

机构地区：[1]杭州电子科技大学理学院,浙江杭州310018 [2]云南大学物理系,云南昆明650091

出　　处：《杭州电子科技大学学报（自然科学版）》2006年第1期71-73,共3页Journal of Hangzhou Dianzi University：Natural Sciences

基　　金：国家自然科学基金资助项目(60361001)

摘　　要：通过对掺Sr杂质的BaF2晶体进行辐照实验,研究BaF2晶体质子辐照的荧光谱特性,发现BaF2晶体质子辐照存在荧光增强效应,出现峰值为346nm锐峰。分析认为这与质子辐照引起的离子价态变化相关联,346nm荧光峰发射出自Sr2+离子。The article reports the results of study of fluorescence spectra when proton irradiating BaF2： Sr crystals. It is showed that the fluorescence increasing phenomena of BaF2 crystals irradiated by proton and there is a sharp peak at 346nm to be observed. The results present that a valance state in BaF2 crystals can be changed during proton irradiation process and the 3d6nm peak comes from Sr2 ＋ fluorescence emission.

关 键 词：氟化钡晶体 质子辐照 荧光谱 

分 类 号：O571.33[理学—粒子物理与原子核物理]