不同温度辐照的LiF晶体色心的实验研究  

Experimental study on the color center of LiF crystal irradiated at different temperatures

作　　者：彭郁卿[1] 张怡萍[1] 

机构地区：[1]中国科学院上海原子核研究所

出　　处：《核技术》1991年第10期597-600,共4页Nuclear Techniques

摘　　要：用^(60)Coγ射线辐照LiF单晶,辐照温度分别为25℃与-70℃,剂量范围是(5.1×10~2—1.3×10~6)Gy。在室温条件下测量了吸收光谱与正电子湮没辐射多普勒展宽谱。给出了不同辐照温度条件下的F心浓度与S参数随剂量的变化并对结果进行了讨论。LiF crystals were irradiated with 60Co γ rays at 25℃ and - 70℃ respectively. Dose ranged from 5.1×102 to 1.3×105Gy. Optical absorption spectra and positron annihilation radiation Doppler broadening were measured at room temperature. The changes of F center concentration and S parameter with dose were given and the results were discussed.

关 键 词：温度 Γ辐照 LIF 晶体 色心 单晶 

分 类 号：O773[理学—晶体学]