碲锌镉探测器温度响应实验研究及分析  

Research and Analysis of Temperature Response of CZT Detectors

作　　者：王凯[1] 王莹[1] 曲延涛[1] 

机构地区：[1]中国原子能科学研究院,北京102413

出　　处：《辐射防护》2013年第6期340-342,377,共4页Radiation Protection

摘　　要：利用^241放射源对碲锌镉探测器在不同温度下的能量分辨率和全能峰计数率进行了实验测量。实验结果显示，温度对平面型碲锌镉探测器的能量分辨率（FWHM）有明显的影响，-20～0oC，碲锌镉探测器的FWHM保持在6％左右，在0～20℃，其FWHM从6．62％升高至8．44％，而当温度高于20℃以后，其FWHM高于9％，从实验中的最高温度来看，温度为50℃时，其FWHM变差至15．74％；温度对于测量^241Am全能峰计数有大约20％的影响。^241Am sources was used to research the energy resolution and detection efficiency of CZT detectors at different temperatures. Results show a significant influence of temperature on the FWHM of planar CZT detectors： the FWHM was about 6% at - 20 ℃ to 0 ℃ ; and raised from 6.62% up to 8.44% at 0 ℃ to 20 ℃ ; and was over 9% when the temperature exceeded 20 ℃. According to the experiment, the FWHM deteriorated to 15.74% at the maximum temperature of 50 ℃. Conclusions are made that the temperature has a 20% effect over the full-energy peak counting of ^241Am.

关 键 词：CZT 温度 

分 类 号：TL814[核科学技术—核技术及应用]