LaCl_3:Ce^(3+)闪烁体正电子湮没寿命谱仪  

Positron annihilation life spectrometer with LaCl_3:Ce^(3+) scintillator crystal

作　　者：高鑫[1] 白雪宁[1] 陈宜保[1] 何元金[1] 

机构地区：[1]清华大学物理系,北京100084

出　　处：《核电子学与探测技术》2007年第2期243-245,249,共4页Nuclear Electronics & Detection Technology

基　　金：国家自然科学基金(10376017)资助

摘　　要：对国内最新研制出的LaCl3:Ce3+闪烁晶体时间特性进行了测试,用该种晶体尝试组建了正电子湮没寿命谱仪,时间分辨率达到了350ps。由于LaCl3:Ce3+探头在具有快速时间响应特性的同时还具有较高的能量分辨率,用该探头组建正电子湮没寿命谱仪将具有许多潜在的优势。The timing properties of LaCl3：Ce^3＋ scintillation crystals, which were developed in China lately , have been tested. A positron annihilation lifetime spectrometer was constructed with these detectors. A time resolution of 350 ps was obtained. Besides the fast time response, the energy resolution of LaCl3 ：Ce^3＋ is also high, so there are many potential advantages of the positron annihilation lifetime spectrometer constructed with this kind of detectors.

关 键 词：LaCl3:Ce^3+闪烁体 正电子湮没寿命谱仪 能量分辨率 时间分辨率 

分 类 号：TL817.2[核科学技术—核技术及应用]