论文部分内容阅读
实验测试了中国科学院近代物理研究所制备的9根大尺寸闪烁晶体样品(40 mm×40 mm×300 mm)的光输出及其非均匀性。使用了多种光反射材料和包装方法对样品进行包装,对其光输出及其非均匀性进行测试。对实验数据进行分析,确定了大尺寸晶体的最佳读出端和包装方法。在测试中,所有CsI(Tl)闪烁晶体样品的光输出非均匀性均好于7%,部分样品可达到2%左右。结合本次实验结果,对影响CsI(Tl)晶体光输出非均匀性的因素进行了简要分析。
The light output and non-uniformity of nine large-scintillation crystal samples (40 mm × 40 mm × 300 mm) prepared by the Institute of Modern Physics, Chinese Academy of Sciences were experimentally tested. A variety of light reflective materials and packaging methods were used to package samples for testing their light output and their non-uniformity. The experimental data were analyzed to determine the best read-out of large-size crystals and packaging methods. In the test, all CsI (Tl) scintillation crystal samples had a non-uniform light output of better than 7%, with some samples reaching around 2%. Combined with the experimental results, the factors affecting the nonuniformity of the light output of CsI (Tl) crystal were briefly analyzed.