期刊论文

Effects of light guide thickness on the performance of PET detectors consisting of high-resolution LYSO and SiPM array

Yang, Y.

中文

核技术

0253-3219

2018

41

4

40-46

10.11889/j.0253-3219.2018.hjs.41.040403

国家自然科学基金项目(No.81527804、No.11575285)、广东省自然科学基金项目(No.2014A030312006)、深圳市基础研究项目 (No.JCYJ20160608153434110)资助 第一作者：征云飞，女，1992 年出生，2015 年毕业于东南大学成贤学院，现为硕士研究生，研究领域为 PET 仪器研发 通信作者：杨永峰，E-mail: yf.yang@siat.ac.cn 收稿日期：2017-08-24，修改日期：2017-09-28 Supported by National Natural Science Foundation of China (No.81527804, No.11575285), Natural Science Foundation of Guangdong Province (No.2014A030312006), Basic Research Program of Shenzhen (No.JCYJ20160608153434110) First author: ZHENG Yunfei, female, born in 1992, graduated from Southeast University Chengxian College in 2015, master student, focusing on PET instrumentation Corresponding author: YANG Yongfeng, E-mail: yf.yang@siat.ac.cn Received date: 2017-08-24, revised date: 2017-09-28

本校为第一机构

正电子发射计算机断层显像(Positron Emission Tomography, PET)是一种高灵敏和具有定量测量能力的分子影像方法,PET 探测器通常由高探测效率的晶体阵列和位置灵敏或阵列光探测器组成,PET 探测器的位置分辨率主要由晶体单元的大小和晶体分辨图的质量决定.使用现有小动物 PET 探测器常用的硅酸钇镥(Lutetium-yttrium Oyorthosilicate, LYSO)晶体阵列和硅光电倍增管(Silicon Photomultipliers, SiPM)阵列,系统地研究了晶体阵列和SiPM阵列之间光导的厚度对探测器晶体分辨图和能谱的影响.所使用的晶体阵列为12×12,单个晶体尺寸为0.89 mm×0.89 mm×10 mm,SiPM为日本滨松的4×4阵列,单元大小为3 mm×...

[Background] Positron emission tomography (PET) is a highly sensitive and quantitative molecular imaging modality. PET detector usually consists of a high efficient scintillator array and a position sensitive photodetector or a photodetector array. The spatial resolution of a PET detector is mainly determined by the crystal size of the scintillator array and the quality of the flood histogram of the detector. [Purpose] This paper aims to study the effects of the thickness of the light guide used between the scintillator array and photodetector ...