A Novel TOF-PET Detector Based on SiPM and Cherenkov Radiation

被引：0

作者：

Liu, Xiao ^{[1
]}

Xu, Tianpeng ^{[1
]}

Xia, Yan ^{[2
]}

Ma, Tianyu ^{[1
]}

Liu, Yaqiang ^{[1
]}

机构：

[1] Tsinghua Univ, Dept Engn Phys, Minist Educ, Key Lab Particle & Radiat Imaging, Beijing, Peoples R China

[2] Inst Spacecraft Environm Engn, Sci & Technol Reliabil & Environm Engn Lab, Beijing 100084, Peoples R China

来源：

2017 IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE (NSS/MIC) | 2017年

基金：

中国博士后科学基金; 国家重点研发计划; 中国国家自然科学基金;

关键词：

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Time of flight (TOF) technology has been widely applied in modern positron emission tomography (PET) systems. In TOF-PET detector development, the decay time of scintillation crystal is one of the major limit to the timing resolution. Nowadays, low-luminosity photon detection even at single photon level has come into use, which allows the detection of low-output Cherenkov photons to he possible. These Cherenkov photons is created by the moving electrons, which is produced by the photoelectric effect or Compton scatter of the 511 keV gamma photons. Since Cherenkov photon can be detected earlier and provides nearly prompt response to gamma photons, Cherenkov TOF-PET detector has become a promising TOF-PET choice. In this study, we evaluate the feasibility of a Cherenkov TOF-PET detector setup based on PbF2 crystal and SensL dual-output SiPM. We also investigate the factors which could influence the coincidence resolving time (CRT), including ambient temperature, SiPM over voltage, crystal size and crystal surface treatment.

引用

页数：3