Temperature dependence of CsI:Tl coupled to a PIN photodiode and a silicon photomultiplier
Temperature dependence of CsI:Tl coupled to a PIN photodiode and a silicon photomultiplier作者机构:Institute of Modern PhysicsChinese Academy of Sciences Lanzhou University University of Chinese Academy of Sciences
出 版 物:《Nuclear Science and Techniques》 (核技术(英文))
年 卷 期:2019年第30卷第2期
页 面:81-89页
核心收录:
学科分类:08[工学] 0827[工学-核科学与技术]
基 金:supported by the National Natural Science Foundation of China(Nos.11575257,11575269,and U1732134) the Youth Innovation Promotion Association of the Chinese Academy of Science(No.2015342)
主 题:CsI:Tl SiPM PD Temperature dependence Correction method
摘 要:With the aim of simulating the harsh temperature condition of space, a thallium-activated cesium iodide crystal(CsI:Tl) detector readout with a PIN photodiode(CsI:Tl(PD)) and with a silicon photomultiplier(CsI:Tl(SiPM)) is investigated over a temperature range from-40 to 40 ℃. With the increase in temperature, the output signal increases by ~ 24% with CsI:Tl(PD) and decreases by ~69% with CsI:Tl(SiPM). To reduce the effect of temperature in outer space, a method of bias voltage compensation is adopted for CsI:Tl(SiPM). Our study demonstrates that after correcting the temperature the variation in the analog-to-digital converter s amplitude is 3%.