Fabrication and characterization of rectangular strontium iodide scintillator coupled to TSV-MPPC array
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT(2017)
摘要
Europium-doped strontium iodide (SrI2(Eu)) is a promising material for the scintillation crystals in a Compton imaging system, which requires an excellent energy resolution, as an alternative to NaI(Tl) crystals. Rectangular SrI2(Eu) crystals with dimensions of 10 x 10 x 10 mm(3) are fabricated, aiming for coupling with semiconductor-based photodetectors, especially silicon photomultipliers (SiPMs) in array detectors. The fabricated crystals are evaluated by coupling with a thfough silicon via (TSV)-type multipixel photon counter (MPPC) with dimensions of 12.6 x 12.6 mm(2). The saturation response of the SiPMs is corrected by using Several photopeaks of isotopes with a fitting function. The measured energy resolution is approximately 4.4% at 662 keV compared with an energy resolution of 3.4% with a PMT, and the crystals exhibit the best energy resolution with a shaping time of 6 mu s. All of the five prepared samples exhibit very stable performance and are promising for our future Compton imaging system for environmental radiation monitoring. (C) 2016 Elsevier B.V. All rights reserved.
更多查看译文
关键词
SrI2(Eu),SiPM,MPPC
AI 理解论文
溯源树
样例
![](https://originalfileserver.aminer.cn/sys/aminer/pubs/mrt_preview.jpeg)
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要