论文标题
SIPM质子辐射用于宇宙空间
SiPM proton irradiation for application in cosmic space
论文作者
论文摘要
本文介绍了通过单能170 MEV质子的硅光载体（SIPM）的质子照射的结果，其通风量高达4.6 $ \ times $ 10 $^{9} $颗粒/cm $ $^2 $。在我们的工作中，来自Hamamatsu的三种类型的硅光电电视机，区域3 $ \ times $ 3毫米$^2 $和不同的子像素尺寸为25 $ \ times $ 25 $ 25 $μ$ m $ m $ m $^2 $，50 $ \ times $ 50 $μ$ m $ m $ m $ m $^2 $^times times times $ \ times $ 75 $ $ m $ m $ m $ m $ m $^2 $^2 $^2 $^2 $^2 $^2 $^2 $^2 $^2 $^2 $^2 $^2 $^2 $^2 $^2 $^2 $^2 $^2 $^2 $^2 $^2 $。介绍了温度在20 $^\ Circs $ C至-65 $^\ Circ $ C的温度范围内的SIPM暗计数率（DCR）频谱的变化。 DCR的影响对非辐射的GAGG的$^{137} $ CS的662 KEV伽马线的能量分辨率的影响进行了研究。估计了质子在宇宙空间中辐照的SIPM检测器的可用性时间。
This paper presents the results of the proton irradiation of silicon photomulipliers (SiPMs) by mono-energetic 170 MeV protons with fluence up to 4.6$\times$10$^{9}$ particles/cm$^2$. In our work, three types of silicon photodetectors from Hamamatsu with areas 3$\times$3 mm$^2$ and different subpixel sizes of 25$\times$25 $μ$m$^2$, 50$\times$50 $μ$m$^2$, and 75$\times$75 $μ$m$^2$ were used. The changes in the SiPM dark count rate (DCR) spectrum before and after irradiation in temperatures in the range of 20 $^\circ$C to -65 $^\circ$C are presented. The influence of the DCR changes on the energy resolution of the 662 keV gamma line from the $^{137}$Cs for a non-irradiated GAGG:Ce (1$\%$) scintillator is investigated. The time period of usability of the SiPM detector irradiated by protons in cosmic space was estimated.
