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arXiv · 2003.09731

SiPM proton irradiation for application in cosmic space

S. Mianowski·D. M. Borowicz·K. Brylew·A. Dziedzic·M. Grodzicka-Kobylka·A. Korgul·M. Krakowiak·Z. Mianowska·A. G. Molokanov·M. Moszynski·G. V. Mytsin·D. Rybka·K. Shipulin·T. Szczesniak
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Abstract

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.

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S. Mianowski, D. M. Borowicz, K. Brylew, A. Dziedzic, M. Grodzicka-Kobylka, A. Korgul, M. Krakowiak, Z. Mianowska, A. G. Molokanov, M. Moszynski, G. V. Mytsin, D. Rybka, K. Shipulin, T. Szczesniak. 2020-03-21. SiPM proton irradiation for application in cosmic space. https://doi.org/10.1088/1748-0221%2F15%2F03%2Fp03002

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