SiPM proton irradiation for application in cosmic space

This paper presents the results of the proton irradiation of silicon photomulipliers (SiPMs) by mono-energetic 170 MeV protons with fluence up to 4.6×109 particles/cm2. In our work, three types of silicon photodetectors from Hamamatsu with areas 3×3 mm2 and different subpixel sizes of 25×25 μm2, 50×...

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Bibliographic Details
Published in:Journal of instrumentation 2020-03, Vol.15 (3), p.P03002-P03002
Main Authors: Mianowski, S., Borowicz, D.M., Brylew, K., Dziedzic, A., Grodzicka-Kobylka, M., Korgul, A., Krakowiak, M., Mianowska, Z., Molokanov, A.G., Moszynski, M., Mytsin, G.V., Rybka, D., Shipulin, K., Szczesniak, T.
Format: Article
Language:English
Subjects:
Cesium 137
Cesium isotopes
Energy resolution
Fluence
Proton irradiation
Scintillation counters
Silicon
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Summary:This paper presents the results of the proton irradiation of silicon photomulipliers (SiPMs) by mono-energetic 170 MeV protons with fluence up to 4.6×109 particles/cm2. In our work, three types of silicon photodetectors from Hamamatsu with areas 3×3 mm2 and different subpixel sizes of 25×25 μm2, 50×50 μm2, and 75×75 μm2 were used. The changes in the SiPM dark count rate (DCR) spectrum before and after irradiation in temperatures in the range of 20ˆC to −65ˆC are presented. The influence of the DCR changes on the energy resolution of the 662 keV gamma line from the 137Cs 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.
ISSN:1748-0221
1748-0221
DOI:10.1088/1748-0221/15/03/P03002