The Terzina Payload on NUSES: Silicon Photomultipliers Performance and Radiation Damage Mitigation in Low Earth Orbit

Silicon photomultipliers (SiPMs) are increasingly favored for detecting near-UV, visible, and infrared light in space due to their high sensitivity to single photons and compact design. While SiPMs offer several advantages over traditional photomultiplier tubes, their susceptibility to radiation and noise remains an issue. Our study intended to determine the optimal SiPM design for the Terzina Cherenkov satellite in sun-synchronous low Earth orbit (LEO) at an altitude of 550 km. To this end, we characterised several NUV-HD-MT SiPM variants, developed by Fondazione Bruno Kessler, and studied their responses to irradiation by exposing them to a 50 MeV proton beam and to electrons from the $\beta$-emitting source strontium-90. Experimental results were cross-validated with SPENVIS and Geant4 simulations. Based on our findings, we also propose an annealing strategy to mitigate radiation damage and ensure reliable performance in space-based applications.

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Publication Details

Published
2025-09-23
DOI
https://doi.org/10.22323/1.501.0235
Primary Topic
Spacecraft Design and Technology
Type
article
Field-Weighted Citation Impact
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article

The Terzina Payload on NUSES: Silicon Photomultipliers Performance and Radiation Damage Mitigation in Low Earth Orbit

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article

The Terzina Payload on NUSES: Silicon Photomultipliers Performance and Radiation Damage Mitigation in Low Earth Orbit

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article en

Abstract

Silicon photomultipliers (SiPMs) are increasingly favored for detecting near-UV, visible, and infrared light in space due to their high sensitivity to single photons and compact design. While SiPMs offer several advantages over traditional photomultiplier tubes, their susceptibility to radiation and noise remains an issue. Our study intended to determine the optimal SiPM design for the Terzina Cherenkov satellite in sun-synchronous low Earth orbit (LEO) at an altitude of 550 km. To this end, we characterised several NUV-HD-MT SiPM variants, developed by Fondazione Bruno Kessler, and studied their responses to irradiation by exposing them to a 50 MeV proton beam and to electrons from the $\beta$-emitting source strontium-90. Experimental results were cross-validated with SPENVIS and Geant4 simulations. Based on our findings, we also propose an annealing strategy to mitigate radiation damage and ensure reliable performance in space-based applications.

European Commission, Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung, Ministero dello Sviluppo Economico, HORIZON EUROPE Framework Programme
Openalex Percentile: Top 66%
Spacecraft Design and Technology
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