| Title: | Study of the neutron radiation hardness of MAPD-3NK2 silicon photomultipliers |
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| Authors: | ID Ambrožič, Klemen, Institut "Jožef Stefan" (Author)
ID Jazbec, Anže, Institut "Jožef Stefan" (Author)
ID Holik, M. (Author)
ID Nuruyev, S. (Author)
ID Ahmadov, F. (Author)
ID Ahmadov, G. (Author)
ID Okhrimenko, O. (Author)
ID Mammadli, A. (Author)
ID Sadygov, A. (Author)
ID Sadygov, Z. (Author) |
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| Files: |  URL - Source URL, visit https://www.nature.com/articles/s41598-025-24759-1
 PDF - Presentation file, download (2,87 MB)
MD5: 077A1C0852F3BCC5A8AEAE168B6B3DE8
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| Language: | English |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: |  IJS - Jožef Stefan Institute
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| Abstract: | The radiation hardness of MAPD-3NK2 photodiodes with deep-buried pixel structures was evaluated under neutron irradiation at fluences ranging from 3.6 × 109to 3.6 × 1012neq/cm². Irradiation induced dark current increase of up to 2060 times, a breakdown voltage shift of (0.37 ± 0.08) V, a photo signal amplitude reduction of (90.1 ± 0.4) %, and a tenfold degradation in amplitude resolution. Partial recovery was observed after 40 days of room-temperature annealing, with dark current decreasing by 35%.Similar performance changes were observed in photodiodes with artificially elevated dark current, indicating that excess current is the primary driver of degradation. This current likely impedes photoelectron detection by occupying pixels or failing to fully quench the avalanche process, thereby reducing photocurrent. |
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| Keywords: | neutron irradiation, radiation hardness, silicon photomultipliers, photodiodes, dark current degradation |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Submitted for review: | 21.05.2025 |
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| Article acceptance date: | 15.10.2025 |
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| Publication date: | 20.11.2025 |
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| Publisher: | Nature Publishing Group |
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| Year of publishing: | 2025 |
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| Number of pages: | str. 1-12 |
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| Numbering: | Vol. 15, article no. 40974 |
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| Source: | Združeno kraljestvo |
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| PID: | 20.500.12556/DiRROS-24398  |
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| UDC: | 53 |
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| ISSN on article: | 2045-2322 |
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| DOI: | 10.1038/s41598-025-24759-1 |
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| COBISS.SI-ID: | 258683651 |
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| Copyright: | © The Author(s) 2025 |
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| Note: | Nasl. z nasl. zaslona;
Soavtorja iz Slovenije: A. Jazbec, K. Ambrožič;
Opis vira z dne 25. 11. 2025;
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| Publication date in DiRROS: | 26.11.2025 |
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| Views: | 142 |
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| Downloads: | 58 |
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| Metadata: |    |
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