Study of the neutron radiation hardness of MAPD-3NK2 silicon photomultipliers

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21670%2F25%3A00387841" target="_blank" >RIV/68407700:21670/25:00387841 - isvavai.cz</a>
Alternative codes found
RIV/49777513:23220/25:43977489
Result on the web
<a href="https://doi.org/10.1038/s41598-025-24759-1" target="_blank" >https://doi.org/10.1038/s41598-025-24759-1</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1038/s41598-025-24759-1" target="_blank" >10.1038/s41598-025-24759-1</a>

Result language
angličtina
Original language name
Study of the neutron radiation hardness of MAPD-3NK2 silicon photomultipliers
Original language description
The radiation hardness of MAPD-3NK2 photodiodes with deep-buried pixel structures was evaluated under neutron irradiation at fluences ranging from 3.6 x 109to 3.6 x 1012neq/cm(2). 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.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10304 - Nuclear physics

Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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