Počet záznamů: 1
Detection of fast neutrons with the pixel detector Timepix3
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SYSNO ASEP 0569022 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Detection of fast neutrons with the pixel detector Timepix3 Tvůrce(i) Granja, C. (CZ)
Uhlář, R. (CZ)
Chuprakov, I. (KZ)
Alexa, P. (CZ)
Sansarbayar, E. (MN)
Gledenov, Y. M. (RU)
Poklop, Dušan (UJF-V) SAI, ORCID
Olšanský, Václav (UJF-V) ORCID
Marek, L. (CZ)
Vuolo, M. (NL)
Pacik, J. (CZ)Celkový počet autorů 11 Číslo článku P01003 Zdroj.dok. Journal of Instrumentation. - : Institute of Physics Publishing - ISSN 1748-0221
Roč. 18, č. 1 (2023)Poč.str. 22 s. Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova Particle identification methods ; Particle tracking detectors (Solid-state detectors) ; Pixelated detectors and associated VLSI electronics ; Neutron detectors (cold,thermal, fast neutrons) Obor OECD Materials engineering Způsob publikování Omezený přístup Institucionální podpora UJF-V - RVO:61389005 UT WOS 000913476000002 EID SCOPUS 85146074634 DOI 10.1088/1748-0221/18/01/P01003 Anotace e examined the response of the pixel detector Timepix3 with silicon sensor to well-defined fast neutron fields. Part of the pixel detector silicon sensor was additionally equipped with a neutron mask of distinct converter regions. The mask consists of separate thermal and fast neutron regions using 6LiF and hydrogen (plastic) converters, respectively. Measurements were performed with mono-energetic fast neutrons produced at D-D and D-T sources from a Van de Graaff accelerator and a neutron generator, respectively. Data were collected with low background including measurements with moderator material to provide a thermalized neutron component. All the signals produced in the detector were analyzed and decomposed in terms of the spectral -tracking response of the pixel detector. The effect of the fast and thermal components of the neutron converter were determined and compared with direct interactions in the silicon sensor which are significant and can be dominant for fast neutrons. We identify and classify the neutron-induced tracks in terms of the broad-type particle-event track classes. A partial overlap is unavoidable with tracks from direct detection of other radiations in particular protons and low-energy light ions as well as X rays. This will limit the neutron-event discrimination in mixed-radiation fields. The detection response according sensor-mask region was examined and calibrated for the investigated neutron fields. The neutron detection efficiency is selectively derived for the detector particle-event classes. This approach enables to enhance the neutron-discrimination and suppress background and unwanted events. This work enables to extend the response matrix of the detector for broad-type radiations to include neutrons both fast and thermal. The results serve to enhance the sensitivity and determine the neutron component in unknown and mixed-radiation fields such as outer space and particle radiotherapy environments. Pracoviště Ústav jaderné fyziky Kontakt Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Rok sběru 2024 Elektronická adresa https://doi.org/10.1088/1748-0221/18/01/P01003
Počet záznamů: 1