ÚTEFČVUT Ústav technické a experimentální fyziky ČVUT v PrazeInstitute of Experimental and Applied Physics, CTU in Prague

Neutron/gamma scintillation detector for status monitoring of accelerator-driven neutron source IREN

NázevTitle
Neutron/gamma scintillation detector for status monitoring of accelerator-driven neutron source IRENNeutron/gamma scintillation detector for status monitoring of accelerator-driven neutron source IREN
Druh výsledkuResult type
Článek v časopiseJournal article
AutořiAuthors
S. Nuruyev, D. Berikov, R. Akbarov, G. Ahmadov, M. Holík
Klíčová slovaKeywords
SiPM, Micropixel avalanche photodiode, Plastic scintillator, Neutron and gamma monitor
DOIDOI
10.1016/j.net.2023.12.020
Časopis / citaceJournal / citation
Nuclear Engineering and Technology 56(5), 1667-1671 (2024) · ISSN 2234-358X
RokYear
2024
JazykLanguage
eng
ZáznamyRecords
ProjektProject
Institucionální podpora na rozvoj výzkumné org.Institucionální podpora na rozvoj výzkumné org.; Innovative Photodetector Module for advanced Hybrid “Magnetic Resonance Imaging/Positron Emission Tomography” Scanners for Nuclear MedicineInnovative Photodetector Module for advanced Hybrid “Magnetic Resonance Imaging/Positron Emission Tomography” Scanners for Nuclear Medicine
CitovánoCited by
12 (OpenAlex)
2024: 12025: 82026: 3
Citace ke staženíDownload citation
TXT · BibTeX

AbstraktAbstract

This paper presents a neutron/gamma detector based on a micropixel avalanche photodiode and a plastic scintillator that monitors the status of the accelerator-driven intense resonance neutron source (IREN) facility by measuring the neutron/gamma intensity in the target hall. The electronics of the neutron/gamma detector has been designed and developed. The size of the plastic scintillator was selected to be 3.7 × 3.7 × 30 mm3 due to the sensitive area of the MAPD. The experimental results demonstrated a dependence between the count rate of the detector and the frequency of the accelerator. The detector is sensitive to intermediate and fast neutrons. The minimum detectable energy was determined to be 200 keV using Cs-137 point gamma source. The maximum counting rate of the detector from TTL out is about 2.2·106 counts/sec, but for analogue output it is about 2·107 counts/sec. The detector can not allow discriminating neutrons and gamma rays by charge integration method.

This paper presents a neutron/gamma detector based on a micropixel avalanche photodiode and a plastic scintillator that monitors the status of the accelerator-driven intense resonance neutron source (IREN) facility by measuring the neutron/gamma intensity in the target hall. The electronics of the neutron/gamma detector has been designed and developed. The size of the plastic scintillator was selected to be 3.7 × 3.7 × 30 mm3 due to the sensitive area of the MAPD. The experimental results demonstrated a dependence between the count rate of the detector and the frequency of the accelerator. The detector is sensitive to intermediate and fast neutrons. The minimum detectable energy was determined to be 200 keV using Cs-137 point gamma source. The maximum counting rate of the detector from TTL out is about 2.2·106 counts/sec, but for analogue output it is about 2·107 counts/sec. The detector can not allow discriminating neutrons and gamma rays by charge integration method.

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