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

Nuruyev S. Berikov D. Akbarov R. Ahmadov G. Ahmadov F. Sadigov A. Holik M. Naghiyev J. Madadzada A. Udovichenko K.
May 2024 Korean Nuclear Society

Nuclear Engineering and Technology
2024 #56 Issue 5 1667 - 1671 pp.

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.

Micropixel avalanche photodiode , Neutron/gamma monitor , Plastic scintillator , SiPM

Text of the article Перейти на текст статьи

Joint Institute for Nuclear Researches, Joliot-Curie 6, Dubna, 141980, Russian Federation
Institute of Radiation Problems Under Ministry of Science and Education, B.Vahabzade str. 9, Baku, AZ1143, Azerbaijan
Institute of Nuclear Physics of the National Nuclear Center of Kazakhstan, Ibragimova 1, Almaty, 050032, Kazakhstan
Innovation and Digital Development Agency Nuclear Research Department, Gobu str. 20th km of Baku-Shamakhi Highway, Baku, AZ0100, Azerbaijan
Innovative Electronics and Detectors LLC, Badamdard STQ-1, Baku, AZ1021, Azerbaijan
Faculty of Electrical Engineering, Univerzitni 2795/26, UWB in Pilsen, Pilsen, 306 14, Czech Republic
Institute of Experimental and Applied Physics, CTU in Prague, Husova 240/5, Prague, 110 00, Czech Republic
Khazar University, 41 Mahsati Str., Baku, AZ1096, Azerbaijan

Joint Institute for Nuclear Researches
Institute of Radiation Problems Under Ministry of Science and Education
Institute of Nuclear Physics of the National Nuclear Center of Kazakhstan
Innovation and Digital Development Agency Nuclear Research Department
Innovative Electronics and Detectors LLC
Faculty of Electrical Engineering
Institute of Experimental and Applied Physics
Khazar University

10 лет помогаем публиковать статьи Международный издатель

Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026