Gamma-ray spectroscopy with MAPD array in the readout of LaBr3:Ce scintillator


Ahmadov G. Ahmadov F. Holik M. Berikov D. Sadygov Z. Akbarov R. Nuruyev S. Sadigov A. Mammadli A. Mammadov R. Kopatch Y. Pridal P. Yilmaz E. Doganci E. Zich J.
July 2021IOP Publishing Ltd

Journal of Instrumentation
2021#16Issue 7

This paper presented a new detector module consisting of a micropixel avalanche photodiode (MAPD-3NM), LaBr3:Ce scintillator, and a compact read-out interface system for detecting gamma-rays in a wide energy range. The MAPD array (4 × 4 channels) was assembled using a single MAPD-3NM characterized by its high photon detection efficiency (∼25%), pixel density (10 000 pixels/mm2), low operation voltage (74.5 V), and low dark current. An active area of a single MAPD-3NM was 3.7 × 3.7 mm2, while this value was 17 × 17 mm2 for the assembled array with pixel density of 2190 000. The size of the tested LaBr3:Ce scintillator was 15 × 15 × 15 mm3. According to the characteristics of the detector module, a compact read-out interface device (SPECTRIG MAPD) was developed. SPECTRIG MAPD was designed as a miniature device with low power consumption, which continues to provide a wide spectrum of functions needed for measurement and test silicon photomultipliers (SiPM) and scintillation detectors on their basis. The various experiments were implemented to test the detection performance of a detector module to gamma radiation in the range from 30 keV to 4400 keV.

Data acquisition circuits , Detector control systems (detector and experiment monitoring and slow-control systems, architecture, hardware, algorithms, databases) , Photon detectors for UV, visible and IR photons (solid-state) (PIN diodes, APDs, Si-PMTs, G-APDs, CCDs, EBCCDs, EMCCDs, CMOS imagers, etc) , Scintillators, scintillation and light emission processes (solid, gas and liquid scintillators)

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Joint Institute for Nuclear Research, Joliot-Curie 6, Dubna, 141980, Russian Federation
Institute of Radiation Problems-ANAS, 9, B.Vahabzade Str., Baku, AZ1143, Azerbaijan
National Nuclear Research Center, Inshaatchilar 4, Baku, AZ1073, Azerbaijan
Faculty of Electrical Engineering, Uwb in Pilsen, Univerzitní 2795/26, Pilsen, 306 14, Czech Republic
Institute of Experimental and Applied Physics, Ctu in Prague, Husova 240/5, Prague, 110 00, Czech Republic
The Institute of Nuclear Physics, 1 Ibragimova, Almaty, 050032, Kazakhstan
Nuclear Radiation Detectors Application and Research Center, Bolu Abant Izzet Baysal University, Bolu, 14030, Turkey
Department of Physics, Bolu Abant Izzet Baysal University, Bolu, 14030, Turkey

Joint Institute for Nuclear Research
Institute of Radiation Problems-ANAS
National Nuclear Research Center
Faculty of Electrical Engineering
Institute of Experimental and Applied Physics
The Institute of Nuclear Physics
Nuclear Radiation Detectors Application and Research Center
Department of Physics

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