Gamma-ray spectroscopy with MAPD array in the readout of LaBr3:Ce scintillator. (15th July 2021)

• Record Type: Journal Article
• Authors: Ahmadov, G.; Ahmadov, F.; Holik, M.; Berikov, D.; Sadygov, Z.; Akbarov, R.; Nuruyev, S.; Sadigov, A.; Mammadli, A.; Mammadov, R.; Kopatch, Yu.; Pridal, P.; Yilmaz, E.; Doganci, E.; Zich, J.
• Is Part Of: Journal of instrumentation. Volume 16:Number 7(2021)
• Publication Date: 2021-07-15
• Subjects: 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) -- Data acquisition circuits -- Detector control systems (detector and experiment monitoring and slow-control systems, architecture, hardware, algorithms, databases); Scientific apparatus and instruments -- Periodicals; 502.84
• DOI: 10.1088/1748-0221/16/07/P07020
• Languages: English
• ISSNs: 1748-0221

Abstract

Abstract: 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/mm 2 ), low operation voltage (74.5 V), and low dark current. An active area of a single MAPD-3NM was 3.7 × 3.7 mm 2, while this value was 17 × 17 mm 2 for the assembled array with pixel density of 2190 000. The size of the tested LaBr3 :Ce scintillator was 15 × 15 × 15 mm 3 . 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.