Open AccessNeutron-gamma separation study for ZnS(Ag)/6LiF scintillator and silicon photomultipliers
Author(s) -
Ahmed Cherif Chergui,
E. Popova,
A. Stifutkin,
A. Ilyin,
O. Bychkova
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1690/1/012036
Subject(s) - scintillator , silicon photomultiplier , neutron , photomultiplier , materials science , oscilloscope , neutron detection , optics , neutron temperature , silicon , gamma ray , irradiation , photodetector , physics , radiochemistry , optoelectronics , nuclear physics , detector , chemistry
Registration of thermal neutrons while simultaneously suppressing or rejecting accompanying gamma-ray background is an important task for many fields. We report on two different experimental neutron-gamma separation studies, utilizing a ZnS(Ag)/ 6 LiF scintillator and pulse height discrimination technique: one is a comparison of the responses of a ZnS(Ag)/ 6 LiF scintillator and a ‘reference’ GAGG(Ce) scintillator when irradiated by gamma sources 137 Cs and 241 Am; and the second is testing a dual readout, where a photosensor coupled to the ZnS(Ag)/ 6 LiF scintillator screen on each side was irradiated by neutrons ( 252 Cf neutron source). For all measurements the silicon photomultipliers (SiPMs) PM3315-WB-A0 (3x3 mm 2 sensitive area, 15 μm cell pitch) manufactured by KETEK were used as a photosensor. High-speed digital oscilloscope LeCroyWR 620zi with a sample rate of 10 GS/s was used as a data acquisition system.