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Study on the Possibility of Neutron Gamma Discrimination in GAGG Crystal

Authors :
Lishuang Ma
Lingfeng Zhang
Zhigang Wang
Sen Qian
Yao Zhu
Qi Wu
Min Yan
Hao Guo
Shuo Peng
Zhehao Hua
Source :
Journal of Physics: Conference Series. 2374:012133
Publication Year :
2022
Publisher :
IOP Publishing, 2022.

Abstract

The scintillators capable of neutron detection are being the research hotspot recently. In this manuscript, we investigated the possibility of cerium-doped gadolinium aluminium gallium garnet (GAGG: Ce) crystal to achieve neutron gamma discrimination through pulse shape discrimination (PSD) method. PSD is a method based on the principle that the waveforms of scintillation light differ for different particles. The experiments show that it’s hard for single GAGG crystal to distinguish the neutron from the gamma-ray. Therefore, a composite crystal made of gamma-sensitive crystal and GAGG crystal was furtherly developed. Using the 252Cf neutron source, the composite is proven to be capable of discriminating the neutrons from the gamma-ray and the corresponding FOM is 3.33.

Details

ISSN :
17426596 and 17426588
Volume :
2374
Database :
OpenAIRE
Journal :
Journal of Physics: Conference Series
Accession number :
edsair.doi...........621fa782503bfb099f7a34c7e78898e6
Full Text :
https://doi.org/10.1088/1742-6596/2374/1/012133