Author:
Zhao K.,Huang Y.,Shan C.,Feng C.,Wang Z.,Chang K.,Xie W.,Liu F.,Liu S.
Abstract
Abstract
This paper describes a low-power neutron and gamma-ray
detector based on a CLYC scintillator enriched with 96% 6Li
for environmental radiation monitoring. The detector is designed in
compliance with the IP66 standard having water and dust release
capability. The power consumption of the detector is 3.5 W, and the
operating temperature is from -15° to +40°. The energy
response range for gamma rays is 40 keV to 3 MeV, while the energy
resolution of the detector is 4.8% (662 keV). A standard figure
of merit (FOM) is used to evaluate neutron-gamma discrimination,
achieving a value of 3.42. The mixed neutron-gamma environment was
simulated at the Back-n neutron beam of the China Spallation Neutron
Source (CSNS). The test results show that the detector can detect
the changes in the gamma dose and neutron count rates when the beam
is turned on and off in real-time. The proposed detector is suitable
for the application of long-term environmental radiation monitoring
for nuclear facilities or buildings housing radioactive sources.
Subject
Mathematical Physics,Instrumentation