Development of a Multi-Signature Composite Detector Based on CLYC and Plastic Scintillator
2018
A single detector instrument capable of detecting gamma rays as well as fast and thermal neutrons is of great interest for many applications, including nuclear nonproliferation and international safeguards. The Cs 2 LiYCl 6 (CLYC) scintillator is very promising for mixed radiation field detection: it has high detection efficiency for thermal neutrons and gamma rays, and has good energy resolution (approx. 5% at 662 keV). In addition, CLYC provides fast neutron detection capabilities due to 35 Cl(n, p) reaction [1] – [2] . To increase the that efficiency, while preserving the thermal neutron and gamma ray capabilities, we are developing a composite scintillator whereby CLYC is embedded inside of a plastic organic scintillator capable of pulse shape discrimination. Figure 1 shows one possible embodiment of such a detector.
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