Pulse-shape analysis of CLYC for thermal neutrons, fast neutrons, and gamma-rays

Cs2LiYCl6:Ce (CLYC) has been demonstrated to be sensitive to thermal neutrons via the 6Li(n, α)t reaction, and recently to fast neutrons via the 35Cl(n,p) reaction. The scintillation properties of CLYC have been investigated in more detail to further understand its capabilities. Pulses from thermal...

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Bibliographic Details
Published in:Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Accelerators, spectrometers, detectors and associated equipment, 2013-06, Vol.714, p.121-127
Main Authors: D'Olympia, N., Chowdhury, P., Lister, C.J., Glodo, J., Hawrami, R., Shah, K., Shirwadkar, U.
Format: Article
Language:English
Subjects:
Accelerators
CLYC
Count rate
Counting
Crystals
Discrimination
Fast neutrons
Pulse shapes
Scintillation
Scintillation decay
Thermal neutrons
Time measurements
Timing resolution
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Summary:Cs2LiYCl6:Ce (CLYC) has been demonstrated to be sensitive to thermal neutrons via the 6Li(n, α)t reaction, and recently to fast neutrons via the 35Cl(n,p) reaction. The scintillation properties of CLYC have been investigated in more detail to further understand its capabilities. Pulses from thermal neutron, fast neutron, and γ-ray induced excitations were captured, digitized over a 16μs time range, and analyzed to identify the scintillation mechanisms responsible for the observed shapes. Additionally, the timing resolutions of CLYC crystals of different sizes were measured in coincidence with a fast CeBr3 scintillator. The effect of high count rates on fast neutron energy resolution and pulse-shape discrimination was investigated up to 45kHz.
ISSN:0168-9002
1872-9576
DOI:10.1016/j.nima.2013.02.043