Journal
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
Volume 714, Issue -, Pages 121-127Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.nima.2013.02.043
Keywords
CLYC; Fast neutrons; Timing resolution; Count rate; Scintillation decay; Pulse shapes
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Funding
- U.S. Department of Energy [DE-FG02-94ER40848, DE-AC07-05ID14517]
- U.S. Department of Energy (DOE) [DE-FG02-94ER40848] Funding Source: U.S. Department of Energy (DOE)
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Cs2LiYCl6:Ce (CLYC) has been demonstrated to be sensitive to thermal neutrons via the Li-6(n, alpha)t reaction, and recently to fast neutrons via the Cl-35(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 gamma-ray induced excitations were captured, digitized over a 16 mu s 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 45 kHz. Published by Elsevier B.V.
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