Neutron response of the TLYC scintillator

• Published in: Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Vol. 993; no. na; p. 165050
• Main Authors: Henderson, J., Casperson, R.J., Hughes, R.O., Wu, C.Y.
• Format: Journal Article
• Language: English
• Published: United States Elsevier B.V 21.03.2021; Elsevier
• Subjects: Neutron detection; NUCLEAR PHYSICS AND RADIATION PHYSICS; TLYC; TLYC; Neutron detection
• ISSN: 0168-9002; 1872-9576
• DOI: 10.1016/j.nima.2021.165050

The response of the recently developed Tl2LiYCl6(Ce) scintillator to neutrons was measured and the 35Cl(n,p) channel observed in the material for the first time. The scintillator was exposed to a 252Cf source mounted within a parallel-plate avalanche counter for fission-fragment coincident measurements. Proton- and t+α-like events are selected with the pulse-shape discrimination technique. Comparison of energy-deposition and time-of-flight allows the quenching of the different channels to be assessed. The 6Li(n,t)α channel is found to have its energy quenched to 37(1)% relative to γ-ray detection, while the proton energy deposition spectrum is quenched to 60(1)%.