Optimizing Cs2LiYCl6 for fast neutron spectroscopy

被引：46

作者：

D'Olympia, N. ^{[1
]}

Chowdhury, P. ^{[1
]}

Guess, C. J. ^{[1
]}

Harrington, T. ^{[1
]}

Jackson, E. G. ^{[1
]}

Lakshmi, S. ^{[1
]}

Lister, C. J. ^{[1
]}

Glodo, J. ^{[2
]}

Hawrami, R. ^{[2
]}

Shah, K. ^{[2
]}

Shirwadkar, U. ^{[2
]}

机构：

[1] Univ Massachusetts, Dept Phys & Appl Phys, Lowell, MA 01854 USA

[2] Radiat Monitoring Devices Inc, Watertown, MA 02472 USA

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2012年 / 694卷

关键词：

Fast neutron detector; CLYC; N-gamma discrimination; Cl-35(nP); Li-6(n alpha); Cs2LiYCl6; SCINTILLATOR;

D O I：

10.1016/j.nima.2012.07.021

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Cs2UYCl6 (CLYC) has generated recent interest as a thermal neutron detector due to its excellent n/gamma-ray pulse-shape discrimination and energy resolution. Here, the capabilities of CLYC as a fast neutron detector and spectrometer are reported. A 1 in. x 1 in. CLYC detector was used to measure the response of mono-energetic neutrons over a range of 0.8-2.0 MeV produced via the Li-7(p,n) reaction at the University of Massachusetts Lowell 5.5 MV Van de Graaff accelerator. A broad continuum from the Li-6(n, alpha) reaction was observed, as well as additional peaks below the thermal capture peak. Based on possible reactions in CLYC, the additional peaks are determined to be due to the Cl-35(n,p)S-35 reaction, with a Q-value of +615 keV, and corroborated in simulations using MCNPX. The average resolution of 9% for these peaks makes CLYC a promising candidate for a fast neutron spectrometer. Published by Elsevier B.V.

引用

页码：140 / 146

页数：7

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