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Proceedings Paper

Use of CLYC spectrometer in counter-terrorism applications
Author(s): H. Ing; M. B. Smith; M. R. Koslowsky; H. R. Andrews
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Paper Abstract

A new scintillator crystal, now known as CLYC (Cs2LiYCl6:Ce), has been under development for over 15 years (1). It was primarily of interest for radiation detection applications because of its good energy resolution for gamma rays (< 4% for 662 keV gamma rays) and its capability for detection of thermal neutrons. The pulse shapes of the signals from the two radiations are different, which allow them to be separated electronically, permitting simultaneous detection of gamma rays and neutrons. The crystal is now commercially available. Early investigations of the neutron response by the current authors (2) revealed that CLYC also responds to fast neutrons. In fact, the good energy resolution of the response under monoenergetic neutron irradiations showed that CLYC was an excellent high-energy neutron spectrometer. This discovery has great impact on the field of neutron spectroscopy, which has numerous, although often specialized, applications. This presentation focuses on applications in counter-terrorism scenarios where neutrons may be involved. The relative importance of the fast neutron response of CLYC, compared to the thermal and gamma-ray response, will be discussed for these scenarios.

Paper Details

Date Published: 22 May 2015
PDF: 14 pages
Proc. SPIE 9455, Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XVI, 945506 (22 May 2015); doi: 10.1117/12.2181675
Show Author Affiliations
H. Ing, Bubble Technology Industries, Inc. (Canada)
M. B. Smith, Bubble Technology Industries, Inc. (Canada)
M. R. Koslowsky, Bubble Technology Industries, Inc. (Canada)
H. R. Andrews, Bubble Technology Industries, Inc. (Canada)

Published in SPIE Proceedings Vol. 9455:
Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XVI
Augustus Way Fountain III, Editor(s)

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