Time Encoded Imaging of Neutrons and Photons Using CLYC Detector Equipped with a Dual Mode Collimator

Authors

Alexander Barzilov, University of Nevada, Las VegasFollow
Amber Guckes, University of Nevada, Las Vegas

Document Type

Article

Publication Date

1-31-2019

Publication Title

Sensors & Transducers Journal

Volume

229

Issue

1

First page number:

78

Last page number:

83

Abstract

Information about a radiation source’s position is essential for methods of simultaneous detection of neutrons and photons. The detection system that is capable of spatial mapping of radiation in two dimensions was developed. A single Cs2LiYCl6:Ce3+ detector enriched in 7Li isotope (C7 LYC) was equipped with a hybrid dualmode rotational collimator. The collimator was designed as a coded aperture (a modified uniformly redundant array) using lead and plastic components. C7LYC scintillator enables segregation of neutron signals from photon signals, and neutron and photon energy measurements. Radiation measurements were performed at different angular positions of the collimator using a single detector. Maximum likelihood expectation technique was utilized to generate the image of an assayed radiation source. Time encoded imaging of neutron and photon sources was demonstrated using this detection system.

Keywords

C7LYC; Pulse shape discrimination; Gamma spectroscopy; Neutron detection; Dual mode hybrid collimator; Time encoded imaging

Disciplines

Engineering | Mechanical Engineering

Language

English

Repository Citation

Barzilov, A., Guckes, A. (2019). Time Encoded Imaging of Neutrons and Photons Using CLYC Detector Equipped with a Dual Mode Collimator. Sensors & Transducers Journal, 229(1), 78-83.