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Title: Effects of proton-induced radiation damage on CLYC and CLLBC performance

Abstract

Cerium-doped Cs2LiYCl6 (CLYC) and Cs2LiLaBrxCl6-x (CLLBC) are scintillators in the elpasolite family that are attractive options for resource-constrained applications due to their ability to detect both gamma rays and neutrons within a single volume. Space-based detectors are one such application, however, the radiation environment in space can over time damage the crystal structure of the elpasolites, leading to degraded performance. We have exposed 4 samples each of CLYC and CLLBC to 800 MeV protons at the Los Alamos Neutron Science Center. The samples were irradiated with a total number of protons of 1.3 x 109, 1.3 x 1010, 5.2 x 1010, and 1.3 x 1011, corresponding to estimated doses of 0.14, 1.46, 5.82, and 14.6 kRad, respectively on the CLYC samples and 0.14, 1.38, 5.52, and 13.8 kRad, respectively on the CLLBC samples. Here, we report the impact these radiation doses have on the light output, activation, gamma-ray energy resolution, pulse shapes, and pulse-shape discrimination figure of merit for CLYC and CLLBC.

Authors:
ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]
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  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Research Org.:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE Laboratory Directed Research and Development (LDRD) Program
OSTI Identifier:
1569624
Alternate Identifier(s):
OSTI ID: 1691747
Report Number(s):
LA-UR-19-26719
Journal ID: ISSN 0168-9002; TRN: US2001439
Grant/Contract Number:  
89233218CNA000001
Resource Type:
Accepted Manuscript
Journal Name:
Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
Additional Journal Information:
Journal Volume: 948; Journal Issue: C; Journal ID: ISSN 0168-9002
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; CLYC; CLLBC; Elpasolite; Radiation damage

Citation Formats

Mesick, Katherine Elizabeth, Bartlett, Kurtis David, Coupland, Daniel David Schechtman, and Stonehill, Laura Catherine. Effects of proton-induced radiation damage on CLYC and CLLBC performance. United States: N. p., 2019. Web. doi:10.1016/j.nima.2019.162774.
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Mesick, Katherine Elizabeth, Bartlett, Kurtis David, Coupland, Daniel David Schechtman, & Stonehill, Laura Catherine. Effects of proton-induced radiation damage on CLYC and CLLBC performance. United States. https://doi.org/10.1016/j.nima.2019.162774
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Mesick, Katherine Elizabeth, Bartlett, Kurtis David, Coupland, Daniel David Schechtman, and Stonehill, Laura Catherine. Thu . "Effects of proton-induced radiation damage on CLYC and CLLBC performance". United States. https://doi.org/10.1016/j.nima.2019.162774. https://www.osti.gov/servlets/purl/1569624.
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@article{osti_1569624,
title = {Effects of proton-induced radiation damage on CLYC and CLLBC performance},
author = {Mesick, Katherine Elizabeth and Bartlett, Kurtis David and Coupland, Daniel David Schechtman and Stonehill, Laura Catherine},
abstractNote = {Cerium-doped Cs2LiYCl6 (CLYC) and Cs2LiLaBrxCl6-x (CLLBC) are scintillators in the elpasolite family that are attractive options for resource-constrained applications due to their ability to detect both gamma rays and neutrons within a single volume. Space-based detectors are one such application, however, the radiation environment in space can over time damage the crystal structure of the elpasolites, leading to degraded performance. We have exposed 4 samples each of CLYC and CLLBC to 800 MeV protons at the Los Alamos Neutron Science Center. The samples were irradiated with a total number of protons of 1.3 x 109, 1.3 x 1010, 5.2 x 1010, and 1.3 x 1011, corresponding to estimated doses of 0.14, 1.46, 5.82, and 14.6 kRad, respectively on the CLYC samples and 0.14, 1.38, 5.52, and 13.8 kRad, respectively on the CLLBC samples. Here, we report the impact these radiation doses have on the light output, activation, gamma-ray energy resolution, pulse shapes, and pulse-shape discrimination figure of merit for CLYC and CLLBC.},
doi = {10.1016/j.nima.2019.162774},
journal = {Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment},
number = C,
volume = 948,
place = {United States},
year = {Thu Sep 19 00:00:00 EDT 2019},
month = {Thu Sep 19 00:00:00 EDT 2019}
}
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https://doi.org/10.1016/j.nima.2019.162774
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Works referenced in this record:

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