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Title: Tl2LiYCl6: Large Diameter, High Performing Dual Mode Scintillator

Abstract

Tl2LiYCl6:Ce (TLYC) is a recently discovered dual mode gamma-ray and neutron scintillator. So far small crystals of this composition have been studied, but for practical applications with affordable price, large-scale crystals are required. In this work, we present successful efforts to grow crack-free single crystals with sizes up to $$\varnothing$$1" × 5.5". A variety of experimental techniques were employed to investigate the scintillation properties. A $$\varnothing$$1" × 1.2" TLYC cylinder has a light yield of 25,000 ph/MeV, and its energy resolution is better than 4% at 662 keV. The gamma equivalent energy (GEE) produced by thermal neutron is 1.89 MeVee, along with a neutron induced light yield of 47,000 ph/n. Pulse shape discrimination (PSD) between gamma-rays and neutrons has been successfully shown with a current Figure-of-Merit (FOM) of 2.4. This paper explores the crystal growth, scintillation properties, and potential applications of TLYC.

Authors:
ORCiD logo [1];  [1]; ORCiD logo [1];  [1];  [1];  [1]
  1. Radiation Monitoring Devices, Inc., Watertown, MA (United States)
Publication Date:
Research Org.:
Radiation Monitoring Devices, Inc., Watertown, MA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1534433
Grant/Contract Number:  
SC0015793
Resource Type:
Accepted Manuscript
Journal Name:
Crystal Growth and Design
Additional Journal Information:
Journal Volume: 17; Journal Issue: 7; Journal ID: ISSN 1528-7483
Publisher:
American Chemical Society
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; Chemistry; Crystallography; Materials science; Crystals; Crystallization; Crystal structure; Light; Energy

Citation Formats

Hawrami, Rastgo, Ariesanti, Elsa, Wei, Hua, Finkelstein, Jeffrey, Glodo, Jarek, and Shah, Kanai. Tl2LiYCl6: Large Diameter, High Performing Dual Mode Scintillator. United States: N. p., 2017. Web. doi:10.1021/acs.cgd.7b00583.
Hawrami, Rastgo, Ariesanti, Elsa, Wei, Hua, Finkelstein, Jeffrey, Glodo, Jarek, & Shah, Kanai. Tl2LiYCl6: Large Diameter, High Performing Dual Mode Scintillator. United States. doi:10.1021/acs.cgd.7b00583.
Hawrami, Rastgo, Ariesanti, Elsa, Wei, Hua, Finkelstein, Jeffrey, Glodo, Jarek, and Shah, Kanai. Mon . "Tl2LiYCl6: Large Diameter, High Performing Dual Mode Scintillator". United States. doi:10.1021/acs.cgd.7b00583. https://www.osti.gov/servlets/purl/1534433.
@article{osti_1534433,
title = {Tl2LiYCl6: Large Diameter, High Performing Dual Mode Scintillator},
author = {Hawrami, Rastgo and Ariesanti, Elsa and Wei, Hua and Finkelstein, Jeffrey and Glodo, Jarek and Shah, Kanai},
abstractNote = {Tl2LiYCl6:Ce (TLYC) is a recently discovered dual mode gamma-ray and neutron scintillator. So far small crystals of this composition have been studied, but for practical applications with affordable price, large-scale crystals are required. In this work, we present successful efforts to grow crack-free single crystals with sizes up to $\varnothing$1" × 5.5". A variety of experimental techniques were employed to investigate the scintillation properties. A $\varnothing$1" × 1.2" TLYC cylinder has a light yield of 25,000 ph/MeV, and its energy resolution is better than 4% at 662 keV. The gamma equivalent energy (GEE) produced by thermal neutron is 1.89 MeVee, along with a neutron induced light yield of 47,000 ph/n. Pulse shape discrimination (PSD) between gamma-rays and neutrons has been successfully shown with a current Figure-of-Merit (FOM) of 2.4. This paper explores the crystal growth, scintillation properties, and potential applications of TLYC.},
doi = {10.1021/acs.cgd.7b00583},
journal = {Crystal Growth and Design},
number = 7,
volume = 17,
place = {United States},
year = {2017},
month = {6}
}

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Cited by: 8 works
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