AUTHOR=Kargar Alireza , Hong Huicong , Tower Joshua , Gueorguiev Andrey , Kim Hadong , Cirignano Leonard , Christian James F. , Squillante Michael R. , Shah Kanai 

TITLE=LiInSe2 for Semiconductor Neutron Detectors

JOURNAL=Frontiers in Physics

VOLUME=8

YEAR=2020

URL=https://www.frontiersin.org/journals/physics/articles/10.3389/fphy.2020.00078

DOI=10.3389/fphy.2020.00078

ISSN=2296-424X

ABSTRACT=<p>Lithium indium selenide (LiInSe<sub>2</sub>) is being developed for use as a room temperature semiconductor detector for thermal neutrons. The material has been studied for a number of applications including non-linear optics such as parametric oscillators, as anode material for lithium ion batteries, piezoelectrics, as a scintillation detector material, and as a semiconductor detector material. The recent advances of the crystal growth, material processing, and detector fabrication have led to semiconductor neutron detectors with up to 100 mm<sup>2</sup> active area. The theoretical thermal neutron detection sensitivity and gamma rejection ratio (GRR) are comparable to 10 atm, <sup>3</sup>He tubes of similar size. Detector fabrication and characterization are described and the results are discussed.</p>