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=Volume 8 - 2020

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=Lithium Indium Selenide (LiInSe2) 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 nonlinear 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 mm2 active area. The thermal neutron detection sensitivity and gamma rejection ratio (GRR) are comparable to 10atm, He-3 tubes of similar size. Synthesis, crystal growth, detector fabrication, and characterization are discussed.