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Proceedings Paper

Improving neutron detection in semiconducting 6LiInSe2
Author(s): Ashley C. Stowe; Brenden Wiggins; Pijush Bhattacharya; Eugene Tupitsyn; Mike Groza; Liviu Matei; Keivan Stassun; Elan Herrera; Eric Lukosi; Arnold Burger
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Paper Abstract

Chalcopyrite crystals of 6LiInSe2 have recently been shown to respond to gamma and thermal neutron radiation. Thus far, large crystals have been prepared although the charge collection efficiency has not been sufficient for high energy resolution. In an effort to improve energy resolution needed for gamma spectroscopy as well as pulse shape discrimination for mixed gamma neutron fluxes, the precipitate concentration within the 6LiInSe2 crystal have been studied. The precipitate volume greatly affects the energy resolution in the pulse height spectrum. Further, the charge mobility varies greatly with holes being preferentially trapped by these precipitates or some other defect site within the crystal.

Paper Details

Date Published: 5 September 2014
PDF: 6 pages
Proc. SPIE 9213, Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XVI, 92130B (5 September 2014); doi: 10.1117/12.2062139
Show Author Affiliations
Ashley C. Stowe, Y-12 National Security Complex (United States)
Fisk Univ. (United States)
Brenden Wiggins, Y-12 National Security Complex (United States)
Vanderbilt Univ. (United States)
Pijush Bhattacharya, Fisk Univ. (United States)
Eugene Tupitsyn, Fisk Univ. (United States)
Mike Groza, Fisk Univ. (United States)
Liviu Matei, Fisk Univ. (United States)
Keivan Stassun, Vanderbilt Univ. (United States)
Elan Herrera, The Univ. of Tennessee Knoxville (United States)
Eric Lukosi, The Univ. of Tennessee Knoxville (United States)
Arnold Burger, Vanderbilt Univ. (United States)
Fisk Univ. (United States)

Published in SPIE Proceedings Vol. 9213:
Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XVI
Arnold Burger; Larry Franks; Ralph B. James; Michael Fiederle, Editor(s)

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