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Title: Rechargeable solid state neutron detector and visible radiation indicator

Abstract

A radiation detection device, including: a support structure; and a chalcopyrite crystal coupled to the support structure; wherein, when the chalcopyrite crystal is exposed to radiation, a visible spectrum of the chalcopyrite crystal changes from an initial color to a modified color. The visible spectrum of the chalcopyrite crystal is changed back from the modified color to the initial color by annealing the chalcopyrite crystal at an elevated temperature below a melting point of the chalcopyrite crystal over time. The chalcopyrite crystal is optionally a .sup.6LiInSe.sub.2 crystal. The radiation is comprised of neutrons that decrease the .sup.6Li concentration of the chalcopyrite crystal via a .sup.6Li(n,.alpha.) reaction. The initial color is yellow and the modified color is one of orange and red. The annealing temperature is between about 450 degrees C. and about 650 degrees C. and the annealing time is between about 12 hrs and about 36 hrs.

Inventors:
; ;
Publication Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Fisk Univ., Nashville, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1358244
Patent Number(s):
9,658,350
Application Number:
14/729,715
Assignee:
Consolidated Nuclear Security, LLC (Oak Ridge, TN); Fisk University (Nashville, TN)
DOE Contract Number:  
NA0001942
Resource Type:
Patent
Resource Relation:
Patent File Date: 2015 Jun 03
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY

Citation Formats

Stowe, Ashley C., Wiggins, Brenden, and Burger, Arnold. Rechargeable solid state neutron detector and visible radiation indicator. United States: N. p., 2017. Web.
Stowe, Ashley C., Wiggins, Brenden, & Burger, Arnold. Rechargeable solid state neutron detector and visible radiation indicator. United States.
Stowe, Ashley C., Wiggins, Brenden, and Burger, Arnold. 2017. "Rechargeable solid state neutron detector and visible radiation indicator". United States. https://www.osti.gov/servlets/purl/1358244.
@article{osti_1358244,
title = {Rechargeable solid state neutron detector and visible radiation indicator},
author = {Stowe, Ashley C. and Wiggins, Brenden and Burger, Arnold},
abstractNote = {A radiation detection device, including: a support structure; and a chalcopyrite crystal coupled to the support structure; wherein, when the chalcopyrite crystal is exposed to radiation, a visible spectrum of the chalcopyrite crystal changes from an initial color to a modified color. The visible spectrum of the chalcopyrite crystal is changed back from the modified color to the initial color by annealing the chalcopyrite crystal at an elevated temperature below a melting point of the chalcopyrite crystal over time. The chalcopyrite crystal is optionally a .sup.6LiInSe.sub.2 crystal. The radiation is comprised of neutrons that decrease the .sup.6Li concentration of the chalcopyrite crystal via a .sup.6Li(n,.alpha.) reaction. The initial color is yellow and the modified color is one of orange and red. The annealing temperature is between about 450 degrees C. and about 650 degrees C. and the annealing time is between about 12 hrs and about 36 hrs.},
doi = {},
url = {https://www.osti.gov/biblio/1358244}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue May 23 00:00:00 EDT 2017},
month = {Tue May 23 00:00:00 EDT 2017}
}

Works referenced in this record:

SiC photodiode detectors for radiation detection applications
patent-application, March 2003


Methods And Compositions For The Detection Of X-Ray And Gamma-Ray Radiation
patent-application, June 2012


Detector with a Conical Scintillator
patent-application, January 2013


Semiconductor radiation detector
patent, March 2010


Growth and properties of LiGaX2 (X = S, Se, Te) single crystals for nonlinear optical applications in the mid-IR
journal, April 2003


LiGaTe2:  A New Highly Nonlinear Chalcopyrite Optical Crystal for the Mid-IR
journal, June 2005


Characterization of the mid-infrared nonlinear crystals LiInSe 2 and LiInS 2 in the IR range
conference, October 2006