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:
- Issue Date:
- Research Org.:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Fisk Univ., Nashville, TN (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1358244
- Patent Number(s):
- 9658350
- Application Number:
- 14/729,715
- Assignee:
- Consolidated Nuclear Security, LLC (Oak Ridge, TN); Fisk University (Nashville, TN)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C30 - CRYSTAL GROWTH C30B - SINGLE-CRYSTAL-GROWTH
G - PHYSICS G01 - MEASURING G01T - MEASUREMENT OF NUCLEAR OR X-RADIATION
- 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. Tue .
"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 = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2017},
month = {5}
}
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