The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 23, 2017
Filed:
Jun. 03, 2015
Ashley C. Stowe, Knoxville, TN (US);
Brenden Wiggins, Oak Ridge, TN (US);
Arnold Burger, Nashville, TN (US);
Ashley C. Stowe, Knoxville, TN (US);
Brenden Wiggins, Oak Ridge, TN (US);
Arnold Burger, Nashville, TN (US);
CONSOLIDATED NUCLEAR SECURITY, LLC, Oak Ridge, TN (US);
FISK UNIVERSITY, Nashville, TN (US);
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 aLiInSecrystal. The radiation is comprised of neutrons that decrease theLi concentration of the chalcopyrite crystal via aLi(n,α) 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.