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.

Date of Patent:
Oct. 06, 2026

Filed:

Oct. 13, 2023
Applicant:

Ut-battelle, Llc, Oak Ridge, TN (US);

Inventors:

Richard Reed, Knoxville, TN (US);

Eva Uribe, Snoqualmie, WA (US);

Louise G. Worrall, Maryville, TN (US);

Thomas J. Harrison, Knoxville, TN (US);

Assignee:

UT-BATTELLE, LLC, Oak Ridge, TN (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01T 1/16 (2006.01); G01T 1/167 (2006.01); G01T 1/30 (2006.01); G21C 19/50 (2006.01);
U.S. Cl.
CPC ...
G01T 1/30 (2013.01); G01T 1/167 (2013.01); G21C 19/50 (2013.01);
Abstract

A system and a method for the remote monitoring of an irradiated salt mass within a decay enclosure is provided. The system and the method determine a mass ratio of a first radioisotope relative to a second radioisotope, the second radioisotope having a significantly shorter half-life than the first radioisotope. In addition, the second radioisotope includes a shorter half-life than an effective half-life of the decay enclosure, and the first radioisotope includes a longer half-life than the effective half-life of the decay enclosure. The mass ratio quickly decreases outside of a target range after material diversion, while remaining below the target range for several years. As a consequence, the isotopic mass ratio presents a rapid and enduring indicator of inventory change, which is of extreme importance in detecting a diversion of the irradiated salt mass, which remains a potential proliferation target.


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