ALEXANDRIA, Va., July 23 -- United States Patent no. 12,366,673, issued on July 22, was assigned to Westinghouse Electric Co. LLC (Cranberry Township, Pa.).

"Device for measuring the activity of nuclear isotopes using a self-power detector" was invented by Michael D. Heibel (Broomfield, Colo.) and Michael C. Prible (Cranberry Township, Pa.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A measuring device for measuring the activity of a specimen of a radioactive isotope is disclosed. The specimen of the radioactive isotope is contained within a capsule. The measuring device comprises an inner enclosure, a gamma-radiation sensitive self-power detector (SPD) positioned around the inner enclosure, and an outer e...