ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,548,687, issued on Feb. 10, was assigned to Westinghouse Electric Co. LLC (Cranberry Township, Pa.).

"Use of sub-critical neutron multiplication driven by electronic neutron generators to produce radioisotopes" was invented by Michael D. Heibel (Broomfield, Colo.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A target irradiation apparatus for producing radioisotope sources is provided. The target irradiation apparatus comprises a containment vessel, a plurality of electronic neutron generator inserts and a removable neutron enhancement cartridge. The containment vessel comprises an inner surface, an outer surface, a first end, a second end, a body sect...