ALEXANDRIA, Va., July 30 -- United States Patent no. 12,372,676, issued on July 29, was assigned to LAWRENCE LIVERMORE NATIONAL SECURITY LLC (Livermore, Calif.).

"Neutron activation detector" was invented by Richard M. Bionta (Livermore, Calif.) and Eugene Albert Henry (Livermore, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A neutron activation detector comprises a first enclosure, a plurality of electrical leads, and an activation medium disposed within the enclosure. The activation medium consists substantially of a material that is activated by fast neutrons, and is arranged within the enclosure so that activation of the material by fast neutrons results in a current between the plurality of ele...