ALEXANDRIA, Va., June 17 -- United States Patent no. 12,315,643, issued on May 27, was assigned to Tokamak Energy Ltd (Abingdon, Great Britain).
"Layered neutron shielding" was invented by Jack Astbury (Abingdon, Great Britain), Thomas Davis (Evesham, Great Britain) and Simon Middleburgh (Chester, Great Britain).
According to the abstract* released by the U.S. Patent & Trademark Office: "Neutron shielding. The neutron shielding comprises a plurality of absorption layers (201, 203), and at least one moderating layer (202). The plurality of absorption layers each comprise tungsten boride or tungsten carbide. The at least one moderating layer comprises a metal hydride. Each moderating layer is between at least two absorption layers."
The pa...