ALEXANDRIA, Va., March 19 -- United States Patent no. 12,254,995, issued on March 18, was assigned to FRAMATOME GmbH (Erlangen, Germany).

"Method for providing a neutron radiation shield, and according shielding system" was invented by Lars Ackermann (Erlangen, Germany), Ralf Buckermann (Erlangen, Germany) and Stefan Skandera (Erlangen, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for providing a neutron radiation shield includes a step (a) of providing a wall having an opening; and a step (b) of at least partially filling a space in the opening with a neutron moderator. Step (b) includes blast-injecting plastic granules into the opening with a blower device to form the neutron moderator."...