The U.S. Department of Energy is working to immobilize excess plutonium at its Savannah River Site (SRS) as part of a two track approach for the disposition of weapons usable plutonium. The Plutonium Immobilization process involves the disposition of excess plutonium by incorporation into ceramic pucks. The ceramic pucks, after pressing, are roughly 3-1/2 inches in diameter by 1-3/8 inches…Read more ›