A total of 500 tonnes of Russian warhead grade HEU ( high enriched uranium, equivalent to 20, 008 nuclear warheads ) were converted in Russia to nearly 15, 000 tonnes tons of LEU ( low enriched uranium ) and sold to the US for use as fuel in American nuclear power plants.
42.
As part of the Army Nuclear Power Program the ship was transferred to the U . S . Army in March 1963, and fitted with a pressurized water reactor, fuelled by used low enriched uranium, designed by Martin Marietta, becoming the world's first floating nuclear power plant, at a cost of $ 17 million.
43.
The "'HT 3 R "', per the PCD, is a Generation IV ( GEN-IV ) gas-cooled ( with Helium ) reactor with a graphite block core containing fuel compacts . These compacts are made by mixing graphite with TRISO fuel pellets with Low Enriched Uranium ( LEU ) which has less than 20 % of Uranium-235.
44.
Under this Agreement, United States and Russia agreed to commercially implement a 20-year program to convert 500 metric tons of HEU ( uranium 235 enriched to 90 percent ) taken from Soviet era warheads, into LEU, low enriched uranium ( less than 5 percent uranium 235 ) . The terms of the agreement required that it be implemented on commercial terms without government funds.
