Open AccessDirect Investigations of the Immobilization of Radionuclides in the Alteration Products of Spent Nuclear Fuel
Author(s) -
Peter C. Burns,
Robert J. Finch,
David J Wronkiewicz
Publication year - 2004
Language(s) - English
Resource type - Reports
DOI - 10.2172/835725
Subject(s) - spent nuclear fuel , radioactive waste , waste management , radionuclide , environmental science , high level waste , nuclear fuel , waste disposal , engineering , nuclear engineering , physics , quantum mechanics
Safe disposal of the nation's nuclear waste in a geological repository involves unique scientific and engineering challenges owing to the very long-lived radioactivity of the waste. The repository must retain a variety of radionuclides that have vastly different chemical characters for several thousand years. Most of the radioactivity that will be housed in the proposed repository at Yucca Mountain will be associated with spent nuclear fuel, much of which is derived from commercial reactors. DOE is custodian of approximately 8000 tons of spent nuclear fuel that is also intended for eventual disposal in a geological repository. Unlike the spent fuel from commercial reactors, the DOE fuel is diverse in composition with more than 250 varieties. Safe disposal of spent fuel requires a detailed knowledge of its long-term behavior under repository conditions, as well as the fate of radionuclides released from the spent fuel as waste containers are breached