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Title: Radionuclide Immobilization in the Phases Formed by corrosion of spent Nuclear Fuel: The long-Term Assessment

Abstract

This research program is focused on developing models of the long-term alteration of UO2 in spent nuclear fuel. The models are based on detailed studies of the long-term corrosion products of naturally occurring UO2+x under oxidizing conditions. The natural samples range in age from a few millions of years (Colorado Plateau in the U.S.A.) to approximately 2 billion years (the Oklo natural reactors in Africa). This research program identifies the phases that form, evaluates their stability and the ability of U6+-phases to incorporate key radionuclides. We have focused on radionuclides (237Np, 239Pu, 99Tc, 79Se and 129I) that make important contributions to exposure dose during geologic disposal.

Authors:
Publication Date:
Research Org.:
University of Michigan, Ann Arbor, Michigan (US)
Sponsoring Org.:
USDOE Office of Environmental Management (EM) (US)
OSTI Identifier:
828378
Report Number(s):
EMSP-59849-2000
R&D Project: EMSP 59849; TRN: US0403949
DOE Contract Number:  
FG07-97ER14816
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 1 Jun 2000
Country of Publication:
United States
Language:
English
Subject:
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; 54 ENVIRONMENTAL SCIENCES; CORROSION; CORROSION PRODUCTS; NUCLEAR FUELS; RADIOISOTOPES; RESEARCH PROGRAMS; STABILITY

Citation Formats

Ewing, Rodney C. Radionuclide Immobilization in the Phases Formed by corrosion of spent Nuclear Fuel: The long-Term Assessment. United States: N. p., 2000. Web. doi:10.2172/828378.
Ewing, Rodney C. Radionuclide Immobilization in the Phases Formed by corrosion of spent Nuclear Fuel: The long-Term Assessment. United States. doi:10.2172/828378.
Ewing, Rodney C. Thu . "Radionuclide Immobilization in the Phases Formed by corrosion of spent Nuclear Fuel: The long-Term Assessment". United States. doi:10.2172/828378. https://www.osti.gov/servlets/purl/828378.
@article{osti_828378,
title = {Radionuclide Immobilization in the Phases Formed by corrosion of spent Nuclear Fuel: The long-Term Assessment},
author = {Ewing, Rodney C},
abstractNote = {This research program is focused on developing models of the long-term alteration of UO2 in spent nuclear fuel. The models are based on detailed studies of the long-term corrosion products of naturally occurring UO2+x under oxidizing conditions. The natural samples range in age from a few millions of years (Colorado Plateau in the U.S.A.) to approximately 2 billion years (the Oklo natural reactors in Africa). This research program identifies the phases that form, evaluates their stability and the ability of U6+-phases to incorporate key radionuclides. We have focused on radionuclides (237Np, 239Pu, 99Tc, 79Se and 129I) that make important contributions to exposure dose during geologic disposal.},
doi = {10.2172/828378},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2000},
month = {6}
}

Technical Report:

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