Preliminary calculations of release rates from spent fuel in a tuff repository. [Yucca Mountain Project]

Conference · Mon Jan 14 00:00:00 EST 1991

OSTI ID:6049172

Apted, M J ^[1]; O'Connell, W J; Lee, K H; MacIntyre, A T; Ueng, T S ^[2]; Pigford, T H; Lee, W W.L. ^[3]

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1. Pacific Northwest Lab., Richland, WA (USA)
2. Lawrence Livermore National Lab., CA (USA)
3. California Univ., Berkeley, CA (USA). Dept. of Nuclear Engineering Lawrence Berkeley Lab., CA (USA)

Time-dependent release rates of Tc-99, I-129, Cs-135, and Np-237 have been calculated for wet-drip and moist-continuous release modes from the engineered barrier system of a potential nuclear waste repository in unsaturated tuff, representative of a possible repository at Yucca Mountain in southern Nevada. We describe the modes of water contact and of release of dissolved radionuclides to the surrounding intact rock, and the corresponding calculational models. We list the parameter values adopted, and then present numerical results, conclusions, and recommendations. 21 refs., 5 figs., 2 tabs.

• Research Organization: Lawrence Livermore National Lab., CA (USA)
• Sponsoring Organization: DOE/RW
• DOE Contract Number: W-7405-ENG-48; AC06-76RL01830; AC03-76SF00098
• OSTI ID: 6049172
• Report Number(s): UCRL-JC-104832; CONF-910435-43; ON: DE91007127; TRN: 91-004796
• Resource Relation: Conference: American Nuclear Society (ANS) international high level radioactive waste management conference, Las Vegas, NV (USA), 28 Apr - 3 May 1991
• Country of Publication: United States
• Language: English

Related Subjects

12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
54 ENVIRONMENTAL SCIENCES
HIGH-LEVEL RADIOACTIVE WASTES
UNDERGROUND DISPOSAL
TUFF
RADIONUCLIDE MIGRATION
CESIUM 135
IODINE 129
NEPTUNIUM 237
POROSITY
RELEASE LIMITS
SPENT FUELS
TECHNETIUM 99
TIME DEPENDENCE
WATER
YUCCA MOUNTAIN
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ALKALI METAL ISOTOPES
ALPHA DECAY RADIOISOTOPES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
CESIUM ISOTOPES
ENERGY SOURCES
ENVIRONMENTAL TRANSPORT
FUELS
HEAVY NUCLEI
HOURS LIVING RADIOISOTOPES
HYDROGEN COMPOUNDS
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
IODINE ISOTOPES
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MANAGEMENT
MASS TRANSFER
MATERIALS
MINUTES LIVING RADIOISOTOPES
MOUNTAINS
NANOSEC LIVING RADIOISOTOPES
NEPTUNIUM ISOTOPES
NUCLEAR FUELS
NUCLEI
ODD-EVEN NUCLEI
OXYGEN COMPOUNDS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
RADIOISOTOPES
REACTOR MATERIALS
TECHNETIUM ISOTOPES
WASTE DISPOSAL
WASTE MANAGEMENT
WASTES
YEARS LIVING RADIOISOTOPES
052002* - Nuclear Fuels- Waste Disposal & Storage
540330 - Environment
Aquatic- Radioactive Materials Monitoring & Transport- (1990-)
540230 - Environment
Terrestrial- Radioactive Materials Monitoring & Transport- (1990-)