Probabilistic modeling of radionuclide release at the waste package subsystem boundary of a repository in basalt

Technical Report · Sat Dec 01 04:00:00 EST 1984

OSTI ID:5273580

Sagar, B; Eslinger, P W; Baca, R G; Anantatmula, R P

Estimation of radionuclide releases from a geologic repository at the waste packages boundary are required to judge whether the engineered barrier system complies with the performance regulations prescribed by the Nuclear Regulatory Commission and, to obtain the value of radionuclide source term needed to model mass transport in the near and far fields of the repository. The Basalt Waste Isolation Project has adopted a probabilistic methodology for the estimation of these releases. This methodology consists of a container corrosion model, a model describing the randon sequence of container failures in time, a finite element model to obtain the probability distribution of releases from a single container failing at a specified time, and a model to integrate the releases from the set of containers in the repository having random failure times. The final output of the analysis is obtained in terms of expected values and standard deviations of the fractional release rate (nuclide release rate divided by the initial nuclide inventory) and the cumulative release at the boundary of the waste package subsystem. 23 refs., 10 figs., 9 tabs.

• Research Organization: Rockwell International Corp., Richland, WA (USA). Rockwell Hanford Operations
• Sponsoring Organization: DOE/RW
• DOE Contract Number: AC06-77RL01030
• OSTI ID: 5273580
• Report Number(s): RHO-BWI-TA-012; ON: TI90004804
• Country of Publication: United States
• Language: English

Related Subjects

052002* -- Nuclear Fuels-- Waste Disposal & Storage
053000 -- Nuclear Fuels-- Environmental Aspects
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
BASALT
COMPILED DATA
DATA
ENVIRONMENTAL TRANSPORT
FORECASTING
HANFORD RESERVATION
HIGH-LEVEL RADIOACTIVE WASTES
IGNEOUS ROCKS
INFORMATION
MANAGEMENT
MASS TRANSFER
MATERIALS
MATHEMATICAL MODELS
NATIONAL ORGANIZATIONS
NUMERICAL DATA
RADIOACTIVE MATERIALS
RADIOACTIVE WASTE MANAGEMENT
RADIOACTIVE WASTES
RADIONUCLIDE MIGRATION
ROCKS
UNDERGROUND DISPOSAL
US DOE
US ERDA
US ORGANIZATIONS
VOLCANIC ROCKS
WASTE DISPOSAL
WASTE FORMS
WASTE MANAGEMENT
WASTES