The layout of the repository will depend on a number of factors, including the characteristics of the host rock, refinements made to the final design of the engineered-barrier system, final safety considerations, and the inventory of used fuel to be managed. [...] Section 2 of this report describes the inventory of fuel expected to be stored in the DGR, the basis for the contaminant inventory in the fuel, and the theory and equations associated with radioactive decay and ingrowth as implemented in the ISM-NF, ISM-GEO and ISM-BIO models. [...] When the cladding is breached and the fuel is contacted by water, the location of the nuclides affects the rate at which they are released into the groundwater. [...] Therefore, the combined contribution of the volumetric flux and the flux at the concentration boundary are considered when calculated the amount of a given contaminant entering the system. [...] The primary processes modelled in the placement room portion of the near-field model are the failure of the container (Section 3.3.4) and transport through the placement room components (Section 3.3.5).
Authors
- Pages
- 116
- Published in
- Canada
