The COSMOS-S/D Assessment Code Complex for a SLB Repository at CRNL

Abstract

The COSMOS-S/D code complex is being developed by the Waste Management Technology Division at CRNL. It models leaching of radionuclides from containment, their migration through vault materials and the ground, their dispersion in surface waters and the atmosphere, and eventual irradiation of man. It is being used at present for safety assessment of a proposed Shallow Land Burial Facility, but it is suitable for a wide range of shallow land burial problems. Some examples of its output are given. The scenarios were chosen to be rather conservative, in order to demonstrate the various sections of the code.