OFF-SITE CONSEQUENCE ANALYSIS BASED UPON THE PROJECTED DOSES ASSOCIATED WITH DIFFERENT CORE DAMAGE SCENARIOS

The qualitative aspects of a real-time source term estimation based up on off-site monitoring data are discussed. A segmented plume dispersio n model has been used to make off-site dose calculations using some of the most recent data regarding on-site source term estimation. This w ork deals with two accidental scenarios involving core damage. In the first, the containment safeguards have been implemented, allowing furt her off-site monitoring of the plume. The second is a severe accident where the containment has failed soon after loss of primary circuit in tegrity. It is thought that the outcome of this work provides the grou nds for a realistic source term estimation procedure based upon off-si te monitoring data, and what to expect from it, taking into account th e complexity of the situations depicted herein. This work shows that c urrent early warning systems require improvement in order to be used a s early phase off-site source term estimation tools.