MODELING THE RELEASE TO THE KARA SEA OF RADIOACTIVE-WASTE FROM THE ICEBREAKER LENIN - VERSION II

In progressing its work for the International Arctic Seas Assessment P roject (IASAP), under the auspices of the International Atomic Energy Agency (IAEA), the Source Term Working Group has developed a FORTRAN m odel to predict a radiation release profile into the Kara Sea from rea ctor fuel and activated components of the nuclear icebreaker Lenin. Th e model accounts for the degradation of containment materials through corrosion and other mechanisms, and predicts annual release rates to 4 500 years into the future. Version I of the model was developed as a s preadsheet program from the original data gathered by the Working Grou p and the results were published by Timms ef al. (1994); revised infor mation on the method of disposal necessitated a change to the program, which is presented in this paper as Version II. The model is being ap plied to other marine reactors dumped in the Kara Sea in a programme o f work for the IASAP aimed at assessing the collective release profile from all significant dump sites in this region. (C) 1997 Published by Elsevier Science Ltd. All rights reserved.