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The European Commission has initiated a collaborative programme of research on nuclear reactor safety. This report forms part of the study of the possible radioactive release to the environment following a postulated severe accident at a Light Water Reactor. A severe accident is taken as one in which the cooling of the core is lost and the core starts to melt. The aim of the report is to identify the radionuclides and the related phenomena which have been shown to have the most important impact on the source terms in the Probabilistic Safety Assessments that have been carried out for commercial Light Water Reactors. As far as possible, this report focuses on generic issues, but it is inevitable that the design of the reactor has an important impact on which accident sequences make the most significant contribution to the risk. In order to address the main design features which affect the source term, four Light Water Reactor designs are considered which span the range of designs that exist or are proposed for construction in Western Europe.

Additional information

Authors: DUTTON L M C, NNC Ltd, Knutsford (GB);JONES S H M, NNC Ltd, Knutsford (GB);EYINK J, Siemens AG, Erlangen (DE)
Bibliographic Reference: EUR 16502 EN (1995) 221pp., FS, free of charge
Availability: Available from the European Commission, Mr G Cottone, DG XII-F-5, 200 rue de la Loi, B-1049 Bruxelles (BE)
ISBN: ISBN 92-827-5284-4
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