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  1. The estimation of source term and introduction of countermeasures based on dominant conditions of accident progression.

    Article, Communication - En anglais

    International Workshop on Real-time Computing of the Environmental Consequences of an Accident Release from a Nuclear Installation. Aronsborg (SWE), 1996/10/07.

    A number of severe accident analyses for a reactor unit using VVER-440/V213 have been performed to evaluate the source term and radiological consequences.

    As a tool for these analyses the STCP-M (for VVER modified version of Source Term Code Package) and RTARC (Real Time Accident Release Consequences) codes have been used.

    A set of emergency procedures manuals for quick estimation of the source term and countermeasures introduction during the early phase of severe accident progression have been developed at NPPRI.

    These manuals are based on the results of the 54 analysed sequences, which connect known dominant conditions of accident progression with potential leakage of the radionuclides into the environment.

    Emergency procedures manuals have been elaborated for the Crisis Centre of the Slovak Regulatory Authority and can be utilised manually and/or on a computer with such a program module.

    The manuals have been tested and verified during several emergency drills in the Crisis Centre and are subdivided into three groups : (1) evaluation of the bariers integrity, (2) source term estimation and (3) estimation of the distances for the countermeasures introduction.

    The methodology introduced above and the methods of applying the emergency procedures are described.

    Mots-clés Pascal : Procédure intervention, Source rayonnement, Système temps réel, Simulation, Phase initiale, Procédure urgence, Analyse risque, Radiocontamination, Produit radioisotopique, Estimation paramètre, Accident nucléaire

    Mots-clés Pascal anglais : Intervention procedure, Radiation source, Real time system, Simulation, Early phase, Emergency procedure, Risk analysis, Radioactive contamination, Radiopharmaceuticals, Parameter estimation

    Logo du centre Notice produite par :
    Inist-CNRS - Institut de l'Information Scientifique et Technique

    Cote : 98-0024942

    Code Inist : 002B30A01C. Création : 17/04/1998.