Publication Laka-library:
Probabilistic accident consequence uncertainty analysis. Early health effects uncertainty assessment. Vol.2. Appendices (NUREG/CR-6545) (1997)
| Author | US NRC, CEC |
| Date | December 1997 |
| Classification | 6.01.3.70/60 (NUCLEAR SAFETY - RISK ANALYSES / RISK PERCEPTION) |
| Front | 
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From the publication:
Summary of the MACCS and COSYMA Consequence Codes Introduction The information developed in this study will be used to perform uncertainty studies using the European Commission (EC) consequence code COSYMA and the US Nuclear Regulatory Commission (USNRC) code MACCS. COSYMA and MACCS model the offsite consequences of postulated severe reactor accidents that release a plume of radioactive material to the atmosphere. These codes model the transport and deposition of radioactive gases and aerosols into the environment and the potential resulting human health and economic consequences. They calculate the health effects, impact of countermeasures and economic costs of the releases. The processes considered in the calculations, and the routes of exposure following accidental releases to atmosphere, are illustrated in Figure A-1. The calculations are divided into a number of steps, illustrated in Figure A-2. COSYMA and MACCS are modular codes, with different modules addressing the different stages of the calculation. However, while Figure A-1 illustrates the steps in the calculation, the modules of the codes do not correspond exactly with the boxes shown. The following sections give brief descriptions of the COSYMA and MACCS codes.
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