The Risø model for calculation the consequences of the release of radioactive material to the atmosphere

When making a safety evaluation of a nuclear plant it is necessary to estimate the consequences of a release of radioactive material from the plant; therefore Risø continuously develops calculation models and the associated computer programs for this purpose.

The present report gives a brief description of the most important features of the calculation model currently used at Risø for calculating radiation doses and contamination levels resulting from a release of radioactivity to the atmosphere. In addition, a survey is given of the data generally used in the model.

The calculation model is implemented as a computer program, PLUC0N2, written in Burroughs ALGOL for a B6700 computer.