MACCS (MELCOR Accident Consequence Code System) (NUREG/BR-0527)

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Publication Information

Date Published: April 2017

U.S. Nuclear Regulatory Commission
Washington, DC 20555-0001


MACCS is a fully integrated, engineering-level severe accident consequence computer code developed to analyze the offsite consequences of a hypothetical release of radioactive material to the environment. Sandia National Laboratories developed the code for the U.S. Nuclear Regulatory Commission (NRC) primarily as a probabilistic risk assessment tool.

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