melcorMELCOR is a fully integrated, engineering-level computer code developed by Sandia National Laboratories for the U.S. Nuclear Regulatory Commission to model  the progression of severe accidents in nuclear power plants. A broad spectrum of severe accident phenomena in both boiling and pressurized water reactors is treated in MELCOR in a unified framework. MELCOR applications include estimation of severe accident source terms, and their sensitivities and uncertainties in a variety of applications.


The latest version of the MELCOR 2.1 documents listed below are available on the U.S. Nuclear Regulatory Commission ADAMS site:


Larry L. Humphries, PhD
MELCOR Principal Investigator

The Cooperative Severe Accident Research Program (CSARP) technical review meeting, MELCOR Code Assessment Program (MCAP) meeting, MELCOR User Workshop, and International MACCS User Group (IMUG) meeting will be held in September 2017 at the Marriott Residence Inn Bethesda Downtown in Bethesda, Maryland.

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