MCNP6.2 (Monte Carlo N-Particle) is for the general public . Because it is export-controlled software, it must be officially requested and licensed through the Radiation Safety Information Computational Center ( RSICC ) at Oak Ridge National Laboratory. Official Process to Obtain MCNP6.2
: Because it is export-controlled, your request will undergo a background check. You must provide a detailed End-Use Statement explaining how you will use the software.
Search for MCNP6.2 (often bundled in packages like CCC-844).
If you are a student or researcher at a university or a government lab, your institution may already have a site license. Check with your department head or IT safety officer before applying individually, as this can save you time and potential licensing fees. 3. International Requests
If you are looking for MCNP6.2, you’ve likely realized it’s the gold standard for modeling nuclear processes. However, because it deals with sensitive nuclear data, it is strictly regulated by the U.S. Department of Energy (DOE).
If you are a student, hobbyist, or work for a company without the budget for an MCNP license, there are excellent, free, open-source alternatives available: