DAGMC: Direct Accelerated Geometry Monte Carlo


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NASA habitat module irradiated by 1 GeV protons, FluDAG
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PPPL Fusion Nuclear Science Facility (FNSF)
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Advanced Test Reactor (ATR) cross section
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Proton flux in Spallation Neutron Source (SNS), DAG-MCNP6
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Fusion system blanket shield module, DAG-MCNP5
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Frascati Neutron Generator (FNG) SDR geometry, FluDAG
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Protons being deflected by magnetic field, interacting on nickel block, FluDAG
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Proton irradiation of NASA habitat module, DagGeant4
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Nuclear heating behind the ITER blanket modules including the presence of ELM coils, DAG-MCNP5
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Tritium reaction rate in PPPL ST-FSNF, DAG-MCNP5
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Neutron flux in FNG SDR geometry, DAG-MCNP5


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Direct Accelerated Geometry Monte Carlo (DAGMC) is a software package that allows users to perform Monte Carlo radiation transport directly on CAD models.

DAGMC has been integrated into a variety of Monte Carlo radiation codes including MCNP5, MCNP6, Geant4, FLUKA, Tripoli4, and Shift. There are also efforts planned to integrate DAGMC into other codes such as Serpent2, OpenMC, Phits, and Frensie.

DAGMC currently relies on using the solid modeling software Cubit or its commercial counterpart, Trelis, to prepare solid models. These packages can be used to import CAD models from other tools such as SolidWorks, CATIA, etc., or to create geometry from scratch. DAGMC also relies on Trelis/Cubit to assign materials and other geometry-related information.