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MCAM: CAD/Image-Based Modeling Program for Nuclear and Radiation System


MCAM (Monte Carlo Modeling Interface Program) has been developed as an integrated interface program between commercial CAD software and Monte Carlo (MC) radiation transport simulation codes (MCNP, TRIPOLI, et al). In one hand, analyzers can conveniently and rapidly create the MC models of a complex and large-scale nuclear device based on its CAD model. In the other hand, users can visualize the various existing MC input files for validating and further updating.

The development of MCAM has been started since 1999, and more than 100 person-years were invested.


MCAM is not only an efficient tool for MC modeling, but also a quality assurance tool for nuclear analysis, which can significantly reduce the manpower needed for modeling of complex geometry and play even more important roles in nuclear analysis.

MCAM version 4.8 implemented the bi-directional conversion between CAD geometry models and MCNP code calculation input files and is now being used in over 1000 international institutes and companies in the world. MCAM version 5.1 was developed for TRIPOLI code and has been used in CEA, France. The implementation for the automatic modeling for Geant4 and FLUKA code is underway.




Good compatibility with various kinds of commercial CAD systems.
MCAM is compatible with the common intermediate formats (SAT, STEP, IGES) of CAD model which are supported by general commercial CAD systems (CATIA, AutoCAD, UG, et al).
MCAM supports the generation and visualization of input files of MCNP, TRIPOLI and VisualBUS (neutronics code developed by FDS Team). The support for the FLUKA and Geant4 code is under way.
Independent intellectual property right.
Adopt component-based architecture and object-oriented technologies.
Based on high performance 3D model rendering framework.