Research and Implementation of a geometry coupled visual analysis system for MCNP

The post-processing capability of the current MCNP is not enough to effectively and sufficiently analyze calculation results of complex problems. In the paper, a geometry coupled visual analysis system for MCNP was self-developed in FDS Team by using scientific visualization technology, GPU (graphics processing unit)visual programming technology, and the reversion engine of MCAM. The visual analysis system was implemented to support data extraction and manipulation based on graphics user interface, three-dimensional plotting of tally results, and visual analysis of the results with geometries. And the system has been tested by many de facto cases, such as ITER. Testing results showed that the system provided an intuitively and effectively visual analysis approach for the post-processing of MCNP and obviously enhanced the analysis efficiency. (authors)