《《Benchmarking of MCAM 4.0 with ITER 3D Model》.pdfVIP

Fusion Engineering and Design 82 (2007) 2861–2866 Benchmarking of MCAM 4.0 with the ITER 3D model Y. Li ∗, L. Lu, A. Ding, H. Hu, Q. Zeng, S. Zheng, Y. Wu Institute of Plasma Physics, Chinese Academy of Sciences, P.O. Box 1126, Hefei, Anhui 230031, China Received 31 July 2006; received in revised form 13 February 2007; accepted 13 February 2007 Available online 6 April 2007 Abstract Monte Carlo particle transport simulations are widely employed in fields such as nuclear engineering, radiotherapy and space science. MCAM (Monte Carlo Automatic Modeling System) is an integrated environment for CAD model preprocessing, accurate bi-directional conversion between CAD/MCNP models, neutronics property processing and geometry modeling developed by FDS Team, China. The ITER (International Thermonuclear Experimental Reactor) benchmark model is set by ITER International Team (IT) to compare the CAD/MCNP programs being developed in the ITER participant teams. The processing procedure of the benchmark model with MCAM will be presented in this paper, which includes the geometric model processing, neutronics property processing, converting to MCNP input file, calculating with MCNP and analysis. The neutron wall loading distribution on the first wall will be given and compared with the one of ITER basic model. © 2007 Elsevier B.V. All rights reserved. Keywords: MCNP; CAD; Preprocessing; Modeling 1. Introduction tion of MCNP. With the progress of computer science, especially computer graphics and CAD technology, MCNP [1,2] is a general and powerful Monte Carlo 3D geom