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Numerical simulation and experimental study of PbWO_4/EPDM and Bi_2WO_6/EPDM for the shielding of γ-rays

Chinese Physics C 2016年第8期40卷 185-190页

作者：宋驰郑剑张全平李银涛李迎军周元林 State Key Laboratory Cultivation Base for Nonmetal Composites and Functional Materials Southwest University of Science and Technology School of Materials Science and Engineering Southwest University of Science and Technology

The MCNP5 code was employed to simulate the γ-ray shielding capacity of tungstate composites. The experimental results were applied to verify the applicability of the monte carlo program. PbWO4 and Bi2WO6were prepared and added into ethylene propylene diene monomer （EPDM） to obtain the composites, which were tested in the y-ray shielding. Both the theoretical simulation and experiments were carefully chosen and well designed. The results of the two methods were found to be highly consistent. In addition, the conditions during the numerical simulation were optimized and double-layer γ-ray shielding systems were studied. It was found that the γ-ray shielding performance can be influenced not only by the material thickness ratio but also by the arrangement of the composites.

关键词： γ-ray shielding monte carlo program numerical simulation

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