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Study on Composite Material for Shielding Mixed Neutron and $\gamma$-Rays

2008; Institute of Electrical and Electronics Engineers; Volume: 55; Issue: 4 Linguagem: Inglês

10.1109/tns.2008.2000800

1558-1578

Huasi Hu, Qunshu Wang, Juan Qin, Yuelei Wu, Tiankui Zhang, Xie Zhongsheng, Xinbiao Jiang, Guoguang Zhang, Hu Xu, Xiangyang Zheng, Jing Zhang, Wenhao Liu, Zhenghong Li, Bo‐Ping Zhang, Linbo Li, Zhaohui Song, Xiaoping Ouyang, Jun Zhu, Yaolin Zhao, Xiaoqin Mi, Zhengping Dong, Cheng Li, Zhenyu Jiang, Yuanping Zhan,

Nuclear Physics and Applications

Optimized lightweight, compact and high temperature sustaining shielding materials for neutron and gamma radiation were developed by genetic algorithms (GA) combined with the Monte Carlo N-Particle (MCNP) code. A series of samples were designed according to the method. Deep penetration tests by the MCNP code were completed. The results show that the designed samples have more advantages related to the radiation shielding effects in comparison with PB202 and KRAFTON-XP3, especially the Cakes with multi-layers structures of the Fe-interlayer-Pb have excellent performance. Taking into account the ratios designed of components among elements in the material, the manufacturing process of polymer with nano-TiO 2 was studied experimentally by differential scanning calorimetry (DSC). Several samples have been tested. The attenuation experiments on the samples were carried out using tandem electrostatic accelerator neutron source, spontaneous fission neutron source of 252 Cf and gamma-rays source of 60 Co. The experimental results verify the correctness of optimal design and craft. The Cakes are quite suitable for applications in the practices of nuclear science and technology.