硼铝复合材料热中子屏蔽性能分析

Abstract

Abstract: Boron-aluminum composite material has been widely studied due to its relatively simple preparation process, good mechanical properties, low price of raw material. Boron-aluminum composite material has been used as thermal neutron absorbing materials in many fields. In this paper, the thermal neutron shielding performance of boron-aluminum composites was analyzed by theoretical formula, MCNP software and experimental measurement. Theoretical calculations show that boron is better as a composite additive than boron carbide when the additive content is the same only in terms of thermal neutron absorption properties of the material. Through simulation calculation of MCNP program and through experimental measurement, it is found that the boron-aluminum composite material has excellent neutron absorption performance with neutron energy less than 10^-7 MeV.

Key words: boron-aluminum composite material, thermal neutron absorption performance, MCNP program, experimental measurement

CLC Number:

TL75+2.3

LI Changyuan, XIA Xiaobin, YANG Zhongtian, LIU Yuchen, ZHANG Zhihong, WANG Jianhua, CAI Jun, HU Jifeng. Analysis of thermal neutron shielding performance ofboron-aluminum composite material[J].RADIATION PROTECTION, 2021, 41(1): 39-43.

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Analysis of thermal neutron shielding performance ofboron-aluminum composite material

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