热中子防护Gd/Al复合材料的设计

doi:10.11896/cldb.20070263

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Abstract The rapid development of nuclear power facility requires the shielding material to be light-weight, and strong in structure,which draws resea-chers' attention to Al based material for its characteristic.This paper focuses on the thermal neutron shielding performance of Al/Gd composites, the thermal neutron transmittance of the composites with different functional particles were computed with Monte Carlo method. By comparing the result ,we conclude that Gd particle does a better job than B₄C in improving the shielding performance.Also, we find the content of Gd in the Gd/Al material should not go beyond 6% when the neutron shielding material has a thickness of 2 mm. Finally, we successfully apply this research to optimizing the design for spent fuel storage rack material and conclude that the best thickness and Gd content is 3 mm and 4% respectively.

Key words： Gd/Al composite material thermal neutron B₄C Monte Carlo method

Published: 25 November 2021 Online: 2021-12-13

CLC number:

TL77

Fund:“13th Five-year Plan” Nuclear Energy Development and Scientific Research (the fifth batch) Project.

About author: Tianhan Xuis currently pursuing a master's degree in engineering at the School of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, mainly engaged in the field of using Monte Carlo simulation to optimize the design of radiation shielding materials.
Yaodong Daireceived his Ph. D. degree in June 2003 from Nanjing University. He is currently a professor in Nanjing University of Aeronautics and Astronautics. His research interests are nuclear radiation physics and nuclear analysis technology applications, radiation modification of materials and radiation shielding materials research and development.

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Cite this article:

XU Tianhan,ZHANG Ye,DAI Yaodong. The Design of Gd/Al Composite Material for Thermal Neutron Protection[J]. Materials Reports, 2021, 35(22): 22121-22124.

URL:

http://www.mater-rep.com/EN/10.11896/cldb.20070263 OR http://www.mater-rep.com/EN/Y2021/V35/I22/22121

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