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- Title
铅硼聚乙烯复合材料的制备及辐射屏蔽机制.
- Authors
张 坤; 朱 波; 杜长斌; 韩 毅
- Abstract
In order to effectively protect personnel and equipment from radiation hazards and expand the application range of materials, the preparation and radiation shielding mechanism of lead boron polyethylene composite materials are studied. Preprocess and modify boron containing compounds, mix them with lead sand and polyethylene to prepare lead boron polyethylene composite materials. Select Cs radiation source and use Monte Carlo neutron photon transport program as the simulation program to verify the shielding mechanism. Construct a composite material model and Cs radiation source model, calculate the neutron shielding coefficient, consider the density and thickness of the composite material, and simulate the shielding performance of radiated X-rays under different radiation energies. The experimental results show that when the neutron coefficient decreases, increasing the density of the prepared composite material leads to an increase in the shielding thermal neutron coefficient; When the density of the composite material is 5. 9 g/cm3 and the thickness is 4. 5 cm, it can meet the requirements of radiation shielding mechanism
- Subjects
COMPOSITE materials; RADIATION sources; SIMULATION software; THERMAL shielding; POLYETHYLENE; RADIATION shielding
- Publication
Chinese Journal of Applied Chemistry, 2024, Vol 41, Issue 8, p1168
- ISSN
1000-0518
- Publication type
Article
- DOI
10.19894/j.issn.1000-0518.240045