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<p>With the development of nuclear-powered mobile platforms, the demand for lightweight and high-efficiency neutron shielding materials is becoming increasingly urgent. In this study, the modified-SmB<sub>6</sub> + HDPE composite was prepared. We calculated its shielding performance against neutrons of different energies using MC simulation. The thermal neutron dose shielding rate of this composite with a thickness of 1&#xa0;cm was increased by 5.8% and 2.4% respectively compared with Sm<sub>2</sub>O<sub>3</sub> + HDPE and boron polyethylene of the same thickness. The dose shielding rate of the material with a thickness of 10&#xa0;cm for <sup>241</sup>Am-Be neutrons was 86.18%. The experimental data were in good agreement with the simulation data, with a minimum deviation of 7.07%. This composite has broad prospects as a lightweight neutron shielding material.</p>

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Design, preparation and performance of modified-SmB6 + HDPE neutron shielding composite

  • 期刊论文

  • 发表日期：

    2025年11月24日

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  • Zifu Hao,
  • Junjun Gong,
  • Aifei Xie,
  • Chengqiang Liang

摘要

With the development of nuclear-powered mobile platforms, the demand for lightweight and high-efficiency neutron shielding materials is becoming increasingly urgent. In this study, the modified-SmB6 + HDPE composite was prepared. We calculated its shielding performance against neutrons of different energies using MC simulation. The thermal neutron dose shielding rate of this composite with a thickness of 1 cm was increased by 5.8% and 2.4% respectively compared with Sm2O3 + HDPE and boron polyethylene of the same thickness. The dose shielding rate of the material with a thickness of 10 cm for 241Am-Be neutrons was 86.18%. The experimental data were in good agreement with the simulation data, with a minimum deviation of 7.07%. This composite has broad prospects as a lightweight neutron shielding material.