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金属聚合物和双金属聚合物无辐射屏蔽的效率有多高?

Zaker Salehi¹, Mansour Tayebi Khorami¹

¹Department of Radiation Sciences, School of Paramedical Sciences, Yasuj University of Medical Sciences, Yasuj, Iran.

Journal of medical radiation sciences

|October 24, 2023

概括

使用金属化合物和聚乙烯 (PVC) 的新型无防辐射屏蔽显示出有希望的有效替代. 具体来说,氧化物-硫酸-PVC和-硫酸-PVC为诊断X射线提供了有效的辐射减弱.

科学领域:

材料科学材料科学材料科学
医学物理医学物理
辐射保护辐射保护

背景情况:

传统的用于电离辐射减弱的盾很重,并带来了回收挑战.
目前正在开发更轻,可回收和更高效的无辐射屏蔽材料.
包含金属化合物的聚合物复合材料为提供了潜在的替代品.

研究的目的:

评估新型无材料的辐射屏蔽能力.
为了比较单重和双重金属化合物聚合物复合材料对屏蔽的有效性.

主要方法:

一个基于蒙特卡洛 (MC) 的BEAMnrc代码模拟了飞利浦X射线机器.
该MC模型使用IPEM报告78标准进行了验证.
评估了各种金属化合物-聚乙烯 (PVC) 复合材料 (如BaSO4-PVC,Bi2O3-PVC,Sn-PVC,W-PVC,Bi2O3-BaSO4-PVC,Bi2O3-Sn-PVC,W-Sn-PVC,W-BaSO4-PVC) 的屏蔽效率,通过测量水幻体中吸收的剂量并将其与0.5毫米纯进行比较.

主要成果:

氧化物-硫酸盐-PVC和-硫酸盐-PVC复合材料在大多数测试能量中表现出高效率.
氧化-PVC在60keV时显示出有效性.
在诊断X射线能量范围内,氧化石-硫酸盐-PVC双金属-PVC屏蔽的性能优于纯.

结论:

单金属PVC和双金属PVC屏蔽是的可行的替代品,用于辐射保护.
在PVC复合材料中,低原子数和高原子数金属的组合提高了屏蔽性能.
这些无材料为辐射防护服提供了更好的性能.

关键词:

防盾的使用方法没有的前套.辐射保护辐射保护辐射保护

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