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作为Pb-PVC的替代品,轻便和灵活的无围的特征
Mansour Tayebi Khorami1, Zaker Salehi1
1Department of Radiation Sciences, School of Paramedical Sciences, Yasuj University of Medical Sciences, Yasuj, Iran.
Journal of applied clinical medical physics
|November 27, 2025
概括
使用和合金复合材料的新型无辐射屏提供与围相似的保护,但显著更轻,更灵活. 这些先进的材料减少了医疗保健专业人员的压力,并提高了X射线程序期间的安全性.
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:
- 传统的围由于重量,不灵活性和毒性而带来风险.
- 开发更轻,更灵活,更无毒的辐射屏蔽对于医疗保健专业人员来说至关重要.
- 复合材料中含有和等元素的复合材料显示出作为无替代品的前景.
研究的目的:
- 评估无辐射屏蔽材料,包括 (W), (Bi) 等.
- 确定使用这些新型复合式围可以实现的减重.
- 评估辐射减弱特性,以开发更安全,更轻,更灵活的X射线屏蔽.
主要方法:
- 在0.35和0.5毫米的等效率下,无围的计算质量和厚度.
- 在使用MCNP的诊断能量范围 (80,100,120kVp) 中模拟X射线光谱.
- 采用Python编码来准确确定等效厚度,并使用SpekPy验证了光谱.
主要成果:
- 增加0.15毫米的等效率提高了30%-50%的盾牌质量.
- W-Sn-Gd2O3-PVC和Bi2O3-Sn-Gd2O3-PVC复合材料显示出有利的低质量,具有竞争力的保护.
- 在100和120kVp时,W-Sn-Gd2O3-PVC提供了最低的质量,而Bi2O3-BaSO4-PVC和W-BaSO4-PVC是最重的.
结论:
- 无屏蔽,特别是W-Sn-Gd2O3-PVC和Bi2O3-Sn-Gd2O3-PVC,提供足够的辐射保护.
- 这些复合材料提供了显著的人体工程学益处,减少了临床工作人员的肌肉骨应变.
- 在诊断环境中,无围是一种可行的,比传统的围更安全的替代品.
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