对于医疗X射线应用的有效屏蔽元素和氧化物
H M Badran1, M M Mourad1, T Sharshar2
1Physics Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt.
概括
研究人员确定了替代材料,如,和氧化物,用于无X射线屏蔽. 这些材料在医学成像应用中提供了较小的质量和厚度,提高了安全性和效率.
科学领域:
- 材料科学 材料科学 材料科学
- 医学物理 医学物理
- 辐射屏蔽 辐射屏蔽
背景情况:
- (Pb) 是用于X射线屏蔽的传统材料,但引起了环境和健康方面的担忧.
- 开发有效,轻量化和更薄的X射线屏蔽替代品对于医学成像技术的进步至关重要.
研究的目的:
- 评估原子号为55-83的元素及其氧化物作为X射线屏蔽的潜在替代品.
- 评估各种医疗应用的广泛能量范围 (10 keV至500 keV) 的屏蔽效果.
主要方法:
- 为候选元素和氧化物计算的Pb等价质量和厚度比.
- 比较宽光束和窄光束衰减,以及单能光谱与X射线管谱.
- 作为参考,对0.5mm Pb进行测量和计算.
主要成果:
- (Ta), (W) 和/氧化物适合进行乳房摄影 (15 keV).
- (Sm),新 (Nd), (Bi) 和各种氧化物是有效的牙X射线屏蔽 (约. 50 keV) 的电压.
- /氧化物是CT扫描的首选,而Bi和W则适用于高能X射线.
结论:
- 使用55-83元素及其氧化物的无X射线屏蔽解决方案是可行的.
- 特定材料在不同的医学成像模式中表现出最佳性能.
- 这些发现支持开发更安全,更有效的X射线屏蔽技术.
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