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在非均辐射场中用于职业眼镜剂量的物理幻影的开发

Jeongin Kim¹, Hyunjun Na, Seonghoon Cho

¹Radiation Health Institute, Korea Hydro & Nuclear Power Co., Ltd.

|August 29, 2025

概括

一种新的聚甲基酸盐 (PMMA) 幻影被开发用于眼镜剂量监测. 这种实用工具有助于评估在复杂环境中的辐射暴露,特别是对于核电站工人来说.

科学领域:

辐射剂量计
职业健康物理
医学物理

背景情况:

国际辐射保护委员会 (ICRP) 降低了职业眼镜剂量限制,需要改进监测方法.
对于在职场中遇到的复杂和不均的辐射场,现有的方法可能不足.

研究的目的:

在具有挑战性的辐射环境中开发和验证物理幻影用于精确的眼镜剂量监测.
为评估对镜片的职业辐射暴露提供一个实用的工具.

主要方法:

基于经过验证的眼睛模型设计了一个幻影,以推导镜片剂量转换系数.
蒙特卡洛模拟用于评估材料特性,选择聚甲基酸 (PMMA) 以其有利的特性.
热发光剂量计 (TLD) 芯片嵌入在PMMA幻影中,用于在137Cs参考场下进行剂量测量.

主要成果:

在各种光子能量和辐射角度计算了PMMA幻影的剂量转换系数.
在幻影中使用TLD的测量结果与模拟结果一致.
幻影在评估在非均辐射场中的透镜剂量方面表现出实用性.

结论:

开发的PMMA幻影是职业眼镜剂量评估的可行和实用解决方案.
这种幻影可以在复杂的辐射场中进行准确的剂量测量,比如核电站.
该研究验证了PMMA幻影的使用,用于监测眼镜的辐射暴露.

关键词:

国际辐射保护委员会剂量评估接触,职业一个幻影

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