成年参考人伤口摄入典型锕系元素的内照射有效剂量系数计算

辐射防护 ›› 2025, Vol. 45 ›› Issue (4): 355-361.

成年参考人伤口摄入典型锕系元素的内照射有效剂量系数计算

雷洁瑛, 徐明, 李玉祥, 李世龙, 张政, 赵渊中, 张洋

西北核技术研究所,西安 710024

收稿日期:2024-09-04 发布日期:2025-07-28
通讯作者: 张洋。E-mail:307592155@qq.com
作者简介:雷洁瑛(1990—),女,2012年毕业于华北电力大学应用物理学专业,2015年毕业于中国科学技术大学核科学与技术专业,获硕士学位,工程师。E-mail:xhsleijy@126.com

Calculation of effective dose coefficients for intake of typical actindes via contaminated wound for reference adults

LEI Jieying, XU Ming, LI Yuxiang, LI Shilong, ZHANG Zheng, ZHAO Yuanzhong, ZHANG Yang

Northwest Institute of Nuclear Technology,Xi'an 710024

Received:2024-09-04 Published:2025-07-28

摘要/Abstract

摘要： 为了评估成年参考人由伤口摄入锕系元素的内照射剂量,本文将美国国家辐射防护与测量委员会(NCRP)156号报告中的伤口模型、国际放射防护委员会(ICRP)137、141号等出版物中的元素周身模型以及ICRP 100号出版物中的消化道模型相结合,按照ICRP 103号出版物的理论方法,确定了由伤口摄入典型锕系元素对应于不同摄入物质类别的有效剂量系数,包括 ²²⁸Th、²³⁰Th、²³²Th、²³⁴U、²³⁵U、²³⁸U、²³⁷Np、 ²³⁸Pu、²³⁹Pu、²⁴⁰Pu、²⁴¹Pu、 ²⁴¹Am、 ²⁴²Cm、²⁴⁴Cm和 ²⁵²Cf。结果表明,基于新生物动力学模型、吸收分数和剂量学模型的共同影响,新剂量系数比旧剂量系数小约23%~73%,可为国内准确评估伤口摄入锕系元素的内照射损伤提供依据。

关键词: 伤口, 内照射, 锕系元素, 有效剂量系数

Abstract: To assess the internal radiation dose in adult reference individuals due to the intake of actinides through wounds, this study integrates the wound model from the NCRP 156 Peport, the systemic models from ICRP Publications 137 and 141, and the human alimentary tract model from ICRP Publication 100. Following the theoretical methods of ICRP Publication 103, the effective dose coefficients for typical actinides taken in through wounds, corresponding to different intake categories, were determined. These actinides include ²²⁸Th, ²³⁰Th, ²³²Th, ²³⁴U, ²³⁵U, ²³⁸U, ²³⁷Np, ²³⁸Pu, ²³⁹Pu, ²⁴⁰Pu, ²⁴¹Pu, ²⁴¹Am, ²⁴²Cm, ²⁴⁴Cm, and ²⁵²Cf. The results show that the new dose coefficients, influenced by the combined effects of the new biokinetic models, absorption fractions and dosimetric models, are approximately 23% to 73% lower than the old dose coefficients. This provides a basis for accurately assessing the internal radiation damage caused by the intake of actinides through wounds in domestic settings.

Key words: wounds, internal radiation, actinides, effective dose coefficients

中图分类号:

R144.1

雷洁瑛, 徐明, 李玉祥, 李世龙, 张政, 赵渊中, 张洋. 成年参考人伤口摄入典型锕系元素的内照射有效剂量系数计算[J]. 辐射防护, 2025, 45(4): 355-361.

LEI Jieying, XU Ming, LI Yuxiang, LI Shilong, ZHANG Zheng, ZHAO Yuanzhong, ZHANG Yang. Calculation of effective dose coefficients for intake of typical actindes via contaminated wound for reference adults[J]. RADIATION PROTECTION, 2025, 45(4): 355-361.

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