基于Taurus软件的氡暴露剂量转换系数评估研究

辐射防护 ›› 2026, Vol. 46 ›› Issue (1): 68-75.

基于Taurus软件的氡暴露剂量转换系数评估研究

朱邦勤¹, 张磊², 郭秋菊¹

1.北京大学物理学院技术物理系,北京 100871;
2.中国人民解放军军事科学院防化研究院,北京 102205

收稿日期:2025-09-24 出版日期:2026-01-20 发布日期:2026-02-06
通讯作者: 张磊。E-mail:swofely@pku.edu.cn
作者简介:朱邦勤(2001—),男,2023年毕业于北京大学物理学院物理学专业,现为北京大学物理学院技术物理系在读硕士研究生。E-mail: 2301110147@stu.pku.edu.cn
基金资助:
国家自然科学基金面上项目(12275008)。

Research on assessment of dose conversion factors for radon exposure based on the Taurus software

ZHU Bangqin¹, ZHANG Lei², GUO Qiuju¹

1. Department of Technical Physics, School of Physics, Peking University, Beijing 100871;
2. State Key Laboratory of NBC Protection for Civilian, Beijing 102205

Received:2025-09-24 Online:2026-01-20 Published:2026-02-06

摘要/Abstract

摘要： 以英国卫生安全局发布的最新内照射软件Taurus为研究对象,探讨并验证了该软件在计算氡暴露剂量转换系数上的适用性。通过计算比较Taurus与之前被国内外广泛应用的内照射软件LUDEP和IMBA在计算氡子体呼吸系统沉积份额的差异,主要原因是各软件采用了不同呼吸道模型;采用Taurus软件计算了²²²Rn+²²⁰Rn共5个子体各单个子体在不同粒径分布等条件下的剂量转换系数,结果表明,²²⁰Rn子体剂量转换系数最高约为²²²Rn子体的6倍,未结合态氡子体对剂量转换系数贡献大于结合态氡子体;最后使用Taurus软件计算了典型室内室外环境中的氡剂量转换系数,验证了该软件在氡暴露剂量转换系数估算中的准确性和实用性。与国际放射防护委员会(ICRP)137号报告中氡剂量转换系数高度吻合的计算结果表明,Taurus软件不仅功能全面,输入参数选择自由度高,而且在呼吸道模型、消化道模型和相关生物动力学参数上均与ICRP最新数据库同步。

关键词: 氡暴露, 剂量转换系数, 剂量学模型, Taurus软件, 典型环境

Abstract: Estimation of radon exposure dose is a main component of internal radiation dose assessment, in which the dose conversion factor (DCF) serves as a key parameter. This study focuses on Taurus, the latest internal radiation software released by the UK Health Security Agency, and investigates and validates its application in calculating DCFs. First, by comparing the differences in calculating the deposition fractions of radon progeny in the respiratory system between Taurus and the previously widely used internal radiation software LUDEP and IMBA, it is found that the primary cause of these differences lies in the distinct respiratory tract models employed by each software. Second, Taurus is utilized to calculate DCFs for each of the five progeny of ²²²Rn and ²²⁰Rn under various conditions, such as different particle size distributions. The results indicate that the DCF for ²²⁰Rn progeny is approximately six times higher than that for ²²²Rn progeny, and the contribution of unattached radon progeny to the DCF is greater than that of attached radon progeny. Finally, Taurus is applied to calculate a series of DCFs in typical indoor and outdoor environments. The results, which show a high consistency with the DCFs in the International Commission on Radiological Protection (ICRP) Publication 137, demonstrate that Taurus not only offers comprehensive functionality and a high degree of flexibility in selecting input parameters but is also aligned with the latest ICRP database in terms of respiratory tract models, gastrointestinal tract models, and related biokinetic parameters.

Key words: radon exposure, dose conversion factor, dosimetric model, Taurus software, typical environmental conditions

中图分类号:

TL72

朱邦勤, 张磊, 郭秋菊. 基于Taurus软件的氡暴露剂量转换系数评估研究[J]. 辐射防护, 2026, 46(1): 68-75.

ZHU Bangqin, ZHANG Lei, GUO Qiuju. Research on assessment of dose conversion factors for radon exposure based on the Taurus software[J]. RADIATION PROTECTION, 2026, 46(1): 68-75.

参考文献

[1] UNSCEAR. Sources of ionizing radiation[R]. UNSCEAR 2000 Report Volume Ⅰ.New York: United Nations, 2000.
[2] ICRP. Radiological protection against Radon exposure[R]. ICRP Publication 126.Ottawa: ICRP, 2014.
[3] 李宏钊. 室内²²²Rn/²²⁰Rn子体行为研究[D]. 北京: 北京大学, 2012.
[4] 李强. 基于LUDEP程序的放射性核素所致剂量计算[D]. 衡阳: 南华大学, 2007.
[5] Birchall A, Bailey M R, James A C. A lung dose evaluation program[J]. Radiation Protection Dosimetry, 1991, 38(1/3): 167-174.
[6] Birchall A, Marsh J, Davis K, et al. Using IMBA professional plus to estimate intakes and doses[C] //Proceedings of 7th International Symposium of the Society for Radiological Protection. Cardiff:[s.n] , 2005: 43-48.
[7] ICRP. Coccupational intakes of radionuclides: Part 1[R]. ICRP Publication 130.Ottawa: ICRP, 2019.
[8] Birchall A, Puncher M, Marsh J W, et al. IMBA professional plus: A flexible approach to internal dosimetry[J]. Radiation Protection Dosimetry, 2007, 125(1/4): 194-197.
[9] 赵超, 张磊, 郭秋菊, 等. 室内氡子体有效剂量转换系数的影响因素分析[J]. 辐射防护, 2011, 31(4): 241-246.
ZHAO Chao, ZHANG Lei, GUO Qiuju, et al. Study on influence parameters of effective dose conversion factors in indoor environment[J]. Radiation Protection, 2011, 31(4): 241-246.
[10] 孙昌昊. 环境中未结合态氡子体测量方法及其特征参数现场调查研究[D]. 衡阳: 南华大学, 2021.
[11] Marsh J W, Birchall A. Sensitivity analysis of the weighted equivalent lung dose per unit exposure from radon progeny[J]. Radiation Protection Dosimetry, 2000, 87(3): 167-178.
[12] Kojima H, Abe S. Measurements of the total and unattached Radon daughters in a house[J]. Radiation Protection Dosimetry, 1988, 24(1/4): 241-244.
[13] Reineking A, Porstendorfer J. “Unattached” fraction of short-lived Rn decay products in indoor and outdoor environments[J]. Health Physics, 1990, 58(6): 715-727.
[14] Barber D E.Comparative dosimetry of radon in mines and homes[J].Journal of Aerosol Science, 1992, 23.DOI:10.1016/0021-8502(92)90022-N.
[15] 赵桐可, 郑平辉, 阿不都莫明·卡地尔, 等. 氡子体比的现场测量及其对剂量转换系数的影响[J]. 原子能科学技术, 2015, 49(9): 1705-1710.
ZHAO Tongke, ZHENG Pinghui, Abdumomin K, et al. Field measurement of activity ratio of radon progeny and its influence on dose conversion factor[J]. Atomic Energy Science and Technology, 2015, 49(9): 1705-1710.
[16] ICRP. Human respiratory tract model for radiological protection[R]. ICRP Publication 66.Ottawa: ICRP, 1994.
[17] 张磊, 郭秋菊. 气溶胶粒径分布对肺模型评价氡子体有效剂量的影响[J]. 核电子学与探测技术, 2008, 28(6): 1203-1208.
ZHANG Lei, GUO Qiuju. Influence of the aerosol size distribution on effective dose from radon progeny using lung model[J]. Nuclear Electronics & Detection Technology, 2008, 28(6): 1203-1208.
[18] ENDO Akira, YAMAGUCHI Yasuhiro. Dose coefficients for intakes of radionuclides by workers; coefficients for radionuclides not listed in ICRP Publication 68[R]. Tokai-mura:JAERI,1999.
[19] ICRP.Occupational intakes of radionulides: Part 3[R]. ICRP Publication 137.Ottawa: ICRP, 2017.
[20] Ishikawa T, Tokonami S, Yonehara H, et al. Effects of activity size distribution on dose conversion factor for radon progeny[J]. Japanese Journal of Health Physics, 2001, 36(4): 329-338.
[21] Ishikawa T, Tokonami S, Nemeth C. Calculation of dose conversion factors for thoron decay products[J]. Journal of Radiological Protection, 2007, 27(4): 447-456.