闭路循环氡子体测试装置的设计与工况模拟

doi:10.27045/j.1000-8187.202605013

摘要/Abstract

摘要： 本文设计了一套基于闭路循环的氡补偿测试装置,建立了相应的调控方法。通过对稳态条件和瞬变过程的模拟研究,揭示了关键参数的调控规律,提出了“气溶胶粒子浓度(C_p)→循环过滤流量(Q)→氡浓度(C_Rn)”的调控流程。通过该方法,给出了多目标工况的调控方案及参数,其中平衡因子(F)范围为0.10~0.35,平衡当量浓度(EEC)范围为140~700 Bq·m^-3,非结合态份额f_p范围为15%~50%,基本覆盖了典型测试需求,为今后氡补偿测试的实际调控提供了参考。

关键词: 氡子体, 气溶胶, 平衡当量浓度, 平衡因子, 非结合态份额

Abstract: This study presents a closed-loop radon progeny test system for evaluating radon compensation performance and establishing a systematic method for controlling the test conditions. Steady-state and transient simulations were conducted to determine how key parameters affect the target operating conditions. A sequential three-variable control procedure was proposed. The aerosol particle concentration (C_p), filtration flow rate (Q), and radon concentration (C_Rn) were adjusted in this order. The procedure was used to determine control schemes and parameter settings for multiple target conditions. These conditions covered equilibrium factors (F) from 0.10~0.35, equilibrium equivalent concentrations (EEC) from 140 to 700 Bq·m^-3, and unattached fractions (f_p) from 15% to 50%. These ranges generally cover typical testing requirements and provide practical guidance for controlling radon compensation tests.

Key words: radon progeny, aerosol, equilibrium equivalent concentration, equilibrium factor, unattached fraction

中图分类号:

TL811

杨屹, 畅翔, 张富国, 张艳婷, 马弢, 商洁. 闭路循环氡子体测试装置的设计与工况模拟[J]. 辐射防护, 2026, 46(5): 486-493.

YANG Yi, CHANG Xiang, ZHANG Fuguo, ZHANG Yanting, MA Tao, SHANG Jie. Design and operating condition simulation of a closed-loop radon progeny test system[J]. RADIATION PROTECTION, 2026, 46(5): 486-493.

参考文献

[1] 卢正永. 气溶胶科学引论[M]. 北京: 原子能出版社, 2000.
[2] 卢正永. 放射性气溶胶资料汇编[G]. 太原: 中国辐射防护研究院, 2010: 24.
[3] ISO 16639:2017 Surveillance of the activity concentrations of airborne radioactive substances in the workplace of nuclear facilities[S].
[4] IEC 61578:2001 Radiation protection instrumentation-calibration and verification of the effectiveness of radon compensation for alpha/beta aerosol monitors[S].
[5] 闫钇帆, 梁珺成, 杨志杰, 等. 标准测氡仪的量值溯源方法研究[J]. 计量学报, 2020, 41(2): 250-256.
Yan Yifan, Liang Juncheng, Yang Zhijie, et al. Research on the method of traceability the value of standard Radon monitor[J]. Acta Metrologica Sinica, 2020, 41(2): 250-256.
[6] 何林锋, 徐一鹤, 唐方东. 标准氡室氡体积活度测量的影响因素探讨[J]. 核电子学与探测技术, 2013, 33(10): 1199-1202.
He Linfeng, Xu Yihe, Tang Fangdong. An analysis on influence factors of radon concentration measurement in the standard radon chamber[J]. Nuclear Electronics & Detection Technology, 2013, 33(10): 1199-1202.
[7] 丘寿康, 周剑良, 肖更生, 等. 中国第一个氡及氡子体刻度和试验装置[J]. 铀矿冶, 1991, 10(4): 30-34.
Qiu Shoukang, Zhou Jianliang, Xiao Gengsheng, et al. The first radon and radon progeny calibration and test facility in China[J]. Uranium Mining and Metallurgy, 1991, 10(4): 30-34.
[8] 刘良军, 周剑良, 孟冶成, 等. 氡室氡浓度调控系统的研究[J]. 核技术, 2007, 30(6): 553-556.
Liu Liangjun, Zhou Jianliang, Meng Yecheng, et al. Radon concentration control system of radon chamber[J]. Nuclear Techniques, 2007, 30(6): 553-556.
[9] 席雅婷, 商洁, 李建伟, 等. 一种新型氡测量仪检定装置的研制[J]. 核电子学与探测技术, 2025, 45(10): 1500-1506.
Xi Yating, Shang Jie, Li Jianwei, et al. Development of a new type of verification device for radon measuring instruments[J]. Nuclear Electronics & Detection Technology, 2025, 45(10): 1500-1506.
[10] JJF 2223—2025 氡子体测量仪校准规范[S].
[11] Liang J C, Zheng P H, Yang Z J, et al. Development of calibration facility for Radon and its progenies at NIM (China)[J]. Radiation Protection Dosimetry, 2015, 167(1/2/3): 82-86.
[12] 南华大学. 氡及子体发生系统测试报告[R]. 衡阳: 南华大学, 2018.
[13] 黄成, 何正忠, 肖德涛, 等. 小体积氡室中氡子体状态参数调控的模拟研究[J]. 原子能科学技术, 2018, 52(3): 570-576.
Huang Cheng, He Zhengzhong, Xiao Detao, et al. Simulation research of radon progeny state parameter control method in small radon chamber[J]. Atomic Energy Science and Technology, 2018, 52(3): 570-576.
[14] Sun Changhao, Xiao Detao, He Zhengzhong, et al. A novel radon progeny generator and its control performance for characteristic parameters[J]. Journal of Radioanalytical and Nuclear Chemistry, 2021, 328(3): 1099-1107.
[15] Cai Xiangming, Shan Jian, Chen Zhangming, et al. Radon progeny aerosol control device and related metrological research[J]. Journal of Radioanalytical and Nuclear Chemistry, 2024, 333(2): 615-627.
[16] 邓天羽, 单健, 蔡祥鸣, 等. 一种小体积氡子体气溶胶调控装置的研制[J]. 核技术, 2024, 47(10): 100401.
Deng Tianyu, Shan Jian, Cai Xiangming, et al. A small volume radon progeny aerosol control device and its performance[J]. Nuclear Techniques, 2024, 47(10): 100401.
[17] 曾旭威, 单健, 杨桧, 等. 小体积氡子体补偿装置中氡子体气溶胶特征参数数据集[J]. 核技术, 2026, 49(5): 050702.
Zeng Xuwei, Shan Jian, Yang Gui, et al. A dataset of characteristic parameters of radon progeny aerosols in a small-volume radon progeny compensation device[J]. Nuclear Techniques, 2026, 49(5): 050702.
[18] Jacobi W. Activity and potential alpha energy of radon and radon-daughters in different air atmospheres[J]. Health Physics, 1972, 22(5): 441-450.