主要核素关联法对某型低本底大物品污染监测仪的适用性研究

Abstract

Abstract: This work evaluates the applicability of the Leading Nuclide Correlation (LNC) method to a specific low-background large-object radioactive contamination monitor, using the MCNP5 code. A MCNP model was developed to determine the key parameters required for the LNC method. Considering actual nuclear power plant conditions, the F8 tally was employed to calculate detector count rates across varied scenarios—including different materials, densities, filling fractions, and nuclide distributions. The activity values obtained from the LNC method and the equipment’s built-in algorithm were then compared against the reference values. The results indicate that the relative deviation associated with the LNC method remained consistently within ±15% across all experimental conditions, whereas the built-in algorithm yielded relative deviations as high as -77.5% under extreme scenarios, demonstrating the superior performance of the LNC method. This study confirms the technical applicability of the LNC method for clearance measurements of radioactive solid waste at nuclear power plants using this type of equipment.

Key words: leading nuclide correlation method, monte carlo simulations, radioactive solid waste, clearance, activity measurement

CLC Number:

TL81

LYU Xinsheng, GUO Yinglei, LI Dan. A study on the applicability of the leading nuclide correlation method to a low-background large-object radioactive contamination monitor[J].RADIATION PROTECTION, 2026, 46(2): 134-141.

References

[1] 涂兴明, 文富平, 徐旭涛, 等. 核电站废树脂清洁解控监测实践[J]. 中国辐射卫生, 2024, 33(1): 87-91.
TU Xingming, WEN Fuping, XU Xutao, et al. A practice case of monitoring waste resin clearance in a nuclear power plant[J]. Chinese Journal of Radiological Health, 2024, 33(1): 87-91.
[2] 骆志平, 汪传高, 徐勇军, 等. 核电站废树脂清洁解控问题探讨[J]. 辐射防护, 2017, 37(5): 393-397.
LUO Zhiping, WANG Chuangao, XU Yongjun, et al. Issues on clearance of the spent resin from NPP[J]. Radiation Protection, 2017, 37(5): 393-397.
[3] 叶奇蓁, 张志银. 我国核电厂放射性废物管理进展及挑战[J]. 中国核电, 2010, 3(3): 194-199.
YE Qizhen, ZHANG Zhiyin. Progress and challenges of nuclear power plant radioactive waste management in China[J]. China Nuclear Power, 2010, 3(3): 194-199.
[4] 徐侃, 熊扣红, 闫晓俊, 等. 放射性轻微污染物料清洁解控管理实践和思考[J]. 辐射防护, 2023, 43(4): 360-365.
XU Kan, XIONG Kouhong, YAN Xiaojun, et al. Practice and consideration on clearance of very low level radioactive contaminated material[J]. Radiation Protection, 2023, 43(4): 360-365.
[5] 张根, 熊骁, 任丽丽, 等. 核电厂放射性废物管理策略研究[J]. 核安全, 2022, 21(1): 104-111.
ZHANG Gen, XIONG Xiao, REN Lili, et al. Reflections and suggestions on radioactive waste management in nuclear power plants[J]. Nuclear Safety, 2022, 21(1): 104-111.
[6] 张志银, 刘铁军. 核电厂放射性废物清洁解控方法研究[C]//中国核学会核化工分会放射性三废处理、处置专业委员会学术交流会论文集.2011: 21-25.
[7] 熊忠华, 潘自强, 范显华, 等. 清洁解控研究进展及在放射性废物最小化中的应用[C]//全国核与辐射设施退役学术研讨会论文集.2007: 65-76.
[8] 邓才远, 罗刚. 核电厂放射性废物治理现状及面临的主要问题[J]. 辐射防护通讯, 2018, 38(6): 11-16.
DENG Caiyuan, LUO Gang. Status and major problems of radioactive waste management in NPPs of China[J]. Radiation Protection Bulletin, 2018, 38(6): 11-16.
[9] 阳刚, 庹先国, 程智. 桶装核废物层析γ扫描技术研究[J]. 核电子学与探测技术, 2015, 35(1): 26-30, 35.
YANG Gang, TUO Xianguo, CHENG Zhi. The study of tomographic gamma ray scanning for nuclear waste drums[J]. Nuclear Electronics & Detection Technology, 2015, 35(1): 26-30, 35.
[10] 杨明太, 张连平. 桶装核废物的非破坏性分析[J]. 核电子学与探测技术, 2003, 23(6): 600-603.
YANG Mingtai, ZHANG Lianping. Non-destructive assay of nuclear waste in drum[J]. Nuclear Electronics & Detection Technology, 2003, 23(6): 600-603.
[11] 周志波. 桶装核废物快速检测方法研究[D]. 北京: 中国原子能科学研究院, 2007.
[12] 雷强, 刘哲, 蒋婧, 等. 核电厂放射性固体废物桶外γ测量重要影响因素的探讨[J]. 辐射防护通讯, 2020, 40(3): 9-14.
LEI Qiang, LIU Zhe, JIANG Jing, et al. Discussion on out-of-barrel gamma measurement of NPP solid radioactive wastes[J]. Radiation Protection Bulletin, 2020, 40(3): 9-14.
[13] HOU Suxia, LUO Jijun. The design of integrated gamma ray scanning system for the uranium sample[J]. Annals of Nuclear Energy, 2022, 171: 109030.
[14] Frosio T, Menaa N, Dumont G, et al. New methodology for in-situ classification of radiological items with a clearance monitor system[J]. Nuclear instruments and methods in physics research, section A: Accelerators, spectrometers, detectors and associated equipment, 2020, 966: 163847.
[15] Mirion Technologies (RADOS) GmbH. Checkpoint: Waste^TM RTM640Inc (1D) clearance measurement station service manual: No: D300011[R]. Hamburg: Mirion Technologies (RADOS) GmbH, 2017.
[16] 中国兵器装备集团自动化研究所有限公司. NWM-12低本底大物品污染监测仪使用维护说明书[Z]. 绵阳: 中国兵器装备集团自动化研究所有限公司, 2021.
[17] X-5 Monte Carlo Team. MCNP——a general monte carlo N-particle transport code, version 5, volume I: overview and theory: LA-UR-03-1987[R]. Los Alamos: Los Alamos National Laboratory, 2008.
[18] 李筱珍, 刘立坡, 张鑫. 标准——放射性废物管理的技术依据[J]. 中国核工业, 2011(8): 37-39.
LI Xiaozhen, LIU Lipo, ZHANG Xin. Standards: the technical basis for radioactive waste management[J]. China Nuclear Industry, 2011(8): 37-39.
[19] 董舵, 管婧宇, 王子祺, 等. 核电厂放射性废物安全处置技术研究[J]. 材料导报, 2025, 39(11): 142-158.
DONG Duo, GUAN Jingyu, WANG ZI Qi, et al. Technological advances in safe disposal of radioactive waste from nuclear plants[J]. Materials Reports, 2025, 39(11): 142-158.
[20] 罗上庚. 放射性废物概论[M]. 北京: 原子能出版社, 2003.
LUO Shanggeng. Introduction to radioactive waste management[M]. Beijing: Atomic Energy Press, 2003.
[21] Williams R G, Gesh C J, Pagh R T. Compendium of material composition data for radiation transport modeling[R]. Richland: Pacific Northwest National Laboratory, 2006.

A study on the applicability of the leading nuclide correlation method to a low-background large-object radioactive contamination monitor

PDF (PC)

Like

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 13

Metrics

Comments

Recommended 10

[1]	LI Ke, LIU Dan, HUANG Houshun, HAN Xu, GUO Xiliang, GAO Chao, YAN Xiaojun. Clearance practice of radioactive activated carbon generated by nuclear power plants [J]. RADIATION PROTECTION, 2025, 45(5): 530-539.
[2]	XIA Yihua, SONG Weijie, NIE Peng, YUAN Yang, XU Yao. Some concepts, standards and their evolution related to the regulatory scope of radiation protection [J]. RADIATION PROTECTION, 2025, 45(4): 313-319.
[3]	WU Mengmeng, YIN Yunyun, GUO Luzhen, LV Tianlin, WANG Chuangao, PANG Hongchao. Measurement of ultra-trace level ²³⁹Pu in seawater samples by accelerator mass spectrometry [J]. RADIATION PROTECTION, 2025, 45(2): 133-140.
[4]	ZHANG Hansheng, YANG Suyun, WANG Mengting, HU Manman. Discussion on the clothing decay time and clothing decay room's spatial distribution of the ¹³¹I treatment area [J]. RADIATION PROTECTION, 2024, 44(5): 530-536.
[5]	FENG Jiangping, ZHANG Jinfan, GUO Jianfeng. Preliminary study on the method for estimating ¹⁸F activity through multi-time span spectral detection [J]. RADIATION PROTECTION, 2023, 43(6): 595-597.
[6]	XU Kan, XIONG Kouhong, YAN Xiaojun, GUO Xiliang, XU Chunyan, GAO Chao. Practice and consideration on clearance of very low level radioactive contaminated material [J]. RADIATION PROTECTION, 2023, 43(4): 360-365.
[7]	MA Tianci, XIANG Dong, CHENG Weiya, TAN Zhiyu, CHEN Liangping. Study on the influencing factors of pulmonary effective dose conversion coefficient of inhaled radon progeny [J]. RADIATION PROTECTION, 2023, 43(1): 64-71.
[8]	YU Dawan, XU Hongming, ZHOU Chenhao, GUO Xiliang, YU Dayu, JIANG Chunhui. Practice and research on minimization of radioactivewaste amounts in Qinshan Nuclear Power Plant [J]. RADIATION PROTECTION, 2019, 39(3): 213-220.
[9]	XIAO Jianhua, ZHANG Xiaowen, YANG Rong, DU Renkai, ZHANG De. Minimization practice and management of radioactivewastes in a uranium enrichment plant [J]. RADIATION PROTECTION, 2019, 39(1): 61-66.
[10]	Luo Zhiping, Wang Chuangao, Xu Yongjun, Wang Wei, Guo Jinsen, Tu Xingming, Wen Fuping, Chen Ling. Issues on clearance of the spent resin from NPP [J]. RADIATION PROTECTION, 2017, 37(5): 393-397.
[11]	Guo Xiliang, Xiong Kouhong, Yang Weibing, Gao Chao, Xiong Xiaowei, Jia Meilan, Li Houwen, An Hongxiang. Discussion on volume reduction treatment of disused drying agents from heavy water vapor recovery system [J]. RADIATION PROTECTION, 2015, 35(2): 97-103.
[12]	Ma Pengxun, Liu Huichun, Jin Hairui, Liu Zhiyuan. Tracing Management of Radioactive Solid Waste at SMNPP [J]. RADIATION PROTECTION, 2014, 34(2): 124-128.
[13]	Guo Xiliang, Xu Chunyan, Feng Wendong, Gao Chao, Yang Weibing, Yue Zengqiang, Xiong Kouhong, Xiong Xiaowei, An Hongxiang. Clearance of Slightly Radioactive Contaminats from NPPs [J]. RADIATION PROTECTION, 2014, 34(2): 74-80.