车载辐射监测系统的现场校验方法

辐射防护通讯 ›› 2026, Vol. 46 ›› Issue (1): 31-35.

车载辐射监测系统的现场校验方法

廖宇航^1,2,3, 吕安标^1,2,3, 吴佳俊^1,2,3, 丁逊^1,2,3, 曹龙生^1,2,3

1.浙江省辐射环境监测站,杭州 310012;
2.国家环境保护辐射环境监测重点实验室,杭州 310012;
3.浙江省辐射环境安全监测重点实验室,杭州 310012

收稿日期:2025-09-17 出版日期:2026-02-20 发布日期:2026-03-05
作者简介:廖宇航(1997—),男,2019年毕业于南华大学辐射防护与核安全工程专业,学士; 工程师。E-mail:2568522160@qq.com

A calibration method for vehicle-mounted radiation monitoring system

LIAO Yuhang^1,2,3, LYU Anbiao^1,2,3, WU Jiajun^1,2,3, DING Xun^1,2,3, CAO Longsheng^1,2,3

1. Zhejiang Radiation Environmental Monitoring Center, Zhejiang Hangzhou 310012;
2. State Environmental Protection Key Laboratory of Radiation Environmental Monitoring, Zhejiang Hangzhou 310012;
3. Key Laboratory of Radiation Environmental Safety Monitoring of Zhejiang Province, Zhejiang Hangzhou 310012

Received:2025-09-17 Online:2026-02-20 Published:2026-03-05

摘要/Abstract

摘要： 提出并验证了一种车载辐射监测系统的现场校验方案。以RS-700型车载辐射监测系统为实验对象,利用标准放射源与高气压电离室作为参考,系统评估了不同距离下的测量重复性、数据一致性及校验系数的统计分布。结果表明,车载辐射监测系统现场校验可行性良好。校准过程中:源与探测器距离应≥0.5 m;应通过多次独立测量取平均值以降低随机误差。

关键词: 车载辐射监测系统, 校验, 剂量率

Abstract: To ensure long-term reliability of metrological performance of vehicle-mounted radiation monitoring system and to address the impracticality and high cost associated with frequent off-site calibration, This study proposes and validates a user-performed on-site calibration scheme. Using the widely adopted RS-700 vehicle-mounted radiation monitoring system as the test object, with standard radioactive sources and a high-pressure ionization chamber as references, the measurement repeatability, data consistancy, and statistical distribution of calibration factors across various distances are systematically evaluated. The results demonstrate the feasibility of user-performed on-site calibration. To ensure calibration accuracy, key operational parameters such as maintaining a distance between the calibration source and the detector greater than 0.5 meters and performing multiple independent measurements should be achieved with the aim to reduce random error.

Key words: vehicle-mounted radiation monitoring system, calibration, dose rate

中图分类号:

TL81

廖宇航, 吕安标, 吴佳俊, 丁逊, 曹龙生. 车载辐射监测系统的现场校验方法[J]. 辐射防护通讯, 2026, 46(1): 31-35.

LIAO Yuhang, LYU Anbiao, WU Jiajun, DING Xun, CAO Longsheng. A calibration method for vehicle-mounted radiation monitoring system[J]. RADIATION PROTECTION BULLETIN, 2026, 46(1): 31-35.

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