Overview of Radon Background Correction Technology for Airborne Gamma Spectrometry

2019 3rd International Conference on Environmental and Energy Engineering

生态环境科学

Zeng, Chenhao^1^2 ; Lai, Wanchang^1 ; Feng, Xiaojie^2 ; Fan, Chen^1 ; Wu, Jinfei^1^3 ; Gu, Runqiu^1^4

College of Nuclear Technology and Automation Engineering, Chengdu University of Technology, Chengdu, Sichuan

610059, China^1

Dept. of Military Installation, Army Logistical University of PLA, Chongqing

401311, China^2

School of Control Engineering, Chengdu University of Information Technology, Chengdu, Sichuan

610225, China^3

Radiation Detection and Protection Institute of Nuclear Industry, Chengdu, Sichuan

610503, China^4

关键词: Accuracy of measurements;    Airborne gamma ray spectrometry;    Airborne gamma spectrometries;    Development directions;    Environmental radiation;    Radiation characteristics;    Radiometric measurements;    Temperature and humidities;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/281/1/012002/pdf
DOI  :  10.1088/1755-1315/281/1/012002

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

In radiometric measurements, the radiation characteristics of radon and its daughters will increase the detection background value and affect the detection results. Research institutes in various regions of the world have studied the effects of radon and its daughters, and have done a lot of work according to the special climate, geological conditions and characteristics of radioactive events in their regions. In the view of the influence of radon background in airborne gamma-ray spectrometry measurement, this paper summarizes the research results of radon background correction in gamma-ray spectrometry measurement from three aspects in the world scope: environmental radiation monitoring, radiation monitoring instruments and nuclear emergency monitoring. In the aspect of environmental radiation monitoring, the research unit mainly considers the climatic factors such as rainfall, temperature and humidity, atmospheric and hydrological changes and seasonal changes, geological factors such as altitude, mineral types, and measurement means such as alpha measurement and inverse derivation gamma measurement. In terms of radiation monitoring instruments, radon and its daughters are mainly considered to reduce the impact and improve the measurement accuracy. In the aspect of nuclear emergency monitoring, the main consideration is how to improve the accuracy of measurement and avoid false alarm. On this basis, the research trend and development direction of radon background correction in airborne gamma-ray spectrometry are put forward.