北京地区大气中7Be、137Cs和131I活度浓度分布规律初步研究

北京地区大气中⁷Be、¹³⁷Cs和¹³¹I活度浓度分布规律初步研究

摘要: 介绍了全面禁止核试验条约（CTBT）国际监测系统（IMS）北京核素台站和北京放射性核素实验室的大气气溶胶取样和测量过程；对核素台站和放射性核素实验室的大气气溶胶的长期监测数据进行了统计分析，得到了⁷Be、¹³⁷Cs和¹³¹I活度浓度的分布特点和规律，为深入研究大气中相关放射性核素浓度分布规律奠定了基础。

Abstract: The process of aerosol sampling and measuring of Beijing Radionuclide Station and Beijing Radionuclide Laboratory of the Comprehensive Nuclear-Test-Ban Treaty (CTBT) International Monitoring System (IMS) was described. Long time aerosol monitoring data of the station and the laboratory were analyzed through statistic method and the characteristic and rule of the concentration distribution of nuclides ⁷Be, ¹³⁷Cs and ¹³¹I were obtained. The foundation was formed for further studying the rule of the radionuclide distribution in atmosphere.