Characterization and Intercomparisons of Fully Automated Atmospheric Radon Monitoring Instrument

德雷塞尔大学为直接分析遥远海洋大气中的大气氡而研制的自动氡监测仪器已在百慕大运行了一年多。拟议项目的目的是在实验室和实地进行一系列研究，以充分描述影响实地氡仪器总体分析效率的仪器和抽样特性，以便验证方法和分析结果。表征研究旨在提供：1。氡取样效率及其对操作温度的依赖性的评估。2. 校正已在百慕达仪器上运作的六个Lucas细胞的计数效率。3. 使用双盲标准添加对百慕大仪器和第二个新仪器进行校准。4. 利用一名独立裁判，将两种德雷克塞尔仪器与澳大利亚核技术组织能源部环境测量实验室和法国国家科学研究中心放射性污染中心的仪器进行现场和实验室分析的相互比较。//

An automated radon monitoring instrument developed at Drexel University for the direct analysis of atmospheric radon in the remote marine atmosphere has been in operation in Bermuda for more than a year. The purpose of the proposed project is to perform a series of studies in the laboratory and in the field to characterize fully the instrumental and sampling attributes affecting the overall analytical efficiency of the field radon instrument in order to validate the methodology and the analytical results. The characterization studies are designed to provide: 1. Assessment of the efficiency of radon sampling and its dependency upon operating temperatures. 2. Calibration of the counting efficiency of each of the six Lucas cells which have been operational in the Bermuda instrument. 3. Calibration of the Bermuda instrument and a second new instrument using double blind standard additions. 4. Intercomparison, using an independent referee, of both field and laboratory analyses by the two Drexel instruments with instruments of the Environmental Measurements Laboratory of the Department of Energy, the Australia Nuclear and Technology Organization, and the Centre des Faibles Radioactivities, CNRS, France. //