测氡仪器概述

The summarization of radon-measurement instruments

介绍近年来测氡仪器在找矿(放射性铀钍矿、石油)、地震预报以及环境保护特别是室内氡的测定与防治方面日益显示出重要性的现状,综合介绍了目前国内外测氡仪器的原理、分类、应用,以及近年来氡气测定仪器的发展。对几种常用的瞬时法测氡仪做了重点介绍。对国际“氡热”最为流行的SSNTD方法做了较详细的叙述。

This paper describes the instrument for radon measurements. Radon is derived from radium that is a member of uranium series. People determine the activity concentration of radon by two distinct methods: the instantaneous method and the accumulative method. The instruments can also be classified according to different uses or different radon sources: rocks or in-soil-gas or groundwater or indoor. The SSNTD method is an excellent one because it has high sensitivity, accuracy, stability, convenience and cheapness.