原子能科学技术2012，Vol.46Issue(11)：1397-1401,5.
基于RAD7测氡仪的220Rn气体准确测量研究
Study on Accurate Measurement of 220Rn Activity Concentration by Using RAD7 Radon Monitor
摘要
Abstract
The study on accurate measurement of 220Rn activity concentration was carried out theoretically and experimentally. The effect of the volume of dryer vessel and the sampling flow rate on 220Rn measurement was studied in detail. It is found that the increase of dryer volume and the decrease of sampling flow rate can increase the differences between RAD7 results of 220Rn activity concentration and true value. For an accurate measurement of 220Rn activity concentration, the correction is necessary. And the results show that correction factors for both the RAD7 proper small dryer and the big dryer are 1. 224±0. 118 and 2. 232±0. 598, respectively.关键词
RAD7测氡仪/220Rn活度浓度/准确测量/修正因子Key words
RAD7 radon monitor/ 220Rn activity concentration； accurate measurement/ correction factor分类
能源科技引用本文复制引用
马若云,张磊,郭秋菊..基于RAD7测氡仪的220Rn气体准确测量研究[J].原子能科学技术,2012,46(11):1397-1401,5.基金项目
国家自然科学基金资助项目(11075009) （11075009）
核物理理科基地资助项目(J1103206) （J1103206）
