期刊论文

Shan, Jian

中文

原子能科学技术

1000-6931

2014

48

9

1707-1711

10.7538/yzk.2014.48.09.1707

国家自然科学基金资助项目（11375083,11075070）； 教育部博士点基金博导类课题资助项目（20114324110003）；

本校为第一且通讯机构

本文根据目前国内外对绝对湿度效应的研究现状,针对绝对湿度对 N RL-1型测氡仪探测效率的影响,建立了N RL-1型测氡仪温湿度修正的实验方案。通过对南华大学氡实验室氡活度浓度的控制、温湿度调节方案进行分析与改进,控制实验中的绝对湿度变化,得到了不同绝对湿度下的修正因子,并获得了绝对湿度在1.90~14.91 g/m~3范围内的温湿度修正曲线,从而成功地对N RL-1型测氡仪进行了温湿度效应修正。实验结果表明:综合考虑绝对湿度的情况下,在绝对湿度小于2.4 g/m~3时,N RL-1型连续测氡仪的收集效率趋近于常数;其绝对湿度的修正因子基本接近于1;而随着绝对湿度的增大,修正因子呈非线性增长。

The absolute humidity and temperature’s effects on the NRL-1 measuring apparatus for radon were studied in this paper .By controlling the radon activity concen-tration of the radon laboratory in University of South China and improving the tempera-ture and humidity adjust strategy , different correction factor values under different absolute humidities were obtained . Moreover , a correction curve between 1.90 and 14.91 g/m3 was also attained .The results show that in the case of absolute humidity , when it is less than 2.4 g/m3 ,collection eff...