基于稳定有效衰变常量的氡析出率连续测量方法研究
On Continuous Measurement Method of Radon Emanation Rate Based on Stable Effective Decay Constant
李志强 1肖德涛 2肖启国3
作者信息
- 1. 衡阳师范学院 物理与电子工程学院,湖南 衡阳 421002
- 2. 南华大学 核科学技术学院,湖南 衡阳 421001
- 3. 衡阳师范学院 物理与电子工程学院,湖南 衡阳 421002;南华大学 核科学技术学院,湖南 衡阳 421001
- 折叠
摘要
为准确估算大型核设施、铀尾矿库等特殊环境中氡的年释放总量,研究了一种基于稳定有效衰变常量的氡析出率连续测量方法.该方法通过多次测量并运用最小二乘法确定集氡室内氡的等效衰变常量,结合等时间间隔连续测量的氡浓度计算析出率.实验结果表明,该方法在标准装置上的测量结果与标定参考值一致,适用于铀尾矿库表面氡析出率的连续测量.该方法对特殊场所的氡污染环境评价具有重要意义,为相关部门提供了科学准确的数据支撑和技术保障.
Abstract
To accurately estimate the annual radon emission totals in special environments such as large nuclear facilities and uranium tailings ponds,a method for continuously measuring radon exhalation rates based on stable and effective decay constants has been developed.This method involves multiple measurements and the application of the least squares method to determine the equivalent decay constant of radon within a radon collection chamber.By combining this with continuously measured radon concentrations at equal time intervals,the exhalation rate can be calculated.The experimental results has shown that the measurement results of this method on a standard device are consistent with the calibration reference values,and it is suitable for continuous measurement of radon release rate on the surface of uranium tailings ponds.This method is of great significance for the environmental assessment of radon pollution in special places,providing scientific and accurate data support and technical support for relevant departments.
关键词
氡析出率/连续测量/有效衰变常量Key words
radon exhalation rate/continuous measuring/effective decay constant引用本文复制引用
出版年
2024
NETL
NSTL
万方数据