794矿尾矿渣场镭比活度计算法参数试验结果分析

介绍了利用镭比活度计算法确定核工业794矿铀尾渣场氡析出率所用参数——氡射气系数和氡扩散系数的测量结果及其分析对比,野外采样室内化学分析镭比活度与γ能谱测量镭比活度对比,探讨了在北方气候条件下,铀尾渣场氡射气系数和扩散系数的变化规律和特点,以及这些参数测量的最佳气候和季节,并对镭比活度计算法的特点和测量结果进行了分析。

Result analysis on the parameter test of radium specific activity calculation in the tailling of uranium mine No.794

This paper first introduces the calculating method of radium specific activity to determine the radon emanation rate of tailing of uranium mine No.794,the method needs two parameters: radon emanation coefficient and radon diffusion coefficient. According to the measured results of parameters and the contrast between radium specific activity of indoor chemical analysis of field sample and field gamma-ray spectra,the authors discuss the variation rules and characteristics of radon emanation coefficient and radon diffusion coefficient,and the best climate and seasons for measuring these parameters in northern China,and finally summarize the characteristics of this method through analyzing measured results.