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本文介绍了测量空气中Rn、Tn子体浓度的α谱法,给出相对标准偏差的计算公式及计算机程序框图,讨论了此方法的固有不确定性及其影响因素,给出最佳实验条件。
In this paper, α-spectrum method for measuring the concentration of Rn and Tn in air is introduced. The formula and the block diagram of the relative standard deviation are given. The inherent uncertainty and its influencing factors are discussed. The optimum experimental conditions are given .