Thiessen N P
U.S. Department of Energy, Grand Junction Projects Office, RUST Geotech Inc., CO 81502.
Health Phys. 1994 Dec;67(6):632-40. doi: 10.1097/00004032-199412000-00006.
A comparison is made between the relative variances and counting time requirements for obtaining radon and thoron progeny air concentrations from total alpha count data and from spectroscopically resolved alpha count data collected from air sampling filters. Spectral resolution is shown to have significant advantages, especially in mixed radon/thoron atmospheres. Systematic biases resulting from imperfect energy peak resolution are shown to be subject to accurate mathematical compensation.
对通过空气采样滤膜收集的总α计数数据以及光谱分辨α计数数据来获取氡和钍射气子体空气浓度时的相对方差和计数时间要求进行了比较。结果表明，光谱分辨率具有显著优势，尤其是在氡/钍混合大气环境中。由不完全能量峰分辨率导致的系统偏差可通过精确的数学补偿来校正。
