Comparative study of the measurement of thoron gas
Comparative study of the measurement of thoron gas
复制标题
钍气测量的对比研究
作者：
Wu,J.;Zhang,L.;Liang,J.;Guo,Q.
The accurate measurement of 220Rn is important for dosimetry evaluation of natural radiation exposure. In thiswork, based on three commonly used radon measuring devices, i.e. AB5, RAD7 and, AlphaGuard, we developed their use for 220Rn measurement, and their experimental results were compared. The AB5 grab measurement method is simple in principle with stable measurement results, and can be used as a reference method of measuring 220Rn, through its lower detection limit is a little higher. The 220Rn measurement result given by RAD7 is influenced by the status of desiccant and need a timely calibration. AlphaGuard flow mode has the advantage of low detection limit, but can only be a general reference, because of its sampling flow rate and the status of front-end sampling pipe.
