Martín Sánchez A, dela Torre Pérez J
Department of Physics, University of Extremadura, Badajoz, Spain.
Appl Radiat Isot. 2012 Dec;70(12):2742-5. doi: 10.1016/j.apradiso.2012.09.001. Epub 2012 Sep 11.
From the (222)Rn mixed with air, the short-lived daughters (218)Po, (214)Pb, (214)Bi, and (214)Po attach to dust particles and are deposited on surfaces where finally (210)Pb and (210)Po are formed. The alpha particles from (210)Po can be measured on surfaces such as window glass or mirrors. The design and construction are presented of a new device using a silicon detector to measure this (210)Po. Some preliminary results are reported and estimates of retrospective radon concentrations are made from them.
在与空气混合的（222）Rn中，短寿命子体（218）Po、（214）Pb、（214）Bi和（214）Po附着在尘埃颗粒上，并沉积在表面，最终在这些表面形成（210）Pb和（210）Po。来自（210）Po的α粒子可以在诸如窗玻璃或镜子等表面上进行测量。介绍了一种使用硅探测器测量这种（210）Po的新装置的设计和构造。报告了一些初步结果，并据此对回顾性氡浓度进行了估算。
