A simple passive monitor for integrating measurements of indoor thoron concentrations
W Zhuo, S Tokonami, H Yonehara… - Review of scientific …, 2002 - pubs.aip.org
Public exposure to radon (222Rn) and its progeny has been a worldwide concern in the past
decades. Many types of passive integrating 222Rn monitors with solid state nuclear track
detectors have been developed for large-scale and longterm measurements. 1–4 However,
most of the monitors are sensitive to not only 222Rn, but also thoron (220Rn) to different
extents. 5 To precisely measure 222Rn concentration, it is necessary to evaluate the
influence of 220Rn on the 222Rn measurements. On the other hand, recent surveys have …
decades. Many types of passive integrating 222Rn monitors with solid state nuclear track
detectors have been developed for large-scale and longterm measurements. 1–4 However,
most of the monitors are sensitive to not only 222Rn, but also thoron (220Rn) to different
extents. 5 To precisely measure 222Rn concentration, it is necessary to evaluate the
influence of 220Rn on the 222Rn measurements. On the other hand, recent surveys have …
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