Radiation Protection Dosimetry Advance Access originally published online on May 25, 2007
Radiation Protection Dosimetry 2008 128(1):124-127; doi:10.1093/rpd/ncm233
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First intercomparison of Tn–Rn discriminative measurements in China
School of Nuclear Science and Technology, Nanhua University, No. 28, Chang Sheng Road, Hengyang, Hunan 421001, People's Republic of China
* Correspondng author: qiu-shoukang{at}tom.com
Received April 19, 2006, amended March 26, 2007, accepted March 30, 2007
The intercomparison measurements with Tn-Rn discriminative monitor were conducted at the Radon Laboratory of Nanhua University. The intercomparison results indicates that the Tn-Rn discrimination of most monitors (including the solid-state nuclear track detector of participant A and participant B, continuous monitors of RAD7 and RTM2100) keeps well in a wide range of the ratio of Tn to Rn. There are great differences of Tn measurement results among RAD7, RTM2100 and reference instrument. The discussion on the reason of these differences reveals the necessity of improvement on monitor calibration, Tn source make and the necessity of more international intercomparisons.