Shinji Tokonami

TL;DR: In this article, an up-to-date radon-thoron discriminative detector has been developed for conducting a large scale survey, and the lowest and highest detection limits of the detector were estimated to be around 5 and 1000Bqm−3 for radon, and 15 and 1000 Bqm −3 for thoron, respectively, with a 6-month exposure and several theoretical assumptions.

TL;DR: Detailed measurements of the exposure to I-131 revealing I- 131 activity in the thyroid of 46 out of the 62 residents and evacuees measured are reported for the first time.

TL;DR: In this article, the authors measured the concentration of mains water in 120 settlements in Hungary (Southern Hungary, the Balaton Highland region) and found that the average concentration was 5.56 (0-24.3)Bql-1.

TL;DR: The importance of thoron measurement is presented throughout results the authors have obtained in field and in laboratory so far, as there seem to be no correlation among radon, thoron and thoron progeny concentrations.

TL;DR: The present study revealed that the presence of thoron is not negligible for accurate radon measurements and thus that special attention should be paid to thoron and its decay products for dose assessment in such an environment.