@inproceedings{oai:repo.qst.go.jp:00054434,
 author = {J., Somlai and T., Ishikawa and 大森, 康孝 and R., Mishra and B.K., Sapra and Y.S., Mayya and 床次, 眞司 and A., Csordás and T., Kovács and 石川 徹夫 and 大森 康孝 and 床次 眞司},
 book = {VII. Hungarian Radon Forum and Radon in Environment Satellite Workshop},
 month = {Dec},
 note = {Radon (222Rn), thoron (220Rn) and their progenies are considered to be the major contributors to human exposure from natural sources. Although the radon presents the main concern of inhalation dose contributor for general public, in the last years the thoron has gained increasing attention among health physicists. During the survey 82 houses were inspected in Hungary froma total of 5 localities, with different exposition periods (3-6 months). Mainly detached houses were selected, and as far as it was possible, the detector sets were placed at the ground floor. For the research work several types of track detectors (NRB, NRB SSI, RADUET) were used, which behaved in different manners depending on the radon and thoron concentration, and the purpose of the measurement location. Different types of building materials (concrete, bricks and bricks mixed with other materials) were examined. The highest radon and thoron concentrations were measured in dwellings buil from bricks mixed with other materials. In case of the other two building materials the deviation between the measured values was low. Both radon and thoron concentrations were low in the examined dwellings; the concentration was less than 100 Bq/m3 in 72% and 95% of the measuring points in case of radon and thoron, respectively.},
 pages = {105--113},
 publisher = {The Pannonian University Press},
 title = {Indoor radon and thoron survey in Hungary (comparison of track etched detectors)},
 year = {2013}
}