Why is 220Rn (thoron) measurement important?

S Tokonami - Radiation Protection Dosimetry, 2010 - academic.oup.com
New scientific findings based on the latest epidemiological analyses for lung cancer risk due
to radon have been demonstrated. The residential radon concentration is mainly measured …

Overview of radon flux characteristics, measurements, models and its potential use for the estimation of radon priority areas

I Čeliković, G Pantelić, I Vukanac, JK Nikolić… - Atmosphere, 2022 - mdpi.com
Radon flux measurements provide information about how much radon rises from the ground
toward the atmosphere, thus, they could serve as good predictors of indoor radon …

Up-to-date radon-thoron discriminative detector for a large scale survey

S Tokonami, H Takahashi, Y Kobayashi… - Review of Scientific …, 2005 - pubs.aip.org
MATERIALS AND METHODS Our previous radon-thoron discriminative detector has several
functional problems. 9 An influence of electrostatics had to be considered because the …

Radon and thoron exposures for cave residents in Shanxi and Shaanxi provinces

S Tokonami, Q Sun, S Akiba, W Zhuo… - Radiation …, 2004 - meridian.allenpress.com
Abstract Tokonami, S., Sun, Q., Akiba, S., Zhuo, W., Furukawa, M., Ishikawa, T., Hou, C.,
Zhang, S., Narazaki, Y., Ohji, B., Yonehara, H. and Yamada, Y. Radon and Thoron …

Radon–thoron discriminative measurements in Gansu Province, China, and their implication for dose estimates

Y Yamada, Q Sun, S Tokonami, S Akiba… - Journal of Toxicology …, 2006 - Taylor & Francis
Indoor radon measurements were carried out in cave dwellings of the Chinese loess plateau
in Gansu province, where previously the Laboratory of Industrial Hygiene (LIH), China, and …

Preliminary results of simultaneous radon and thoron tests in Ottawa

J Chen, S Tokonami, A Sorimachi… - Radiation Protection …, 2008 - academic.oup.com
Ottawa is the capital city of Canada. In the previous cross Canada radon survey, Ottawa was
not included. There is great interest to know radon level as well as thoron concentration in …

Comparative analysis of radon, thoron and thoron progeny concentration measurements

M Janik, S Tokonami, C Kranrod… - Journal of radiation …, 2013 - academic.oup.com
This study examined correlations between radon, thoron and thoron progeny concentrations
based on surveys conducted in several different countries. For this purpose, passive …

Radon and thoron parallel measurements in Hungary

N Kávási, C Németh, T Kovács… - Radiation Protection …, 2007 - academic.oup.com
Hungarian detectors modified and developed at the National Institute of Radiological
Sciences (NIRS), Japan were placed at different sites, including homes and underground …

Results of simultaneous radon and thoron measurements in 33 metropolitan areas of Canada

J Chen, L Bergman, R Falcomer… - Radiation protection …, 2015 - academic.oup.com
Radon has been identified as the second leading cause of lung cancer after tobacco
smoking. 222Rn (radon gas) and 220Rn (thoron gas) are the most common isotopes of …

Thoron and radon exhalation and emanation from granitic rocks outcropping in the Central Iberian Zone (Portugal)

FP Domingos, SLR Sêco, AJSC Pereira - Environmental Earth Sciences, 2021 - Springer
Terrestrial radionuclides present in soil, bedrock and building materials are considered the
main source of indoor radon (222 Rn) and thoron (220 Rn). Due to its shorter half-life, 220 …