論文 - 床次 眞司
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Experimental system to evaluate the effective diffusion coefficient of radon
M. Hosoda, S. Tokonami, A. Sorimachi, J. Miroslaw, T. Ishikawa, Y. Yatabe, J. Yamada, S. Uchida
Review of Scientific Instruments 80 ( 1 ) 013501 2009年01月
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A simple technique for determining the equilibrium equivalent Thoron concentration using a CR-39 detector: Application in mineral treatment industry
C. Kranrod, S. Chanyotha, N. Chankow, S. Tokonami, T. Ishikawa, S. K. Sahoo
Radioprotection 44 ( 5 ) 301 - 304 2009年
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Passive measurements of thoron and its progeny in some dwellings in Ireland
Choncubhair Ó.N., Mc Laughlin J., Tokonami S
The American Institute of Physics (AIP) Conference Proceedings Series ( 1034 ) 16 - 19 2008年09月
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Radon in drinking water and cancer mortality: an ecological study in Japan
Yoshinaga, S., Ishikawa, T., Tokonami, S., Mizoue T., Narazaki, Y., Mizuno, S., Akiba, S.
The American Institute of Physics (AIP) Conference Proceedings Series ( 1034 ) 429 - 432 2008年09月
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Evaluation of gas-filled ionization chamber method for radon measurement at two reference facilities
Ishikawa T., Tokonami S., Kobayashi Y., Sorimachi A., Yatabe Y., Miyahara N.
The American Institute of Physics (AIP) Conference Proceedings Series ( 1034 ) 423 - 426 2008年09月
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Performance of NIRS thoron chamber system
Sorimachi A., Tokonami S., Takahashi H., Kobayashi Y.
The American Institute of Physics (AIP) Conference Proceedings Series ( 1034 ) 206 - 209 2008年09月
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The Japanese radon and thoron reference chambers
Tokonami S., Ishikawa T., Sorimachi A., Takahashi H., Miyahara N.
The American Institute of Physics (AIP) Conference Proceedings Series ( 1034 ) 202 - 205 2008年09月
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Measurement of indoor radon-222 and radon-220 concentrations in central Japan
Oka M., Shimo M., Tokonami S., Sorimachi A., Takahashi H., Ishikawa T.
The American Institute of Physics (AIP) Conference Proceedings Series ( 1034 ) 189 - 192 2008年09月
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Preliminary results of indoor radon/thoron concentrations and terrestrial gamma doses in Gejiu, Yunnan, China
Ishikawa T., Tokonami S., Sun Q., Kobayashi Y., Min X., Yoshinaga S.
The American Institute of Physics (AIP) Conference Proceedings Series ( 1034 ) 173 - 176 2008年09月
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Preliminary results of simultaneous radon and thoron tests in Ottawa
Chen, J., Tokonami, S., Sorimachi, A., Takahashi, H., Falcomer, R.
Radiation Protection Dosimetry 130 ( 2 ) 253 - 256 2008年01月
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A case study on the effect of water from groundwater sources on indoor radon levels.”
Yumi Yasuoka, Tetsuo Ishikawa, Shinji Tokonami, Hiroyuki Takahashi, Yukinori Narazaki, Masaki Shinogi
Journal of Radioanalytical and Nuclear Chemistry 275 ( 1 ) 165 - 172 2008年01月
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Determination of depleted uranium in environmental bio-monitor samples and soil from target sites in western Balkan region
Sarata K. Sahoo, Hiroko Enomoto, Shinji Tokonami, Tetsuo Ishikawa, Predrag Ujic, Igor Celikovic, Zora S. Zunic
NATURAL RADIATION ENVIRONMENT 1034 287 - + 2008年
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210Po and 210Pb inhalation dose by cigarette smoking in Gansu and Yunnan Provices, China
Tokonami, S., Kovacs, T., Yoshinaga, S., Kobayashi, Y. and Ishikawa, T
Japanese journal of Health Physics 43 ( 2 ) 131 - 134 2008年
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Calculation of dose conversion factors for thoron decay products.
Ishikawa T, Tokonami S, Nemeth C
Journal of radiological protection : official journal of the Society for Radiological Protection 27 ( 4 ) 447 - 456 2007年12月
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Continuous measurements of bronchial exposure induced by radon decay products during inhalation.
Iwaoka K, Tokonami S, Yonehara H, Ishikawa T, Doi M, Kobayashi Y, Yatabe Y, Takahashi H, Yamada Y
The Review of scientific instruments 78 ( 9 ) 093301 2007年09月
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Changes in atmospheric electrical conditions due to anomalous radon exhalation preceding large earthquakes
Y. Omori, Y. Yasuoka, H. Nagahama, Y. Kawada, T. Ishikawa, S. Tokonami, M. Shinogi
EASTEC symposium 2007: Dynamic Earth -its origin and future- (Sendai, Japan, 18-21 September, 2007). Organized by The 21st Century COE Program at Tohoku Univerisity, “Advanced Science and Technology Center for the Dynamic Earth”. Poster presentation 2007年09月
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A naturally ventilated accumulator for integrating measurements of radon flux from soil
Weihai Zhuo, Masahide Furukawa, Shinji Tokonami
JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY 44 ( 8 ) 1100 - 1105 2007年08月
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Anomalous radon emanation linked to preseismic electromagnetic phenomena
Y. Omori, Y. Yasuoka, H. Nagahama, Y. Kawada, T. Ishikawa, S. Tokonami, M. Shinogi
NATURAL HAZARDS AND EARTH SYSTEM SCIENCES 7 ( 5 ) 629 - 635 2007年
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Airborne and waterborne radon concentrations in areas with use of groundwater supplies
T Ishikawa, S Tokonami, S Yoshinaga, Y Narazaki
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY 267 ( 1 ) 85 - 88 2005年12月
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Applicability of the electrical low pressure impactor to size determination of aerosols attached to radon decay products
Y Yamada, S Tokonami, K Yamasaki
REVIEW OF SCIENTIFIC INSTRUMENTS 76 ( 6 ) 2005年06月