Masanori Takeyasu - My portal

Profile Information

Affiliation: Nuclear Emergency Assistance and Training Center, Japan Atomic Energy Agency

J-GLOBAL ID: 202101013457427776
researchmap Member ID: R000017113

Research Areas

Environmental science/Agricultural science / Environmental impact assessment /

Papers

Estimation of dry deposition velocities of radionuclides released by the accident at the Fukushima Dai-ichi Nuclear Power Plant

Takeyasu Masanori, Sumiya Shuichi

Progress in Nuclear Science and Technology (Internet), 4 64-67, Apr, 2014 Peer-reviewed
Estimation of dose from the measurement results of airborne radionuclide concentrations following the Fukushima Dai-ichi Nuclear Power Plant accident; For the public around Tokai-mura, Ibaraki

Takeyasu Masanori, Sumiya Shuichi, Furuta Sadaaki

Hoken Butsuri, 48(3) 141-149, Nov, 2013 Peer-reviewed
Study of wet scavenging of atmospheric aerosols using $^{222}$Rn decay products in rainwater

Takeyasu Masanori

Rainfall; Behavior, Forecasting and Distribution, 105-121, Oct, 2012 Peer-reviewed
Results of environmental radiation monitoring at the Nuclear Fuel Cycle Engineering Laboratories, JAEA, following the Fukushima Daiichi Nuclear Power Plant accident

Takeyasu Masanori, Nakano Masanao, Fujita Hiroki, Nakada Akira, Watanabe Hitoshi, Sumiya Shuichi, Furuta Sadaaki

Journal of Nuclear Science and Technology, 49(3) 281-286, Mar, 2012 Peer-reviewed
Measurement of environmental $\gamma$-ray dose rate around the Nuclear Fuel Cycle Engineering Laboratories, JAEA

Mizutani Tomoko, Onuma Toshimitsu, Sugai Masamitsu*, Watanabe Hajime*, Morisawa Masato, Takeyasu Masanori, Sumiya Shuichi

Progress in Nuclear Science and Technology (Internet), 1 380-383, Feb, 2011 Peer-reviewed
Estimation of $^{222}$Rn concentration in the lower troposphere during precipitation using wet scavenging model for its decay products

Takeyasu Masanori, Takeishi Minoru

Asian Journal of Atmospheric Environment, 4(1) 20-25, Jun, 2010 Peer-reviewed
Determination of the variation of environmental radiation due to the ground deposition of atmospheric $^{222}$Rn decay products during rainfall; Utilization of the correlation between the variations observed at neighboring monitoring posts

Takeyasu Masanori, Onuma Toshimitsu, Takeishi Minoru

Journal of Radioanalytical and Nuclear Chemistry, 284(3) 635-639, Mar, 2010 Peer-reviewed
Simulation of the atmospheric dispersion of $^{85}$Kr from a reprocessing plant over a coastal area; Performance examination of an emergency environmental radiation dose evaluation code system "SIERRA-II"

Takeyasu Masanori, Iida Takao*, Watanabe Hitoshi, Takeishi Minoru, Yamamoto Asao*

Journal of Radioanalytical and Nuclear Chemistry, 275(1) 43-54, Jan, 2008 Peer-reviewed
Concentration factors of marine products for Transuranic nuclides

Nakano Masanao, Takeyasu Masanori, Fujita Hiroki, Takeishi Minoru

Radioisotopes, 55(4) 197-203, Apr, 2006 Peer-reviewed
Concentrations and their ratios od $^{222}$Rn decay products in rainwater measured by $\gamma$-ray spectrometry using a low-background Ge detector

Takeyasu Masanori, Iida Takao*, Tsujimoto Tadashi*, Yamasaki Keizo*, Ogawa Yoshihiro*

Journal of Environmental Radioactivity, 88(1) 74-89, Jan, 2006 Peer-reviewed
Development of a Real-Time Environmental Radiation Dose Evaluation System for the Vicinity of a Nuclear Facility; A Study of a Real-Time Environmental Radiation Dose Evaluation System

Takeyasu Masanori, Takeishi Minoru, Shimizu Takehiko, Iida Takao*

Hoken Butsuri, 39(4) 382-390, Jan, 2004 Peer-reviewed

Misc.

Study of the applicability of SrI$_{2}$(Eu) scintillation detector to in-situ gamma-ray spectrometry

Takeyasu Masanori, Mikami Satoshi, Ando Masaki, Hokama Tomonori

JAEA-Testing 2023-005, 17, Mar, 2024
Internal dose examination by WBC for the Fukushima residents (Review)

Takeyasu Masanori, Fujiwara Kenso

JAEA-Review 2021-061, 11, Mar, 2022
What can we measure by radiation measurement instruments?

Takeyasu Masanori

Tomioka Hoshasen Joho Matome Saito (Internet), 2, Jan, 2017
Annual report on the environmental radiation monitoring around the Tokai Reprocessing Plant FY2014

Watanabe Hitoshi, Nakano Masanao, Fujita Hiroki, Takeyasu Masanori, Mizutani Tomoko, Isozaki Tokuju*, Nagaoka Mika, Hokama Tomonori, Yokoyama Hiroya, Nishimura Tomohiro …

JAEA-Review 2015-034, 175, Mar, 2016
Annual report on the environmental radiation monitoring around the Tokai Reprocessing Plant FY2013

Watanabe Hitoshi, Nakano Masanao, Fujita Hiroki, Takeyasu Masanori, Mizutani Tomoko, Isozaki Tokuju, Morisawa Masato, Nagaoka Mika, Hokama Tomonori, Yokoyama Hiroya …

JAEA-Review 2014-042, 175, Jan, 2015
Annual report on the environmental radiation monitoring around the Tokai Reprocessing Plant FY2012

Sumiya Shuichi, Watanabe Hitoshi, Miyagawa Naoto, Nakano Masanao, Nakada Akira, Fujita Hiroki, Takeyasu Masanori, Isozaki Tokuju, Morisawa Masato, Mizutani Tomoko …

JAEA-Review 2013-056, 181, Mar, 2014
Study on the determination of the variation of environmental gamma-ray dose rate due to radioactivity discharged from nuclear fuel cycle facility (Thesis)

Takeyasu Masanori

JAEA-Review 2013-016, 92, Jul, 2013
Annual report on the environmental radiation monitoring around the Tokai Reprocessing Plant FY2011

Sumiya Shuichi, Watanabe Hitoshi, Nakano Masanao, Takeyasu Masanori, Nakada Akira, Fujita Hiroki, Isozaki Tokuju, Morisawa Masato, Mizutani Tomoko, Nagaoka Mika …

JAEA-Review 2013-009, 195, Jun, 2013
ORION-WIN; A Computer code to estimate environmental concentration and radiation dose due to airborne discharge of radioactive materials from nuclear facilities

Takeyasu Masanori, Onuma Toshimitsu, Sumiya Shuichi

JAEA-Data/Code 2012-021, 29, Sep, 2012
ORION-WIN; A Computer code to estimate environmental concentration and radiation dose due to airborne discharge of radioactive materials from nuclear facilities

Takeyasu Masanori, Onuma Toshimitsu, Sumiya Shuichi

JAEA-Data/Code 2012-011, 28, Jul, 2012
Special environmental monitoring around Tokai-mura after the accident of the Fukushima Dai-ichi Nuclear Power Station

Fujita Hiroki, Nagaoka Mika, Kono Takahiko, Takeyasu Masanori, Kawasaki Masatsugu, Okura Takehisa, Tsujimura Norio, Sumiya Shuichi, Momose Takumaro, Furuta Sadaaki

Proceedings of 13th International Congress of the International Radiation Protection Association (IRPA-13) (Internet), 7, May, 2012
Annual report on the environmental radiation monitoring around the Tokai Reprocessing Plant FY2010

Sumiya Shuichi, Watanabe Hitoshi, Nakano Masanao, Takeyasu Masanori, Nakada Akira, Fujita Hiroki, Isozaki Tokuju, Morisawa Masato, Mizutani Tomoko, Kokubun Yuji …

JAEA-Review 2012-015, 166, May, 2012
SIERRA-II; Simulation system (II) for emergency dose by released radioactive substances

Takeyasu Masanori, Takeishi Minoru*

JAEA-Data/Code 2011-019, 23, Feb, 2012
Results of the environmental radiation monitoring following the accident at the Fukushima Daiichi Nuclear Power Plant; Interim report (Ambient radiation dose rate, radioactivity concentration in the air and radioactivity concentration in the fallout)

Furuta Sadaaki, Sumiya Shuichi, Watanabe Hitoshi, Nakano Masanao, Imaizumi Kenji, Takeyasu Masanori, Nakada Akira, Fujita Hiroki, Mizutani Tomoko, Morisawa Masato …

JAEA-Review 2011-035, 89, Aug, 2011
Annual report on the environmental radiation monitoring around the Tokai Reprocessing Plant FY2009

Sumiya Shuichi, Matsuura Kenichi, Watanabe Hitoshi, Nakano Masanao, Takeyasu Masanori, Fujita Hiroki, Isozaki Tokuju, Morisawa Masato, Mizutani Tomoko, Kokubun Yuji …

JAEA-Review 2011-004, 161, Mar, 2011
Development of calculation code for estimating radiation dose for hypothetical accident of nuclear facility considering radioactive decay chain during atmospheric dispersion of released radionuclides

Takeyasu Masanori, Nakano Masanao, Sumiya Shuichi, Nemoto Hiromi*, Kanno Mitsuhiro*, Kurosawa Naohiro*

Proceedings of 3rd Asian and Oceanic Congress on Radiation Protection (AOCRP-3) (CD-ROM), 4, May, 2010
Manual for environmental radiological surveillance

Sumiya Shuichi, Matsuura Kenichi, Nakano Masanao, Takeyasu Masanori, Morisawa Masato, Onuma Toshimitsu, Fujita Hiroki, Mizutani Tomoko, Watanabe Hajime*, Sugai Masamitsu*

JAEA-Review 2009-064, 166, Mar, 2010
Annual report on the environmental radiation monitoring around the Tokai Reprocessing Plant FY2008

Takeishi Minoru, Sumiya Shuichi, Matsuura Kenichi, Watanabe Hitoshi, Nakano Masanao, Takeyasu Masanori, Isozaki Hisaaki*, Isozaki Tokuju, Morisawa Masato, Fujita Hiroki …

JAEA-Review 2009-048, 177, Dec, 2009
Annual report on the environmental radiation monitoring around the Tokai Reprocessing Plant FY2007

Takeishi Minoru, Matsuura Kenichi, Watanabe Hitoshi, Nakano Masanao, Takeyasu Masanori, Isozaki Hisaaki, Isozaki Tokuju, Morisawa Masato, Fujita Hiroki, Kokubun Yuji …

JAEA-Review 2008-057, 155, Nov, 2008
Annual report on the environmental radiation monitoring around the Tokai Reprocessing Plant FY2006

Takeishi Minoru, Miyagawa Naoto, Nakano Masanao, Takeyasu Masanori, Isozaki Hisaaki, Isozaki Tokuju, Morisawa Masato, Fujita Hiroki, Kokubun Yuji, Kato Chiaki …

JAEA-Review 2007-044, 155, Feb, 2008

Presentations

Review of internal dose estimation by whole body counter for the residents in Fukushima Prefecture

Takeyasu Masanori

Peking University Special Symposium on Nuclear Emergency Preparedness and Monitoring on Environmental Radioactivity
Rapid measurement of air dose rate surrounding roads in Fukushima evacuation zone by vehicle-borne survey with different height mounted detectors

Takeyasu Masanori, Takeishi Minoru, Yoda Tomoyuki, Saegusa Jun, Koizumi Jin*, Tanabe Tsutomu

5th Asian and Oceanic Regional Congress on Radiation Protection (AOCRP-5)
Report from special research group on lessons on radiation protection after Fukushima-Daiichi NPP Accident

Kosako Toshiso*, Tani Kotaro*, Ogino Haruyuki*, Iida Takao*, Hattori Takatoshi*, Oda Keiji*, Omi Tadashi*, Furuta Sadaaki*, Murakami Hironori*, Kasai Atsushi*, Takeyasu Masanori, Kawashima Tsunenori*, Shimada Kazumasa, Hashimoto Makoto

日本保健物理学会第50回研究発表会/日本放射線安全管理学会第16回学術大会合同大会
Estimation of dose around the Nuclear Fuel Cycle Engineering Laboratories, JAEA, based on results of environmental monitoring after the Fukushima Daiichi Nuclear Power Plant Accident

Takeyasu Masanori, Sumiya Shuichi

日本放射線安全管理学会第10回学術大会
Study on quantitative discrimintation method for the variation of ambient radiation dose rate

Onuma Toshimitsu, Takeyasu Masanori, Mizutani Tomoko, Takeishi Minoru, Morisawa Masato, Watanabe Hajime*, Sugai Masamitsu*

日本保健物理学会第43回研究発表会
Analysis of the variations of ambient radiation dose rate during rainfall using the wet scavenging model for atmospheric Radon decay products

Takeyasu Masanori, Takeishi Minoru

日本原子力学会2008年秋の大会
Environmental radiation dose estimation method for hypothetical accident considering radioactive decay during atmospheric dispersion of short-lived radionuclide

Takeyasu Masanori, Takeishi Minoru, Onuma Toshimitsu

日本保健物理学会第42回研究発表会
Discrimination of the variation of ambient radiation dose rate due to radioactivity discharged from nuclear facility during rainfall by using the correlation between the variations observed at neighboring monitoring posts

Takeyasu Masanori, Sugai Masamitsu*, Onuma Toshimitsu, Takeishi Minoru, Matsuura Kenichi

日本保健物理学会第42回研究発表会
Factors of the variations of ambient radiation dose rate around the Tokai Reprocessing Plant

Takeyasu Masanori, Onuma Toshimitsu, Takeishi Minoru, Fujita Hiroki, Morisawa Masato, Watanabe Hajime, Sugai Masamitsu*

日本保健物理学会第41回研究発表会
Simulation of the atmospheric dispersion under coastal meteorological condition by an environmental dose evaluation system, SIERRA-II

Takeyasu Masanori, Takeishi Minoru

日本原子力学会2007年春の年会
Performance examination of atmospheric dispersion and dose evaluation model; Comparison with monitoring data around the Tokai Reprocessing Plant

Takeyasu Masanori, Takeishi Minoru

第47回大気環境学会年会
Tritium concentration in sea water around the reprocessing plant

Kokubun Yuji, Fujita Hiroki, Nakano Masanao, Koarashi Jun, Takeyasu Masanori

日本保健物理学会第40回研究発表会