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Researcher Information

last modified:2017/05/23

Associate Professor HAMAJIMA Yasunori

Mail

Faculty, Affiliation

Institute of Nature and Environmental Technology

College and School Educational Field

Division of Material Chemistry, Graduate School of Natural Science and Technology
School of Chemistry, College of Science and Engineering

Laboratory

Academic Background

【Academic background(Doctoral/Master's Degree)】
Tokyo Metropolitan University Doctor 198305 Accomplished credits for doctoral program
【Academic background(Bachelor's Degree)】
Kanazawa University 197903
【Degree】
Doctor of Philosophy

Career

Year & Month of Birth

1954/08

Academic Society



Award

Specialities

Risk sciences of radiation and chemicals

Speciality Keywords

Research Themes

Evaluation of the impact of environmental neutrons

Environmental neutron distribution in substances

Development of a measurement instrument for extremely low-level radiation

Books

Papers

  •  A Convenient Method for Discriminating Between Natural and depleted Uranium by γ-ray Spectrometry Appl. Radiation Isotopes 55 221-227 2001
  •  Behavior of pionic hydrogen atoms in gas and liquid phases J. Radioanal. Nucl. Chem. 239, 169-173 1999
  •  Bimodal nature of low energy fission of light actinides Radiochim. Acta 78 3-10 1997
  •  Distribution of Cesium-137 in Japanese forest soils - Correlation with the contents of organic carbon- The Science of the total Environment 222 193-199 1998
  •  Negative pion transfer process in a hydrogen-containing gas mixture J. Radioanal. Nucl. Chem. 239, 159-163 1999

show all

  •  Pion Transfer Processes of Pionic Atoms in the Gas Mixturees Containing Hydrogen at Various Pressures, Radiochim. Acta 89 849-852 2001
  •  Sudden Changes in the Characteristics of GDR Fission of 238U around the Critical Energy for Nuclear Phase Transition Radiochim. Acta 80 171-179 1998
  •  Two Deformation Paths in Fission of Light Actinides J. Radioanal. Nucl. Chem. 239, 97-101 1999
  •  Background Components of Ge Detectors in Ogoya Underground Laboratory. APPLIED RADIATION AND ISOTOPES 61 185-189 2004
  •  Depth Profiles of Environmental Neutron Flux in Water Kazihisa Komura Radioactivity in the Environment 8  511-519 2006/01
  •  Ogoya Underground Laboratory for the Measurement of Extremely Low Levels of Environmental Radioactivity:Review of Recent Projects Carried Out at OUL APPLIED RADIATION AND ISOTOPES 61 179-183 2004
  •  Cross equator transport of 137Cs from North Pacific Ocean to South Pacific Ocean (BEAGLE2003 cruises) PROGRESS IN OCEANOGRAPHY 89 7-16 2011/01
  •  Marine anthropogenic radiotracers in the Southern Hemisphere: New sampling and analytical strategies PROGRESS IN OCEANOGRAPHY 89 120-133 2011/01
  •  Seasonal variation of 228Ra/226Ra ratio in surface water from the East China Sea and the Tsushima Strait Journal of Oceanography 66 3 425-428 2010/06/01 
  •  Ultra low level deep water 137Cs activity in the South Pacific Ocean JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY 282 781-785 2009/01
  •  Study of electronic X-rays emitted from pionic and muonic atoms JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY 272 661-664 2007/01
  •  Surface pathway of radioactive plume of TEPCO Fukushima NPP1 released 134Cs and 137Cs Biogeosciences 10 3067-3078 2013/01
  •  Distribution of 137Cs and 134Cs in the North Pacific Ocean: Impacts of the TEPCO Fukushima-Daiichi NPP accident JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY 296 535-539 2013/01
  •  Radar-Enabled Recovery of the Sutter’s Mill Meteorite, a Carbonaceous Chondrite Regolith Breccia SCIENCE 338 1583-1587 2012/12
  •  Dispersion of artificial caesium-134 and -137 in the western North Pacific one month after the accident GEOCHEMICAL JOURNAL 46 e1-e9 2012/01
  •  Temporal variation of 134Cs and 137Cs activities in surface water at stations along the coastline near the Fukushima Dai-ichi Nuclear Power Plant accident site, Japan Geochemical Journal 46 4 321-325 2012/12/01 
  •  Temporal variation of 134Cs and 137Cs activities in surface water at stations along the coastline near the Fukushima Dai-ichi Nuclear Power Plant accident site, Japan GEOLOGICAL JOURNAL 46 321-325 2012/04
  •  Low levels of 134Cs and 137Cs in surface seawaters around the Japanese Archipelago after the Fukushima Dai-ichi Nuclear Power Plant accident in 2011 GEOCHEMICAL JOURNAL 46 311-320 2012/04
  •  134Cs and 137Cs activities in coastal seawater along Northern Sanriku and Tsugaru Strait, northeastern Japan, after Fukushima Dai-ichi Nuclear Power Plant accident Journal of Environmental Radioactivity 111 116-119 2012/09/01 
  •  134Cs and 137Cs activities in coastal seawater along Northern Sanriku and Tsugaru Strait, northeastern Japan, after Fukushima Dai-ichi Nuclear Power Plant accident JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 111 116-119 2012/01
  •  Lateral variation of 134Cs and 137Cs concentrations in surface seawater in and around the Japan Sea after the Fukushima Dai-ichi Nuclear Power Plant accident JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 109 45-51 2012/01
  •  Spatial variations of 226Ra, 228Ra, 137Cs, and 228Th activities in the southwestern Okhotsk Sea JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 104 75-80 2012/01
  •  Spatial variations of 226Ra, 228Ra, 137Cs, and 228Th activities in the southwestern Okhotsk Sea Journal of Environmental Radioactivity 104 1 75-80 2012/02/01 
  •  Neutron Activation Analysis of a Particle Returned from Asteroid Itokawa SCIENCE 333 1119-1121 2011/01
  •  Distribution of 137Cs and 134Cs in the North Pacific Ocean: impacts of the TEPCO Fukushima-Daiichi NPP accident JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY DOI; 10.1007/s10967- 1-5 2012/01
  •  Temporal changes in radiocesium contamination derived from the Fukushima Dai-ichi Nuclear Power Plant accident in oceanic zooplankton in the western North Pacific Minoru Kitamura, Makio C Honda, Yasunori Hamajima, Yuichiro Kumamoto, Michio Aoyama, Hajime Kawakami, Tatsuo Aono, Miho Fukuda, Yoshihisa Mino Journal of Environmental Radioactivity 172 163-172 2017/04/02
  •  Fukushima-derived radiocesium in the western North Pacific in 2014 Yuichiro Kumamoto, Michio Aoyama, Yasunori Hamajima, Hisao Nagai, Takeyasu Yamagata, Yoshimi Kawai, Eitarou Oka, Atsushi Yamaguchi, Keiri Imai, Akihiko Murata Journal of Radioanalytical and Nuclear Chemistry 311 1209-1217 2017/02
  •  Radiocesium in the western subarctic area of the North Pacific Ocean, Bering Sea, and Arctic Ocean in 2013 and 2014 Yuichiro Kumamoto, Michio Aoyama, Yasunori Hamajima, Shigeto Nishino, Akihiko Murata, Takashi Kikuchi Applied Radiation and Isotopes 2017/02/27
  •  Recirculation of FNPP1-derived radiocaesium observed in winter 2015/2016 in coastal regions of Japan Michio Aoyama, Yasunori Hamajima, Yayoi Inomata, Eitarou Oka Applied Radiation and Isotopes 2016/12/18
  •  Meridional distribution of Fukushima-derived radiocesium in surface seawater along a trans-Pacific line from the Arctic to Antarctic Oceans in summer 2012 Yuichiro Kumamoto, Michio Aoyama, Yasunori Hamajima, Shigeto Nishino, Akihiko Murata, Takashi Kikuchi Journal of Radioanalytical and Nuclear Chemistry 307 3 1703-1710 2016/03/01
  •  Cs and Cs in the North Pacific Ocean derived from the March 2011 TEPCO Fukushima Dai-ichi Nuclear Power Plant accident, Japan. Part two: estimation of Cs and Cs inventories in the North Pacific Ocean. Mizuo Kajino, Michio Aoyama, Taichu Tanaka, Tsuyoshi Sekiyama, Daisuke Tsumune, Takaki Tsubono, Yasunori Hamajima, Yayoi Inomata, Toshitaka Gamo Journal of Oceanography 72 1 2016/02/01
  •  Simulations of background characteristics of HPGe detectors operating in shallow underground using the Monte Carlo method Robert Breier, Yasunori Hamajima, Pavel P Povinec Journal of Radioanalytical and Nuclear Chemistry 307 3 1957-1960 2016/03/01
  •  134Cs and 137Cs in the North Pacific Ocean derived from the March 2011 TEPCO Fukushima Dai-Ichi Nuclear Power Plant accident, Japan. Part one: surface pathway and vertical distributions Michio Aoyama, Yasunori Hamajima, Mikael Hult, Mitsuo Uematsu, Eitarou Oka, Daisuke Tsumune, Yuichiro Kumamoto Journal of oceanography 72 1 53-65 2016/02/01
  •  134Cs and 137Cs in the North Pacific Ocean derived from the March 2011 TEPCO Fukushima Dai-ichi Nuclear Power Plant accident, Japan. Part two: estimation of 134Cs and 137Cs inventories in the North Pacific Ocean M. Aoyama, M. Kajino, T. Y. Tanaka, T. T. Sekiyama, D. Tsumune, T. Tsubono, Y. Hamajima, Y. Inomata, T. Gamo Journal of Oceanography 72 67-76 2016/02/01
  •  Reference material for natural radionuclides in glass designed for underground experiments Pavel P. Povinec, Mai K. Pham Jose Busto, Cédric Cerna, Detlev Degering, Yasunori Hamajima, Karol Holý, Mikael Hult, Miroslav Ješkovský, Matthias Köhler, Andrej Kováčik, Matthias Laubenstein, Pia Loaiza, Fadahat Mamedov, James Mott, Monika Műllerová, Frédérique Perrot, , Fabrice Piquemal, Jean-Louis Reyss, Ruben Saakyan, Hardy Simgen, Jaroslav Staníček, Ivan Sýkora Journal of Radioanalytical and Nuclear Chemistry 307 619-626 2016/01/01
  •  Measurement of anthropogenic radionuclides in post-Fukushima Pacific seawater samples Guillaume Lutter, Faidra Tzika, Mikael Hult, Michio Aoyama, Yasunori Hamajima, Gerd Marissens, Heiko Stroh Nukleonika 60 3 545-550 2015/09/01
  •  Impact of Fukushima-derived radiocesium in the western North Pacific Ocean about ten months after the Fukushima Dai-ichi nuclear power plant accident Y Kumamoto, M Aoyama, Y Hamajima, A Murata, T Kawano Journal of environmental radioactivity  140 114-122 2015/02/28
  •  Vertical profiles of 228Ra and 226Ra activities in the Sea of Japan and their implications on water circulation M. Inoue, M. Minakawa, K. Yoshida, Y. Nakano, H. Kofuji, S. Nagao, Y. Hamajima, M. Yamamoto Journal of Radioanalytical and Nuclear Chemistry 303 1309-1312 2015/02/01
  •  Lateral and temporal variations in Fukushima Dai-ichi NPP-derived 134Cs and 137Cs in marine sediments in/around the Sado Basin, Sea of Japan M. Inoue, S. Yoneoka, S. Ochiai, S. Oikawa, K. Fujimoto, Y. Yagi, N. Honda, S. Nagao, M. Yamamoto, Y. Hamajima, T. Murakami, H. Kofuji, J. Misono Journal of Radioanalytical and Nuclear Chemistry 303 1309-1312 2015/02/01
  •  Delivery mechanism of 134 Cs and 137 Cs in seawater off the Sanriku Coast, Japan, following the Fukushima Dai-ichi NPP accident M. Inoue, H. Kofuji, K. Fujimoto, Y. Furusawa, K. Yoshida, S. Nagao, M. Yamamoto, Y. Hamajima, M. Minakawa Journal of environmental radioactivity 137 113-118 2014/11/30
  •  Exposure history of the Sutter's Mill carbonaceous chondrite K Nishiizumi, MW Caffee, Y Hamajima, RC Reedy, KC Welten Meteoritics & Planetary Science  49 2056-2063 2014/11/01
  •  Southward spreading of the Fukushima-derived radiocesium across the Kuroshio Extension in the North Pacific Yuichiro Kumamoto, Michio Aoyama, Yasunori Hamajima, Tatsuo Aono, Shinya Kouketsu, Akihiko Murata, Takeshi Kawano Scientific reports 4 4276 2014/03/04
  •  Radio-cesium distribution by ultra-micro analysis in the North-Pacific Ocean Michio Aoyama, Yasunori Hamajima Bunseki 10 543-546 2014/10
  •  Spatial variations of low levels of 134 Cs and 137 Cs in seawaters within the Sea of Japan after the Fukushima Dai-ichi nuclear power plant accident Mutsuo Inoue, Hisaki Kofuji, Shinji Oikawa, Takuma Murakami, Masayoshi Yamamoto, Seiya Nagao, Yasunori Hamajima, Jun Misonoo Applied Radiation and Isotopes 81 340-343 2013/11/30
  •  ²²⁸Ra/²²⁶Ra ratio and ⁷Be concentration in the Sea of Japan as indicators for water transport: comparison with migration pattern of Fukushima Dai-ichi NPP-derived ¹³⁴Cs and ¹³⁷Cs Inoue, M. Furusawa, Y. Fujimoto, K. Minakawa, M. Kofuji, H. Nagao, S. Yamamoto, M. Hamajima, Y. Yoshida, K. Nakano, Y. Hayakawa, K. Oikawa, S. Misonoo, J. Isoda, Y.  Journal of environmental radioactivity 126 176-187 2013
  •  Radar-Enabled Recovery of the Sutter's Mill Meteorite, a Carbonaceous Chondrite Regolith Breccia Jenniskens, Peter;Fries, Marc D.;Yin, Qing-Zhu;Zolensky, Michael;Krot, Alexander N.;Sandford, Scott A.;Sears, Derek;Beauford, Robert;Ebel, Denton S.;Friedrich, Jon M.;Nagashima, Kazuhide;Wimpenny, Josh;Yamakawa, Akane;Nishiizumi, Kunihiko;Hamajima, Yasunori;Caffee, Marc W.;Welten, Kees C.;Laubenstein, Matthias;Davis, Andrew M.;Simon, Steven B.;Heck, Philipp R.;Young, Edward D.;Kohl, Issaku E.;Thiemens, Mark H.;Nunn, Morgan H.;Mikouchi, Takashi;Hagiya, Kenji;Ohsumi, Kazumasa;Cahill, Thomas A.;Lawton, Jonathan A.;Barnes, David;Steele, Andrew;Rochette, Pierre;Verosub, Kenneth L.;Gattacceca, Jerome;Cooper, George;Glavin, Daniel P.;Burton, Aaron S.;Dworkin, Jason P.;Elsila, Jamie E.;Pizzarello, Sandra;Ogliore, Ryan;Schmitt-Kopplin, Phillipe;Harir, Mourad;Hertkorn, Norbert;Verchovsky, Alexander;Grady, Monica;Nagao, Keisuke;Okazaki, Ryuji;Takechi, Hiroyuki;Hiroi, Takahiro;Smith, Ken;Silber, Elizabeth A.;Brown, Peter G.;Albers, Jim;Klotz, Doug;Hankey, Mike;Matson, Robert;Fries, Jeffrey A.;Walker, Richard J.;Puchtel, Igor;Lee, Cin-Ty A.;Erdman, Monica E.;Eppich, Gary R.;Roeske, Sarah;Gabelica, Zelimir;Lerche, Michael;Nuevo, Michel;Girten, Beverly;Worden, Simon P.;Sutter's Mill Meteorite Consortium SCIENCE 338 6114 1583-1587 2012
  •  Spatial variations of Ra-226, Ra-228, and Th-228 activities in seawater from the eastern East China Sea Inoue, Mutsuo;Yoshida, Keisuke;Minakawa, Masayuki;Kiyomoto, Yoko;Kofuji, Hisaki;Nagao, Seiya;Hamajima, Yasunori;Yamamoto, Masayoshi GEOCHEMICAL JOURNAL 46 5 429-441 2012
  •  Distribution of Cs-137 and Cs-134 in the North Pacific Ocean: impacts of the TEPCO Fukushima-Daiichi NPP accident Aoyama, Michio;Tsumune, Daisuke;Hamajima, Yasunori JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY 296 1 535-539 2013 
  •  Impact of Fukushima-derived radiocesium in the western North Pacific Ocean about ten months after the Fukushima Dai-ichi nuclear power plant accident Kumamoto, Yuichiro;Aoyama, Michio;Hamajima, Yasunori;Murata, Akihiko;Kawano, Takeshi JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 140 114-122 2015/01/01 
  •  Impact of Fukushima-derived radiocesium in the western North Pacific Ocean about ten months after the Fukushima Dai-ichi nuclear power plant accident Kumamoto, Yuichiro; Aoyama, Michio; Hamajima, Yasunori; Murata, Akihiko; Kawano, Takeshi Journal of Environmental Radioactivity 140 114-122 2015/02/01 

Conference Presentations

Arts and Fieldwork

Patent

Theme to the desired joint research

Grant-in-Aid for Scientific Research

Classes (Bachelors)

○Experiments in Basic Chemistry B(2017)
○Radiochemistry III(2017)
○Experiments in Basic Chemistry B(2017)

Classes (Graduate Schools)

○Seminar in Material Analysis(2017)
○Seminar in Material Analysis(2017)
○Seminar in Material Analysis(2017)
○Seminar in Material Analysis(2017)
○Nuclear Geochemistry(2017)
○Material Analysis Chemistry IV(2017)
○Seminar in Material Analysis(2016)
○Seminar in Material Analysis(2016)

International Project

International Students

Lecture themes

Others (Social Activities)

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