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Nagao, Fumiya; Niizato, Tadafumi; Sasaki, Yoshito; Ito, Satomi; Watanabe, Takayoshi; Dohi, Terumi; Nakanishi, Takahiro; Sakuma, Kazuyuki; Hagiwara, Hiroki; Funaki, Hironori; et al.
JAEA-Research 2020-007, 249 Pages, 2020/10
The accident of the Fukushima Daiichi Nuclear Power Station, Tokyo Electric Power Company Holdings, Inc. occurred due to the Great East Japan Earthquake, Sanriku offshore earthquake, of 9.0 magnitude and the accompanying tsunami. As a result, large amount of radioactive materials was released into the environment. Under these circumstances, Japan Atomic Energy Agency (JAEA) has been conducting "Long-term Assessment of Transport of Radioactive Contaminants in the Environment of Fukushima" concerning radioactive materials released in environment, especially migration behavior of radioactive cesium since November 2012. This report is a summary of the research results that have been obtained in environmental dynamics research conducted by JAEA in Fukushima Prefecture.
Watanabe, Takayoshi; Sasaki, Yoshito; Niizato, Tadafumi; Mitachi, Katsuaki*; Ito, Satomi
KEK Proceedings 2019-2, p.114 - 119, 2019/11
no abstracts in English
Ito, Satomi; Sasaki, Yoshito; Niizato, Tadafumi; Watanabe, Takayoshi; Mitachi, Katsuaki*
KEK Proceedings 2019-2, p.132 - 137, 2019/11
no abstracts in English
Nagao, Fumiya; Niizato, Tadafumi; Sasaki, Yoshito; Ito, Satomi; Watanabe, Takayoshi; Dohi, Terumi; Nakanishi, Takahiro; Sakuma, Kazuyuki; Hagiwara, Hiroki; Funaki, Hironori; et al.
JAEA-Research 2019-002, 235 Pages, 2019/08
The accident of the Fukushima Daiichi Nuclear Power Station (hereinafter referred to 1F), Tokyo Electric Power Company Holdings, Inc. occurred due to the Great East Japan Earthquake, Sanriku offshore earthquake, of 9.0 magnitude and the accompanying tsunami. As a result, large amount of radioactive materials was released into the environment. Under these circumstances, JAEA has been conducting Long-term Environmental Dynamics Research concerning radioactive materials released in environment, especially migration behavior of radioactive cesium since November 2012. This report is a summary of the research results that have been obtained in environmental dynamics research conducted by JAEA in Fukushima Prefecture.
Ishizaki, Manabu*; Akiba, Sae*; Otani, Asako*; Hoshi, Yuji*; Ono, Kenta*; Matsuba, Mayu*; Togashi, Takanari*; Kanaizuka, Katsuhiko*; Sakamoto, Masatomi*; Takahashi, Akira*; et al.
Dalton Transactions, 42(45), p.16049 - 16055, 2013/12
Times Cited Count:195 Percentile:99.56(Chemistry, Inorganic & Nuclear)We have revealed the fundamental mechanism of specific Cs adsorption into Prussian blue (PB) in order to develop high-performance PB-based Cs
adsorbents in the wake of the Fukushima nuclear accident. We compared two types of PB nanoparticles with formulae of Fe
[Fe
(CN)
]3
xH
O (x = 10-15) (PB-1) and (NH
)0.70Fe
1.10[Fe
(CN)
]
1.7H
O (PB-2) with respect to the Cs
adsorption ability. The synthesised PB-1, by a common stoichiometric aqueous reaction between 4Fe
and 3[Fe
(CN)
]
, showed much more efficient Cs
adsorption ability than did the commercially available PB-2.
Hung, N. V. P.*; Watanabe, Shiori*; Ishikawa, Shinji*; Otake, Norikuni*; Sueyoshi, Kuni*; Sato, Takashi*; Ishii, Satomi; Fujimaki, Shu; Oyama, Takuji*
Soil Science and Plant Nutrition, 59(6), p.888 - 895, 2013/12
Times Cited Count:5 Percentile:15.93(Plant Sciences)Watanabe, Shigeki; Iida, Yasuhiko*; Suzui, Nobuo; Katabuchi, Tatsuya*; Ishii, Satomi; Kawachi, Naoki; Hanaoka, Hirofumi*; Watanabe, Satoshi; Matsuhashi, Shimpei; Endo, Keigo*; et al.
Journal of Radioanalytical and Nuclear Chemistry, 280(1), p.199 - 205, 2009/04
Times Cited Count:25 Percentile:81.97(Chemistry, Analytical)Sekimoto, Hitoshi*; Kawachi, Naoki; Watanabe, Satoshi; Yamaguchi, Yoshie*; Ozawa, Toyoaki*; Shima, Daisuke*; Ishikawa, Sayuki*; Fujimaki, Shu; Suzui, Nobuo; Ishii, Satomi; et al.
JAEA-Review 2008-055, JAEA Takasaki Annual Report 2007, P. 108, 2008/11
Kawachi, Naoki; Fujimaki, Shu; Suzui, Nobuo; Ishii, Satomi; Watanabe, Shigeki; Watanabe, Satoshi; Ishioka, Noriko; Matsuhashi, Shimpei
JAEA-Review 2008-055, JAEA Takasaki Annual Report 2007, P. 107, 2008/11
Okamura, Masachika*; Shimizu, Akira*; Watanabe, Satomi*; Hase, Yoshihiro; Narumi, Issei; Tanaka, Atsushi
JAEA-Review 2007-060, JAEA Takasaki Annual Report 2006, P. 82, 2008/03
no abstracts in English
Sekimoto, Hitoshi*; Kawachi, Naoki; Honda, Shuzo*; Yamaguchi, Yoshie*; Kato, Shota*; Yoneyama, Kaori*; Fujimaki, Shu; Suzui, Nobuo; Ishii, Satomi; Watanabe, Satoshi; et al.
JAEA-Review 2007-060, JAEA Takasaki Annual Report 2006, P. 124, 2008/03
no abstracts in English
Okamura, Masachika*; Momose, Masayuki*; Watanabe, Satomi*; Shimizu, Akira*; Hase, Yoshihiro; Yokota, Yuichiro; Tanaka, Atsushi
JAEA-Review 2006-042, JAEA Takasaki Annual Report 2005, P. 82, 2007/02
no abstracts in English
Fujimaki, Shu; Sakamoto, Koichi; Kawachi, Naoki; Ishii, Satomi; Suzui, Nobuo; Ishioka, Noriko; Watanabe, Satoshi; Matsuhashi, Shimpei
JAEA-Review 2006-042, JAEA Takasaki Annual Report 2005, P. 126, 2007/02
no abstracts in English
Oyama, Takuji*; Sueyoshi, Kuni*; Otake, Norikuni*; Ito, Sayuri*; Ishibashi, H.*; Hara, T.*; Kimura, T.*; Matsuhashi, Shimpei; Fujimaki, Shu; Suzui, Nobuo; et al.
JAEA-Review 2006-042, JAEA Takasaki Annual Report 2005, P. 122, 2007/02
Watanabe, Shigeki; Ishioka, Noriko; Katabuchi, Tatsuya*; Watanabe, Satoshi; Suzui, Nobuo; Ishii, Satomi; Matsuhashi, Shimpei
no journal, ,
Positron emitter, Cu has been used in medical applications with positron emission tomography (PET). We have developed a novel method in
Cu production to obtain
Cu-labelled antibodies as a PET reagent. On the other hand,
Cu can be used for in vivo imaging of copper in a living plant by positron emitting tracer imaging system (PETIS). Production of
Cu was carried out via the
Ni(p,n)
Cu nuclear reaction. The produced
Cu (330 MBq) was purified by an ion-exchange method from the irradiated
NiO target. The
Cu was obtained with high yield (89%) and high radionuclidic-purity
Cu (
99%). The
NiO was recovered in good yield (
99%). The
Cu was added to a plant (soybean) for an imaging experiment and the movement of
Cu was visualized by the PETIS. This result shows that
Cu can be applied as a useful tracer for not only medical applications and also plant physiological studies.
Watanabe, Shigeki; Ishioka, Noriko; Suzui, Nobuo; Ishii, Satomi; Kawachi, Naoki; Katabuchi, Tatsuya*; Watanabe, Satoshi; Matsuhashi, Shimpei
no journal, ,
no abstracts in English
Okamura, Masachika*; Watanabe, Satomi*; Tanaka, Atsushi; Hase, Yoshihiro
no journal, ,
no abstracts in English
Hung, N. V. P.; Watanabe, Shiori*; Ishikawa, Shinji*; Otake, Norikuni*; Sueyoshi, Kuni*; Sato, Takashi*; Ishii, Satomi; Suzui, Nobuo; Kawachi, Naoki; Yin, Y.-G.; et al.
no journal, ,
Niizato, Tadafumi; Sasaki, Yoshito; Watanabe, Takayoshi; Mitachi, Katsuaki*; Ito, Satomi; Kuramoto, Takayuki*; Arai, Hirotsugu*; Nomura, Naoki*; Hayashi, Seiji*; Tamaoki, Masanori*
no journal, ,
Cs released from the TEPCO's Fukushima Dai-ichi Nuclear Power Plant accident has a long half-life of about 30 years, it is necessary to monitor the distribution and its radioecological impact over the long term. Mountainous forests, which accounts for about 70% of Fukushima prefecture, tend to be a sink of radiocesium contamination rather than a source for the contamination of other ecosystems. An understanding of the environmental dynamics of radiocesium in the forest floor of various conditions is important issue, while progressing to the resident return. In this paper, we report on the results of the field investigation into the
Cs distribution and the
Cs outflow in the mountainous forest of Fukushima, where the wildfire broke out in the spring of 2017.
Kawachi, Naoki; Fujimaki, Shu; Suzui, Nobuo; Ishii, Satomi; Ishioka, Noriko; Matsuhashi, Shimpei; Sato, Takahiro; Watanabe, Shin*; Takeda, Shinichiro*; Takahashi, Tadayuki*; et al.
no journal, ,