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Arai, Tsuyoshi*; Nakamura, Fumiya*; Abe, Ryoji*; Ueno, Fuga*; Seko, Noriaki*; Arai, Yoichi; Watanabe, So
Progress in Nuclear Science and Technology (Internet), 7, p.147 - 153, 2025/03
no abstracts in English
Arai, Yoichi; Watanabe, So; Ono, Shimpei; Nakamura, Masahiro; Shibata, Atsuhiro; Nakamura, Fumiya*; Arai, Tsuyoshi*; Seko, Noriaki*; Hoshina, Hiroyuki*; Fukumoto, Hiroki*; et al.
QST-M-29; QST Takasaki Annual Report 2019, P. 54, 2021/03
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
JAEA-Research-2020-007.pdf:15.83MB
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.
Arai, Yoichi; Watanabe, So; Ono, Shimpei; Nomura, Kazunori; Nakamura, Fumiya*; Arai, Tsuyoshi*; Seko, Noriaki*; Hoshina, Hiroyuki*; Hagura, Naoto*; Kubota, Toshio*
Nuclear Instruments and Methods in Physics Research B, 477, p.54 - 59, 2020/08
Times Cited Count：7 Percentile：49.94(Instruments & Instrumentation)Arai, Yoichi; Watanabe, So; Ono, Shimpei; Nomura, Kazunori; Nakamura, Fumiya*; Arai, Tsuyoshi*; Seko, Noriaki*; Hoshina, Hiroyuki*; Kubota, Toshio*
QST-M-23; QST Takasaki Annual Report 2018, P. 59, 2020/03
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
JAEA-Research-2019-002.pdf:21.04MB
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.
Arai, Yoichi; Watanabe, So; Ono, Shimpei; Nakamura, Masahiro; Shibata, Atsuhiro; Nakamura, Fumiya*; Arai, Tsuyoshi*; Seko, Noriaki*; Hoshina, Hiroyuki*; Hagura, Naoto*; et al.
International Journal of PIXE, 29(1&2), p.17 - 31, 2019/00
The spent PUREX solvent containing U and Pu is generated from the reprocessing process of spent nuclear fuel. The nuclear material removal is important for the safe storage or disposal of the spent solvent. Our previous study revealed that the adsorbent with the iminodiacetic acid (IDA) functional group is one of the most promising materials for designing the nuclear material recovery process. Accordingly, an IDA-type adsorbent was synthesized by using graft polymerization technology or a chemical reaction to improve the adsorption rate and capacity. The synthesized IDA-type adsorbent was characterized by micro particle-induced X-ray emission (PIXE) and extended X-ray absorption fine structure (EXAFS) analyses. The micro-PIXE analysis revealed that Zr was adsorbed on the whole synthesized adsorbents and quantified the microamount of adsorbed Zr. Moreover, EXAFS suggested that Zr in the aqueous solution and solvent can be trapped by the IDA group with different mechanisms.
Nemoto, Fumiya*; Kofu, Maiko; Nagao, Michihiro*; Oishi, Kazuki*; Takata, Shinichi; Suzuki, Junichi*; Yamada, Takeshi*; Shibata, Kaoru; Ueki, Takeshi*; Kitazawa, Yuzo*; et al.
Journal of Chemical Physics, 149(5), p.054502_1 - 054502_11, 2018/08
Times Cited Count：25 Percentile：72.35(Chemistry, Physical)
= 100 with a multireflection time-of-flight mass spectrographIto, Yuta*; Schury, P.*; Wada, Michiharu*; Arai, Fumiya*; Haba, Hiromitsu*; Hirayama, Yoshikazu*; Ishizawa, Satoshi*; Kaji, Daiya*; Kimura, Sota*; Koura, Hiroyuki; et al.
Physical Review Letters, 120(15), p.152501_1 - 152501_6, 2018/04
Times Cited Count：69 Percentile：92.13(Physics, Multidisciplinary)Masses of 
Es, 
Fm and the transfermium nuclei 
Md, and 
No, produced by hot- and cold-fusion reactions, in the vicinity of the deformed 
neutron shell closure, have been directly measured using a multi-reflection time-of-flight mass spectrograph. The masses of Es and 
Md were measured for the first time. Using the masses of 
Md as anchor points for 
decay chains, the masses of heavier nuclei, up to 
Bh and 
Mt, were determined. These new masses were compared with theoretical global mass models and demonstrated to be in good agreement with macroscopic-microscopic models in this region. The empirical shell gap parameter 
derived from three isotopic masses was updated with the new masses and corroborate the existence of the deformed neutron shell closure for Md and Lr.
Yamaguchi, Yukichi; Imai, Yuki*; Tanabe, Fumiya
Hyuman Intafuesus Shimpojiumu 2005 Koen Rombunshu, p.779 - 782, 2005/09
In order to support of promoting deep system understanding of large complex system by various type of decision makers such as system operators, managers, regulation officers and citizen, a distanced education/training system on reactor simulator over internet DETRAS has been developed. With DETRAS, it is possible to operate a full scope reactor simulator, monitoring users' operation and give instructions over internet.
Yoshida, Kazuo; Yokobayashi, Masao; Tanabe, Fumiya; Kawase, Katsumi*; Komiya, Akitoshi*
JAERI-Data/Code 2001-023, 118 Pages, 2001/08
JAERI-Data-Code-2001-023.pdf:8.65MB
no abstracts in English
Tanabe, Fumiya; Yamaguchi, Yukichi
Nihon Genshiryoku Gakkai-Shi, 43(1), p.48 - 51, 2001/01
Times Cited Count：5 Percentile：37.99(Nuclear Science & Technology)no abstracts in English
Tanabe, Fumiya; Yamaguchi, Yukichi
Nihon Genshiryoku Gakkai-Shi, 43(1), p.52 - 55, 2001/01
Times Cited Count：1 Percentile：11.52(Nuclear Science & Technology)no abstracts in English
Tanabe, Fumiya; Yamaguchi, Yukichi
Nihon Ninchi Kagakukai Dai-17-Kai Taikai Happyo Rombunshu, p.16 - 17, 2000/06
no abstracts in English
Tanabe, Fumiya
SCIaS, 5(3), p.22 - 23, 2000/03
no abstracts in English
; Tanabe, Fumiya;
Keisoku Jido Seigyo Gakkai Rombunshu, 32(4), p.567 - 576, 1996/04
no abstracts in English
; Yokobayashi, Masao; Tanabe, Fumiya;
Journal of Nuclear Science and Technology, 33(2), p.110 - 118, 1996/02
Times Cited Count：2 Percentile：24.12(Nuclear Science & Technology)no abstracts in English
Tanabe, Fumiya
PSA95: Proc. of Probabilistic Safety Assessment Methodology and Applications, 1, p.299 - 304, 1995/00
no abstracts in English
; Yokobayashi, Masao; ; Tanabe, Fumiya
Symbiosis of Human and Artifact: Future Computing and Design for Human-Computer Interaction,20A, 0, p.939 - 944, 1995/00
no abstracts in English
; Yokobayashi, Masao; Tanabe, Fumiya;
VTT Symp. 158: 5th European Conf. on Cognitive Science Approaches to Process Control, 0, p.338 - 347, 1995/00
no abstracts in English
