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Kitazato, Kohei*; Milliken, R. E.*; Iwata, Takahiro*; Abe, Masanao*; Otake, Makiko*; Matsuura, Shuji*; Takagi, Yasuhiko*; Nakamura, Tomoki*; Hiroi, Takahiro*; Matsuoka, Moe*; et al.
Nature Astronomy (Internet), 5(3), p.246 - 250, 2021/03
Times Cited Count：57 Percentile：96.00(Astronomy & Astrophysics)Here we report observations of Ryugu's subsurface material by the Near-Infrared Spectrometer (NIRS3) on the Hayabusa2 spacecraft. Reflectance spectra of excavated material exhibit a hydroxyl (OH) absorption feature that is slightly stronger and peak-shifted compared with that observed for the surface, indicating that space weathering and/or radiative heating have caused subtle spectral changes in the uppermost surface. However, the strength and shape of the OH feature still suggests that the subsurface material experienced heating above 300 
C, similar to the surface. In contrast, thermophysical modeling indicates that radiative heating does not increase the temperature above 200 C at the estimated excavation depth of 1 m, even if the semimajor axis is reduced to 0.344 au. This supports the hypothesis that primary thermal alteration occurred due to radiogenic and/or impact heating on Ryugu's parent body.
-methyltyrosine (FAMT) uptake on PET in patients with oesophageal cancerSuzuki, Shigemasa*; Kaira, Kyoichi*; Ohshima, Yasuhiro; Ishioka, Noriko; Soda, Makoto*; Yokobori, Takehiko*; Miyazaki, Tatsuya*; Oriuchi, Noboru*; Tominaga, Hideyuki*; Kanai, Yoshikatsu*; et al.
British Journal of Cancer, 110(8), p.1985 - 1991, 2014/04
Times Cited Count：25 Percentile：59.28(Oncology)Yano, Kimihiko; Kitagaki, Toru; Ikeuchi, Hirotomo; Wakui, Ryohei; Higuchi, Hidetoshi; Kaji, Naoya; Koizumi, Kenji; Washiya, Tadahiro
Proceedings of International Nuclear Fuel Cycle Conference; Nuclear Energy at a Crossroads (GLOBAL 2013) (CD-ROM), p.1554 - 1559, 2013/09
Wakui, Ryohei; Kitagaki, Toru; Higuchi, Hidetoshi; Takeuchi, Masayuki; Koizumi, Kenji; Washiya, Tadahiro
Proceedings of 20th International Conference on Nuclear Engineering and the ASME 2012 Power Conference (ICONE-20 & POWER 2012) (DVD-ROM), 7 Pages, 2012/07
Cu-labeled DOTA-
-Phe
-Tyr
-octreotide (Cu-DOTA-TOC) for imaging somatostatin receptor-expressing tumorsHanaoka, Hirofumi*; Tominaga, Hideyuki*; Yamada, Keiichi*; Paudyal, P.*; Iida, Yasuhiko*; Watanabe, Shigeki; Paudyal, B.*; Higuchi, Tetsuya*; Oriuchi, Noboru*; Endo, Keigo*
Annals of Nuclear Medicine, 23(6), p.559 - 567, 2009/08
Times Cited Count：19 Percentile：50.70(Radiology, Nuclear Medicine & Medical Imaging)Kitagaki, Toru; Tasaka, Masayuki; Higuchi, Hidetoshi; Koizumi, Kenji; Hirano, Hiroyasu; Washiya, Tadahiro; Kobayashi, Tsuguyuki*
Proceedings of 17th International Conference on Nuclear Engineering (ICONE-17) (CD-ROM), 5 Pages, 2009/06
JAEA has been developing a reliable disassembly system for FBR fuel reprocessing as a part of Fast Reactor Cycle Technology Development (FaCT). We fabricated the disassembly system testing machine. In this paper, we described design of it.
Iida, Yasuhiko*; Hanaoka, Hirofumi*; Paudyal, P.*; Paudyal, B.*; Watanabe, Satoshi; Ishioka, Noriko; Watanabe, Shigeki; Matsuhashi, Shimpei; Yoshioka, Hiroki*; Higuchi, Tetsuya*; et al.
JAEA-Review 2008-055, JAEA Takasaki Annual Report 2007, P. 114, 2008/11
Iida, Yasuhiko*; Hanaoka, Hirofumi*; Katabuchi, Tatsuya*; Watanabe, Shigeki; Ishioka, Noriko; Watanabe, Satoshi; Matsuhashi, Shimpei; Higuchi, Tetsuya*; Oriuchi, Noboru*; Endo, Keigo*
JAEA-Review 2007-060, JAEA Takasaki Annual Report 2006, P. 128, 2008/03
Iida, Yasuhiko*; Hanaoka, Hirofumi*; Katabuchi, Tatsuya*; Watanabe, Satoshi; Ishioka, Noriko; Matsuhashi, Shimpei; Oriuchi, Noboru*; Higuchi, Tetsuya*; Miyakubo, Mitsuyuki*; Endo, Keigo*
JAEA-Review 2006-042, JAEA Takasaki Annual Report 2005, P. 165, 2007/02
Higuchi, Hidetoshi; Koizumi, Kenji; Hirano, Hiroyasu; Kitagaki, Toru; Washiya, Tadahiro; Kobayashi, Tsuguyuki*; Tasaka, Masayuki*
no journal, ,
no abstracts in English
Yoshizawa, Yuji*; Kai, Michiaki*; Okoshi, Minoru; Kato, Tomoko; Yamaguchi, Tetsuji; Sasaki, Takayuki*; Hattori, Takatoshi*; Miyazaki, Shinichiro*; Higuchi, Natsuko*; Tokonami, Shinji*; et al.
no journal, ,
no abstracts in English
Kitagaki, Toru; Higuchi, Hidetoshi; Koizumi, Kenji; Hirano, Hiroyasu; Tasaka, Masayuki*; Washiya, Tadahiro; Kobayashi, Tsuguyuki*
no journal, ,
no abstracts in English
Kuroda, Kazuhiko*; Kitagaki, Toru; Higuchi, Hidetoshi; Tasaka, Masayuki*; Washiya, Tadahiro; Toya, Yuichi*; Nishikawa, Hideaki*; Karatsu, Fumiaki*
no journal, ,
no abstracts in English
Washiya, Tadahiro; Kitagaki, Toru; Higuchi, Hidetoshi; Koizumi, Kenji; Kobayashi, Tsuguyuki*; Koyama, Tomozo; Tasaka, Masayuki*
no journal, ,
JAEA have been developing a reliable fuel disassembly and shearing systems in cooperation with Japan Atomic Power Company (JAPC). We proposed a disassembly system utilizing mechanical cutting and pulling method. We designed and fabricated an engineering-scale test device, and confirming the system performance by using the simulated fuel assembly. And we proposed new shearing procedure as short-stroke cutting to provide highly fragmented fuel to realize efficient fuel dissolution required from the uranium crystallization process. We designed and fabricated the fuel transfer device and carried out some experiment to confirm that the fuel fragmentation rate and shared stroke was chosen to be 1 cm. In this paper, we will report the latest experiment for these systems.
Ishioka, Noriko; Hanaoka, Hirofumi*; Iida, Yasuhiko*; Watanabe, Satoshi; Watanabe, Shigeki; Oriuchi, Noboru*; Higuchi, Tetsuya*; Hashimoto, Kazuyuki; Endo, Keigo*
no journal, ,
no abstracts in English
Higuchi, Hidetoshi; Koizumi, Kenji; Hirano, Hiroyasu; Kitagaki, Toru; Takeuchi, Masayuki; Washiya, Tadahiro; Kobayashi, Tsuguyuki*
no journal, ,
no abstracts in English
Wakui, Ryohei; Higuchi, Hidetoshi; Kitagaki, Toru; Washiya, Tadahiro; Takeuchi, Masayuki; Kobayashi, Tsuguyuki*; Watanabe, Masayuki; Suganuma, Takashi
no journal, ,
no abstracts in English
Wakui, Ryohei; Kitagaki, Toru; Higuchi, Hidetoshi; Koizumi, Kenji; Takeuchi, Masayuki; Washiya, Tadahiro
no journal, ,
no abstracts in English
Nakai, Kunihiro*; Kai, Michiaki*; Okoshi, Minoru; Kato, Tomoko; Yamaguchi, Tetsuji; Sasaki, Takayuki*; Hattori, Takatoshi*; Miyazaki, Shinichiro*; Yoshizawa, Yuji*; Higuchi, Natsuko*; et al.
no journal, ,
no abstracts in English
M
on hydrogen absorption processMachida, Akihiko; Higuchi, Kensuke*; Watanuki, Tetsu; Katayama, Yoshinori; Sakaki, Koji*; Kim, H.*; Nakamura, Yumiko*
no journal, ,
no abstracts in English
