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Fujikawa, Y.*; Kawabata, T.*; Adachi, S.*; Hirose, Kentaro; Makii, Hiroyuki; Nishio, Katsuhisa; Orlandi, R.; Suzaki, Fumi; 13 of others*
Physics Letters B, 848, p.133834_1 - 133834_6, 2024/01
Tamii, Atsushi*; Pellegri, L.*; Sderstrm, P.-A.*; Allard, D.*; Goriely, S.*; Inakura, Tsunenori*; Khan, E.*; Kido, Eiji*; Kimura, Masaaki*; Litvinova, E.*; et al.
European Physical Journal A, 59(9), p.208_1 - 208_21, 2023/09
no abstracts in English
Tanaka, Junki*; Yang, Z.*; Typel, S.*; Adachi, Satoshi*; Bai, S.*; van Beek, P.*; Beaumel, D.*; Fujikawa, Yuki*; Han, J.*; Heil, S.*; et al.
Science, 371(6526), p.260 - 264, 2021/01
Times Cited Count:30 Percentile:99.14(Multidisciplinary Sciences)By employing quasi-free -cluster-knockout reactions, we obtained direct experimental evidence for the formation of clusters at the surface of neutron-rich tin isotopes. The observed monotonous decrease of the reaction cross sections with increasing mass number, in excellent agreement with the theoretical prediction, implies a tight interplay between -cluster formation and the neutron skin.
Qiu, Z.*; An, Toshu*; Uchida, Kenichi*; Hou, D.*; Shiomi, Yuki*; Fujikawa, Yasunori*; Saito, Eiji
Applied Physics Letters, 103(18), p.182404_1 - 182404_3, 2013/10
Times Cited Count:19 Percentile:61.88(Physics, Applied)Konishi, Tomoya*; Nishiwaki, Nagatoshi*; Tojo, Takashi*; Ishikawa, Takuma*; Teraoka, Teruki*; Ueta, Yukiko*; Kihara, Yoshifumi*; Moritoki, Hideji*; Tono, Tatsuo*; Musashi, Mio*; et al.
Physica Status Solidi (C), 8(2), p.405 - 407, 2011/02
Times Cited Count:3 Percentile:74.88Kakuda, Naoki*; Kaizu, Toshiyuki*; Takahashi, Masamitsu; Fujikawa, Seiji; Yamaguchi, Koichi*
Japanese Journal of Applied Physics, 49(9), p.095602_1 - 095602_4, 2010/09
Times Cited Count:2 Percentile:15.04(Physics, Applied)Koga, J. K.; Moribayashi, Kengo; Fukuda, Yuji; Bulanov, S. V.; Sagisaka, Akito; Ogura, Koichi; Daido, Hiroyuki; Yamagiwa, Mitsuru; Kimura, Toyoaki*; Fujikawa, Taketoshi*; et al.
Journal of Physics D; Applied Physics, 43(2), p.025204_1 - 025204_15, 2010/01
Times Cited Count:14 Percentile:56.66(Physics, Applied)Sano, Michiaki; Ishii, Eiichi; Niinuma, Hiroaki; Fujikawa, Daisuke; Sanada, Hiroyuki; Hiraga, Naoto; Tsusaka, Kimikazu; Yamasaki, Masanao*
JAEA-Data/Code 2009-015, 142 Pages, 2009/11
In the Horonobe Underground Laboratory (URL) Project, Construction of the Ventilation Shaft, the East Shaft and the drifts has been conducted as a Phase 2 research. In the research, observation of the lithofacies and fracture, and in-situ tests, simple elastic wave exploration, Schmidt hammer test, Equotip test, point load test are conducted in each face, and measuring instruments such as extensometer, rock-bolt axial force meter, shotcrete stress meter and tunnel lining concrete stress meter are installed in particular face. In addition, for the purpose of the validation of the results of predictive analysis, conducted in Phase 1, about the amount of spring water during construction of Underground facilities, data on the changes of amount of spring water and water quality is obtained. This report summarizes the measurements data acquired at the Ventilation Shaft (GL -161m -250m), the East Shaft (GL -110m -140m) and the 140m drift.
Yamazaki, Masanao; Funaki, Hironori; Yamaguchi, Takehiro*; Niinuma, Hiroaki; Fujikawa, Daisuke; Sanada, Hiroyuki; Hiraga, Naoto; Tsusaka, Kimikazu
JAEA-Data/Code 2008-023, 136 Pages, 2008/11
This report summarizes the measurements data acquired at the Ventilation Shaft, the East Shaft and the drifts in 2007 based on the Observational Construction Program. The report summarizes for the purpose of the followings: sharing the investigation and measurements data, preventing the loss of them and acquisition the basic data for carrying out the Observational Construction Program.
Kubono, Shigeru*; Teranishi, Takashi*; Notani, Masahiro*; Yamaguchi, Hidetoshi*; Saito, Akito*; He, J. J.*; Wakabayashi, Yasuo*; Fujikawa, Hisashi*; Amadio, G.*; Baba, Hidetada*; et al.
Nuclear Physics A, 758, p.733 - 736, 2005/07
Times Cited Count:1 Percentile:14.46(Physics, Nuclear)With using RNB from CRIB, proton inelastic scattering was observed. From this experiment, some resonance parameters have been deduced for the key reaction, at the explosive hydrogen burning stage in stars. Proton inelastic scattering of are also reported.
Fujikawa, Seigo; Hayashi, Hideyuki; Nakazawa, Toshio; Kawasaki, Kozo; Iyoku, Tatsuo; Nakagawa, Shigeaki; Sakaba, Nariaki
Journal of Nuclear Science and Technology, 41(12), p.1245 - 1254, 2004/12
Times Cited Count:87 Percentile:97.76(Nuclear Science & Technology)A High Temperature Gas-cooled Reactor (HTGR) is particularly attractive due to its capability of producing high-temperature helium gas and to its inherent safety characteristics. The High Temperature Engineering Test Reactor (HTTR), which is the first HTGR in Japan, achieved its rated thermal power of 30MW and reactor-outlet coolant temperature of 950C on 19 April 2004. During the high-temperature test operation which is the final phase of the rise-to-power tests, reactor characteristics and reactor performance were confirmed, and reactor operations were monitored to demonstrate the safety and stability of operation. The reactor-outlet coolant temperature of 950C makes it possible to extend high-temperature gas-cooled reactor use beyond the field of electric power. Also, highly effective power generation with a high-temperature gas turbine becomes possible, as does hydrogen production from water. The achievement of 950C will be a major contribution to the actualization of producing hydrogen from water using the high-temperature gas-cooled reactors. This report describes the results of the high-temperature test operation of the HTTR.
Kawasaki, Kozo; Iyoku, Tatsuo; Nakazawa, Toshio; Hayashi, Hideyuki; Fujikawa, Seigo
Nihon Genshiryoku Gakkai-Shi, 46(8), P. 510, 2004/08
no abstracts in English
Kawasaki, Kozo; Iyoku, Tatsuo; Nakazawa, Toshio; Hayashi, Hideyuki; Fujikawa, Seigo
Nihon Genshiryoku Gakkai-Shi, 46(5), P. 301, 2004/05
no abstracts in English
Sawa, Kazuhiro; Yoshimuta, Shigeharu*; Shiozawa, Shusaku; Fujikawa, Seigo; Tanaka, Toshiyuki; *; *; *
IAEA-TECDOC-1043, p.177 - 189, 1998/09
no abstracts in English
Tanaka, Toshiyuki; Okubo, Minoru; Fujikawa, Seigo; Mogi, Haruyoshi; Suzuki, Hiroshi
Proc. of PBNC'98, 2, p.1203 - 1210, 1998/00
no abstracts in English
Tanaka, Toshiyuki; Shiozawa, Shusaku; Okubo, Minoru; Fujikawa, Seigo; Mogi, Haruyoshi; Suzuki, Hiroshi
Proceedings of European Nuclear Conference (ENC'98), 4, 5 Pages, 1998/00
no abstracts in English
Kanda, Yukinori*; Fujikawa, Noboru*; Kawano, Toshihiko*
JAERI-M 93-205, 52 Pages, 1993/10
no abstracts in English
Yamaki, Jikei; Fujikawa, Seigo; ; Ishida, Toshihisa; Mizushima, Toshihiko; *; Sakamoto, Yukio;
Genshiryoku Kogyo, 38(4), p.13 - 28, 1992/04
no abstracts in English
Koga, J. K.; Moribayashi, Kengo; Fukuda, Yuji; Bulanov, S. V.; Sagisaka, Akito; Ogura, Koichi; Daido, Hiroyuki; Yamagiwa, Mitsuru; Kimura, Toyoaki; Fujikawa, Taketoshi*; et al.
no journal, ,
Murakami, Hiroaki; Kokubu, Yoko; Yokoyama, Tatsunori; Watanabe, Takahiro; Yuguchi, Takashi*; Fujikawa, Masayuki*; Nishiyama, Tadao*
no journal, ,
In order to observe micro-growth layers in carbonate, we consider availability and measurement procedure of cathodoluminescence for various carbonates. Optical-CL image and SEM-CL image provide layering structures of entire area and microscale distribution of layering structures, respectively. Thus, the approach in the order of Optical-CL measurement to SEM-CL measurement is powerful means of microscale observation of carbonate.