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Otsuka, Yusuke*; Kanazawa, Naoya*; Hirayama, Motoaki*; Matsui, Akira*; Nomoto, Takuya*; Arita, Ryotaro*; Nakajima, Taro*; Hanashima, Takayasu*; Ukleev, V.*; Aoki, Hiroyuki; et al.
Science Advances (Internet), 7(47), p.eabj0498_1 - eabj0498_9, 2021/11
Times Cited Count：7 Percentile：40.96(Multidisciplinary Sciences)Sako, Hiroyuki; Harada, Hiroyuki; Sakaguchi, Takao*; Chujo, Tatsuya*; Esumi, Shinichi*; Gunji, Taku*; Hasegawa, Shoichi; Hwang, S.; Ichikawa, Yudai; Imai, Kenichi; et al.
Nuclear Physics A, 956, p.850 - 853, 2016/12
Times Cited Count：12 Percentile：65.66(Physics, Nuclear)Yoshida, Masafumi; Hanada, Masaya; Kojima, Atsushi; Kashiwagi, Mieko; Umeda, Naotaka; Hiratsuka, Junichi; Ichikawa, Masahiro; Watanabe, Kazuhiro; Grisham, L. R.*; Tsumori, Katsuyoshi*; et al.
Review of Scientific Instruments, 87(2), p.02B144_1 - 02B144_4, 2016/02
Times Cited Count：9 Percentile：42.81(Instruments & Instrumentation)Time evolution of spatial profile of negative ion production during an initial conditioning phase has been experimentally investigated in the JT-60 negative ion source. Up to 0.4 g Cs injection, there is no enhancement of the negative ion production and no observation of the Cs emission signal in the source, suggesting the injected Cs is mainly deposited on the water-cooled wall near the nozzle. After 0.4 g Cs injection, enhancement of the negative ion production appeared only at the central segment of the PG. The calculation of the Cs neutral/ion trajectories implied that a part of Cs was ionized near the nozzle and was transported to this area. The expansion of the area of the surface production was saturated after ~2 g Cs injection corresponding to 6000 s discharge time. From the results, it is found that Cs ionization and its transport plays an important role for the negative ion production.
Goto, Shinichi*; Kaji, D.*; Nishinaka, Ichiro; Nagame, Yuichiro; Ichikawa, Shinichi; Tsukada, Kazuaki; Asai, Masato; Haba, Hiromitsu; Mitsuoka, Shinichi; Nishio, Katsuhisa; et al.
Journal of Radioanalytical and Nuclear Chemistry, 255(1), p.73 - 76, 2003/01
Times Cited Count：0 Percentile：0.01(Chemistry, Analytical)no abstracts in English
Nagame, Yuichiro; Zhao, Y.*; Nishinaka, Ichiro; Goto, Shinichi*; Kaji, D.*; Tanikawa, Masashi*; Tsukada, Kazuaki; Asai, Masato; Haba, Hiromitsu; Sakama, Minoru*; et al.
Radiochimica Acta, 89(11-12), p.681 - 688, 2002/02
Times Cited Count：3 Percentile：27.1(Chemistry, Inorganic & Nuclear)no abstracts in English
Nagame, Yuichiro; Zhao, Y.*; Nishinaka, Ichiro; Goto, Shinichi; Tanikawa, Masashi*; Tsukada, Kazuaki; Asai, Masato; Haba, Hiromitsu; Sakama, Minoru; Ichikawa, Shinichi; et al.
Heavy Ion Physics, 13(1-3), p.121 - 131, 2001/05
Times Cited Count：0 Percentile：0.01(Physics, Nuclear)no abstracts in English
130 in two mode fissionNishinaka, Ichiro; Nagame, Yuichiro; Tsukada, Kazuaki; Ichikawa, Shinichi; Ikezoe, Hiroshi; Tanikawa, Masashi*; Zhao, Y.*; Sueki, Keisuke*; Nakahara, Hiromichi*
Proceedings of 2nd International Conference on Fission and Neutron-rich Nuclei, p.494 - 496, 2000/03
no abstracts in English
Zhao, Y. L.*; Nishinaka, Ichiro; Nagame, Yuichiro; Tanikawa, Masashi*; Tsukada, Kazuaki; Ichikawa, Shinichi; Sueki, Keisuke*; Oura, Yasutsugu*; Ikezoe, Hiroshi; Mitsuoka, Shinichi; et al.
Physical Review Letters, 82(17), p.3408 - 3411, 1999/04
Times Cited Count：32 Percentile：79.83(Physics, Multidisciplinary)no abstracts in English
Nagame, Yuichiro; Zhao, Y.*; Nishinaka, Ichiro; Otsuki, Tsutomu*; Tanikawa, Masashi*; Tsukada, Kazuaki; Sueki, Keisuke*; Ichikawa, Shinichi; Nakahara, Hiromichi*
1st International Conference on the Chemistry and Physics of the Transactinide Elements; Extended Abstracts, 4 Pages, 1999/00
no abstracts in English
Nagame, Yuichiro; Nishinaka, Ichiro; Zhao, Y. L.*; Tsukada, Kazuaki; Ichikawa, Shinichi; Ikezoe, Hiroshi; Tanikawa, Masashi*; Otsuki, Tsutomu*; Oura, Yasutsugu*; Sueki, Keisuke*; et al.
Journal of Radioanalytical and Nuclear Chemistry, 239(1), p.97 - 101, 1999/00
Times Cited Count：4 Percentile：34.81(Chemistry, Analytical)no abstracts in English
Zhao, Y.*; Nishinaka, Ichiro; Nagame, Yuichiro; Tsukada, Kazuaki; Tanikawa, Masashi*; Sueki, Keisuke*; Oura, Yasutsugu*; Ichikawa, Shinichi; Ikezoe, Hiroshi; Otsuki, Tsutomu*; et al.
Journal of Alloys and Compounds, 271-273, p.327 - 330, 1998/00
Times Cited Count：6 Percentile：46.75(Chemistry, Physical)no abstracts in English
-particles in the 
O + 
Pu reactionNishinaka, Ichiro; Tanikawa, Masashi*; Nagame, Yuichiro; Asai, Masato; Tsukada, Kazuaki; Toyoshima, Atsushi; Ichikawa, Takatoshi*
no journal, ,
no abstracts in English
-particle emission in the O + Pu reactionNishinaka, Ichiro; Tanikawa, Masashi*; Nagame, Yuichiro; Asai, Masato; Tsukada, Kazuaki; Toyoshima, Atsushi; Ichikawa, Takatoshi*
no journal, ,
no abstracts in English
113 produced by the 
Bi(
Zn,n)113 reactionMorimoto, Koji*; Morita, Kosuke*; Kaji, Daiya*; Haba, Hiromitsu*; Ozeki, Kazutaka*; Kudo, Yuki*; Sato, Nozomi; Sumita, Takayuki*; Yoneda, Akira*; Ichikawa, Takatoshi*; et al.
no journal, ,
We performed the experiment to synthesize an isotope of the element 113 produced by a Bi(Zn,n)113 reaction using a gas-filled recoil ion separator (GARIS) at RIKEN. Two decay chains were observed, and assigned to those originating from an isotope 113. Both chains were connected into the previously known decays of 
Bh and 
Db via previously unknown decays of 113, 
Rg, and 
Mt. Although the Bh was known nuclide, a number of atoms reported so far was limited. In order to study more precise decay property of the Bh, we performed the direct production of Bh by the 
Cm(
Na,5n)Bh reaction. In this experiment, the Bh was clearly identified from the correlation of the nuclide, Db. The obtained decay properties of Bh and Db are consistent with those observed in the 113 chain, which provided further confirmation of the discovery of 113.
Fukuda, Yuhei; Hinai, Hiroshi; Shibata, Atsuhiro; Nomura, Kazunori; Ikeda, Akira*; Obata, Masamichi*; Ichikawa, Masashi*; Takahashi, Ryota*; Hirayama, Fumio*
no journal, ,
no abstracts in English
Fukuda, Yuhei; Arai, Yoichi; Hinai, Hiroshi; Nomura, Kazunori; Ikeda, Akira*; Obata, Masamichi*; Ichikawa, Masashi*; Takahashi, Ryota*; Hirayama, Fumio*
no journal, ,
no abstracts in English
Hinai, Hiroshi; Nitta, Ayako; Shibata, Atsuhiro; Koma, Yoshikazu; Kaneko, Masaaki*; Ichikawa, Masashi*
no journal, ,
no abstracts in English
Ichikawa, Masashi*; Kaneko, Masaaki*; Koma, Yoshikazu; Hinai, Hiroshi; Nitta, Ayako; Shibata, Atsuhiro
no journal, ,
To study on treatment and disposal of solid waste generated at Fukushima Daiichi NPS (1F), radionuclide composition of sample taken from the bottom of primary containment vessel (PCV) of unit 1 was acquired by radioactivity analysis. It was the first time that nuclide composition data of samples taken from the inside of the reactor had been acquired, and the acquisition of these data will make it possible to estimate the origin of contaminants.
Kaneko, Masaaki*; Ichikawa, Masashi*; Hinai, Hiroshi; Nitta, Ayako; Shibata, Atsuhiro; Koma, Yoshikazu
no journal, ,
no abstracts in English
Ichikawa, Masashi*; Kaneko, Masaaki*; Hinai, Hiroshi; Nitta, Ayako; Shibata, Atsuhiro; Koma, Yoshikazu
no journal, ,
no abstracts in English
