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Ueno, Yasuhiro*; Aoki, Masaharu*; Fukao, Yoshinori*; Higashi, Yoshitaka*; Higuchi, Takashi*; Iinuma, Hiromi*; Ikedo, Yutaka*; Ishida, Katsuhiko*; Ito, Takashi; Iwasaki, Masahiko*; et al.
Hyperfine Interactions, 238(1), p.14_1 - 14_6, 2017/11
Times Cited Count：3 Percentile：84.62(Physics, Atomic, Molecular & Chemical)Strasser, P.*; Aoki, Masaharu*; Fukao, Yoshinori*; Higashi, Yoshitaka*; Higuchi, Takashi*; Iinuma, Hiromi*; Ikedo, Yutaka*; Ishida, Katsuhiko*; Ito, Takashi; Iwasaki, Masahiko*; et al.
Hyperfine Interactions, 237(1), p.124_1 - 124_9, 2016/12
Times Cited Count：7 Percentile：89.76(Physics, Atomic, Molecular & Chemical)Oshima, Takeshi; Yokoseki, Takashi; Murata, Koichi; Matsuda, Takuma; Mitomo, Satoshi; Abe, Hiroshi; Makino, Takahiro; Onoda, Shinobu; Hijikata, Yasuto*; Tanaka, Yuki*; et al.
Japanese Journal of Applied Physics, 55(1S), p.01AD01_1 - 01AD01_4, 2016/01
Times Cited Count：15 Percentile：54.39(Physics, Applied)Hijikata, Yasuto*; Mitomo, Satoshi*; Matsuda, Takuma*; Murata, Koichi*; Yokoseki, Takashi*; Makino, Takahiro; Takeyama, Akinori; Onoda, Shinobu; Okubo, Shuichi*; Tanaka, Yuki*; et al.
Proceedings of 11th International Workshop on Radiation Effects on Semiconductor Devices for Space Applications (RASEDA-11) (Internet), p.130 - 133, 2015/11
Torii, Tatsuo; Okuyama, Shinichi; Nozaki, Tatsuo; Okubo, Koichi; Sugita, Takeshi*; Muraki, Yasushi*
Chimondai Ni Yoru Saiensu; Kyokugen Enerugi Uchubutsuri Kara Chikyukagaku Made, p.211 - 217, 2008/00
The dose rate of the 
-rays increases in association with the activities of the thunderstorm. They were observed on the ground in the winter season of Japan. In addition to the measurement by the environmental radiation monitors set up around the fast breeder reactor, Monju, the radiation detectors were prepared which consist of the long proportional counters. The results were compared with the results measured at the same time by the environmental radiation monitors. The following two types of the radiation enhancements have been found during the winter thunderstorm activities; the gradual variation of photon intensity with energy up to a few MeV, and the burst type of the radiation that is attributed to the injection of high energy photons with the energy over 10 MeV. In this paper, we present the observed results during winter thunderstorms, and mention the runaway breakdown produced by the incidence of energetic radiation into thunderclouds.
Maeda, Atsushi; Kowata, Koichi; Yamazaki, Yasuo; Takahashi, Kozo; Okubo, Toshiyuki; Miyazaki, Hitoshi
Dekomisshoningu Giho, (33), p.58 - 66, 2006/03
By the Japan Atomic Energy Agency (JAEA), designed decommissioning of nuclear facility and the treatment and disposal of radioactive waste will be carried out systematically and efficiently as responsibility as the installer of the nuclear power facility and generator of radioactive waste. This paper shows the present status of radioactive waste management in O-arai Research and Development Center, one of the research and development bases of JAEA. The management of low-level radioactive waste, including those accepted from outside operator of O-arai district, is carried out by the major premise of ensuring safety at O-arai Waste Management Facility. Treatment related to volume reduction and stabilization by means such as incineration and compression of solid waste, and solidification of liquid, as well as waste storage management is steadfastly promoted, so that these substances may be adequately stored and managed until they are disposed of.
Ouchi, Nobuo; Akaoka, Nobuo*; Asano, Hiroyuki*; Chishiro, Etsuji; Namekawa, Yuya*; Suzuki, Hiroyuki*; Ueno, Tomoaki*; Noguchi, Shuichi*; Kako, Eiji*; Ouchi, Norihito*; et al.
Proceedings of 4th International Workshop on the Utilisation and Reliability of High Power Proton Accelerators, p.175 - 183, 2005/11
no abstracts in English
Torii, Tatsuo; OKUBO, Koichi; Okuyama, Shinichi
JNC TN4420 2004-002, 14 Pages, 2004/05
JNC-TN4420-2004-002.pdf:0.36MB
none
Iwama, Toshiro; OKUBO, Koichi; Okuyama, Shinichi
JNC TN4420 2003-004, 30 Pages, 2004/03
JNC-TN4420-2003-004.pdf:3.16MB
This is the investigative report of vegetational observations including some photographs of plants around Monju area in 2003.
Iwama, Toshiro; Okubo, Koichi; Okuyama, Shinichi
JNC TN4420 2003-003, 30 Pages, 2004/03
JNC-TN4420-2003-003.pdf:2.18MB
none
Iwama, Toshiro; Okubo, Koichi; Okuyama, Shinichi
JNC TN4420 2003-002, 30 Pages, 2004/03
JNC-TN4420-2003-002.pdf:2.05MB
none
Ikeda, Shugo; Tokiwa, Yoshifumi*; Haga, Yoshinori; Yamamoto, Etsuji; Okubo, Tomoyuki*; Yamada, Mineko*; Nakamura, Noriko*; Sugiyama, Kiyohiro*; Kindo, Koichi*; Inada, Yoshihiko*; et al.
Journal of the Physical Society of Japan, 72(3), p.576 - 581, 2003/03
Times Cited Count：41 Percentile：82.21(Physics, Multidisciplinary)no abstracts in English
SiMatsuda, Tatsuma; Metoki, Naoto; Haga, Yoshinori; Ikeda, Shugo; Okubo, Tomoyuki*; Sugiyama, Kiyohiro*; Nakamura, Noriko*; Kindo, Koichi*; Kaneko, Koji; Nakamura, Akio; et al.
Journal of the Physical Society of Japan, 72(1), p.122 - 130, 2003/01
Times Cited Count：13 Percentile：60.65(Physics, Multidisciplinary)no abstracts in English
-ray irradiation effect on SiC-MOSFETMitomo, Satoshi*; Matsuda, Takuma*; Murata, Koichi*; Yokoseki, Takashi; Makino, Takahiro; Abe, Hiroshi; Onoda, Shinobu; Oshima, Takeshi; Okubo, Shuichi*; Tanaka, Yuki*; et al.
no journal, ,
no abstracts in English
-ray irradiation under high temperature and humidity circumstance on the electrical characteristics of SiC MOSFETsTakeyama, Akinori; Matsuda, Takuma; Yokoseki, Takashi; Mitomo, Satoshi; Murata, Koichi; Makino, Takahiro; Onoda, Shinobu; Okubo, Shuichi*; Tanaka, Yuki*; Kandori, Mikio*; et al.
no journal, ,
no abstracts in English
Umeki, Hiroyuki; Osawa, Hideaki; Naito, Morimasa; Nakano, Katsushi; Makino, Hitoshi; Miyamoto, Yoichi; Takase, Hiroyasu*; McKinley, I. G.*; Umeda, Koji; Asamori, Koichi; et al.
no journal, ,
no abstracts in English
-rays at elevated temperatureMatsuda, Takuma; Yokoseki, Takashi; Mitomo, Satoshi; Murata, Koichi; Makino, Takahiro; Abe, Hiroshi; Onoda, Shinobu; Okubo, Shuichi*; Tanaka, Yuki*; Kandori, Mikio*; et al.
no journal, ,
no abstracts in English
Honda, Ryo*; Yanagizawa, Koichi; Okubo, Makoto*; Tanaka, Toshiyuki*
no journal, ,
no abstracts in English
Aoyanagi, Shigeo; Fujita, Tomoo; Shin, Koichi*; Okubo, Seisuke*; Nishimura, Kazuo*
no journal, ,
no abstracts in English
-ray radiation response of SiC MOSFETsTakeyama, Akinori; Murata, Koichi*; Mitomo, Satoshi*; Matsuda, Takuma*; Yokoseki, Takashi*; Makino, Takahiro; Onoda, Shinobu; Okubo, Shuichi*; Tanaka, Yuki*; Kandori, Mikio*; et al.
no journal, ,
Deterioration of electrical property of SiCMOSFETs due to irradiation was reduced compared with no biased ones, when the SiC MOSFETs with switching bias were irradiated. In order to clarify this mechanism, SiCMOSFETs were irradiated up to 50 kGy with switching bias applied to gate oxide from 4.5 to 0 V. As a result, the large negative shift of threshold voltage V
due to irradiation with positive bias significantly recovered in the cases that the bias switched to zero. It shows electrical property of SiCMOSFETs were immediately relieved when applied bias was removed by switching.
