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Isono, Takaaki; Takahashi, Yoshikazu; Nunoya, Yoshihiko; Hamada, Kazuya; Matsui, Kunihiro; Nabara, Yoshihiro; Hemmi, Tsutomu; Koizumi, Norikiyo; Nakajima, Hideo; Okuno, Kiyoshi
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Japan Atomic Energy Agency has been procuring superconducting conductors for ITER since 2008. TF conductors for process verification were successfully fabricated and fabrication of conductors for TF coils are in progress. Each cable is composed of 900 Nb
Sn superconducting strands and 522 cupper strands, and the cable is inserted into a stainless steel jacket of about 760m length and compacted to be a TF conductor. In the presentation, fabrication process of TF conductor and superconducting performance of strands will be presented.
Hayashi, Takumi; Iwai, Yasunori; Kobayashi, Kazuhiro; Isobe, Kanetsugu; Nakamura, Hirofumi; Kawamura, Yoshinori; Yamanishi, Toshihiko; Perevezentsev, A.*
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no abstracts in English
Nakamichi, Masaru; Yonehara, Kazuo
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no abstracts in English
Hayashi, Takumi; Kawamura, Yoshinori; Nakamura, Hirofumi; Iwai, Yasunori; Kobayashi, Kazuhiro; Isobe, Kanetsugu; Suzuki, Takumi; Yamada, Masayuki; Yamanishi, Toshihiko
no journal, ,
Under the common interests of European Union (EU) and Japan (JA) for tritium technologies, the R&Ds towards to the DEMO plant are being carried out in the Broader Approach (BA) program. The subjects of R&Ds are as follows: (1) Preparation of Tritium Handling Equipment; (2) Tritium Accountancy Technology; (3) Basic Tritium Safety Research; and (4) Tritium Durability Test. The above subjects are carried out by Japan, and EU joins a series of discussions of R&D results. As a major activity in the first phase period (2007-2009), the subject of (1) has been carried out. In addition, the subjects of (2) and (3) have been started as collaborative works with Japanese universities.
Tsuchiya, Katsuhiko; Kizu, Kaname; Murakami, Haruyuki; Kamiya, Koji; Kashiwa, Yoshitoshi; Honda, Atsushi; Yoshida, Kiyoshi
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no abstracts in English
Oda, Yasuhisa; Kajiwara, Ken; Takahashi, Koji; Sakamoto, Keishi
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Uto, Hiroyasu; Tobita, Kenji; Sato, Satoshi; Seki, Yohji; Someya, Yoji; Takase, Haruhiko
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Tobita, Kenji; Asakura, Nobuyuki; Uto, Hiroyasu; Okano, Kunihiko*; Ogawa, Yuichi*; Nishitani, Takeo; Hiwatari, Ryoji*; Nakamura, Makoto*
no journal, ,
In the Phase One of the Broader Approach (BA) DEMO design activity, we have proceeded with the exchange of technical informations in the workshop style to enhance mutual understanding on DEMO design. The discussion was mainly focused on (1) role of DEMO and (2) engineering issues on DEMO. This presentation will introduce the Japanese contribution to the activity.
Asakura, Nobuyuki; Shimizu, Katsuhiro; Tobita, Kenji; Kawashima, Hisato; Takizuka, Tomonori
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Hoshino, Tsuyoshi
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Nakamura, Kazuyuki; Ida, Mizuho; Kondo, Hiroo; Watanabe, Kazuyoshi; Furukawa, Tomohiro; Hirakawa, Yasushi; Horiike, Hiroshi*; Fukada, Satoshi*; Terai, Takayuki*; Tsuji, Yoshiyuki*; et al.
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IFMIF/EVEDA started at July in 2007. Li Target System consists of five validation tasks (LF1-5) and one design task (LF6). Present status of Li Test Loop Construction and Operation task (LF1) is to complete the fabrication and installation of the almost key components except Target Assembly and Two types of traps for nitrogen and hydrogen, and to continue the connection with the components by the pipes. In the Diagnostics task (LF2), the characterization of the contact probe level meter is on going in Osaka University. In the Purification System task (LF4), the characterization of the Fe-Ti gettering material in Tokyo University and of Y gettering material in Kyushu University is on going. In the Remote Handling task (LF5), the design of the experimental facility has been finished. In the Engineering Design task (LF6), the engineering design for the IFMIF will be completed based on the validation tasks (LF1-5).
Sato, Satoshi; Ochiai, Kentaro; Konno, Chikara; Iida, Hiromasa*; Morota, Hidetsugu*; Nasif, H.*; Tanaka, Masanobu*
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Shielding analyse were conducted on ITER NB by Monte Carlo calculation code MCNP5 and Fusion Evaluated Nuclear Data Library FENDL-2.1. Neutron and 
-ray dose rate distributions during operation are evaluated in L2 and L3 room. Also, these are evaluated outside the building. By using the direct 1 step Monte Carlo method (D1S-MCNP), decay -ray dose rate distributions are evaluated in L2 and L3 room about 10 days after operation. Detailed calculation results are presented in this conference.
Shinto, Katsuhiro; Ohira, Shigeru; Kikuchi, Takayuki; Kubo, Takashi; Yonemoto, Kazuhiro; Kasuya, Kenichi; Maebara, Sunao; Takahashi, Hiroki; Kojima, Toshiyuki; Tsutsumi, Kazuyoshi; et al.
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no abstracts in English
disruptive discharges in JT-60UShibata, Yoshihide*; Watanabe, Kiyomasa*; Ono, Noriyasu*; Okamoto, Masaaki*; Isayama, Akihiko; Kurihara, Kenichi; Oyama, Naoyuki; Nakano, Tomohide; Kawano, Yasunori; Matsunaga, Go; et al.
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Hada, Kazuyoshi*; Nagasaki, Kazunobu*; Masuda, Kai*; Ide, Shunsuke; Isayama, Akihiko
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Matsunaga, Go; Takechi, Manabu; Sakurai, Shinji; Ide, Shunsuke; Urano, Hajime; Oyama, Naoyuki; Sakasai, Akira; Kamada, Yutaka; JT-60SA Team
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Akiba, Masato; Enoeda, Mikio
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ITER is under construction by international collaboration of seven parties. ITER has two major missions. One is demonstration of a burning fusion plasma, and the other is testing of nuclear components which are necessary to realize fusion reactors. Regarding testing nuclear components, each party has been developing an own test blanket module, which will be installed in ITER and will be tested under a fusion environment of ITER. This paper will present the present status of the Test Blanket Module in Japan and the DEMO blanket.
Masaki, Kei; Shibama, Yusuke; Sakurai, Shinji; Katayama, Masahiro*; Sakasai, Akira; JT-60SA Team
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Takechi, Manabu; Matsunaga, Go; Kurita, Genichi; Sakurai, Shinji; Ide, Shunsuke; Aiba, Nobuyuki; Bolzonella, T.*; Villone, F.*; JT-60SA Team
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no abstracts in English
Okuno, Kiyoshi; Nakajima, Hideo; Koizumi, Norikiyo; Takahashi, Yoshikazu
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no abstracts in English