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Journal Articles

Gamow-Teller decay of the $$T=1$$ nucleus $$^{46}$$Cr

Onishi, Takeo*; Gelberg, A.*; Sakurai, Hiroyoshi*; Yoneda, Kenichiro*; Aoi, Nori*; Imai, Nobuaki*; Baba, Hidetada*; Von Brentano, P.*; Fukuda, Naoki*; Ichikawa, Yuichi*; et al.

Physical Review C, 72(2), p.024308_1 - 024308_7, 2005/08

 Times Cited Count:21 Percentile:78.97(Physics, Nuclear)

no abstracts in English

Journal Articles

JT-60U plasma current measurement by an optical current transformer

Arai, Takashi; Nishiyama, Tomokazu; Yagyu, Junichi; Kasai, Satoshi; Sone, Isamu*; Abe, Mitsushi*; Miya, Naoyuki

Fusion Science and Technology, 45(1), p.65 - 68, 2004/01

 Times Cited Count:2 Percentile:17.98(Nuclear Science & Technology)

In a nuclear fusion experiment device, a plasma discharge is to be sustained for a long time in steady state operation. In such a device an electromagnetic sensor that has a signal integrator to measure direct currents will cause a technical problem of zero point drift on signals. So, the detection device using new technology for direct current measurement, optical current transformer (optical CT), was developed. The device has an optical fiber specified for 1550nm (wavelength) was manufactured, and was applied to JT-60U experiments. A gamma ray irradiation examination was also done to the optical CT

Journal Articles

Verification of optical fiber current transformer in nuclear fusion experimental device

Nishiyama, Tomokazu; Arai, Takashi; Hayashi, Takao; Yagyu, Junichi; Miya, Naoyuki; Abe, Mitsushi*

Dai-32-Kai Koha Senshingu Gijutsu Kenkyukai Koen Rombunshu, p.147 - 152, 2003/00

In a nuclear fusion equipment device, plasma discharges are expected to become a long time. In such a device an electromagnetic sensor that has a signal integrator to measure direct currents will cause a technical problem of zero point drift on signals. Furthermore, the development for solving the problem cause cost rise. Therefore, the detection device using new technology for direct current measurement, optical fiber current transformer (optical CT), was developed. Direct-current measurement of JT-60 was carried out using this detection device. A $$gamma$$ ray irradiation examination was also done to the optical CT.

JAEA Reports

Development of fabrication technology for ITER vacuum vessel

Nakahira, Masataka; Shibanuma, Kiyoshi; Kajiura, Soji*; Shibui, Masanao*; Koizumi, Koichi; Takeda, Nobukazu; Kakudate, Satoshi; Taguchi, Ko*; Oka, Kiyoshi; Obara, Kenjiro; et al.

JAERI-Tech 2002-029, 27 Pages, 2002/03

JAERI-Tech-2002-029.pdf:2.04MB

The ITER vacuum vessel (VV) R&D has progressed with the international collaborative efforts by the Japan, Russia and US Parties during the Engineering Design Activities (EDA). Fabrication and testing of a full-scale VV sector model and a port extension have yielded critical information on the fabrication and assembly technologies of the vacuum vessel, magnitude of welding distortions, dimensional accuracy and achievable tolerances during sector fabrication and field assembly. In particular, the dimensional tolerances of $$pm$$3 mm for VV sector fabrication and $$pm$$10 mm for VV sector field assembly have been achieved and satisfied the requirements of $$pm$$5 mm and $$pm$$20 mm, respectively. Also, the basic feasibility of the remote welding robot has been demonstrated. This report presents detailed fabrication and assembly technologies such as welding technology applicable to the thick wall without large distortion, field joint welding technology between sectors and remote welding technology through the VV R&D project.

JAEA Reports

Irradiation effects on plasma diagnostic components, 2

Nishitani, Takeo; Shikama, Tatsuo*; Sugie, Tatsuo; Kasai, Satoshi; Ishitsuka, Etsuo; Kawamura, Hiroshi; Kakuta, Tsunemi; Yagi, Toshiaki; Tanaka, Shigeru; Narui, Makoto*; et al.

JAERI-Research 2002-007, 149 Pages, 2002/03

JAERI-Research-2002-007.pdf:8.08MB

no abstracts in English

Journal Articles

Demonstration of ripple reduction by ferritic steel board insertion in JFT-2M

Kawashima, Hisato; Sato, Masayasu; Tsuzuki, Kazuhiro; Miura, Yukitoshi; Isei, Nobuaki; Kimura, Haruyuki; Nakayama, Takeshi*; Abe, Mitsushi*; Darrow, D. S.*; JFT-2M Group

Nuclear Fusion, 41(3), p.257 - 263, 2001/03

 Times Cited Count:35 Percentile:73.14(Physics, Fluids & Plasmas)

no abstracts in English

Journal Articles

Design and first experimental results of toroidal field ripple reduction using ferritic insertion in JFT-2M

Sato, Masayasu; Kawashima, Hisato; Miura, Yukitoshi; Tsuzuki, Kazuhiro; Kimura, Haruyuki; Uehara, Kazuya; Ogawa, Toshihide; Isei, Nobuaki; Tani, Takashi; Akiyama, Takashi*; et al.

Fusion Engineering and Design, 51-52(Part.B), p.1071 - 1076, 2000/11

 Times Cited Count:15 Percentile:70.2(Nuclear Science & Technology)

no abstracts in English

Journal Articles

A Mechanical design for ferritic steels to reduce toroidal field ripple in the JFT-2M

Nakayama, Takeshi*; Yamamoto, Masahiro; Abe, Mitsushi*; Shibata, Takatoshi; Otsuka, Michio*; Akiyama, Takashi*; Sato, K.*; Kikuchi, Kazuo; Wada, Y.*; Koike, Tsuneyuki; et al.

Proceedings of the 18th IEEE/NPSS Symposium on Fusion Engineering (SOFE '99), p.227 - 230, 1999/10

no abstracts in English

Journal Articles

Advanced material tokamak experiment (AMTEX) program with ferritic steel for JFT-2M

Sato, Masayasu; Miura, Yukitoshi; Kimura, Haruyuki; Kawashima, Hisato; Sengoku, Seio; Yamamoto, Masahiro; ; Shibata, Takatoshi; Akiyama, Takashi*; Abe, Mitsushi*; et al.

Purazuma, Kaku Yugo Gakkai-Shi, 75(6), p.741 - 749, 1999/06

no abstracts in English

Journal Articles

Evaluation of magnetic field due to ferromagnetic vacuum vessel in tokamak

*; Abe, Mitsushi*; Tadokoro, Takahiro*; Miura, Yukitoshi; Suzuki, Norio; Sato, Masayasu; Sengoku, Seio

Purazuma, Kaku Yugo Gakkai-Shi, 74(3), p.274 - 283, 1998/03

no abstracts in English

Journal Articles

Steady state magnetic sensor in a fusion device

*; Neyatani, Yuzuru; Abe, Mitsushi*; Kasai, Satoshi; Nagashima, Akira

Diagnostics for Experimental Thermonuclear Fusion Reactors 2, p.545 - 548, 1998/00

no abstracts in English

JAEA Reports

Two-dimensional analysis for a scrapeoff and divertor regions with an MHD model; Conceptual design study of FY86 FER

*; *; Hitoki, Shigehisa*; Fujisawa, Noboru; Sugihara, Masayoshi; Yamamoto, Shin; Mizoguchi, Tadanori*; Abe, Mitsushi*; *; *; et al.

JAERI-M 87-119, 19 Pages, 1987/08

JAERI-M-87-119.pdf:0.5MB

no abstracts in English

JAEA Reports

Preliminary analysis on plasma equilibrium control; Conceptual design study of FY86 FER

Abe, Mitsushi*; *; *; *; *; *; Shinya, K.*; Sugihara, Masayoshi; Hatayama, Akiyoshi*; Hitoki, Shigehisa*; et al.

JAERI-M 87-116, 13 Pages, 1987/08

JAERI-M-87-116.pdf:0.49MB

no abstracts in English

JAEA Reports

Effect of discrete RF spectrum on fast wave current drive; Conceptual design study of FY86 FER

*; *; Sugihara, Masayoshi; Yamamoto, Shin; Mizoguchi, Tadanori*; Hitoki, Shigehisa*; Abe, Mitsushi*; *; *; *; et al.

JAERI-M 87-110, 11 Pages, 1987/08

JAERI-M-87-110.pdf:0.38MB

no abstracts in English

JAEA Reports

Consistency between current ramp-up/recharging scenario by non-inductive current drive and dense and cold divertor plasma; Conceptual design study of FY86 FER

Hitoki, Shigehisa*; Sugihara, Masayoshi; Yamamoto, Shin; Abe, Mitsushi*; *; *; *; *; Shinya, K.*; Hatayama, Akiyoshi*; et al.

JAERI-M 87-109, 33 Pages, 1987/08

JAERI-M-87-109.pdf:0.81MB

no abstracts in English

JAEA Reports

Plasma physics design and major specifications of candidate reactors for FER design studies; Conceptual design study of FY86 FER

Sugihara, Masayoshi; Mizoguchi, Tadanori*; Hatayama, Akiyoshi*; Shinya, K.*; Yamamoto, Shin; Abe, Mitsushi*; *; *; *; *; et al.

JAERI-M 87-108, 49 Pages, 1987/08

JAERI-M-87-108.pdf:1.42MB

no abstracts in English

JAEA Reports

Main physics features driving design concept and physics design constraints; Conceptual design study of FY86 FER

Fujisawa, Noboru; Sugihara, Masayoshi; Yamamoto, Shin; Mizoguchi, Tadanori*; Hitoki, Shigehisa*; Abe, Mitsushi*; *; *; *; *; et al.

JAERI-M 87-093, 64 Pages, 1987/07

JAERI-M-87-093.pdf:1.45MB

no abstracts in English

17 (Records 1-17 displayed on this page)
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