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Koizumi, Norikiyo; Nunoya, Yoshihiko; Okuno, Kiyoshi
IEEE Transactions on Applied Superconductivity, 16(2), p.831 - 834, 2006/06
Times Cited Count：24 Percentile：70.73(Engineering, Electrical & Electronic)no abstracts in English
Al insert; Characteristics of acoustic emissionNinomiya, Akira*; Arai, Kazuaki*; Takano, Katsutoshi*; Tsugawa, Kazuhito*; Ishigooka, Takeshi*; Kaiho, Katsuyuki*; Nakajima, Hideo; Okuno, Kiyoshi; CS Model Coil Test Group
Teion Kogaku, 38(8), p.425 - 433, 2003/08
The charge test of Central Solenoid Model Coil(CSMC) and Toroidal Field Insert Coil(TFIC) were carried out fo about one month from September 2001 with international collaboration under ITER EDA. In the experiment, Acoustic Emission(AE) signals were measured which were induced from CSMC and TFIC. It was the first trial to measure the AE signals from the insert coil directly. Relations among AE signals from TFIC, intensity, number and voltages are discussed in this paper.
Aoki, Kosuke*; Izumi, Yoshinobu*; Nishijima, Shigehiro*; Okuno, Kiyoshi; Koizumi, Norikiyo
IEEE Transactions on Applied Superconductivity, 13(2), p.1744 - 1747, 2003/06
Times Cited Count：1 Percentile：12.39(Engineering, Electrical & Electronic)The strand position in CIC conductor consisting of 1,152(3
4446) strands was analytically evaluated using Monte Carlo method. During the conductor fabrication, the conduit was compressed with the cable to fix the size and shape from one end. This makes the strands to be stretched along the axis. In the calculation, such manufacturing process was simulated. In addition, the contact energy between strands and the strain energy in the strands are considered. The calculation results show that the strands are moved by compressing the conduit. By this calculation, not only strand positions but also the distribution of contact stress between strands could be evaluated.
Sugimoto, Makoto; Nakajima, Hideo; Kato, Takashi; Okuno, Kiyoshi; Tsuji, Hiroshi; Rodin, I.*; Egorov, S. A.*
Teion Kogaku, 37(10), p.513 - 522, 2002/10
The Central Solenoid (CS) model coil programme has been carrying out since 1992 as a back born project in International Thermonuclear Experimental Reactor (ITER) Engineering Design Activity (EDA). The CS model coil programme has a plan to develop the toroidal fieled (TF) insert to demonstrate the conductor performance of ITER real TF coils under 13 T of magnetic flux density. The fabrication of TF insert was completed on May 2001 by D.V.Efremov Scientific Research Institute for Electrophysical Apparatus(Efremov institute) at St. Petersburg, Russia. Experiments including the cooldown and warmup were completed November 2001 at JAERI Naka. TF insert was achieved to charge up to 13T with 46kA without training under the back up magnetic field by the CS model coil.
Sugimoto, Makoto; Isono, Takaaki; Nunoya, Yoshihiko; Koizumi, Norikiyo; Nakajima, Hideo; Kato, Takashi; Matsukawa, Makoto; Hamada, Kazuya; Matsui, Kunihiro; Nishijima, Gen; et al.
IEEE Transactions on Applied Superconductivity, 10(1), p.564 - 567, 2000/03
Times Cited Count：22 Percentile：71.03(Engineering, Electrical & Electronic)no abstracts in English
Koizumi, Norikiyo; Takahashi, Yoshikazu; Kato, Takashi; Tsuji, Hiroshi; Shimamoto, Susumu*
Teion Kogaku, 35(3), p.132 - 142, 2000/03
no abstracts in English
Al conductor for toroidal coils of fusion reactorsKoizumi, Norikiyo; Ando, Toshinari; Sugimoto, Makoto; Takahashi, Yoshikazu; Tsuji, Hiroshi; Shimamoto, Susumi; Yamada, Yuichi*; *; *
Fusion Engineering and Design, 41, p.277 - 281, 1998/00
Times Cited Count：9 Percentile：60.39(Nuclear Science & Technology)no abstracts in English
Koizumi, Norikiyo; Takahashi, Yoshikazu; Nishi, Masataka; Isono, Takaaki; Tsuji, Hiroshi; *; *; Fujioka, T.*
JAERI-Research 97-002, 15 Pages, 1997/02
JAERI-Research-97-002.pdf:0.82MB
no abstracts in English
Koizumi, Norikiyo; *; Nishi, Masataka; K.Macfall*; Takahashi, Yoshikazu; Tsuji, Hiroshi; N.Mitchell*
Proc. of 15th Int. Conf. on Magnet Technology (MT-15), p.449 - 452, 1997/00
no abstracts in English
Al insert coilTakeuchi, Kazuhiro*; *; *; Asano, Katsuhiko*; Koizumi, Norikiyo; Ando, Toshinari; *; Tsuji, Hiroshi; Okuno, Kiyoshi
Proc. of 15th Int. Conf. on Magnet Technology (MT-15), p.417 - 420, 1997/00
no abstracts in English
*; Koizumi, Norikiyo; K.Macfall*; Ando, Toshinari; Takahashi, Yoshikazu; Tsuji, Hiroshi
Proc. of 15th Int. Conf. on Magnet Technology (MT-15), p.1299 - 1302, 1997/00
no abstracts in English
Koizumi, Norikiyo; *; Matsui, Kunihiro; Isono, Takaaki; Hamada, Kazuya; Takahashi, Yoshikazu; Tsuji, Hiroshi
Teion Kogaku, 32(6), p.263 - 270, 1997/00
no abstracts in English
Sugimoto, Makoto; *; Isono, Takaaki; Koizumi, Norikiyo; Nakajima, Hideo; Kato, Takashi; Nishi, Masataka; Takahashi, Yoshikazu; Ando, Toshinari; Tsuji, Hiroshi; et al.
IEEE Transactions on Magnetics, 32(4), p.2328 - 2331, 1996/07
Times Cited Count：6 Percentile：50.83(Engineering, Electrical & Electronic)no abstracts in English
Koizumi, Norikiyo; Takahashi, Yoshikazu; Tsuji, Hiroshi
JAERI-Data/Code 94-017, 19 Pages, 1994/12
JAERI-Data-Code-94-017.pdf:0.91MB
no abstracts in English
