Investigation on the diamagnetism effect of Y-based superconducting coils

2012 Fiscal Year Final Research Report

• Project/Area Number: 22560263
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Power engineering/Power conversion/Electric machinery
• Research Institution: Chiba University
• Principal Investigator: NAKAGOME Hideki 千葉大学, 大学院・工学研究科, 教授 (20375611)
• Co-Investigator(Renkei-kenkyūsha): MAEDA Hideaki 理化学研究所, 生命分子システム基盤研究領域, チームリーダー (40392120)
• Project Period (FY): 2010 – 2012
• Keywords: イットリウム系超伝導コイル / 反磁性効果

Research Abstract

Y-based superconducting coils are promising for various coil applications. However, the coils show diamagnetism effect which generates several problems such as reduction in center field. In this work, the effect was systematically investigated with experiments and numerical simulation to control the diamagnetism effect for coil applications.

Research Products

• [Journal Article] Generation of 24T at 4.2K using a layer-wound GdBCO insert coil with Nb3Sn and Nb-Ti coils, Superconductor Science and Technology (2012)
  • Author(s): S. Matsumoto, T. Kiyoshi, A. Otsuka, M. Hamada, H. Maeda, Y. Yanagisawa, H. Nakagome and H. Suematsu
  • Journal Title: Superconducting Science and Technology Volume: 25 Pages: 115-002
  • Peer Reviewed
• [Journal Article] Effect of coil current sweep cycle and temperature change cycle on the screening current-induced magnetic field for Ybco-coated conductor coils (2012)
  • Author(s): Yoshinori Yanagisawa, Yasuaki Kominato, Hideki Nakagome, Tatsuhiko Fukuda, Takuya Takematsu, Tomoaki Takao, Masato Takahashi, and Hideaki Maeda
  • Journal Title: ADVANCES INCRYOGENIC ENGINEERING Volume: 1434 Pages: 1373-1380
  • DOI: DOI:http://dx.doi.org/10.1063/1.4707063
  • Peer Reviewed
• [Journal Article] Magn itude of the screening field for YBCO coils, I EEE Transaction on Applied Superconductivi ty (2011)
  • Author(s): A. Otsuka, Y. Yanagisawa, T. Kiyoshi, H. Maeda, H. Nakagome, and M. Takeda
  • Journal Title: IEEE Transactionon Applied Superconductivit Volume: 21 Pages: 2076-2079
  • Peer Reviewed
• [Journal Article] Remarkable weakness against cleavage stress forYBCO-coated conductors and its effect on the YBCO coil performance (2011)
  • Author(s): T. Takematsu, T. Takao, N. Sato, M.Takahashi, and H. Maeda
  • Journal Title: Physica C Volume: 471 Pages: 480-485
  • Peer Reviewed
• [Journal Article] Magnitude of the screening field for YBCO coils, IEEE Transaction on Applied Superconductivity (2011)
  • Author(s): Y. Yanagisawa, Y. Kominato, H. Nakagome, R. Hu, T. Takematsu, T. Takao, D. Uglietti, T. Kiyoshi, M. Takahashi, and H. Maeda
  • Journal Title: IEEE Transaction on Applied Superconductivity Volume: 21 Pages: 1640-1643
  • Peer Reviewed
• [Journal Article] Opera tion of a 500 MHz high temperature superco nducting NMR: Towards an NMR spectromet eroperating beyond 1 GHz (2010)
  • Author(s): Y. Yanagisawa, H. Nakagome et.al
  • Journal Title: Journal of Magne tic Resonance Volume: 203 Pages: 274-282
  • Peer Reviewed
• [Journal Article] Measure ments of magnetic field induced by screening currents in YBCO solenoid coils (2010)
  • Author(s): D. Uglietti, Y. Yanagisawa et.al
  • Journal Title: Supercond ucting Scienceand Technology Volume: 23 Pages: 115-002
  • Peer Reviewed
• [Journal Article] Degradation of the performance of a YBCO-coatedconductor double pancake coil due to epoxy impregnation (2010)
  • Author(s): T. Takematsu, Y. Yanagisawa,H. Nakagom e et.al
  • Journal Title: Physica C Volume: 470 Pages: 674-677
  • Peer Reviewed
• [Journal Article] Effect of YBCO-Coil Shape on the Screening Current-I nduced Magnetic Field Intensity (2010)
  • Author(s): Yanagisawa,H. Nakagome et.al
  • Journal Title: IEEE Trans action on Applied Superconductivity Volume: 20 Pages: 744-747
  • Peer Reviewed
• [Journal Article] HTS-NMR: Present Status and Future Plan (2010)
  • Author(s): T. Kiyoshi, Y. Yanagisawa, H. Nakagome et.al
  • Journal Title: IEEE Transaction on Applied Superconductivity Volume: 20 Pages: 714-717
  • Peer Reviewed
• [Presentation] 高温超伝導材料を利用した次世代NMR技術の開発 (2013)
  • Author(s): 柳澤吉紀,朴任中,中込秀樹,濱田衛,松本真治,木吉司,末松浩人,滝沢杏奈,松田徹郎,高橋雅人,前田秀明
  • Organizer: 電力・エネルギーフォーラム「イットリウム系超電導コイル技術開発」Y系超電導コイル開発の現状と研究開発課題
  • Place of Presentation: 横浜
  • Year and Date: 2013-01-30
• [Presentation] イットリウム系高温超伝導マグネット技術の課題～特性劣化・クエンチ保護・遮蔽電流の観点から (2011)
  • Author(s): 柳澤吉紀
  • Organizer: 日本磁気科学会磁場発生分科会&東北大金研強磁場センター合同研究会
  • Place of Presentation: 仙台
  • Year and Date: 20111000
• [Presentation] Magnet Technolog y for YBCO-Coated Conductors, 24th Interna tional Symposium on Superconductivity (2011)
  • Author(s): Y. Yanagisawa, H. Nakagome, T. Takematsu, T. Takao, and H. Maeda^*
  • Organizer: 2011 Cryogenic Engineering Conference and the I nternational Cryogenic Materials Conference (CEC-ICMC)
  • Place of Presentation: Tokyo, Japan
  • Year and Date: 20111000
• [Presentation] Effect of coil load factor on the tempor al drift of the central magnetic field due to relaxation of the screening current for an Y BCO-coated conductor coil at 77K (2011)
  • Author(s): Y. Yanagisawa^*, Y. Kominato, H. Nakagome et.al
  • Organizer: 22nd Inte rnationalConference on Magnet Technology
  • Place of Presentation: Marseille, France
  • Year and Date: 20110900
• [Presentation] Effect of coil current sweep cycle and temperature change cycle on the screening c urrent-induced magnetic field for YBCO-coate dconductor coils (2011)
  • Author(s): Y. Yanagisawa^*, Y. Kominato, H. Nakagomeet.al
  • Organizer: 2011 Cryogenic EngineeringConference and the International Cryogenic Materials Conference (CEC-ICMC)
  • Place of Presentation: Spokane, WA, USA
  • Year and Date: 20110600
• [Presentation] Premature quenches due to existence of a degraded layer in YBCO-coated conductor pancake coils (2011)
  • Author(s): Y. Yanagisawa^*, E. Okuyama, H. Nakagome et.al
  • Organizer: 22nd International Conference on Magnet Technology
  • Place of Presentation: seille, France
  • Year and Date: 20110300
• [Presentation] Reduction in the magnitude of screening current-indu ced magnetic field for YBCO coils (2010)
  • Author(s): Y. Yanagisawa, H. Nakagome et.al
  • Organizer: Applied S uperconductivity Conference 2010
  • Place of Presentation: Washington D.C., USA
  • Year and Date: 20100800
• [Presentation] Degradation of YBCO coil performance d ue to epoxy impregnation (2010)
  • Author(s): H. Maeda, Y. Yanagisawa, H. Nakagome, et.al
  • Organizer: Applied Supercond uctivity Conference 2010
  • Place of Presentation: Washin gton D.C.,USA
  • Year and Date: 20100800
• [Presentation] Evaluation of the Screening Current in a1.3 GHz NMR Magnet Using ReBCO (2010)
  • Author(s): A.Otsuka, Y. Yanagisawa, H. Nakagome, et.al
  • Organizer: Appli ed Superconductivity Conference 2010
  • Place of Presentation: Washington D.C., USA
  • Year and Date: 20100800
• [Presentation] Towards a high temperature supercond ucting NMRbeyond 1GHz: Field stabilization for solid-state NMR in a 500MHz HTS NM R, WorldeWide Magnetic Resonance Conferen ce 2010 (2010)
  • Author(s): M. Takahashi, Y. Yanagisawa, H. Nakagome, et.al
  • Organizer: Joint EUROMAR 2010 and 17th IS MAR Conference
  • Place of Presentation: Florence, It aly
  • Year and Date: 20100704-09
• [Presentation] Towards an NMR spectrometer operating beyond 1 GHz: Operation of a 500 MHz hig h temperature superconducting NMR, Worlde Wide Magnetic Resonance Conference 2010 (2010)
  • Author(s): H. Maeda, Y. Yanagisawa, H. Nakagome, et.al.
  • Organizer: Joint EUROMAR 2010 and17th ISMAR Conf erence
  • Place of Presentation: Florence, Italy
  • Year and Date: 20100704-09