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RIKEN Center for Biosystems Dynamics Research Laboratory for Functional Ultra-High-Field Magnet Technology

Unit Leader: Yoshinori Yanagisawa (Ph.D.)

Research Summary

Yoshinori  Yanagisawa(Ph.D.)

A Nuclear Magnetic Resonance (NMR) spectrometer can analyze the structure of various substances such as biological samples, polymers, nanomaterials, and natural products using a magnetic field. The analytical performance of an NMR improves as the strength of the magnetic field increases. We will conduct research on cutting-edge magnet technology that integrates high-temperature superconductor wire, coils, and joints as a functional ultra-high magnetic field magnet for NMR. Based on the technology, we will develop the world’s highest magnetic field 1.3 GHz (30.5 Tesla) class NMR magnet as well as ultra-compact NMR magnets that do not consume liquid helium, to contribute to the research of biosystems dynamics through analyses of biological samples.

Main Research Fields

  • Engineering

Related Research Fields

  • Chemistry
  • Biology
  • Medicine, Dentistry & Pharmacy

Keywords

  • NMR
  • High-temperature superconductor
  • Ultra-high magnetic field

Selected Publications

  • 1. S. Takahashi, Y. Suetomi, T. Takao, Y. Yanagisawa, H. Maeda, Y. Takeda and J. Shimoyama.:
    "Hoop stress modification, stress hysteresis and degradation of a REBCO coil due to the screening current under external magnetic field cycling"
    IEEE Transaction on Applied Superconductivity 30, 4602607 (2020)
  • 2. Y. Suetomi, S. Takahashi, T. Takao, H. Maeda, and Y. Yanagisawa.:
    "A novel winding method for a no-insulation (NI) layer-wound REBCO coil to provide a short magnetic field delay and self-protect characteristics"
    Superconductor Science and Technology 32, 045003 (13pp) (2019)
  • 3. R. Piao, Y. Miyoshi, M. Yoshikawa, K. Saito, M. Hamada, S. Matsumoto, H. Suematsu, H. Mochida, T. Takao, Y. Suetomi, M. Takahashi, H. Maeda, and Y. Yanagisawa.:
    "Design and development of a compact 1 GHz (23.5 T)-class NMR magnet with Bi-2223 inner coils"
    IEEE Transaction on Applied Superconductivity, 29, 4300407 (2019)
  • 4. H. Maeda, J. Shimoyama, Y. Yanagisawa, Y. Ishii, M. Tomita.:
    "The MIRAI program and the new super-high field NMR initiative in Japan"
    IEEE Transaction on Applied Superconductivity 29, 4602409 (2019)
  • 5. H. Maeda and Y. Yanagisawa.:
    "Future prospects for NMR magnets: A perspective"
    Journal of Magnetic Resonance 306, 80-85 (2019)
  • 6. K. Ohki, T. Nagaishi, T. Kato, D. Yokoe, T. Hirayama, Y. Ikuhara, T. Ueno, K. Yamagishi, T. Takao, R. Piao, H. Maeda and Y. Yanagisawa.:
    "Fabrication, microstructure and persistent current measurement of an intermediate grown superconducting (iGS) joint between REBCO-coated conductors"
    Superconductor Science and Technology 30, 115017 (7pp) (2017)
  • 7. Y. Suetomi, K. Yanagisawa, H. Nakagome, M. Hamada, H. Maeda, and Y. Yanagisawa.:
    "Mechanism of notable difference in the field delay times of no-insulation layer-wound and pancake-wound REBCO coils"
    Superconductor Science and Technology, 29, 105002(9pp) (2016)
  • 8. R. Piao, S. Iguchi, M. Hamada, S. Matsumoto, H. Suematsu, A. T. Saito, J. Li, H. Nakagome, T. Takao, M. Takahashi, H. Maeda, and Y. Yanagisawa.:
    "High resolution NMR measurements using a 400 MHz NMR with an (RE)Ba2Cu3O7-x high-temperature superconducting inner coil: Towards a compact super-high-field NMR"
    Journal of Magnetic Resonance, 263, 164-171 (2016)
  • 9. K. Hashi, S. Ohki, S. Matsumoto, G. Nishijima, A. Goto, K. Deguchi, K. Yamada, T. Noguchi, S. Sakai, M. Takahashi, Y. Yanagisawa, S. Iguchi, T. Yamazaki, H. Maeda, R. Tanaka, T. Nemoto, H. Suematsu, T. Miki, K. Saito, and T. Shimizu.:
    "Achievement of 1020 MHz NMR"
    Journal of Magnetic Resonance, 256, 30-33 (2015)
  • 10. H. Maeda and Y. Yanagisawa.:
    "Recent developments in high-temperature superconducting magnet technology (Review)"
    IEEE Transaction on Applied Superconductivity, 24, 4602412, (2014)

Related Links

Lab Members

Principal investigator

Yoshinori Yanagisawa
Unit Leader

Core members

Renzhong Piao
Technical Scientist
Yu Suetomi
Special Postdoctoral Researcher

Contact Information

Central Research Building,
1-7-22 Suehiro-cho, Tsurumi-ku,
Yokohama City, Kanagawa,
230-0045, Japan
Tel: +81-(0)45-503-9477
Fax: +81-(0)45-503-9446
Email: yoshinori.yanagisawa [at] riken.jp

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