RIKEN Center for Biosystems Dynamics Research Next-Generation Magnet Development Collaboration Unit
Unit Leader: Yoshinori Yanagisawa (Ph.D.)
Research Summary
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 conduct research and development on cutting-edge magnet technology that integrates high-temperature superconductor wire, coils, and joints as next-generation high-field magnets for NMR. Based on the technology, we will develop the world’s highest magnetic field NMR magnet as well as ultra-compact NMR magnets without consumption of liquid helium, to contribute to the research of biosystems dynamics through analyses of biological samples.
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
- Toshio Yamazaki
- Senior Scientist
- Kensuke Kobayashi
- Research Scientist
- Renzhong Piao
- Technical Scientist
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