機能性超高磁場マグネット技術研究ユニット
研究内容
核磁気共鳴(NMR: Nuclear Magnetic Resonance)装置は、磁場を利用した分析装置です。生体試料・高分子・ナノ材料・天然物など様々な物質の構造を明らかにでき、その分析性能は磁場が高くなるほど向上します。本ユニットでは、NMR用の機能性超高磁場マグネットとして、高温超伝導の線材・コイル・接合技術を統合した最先端マグネット技術研究を行います。これを礎とし、世界一高い磁場の1.3 GHz(30.5 テスラ)級NMR マグネットや、希少資源である液体ヘリウムを消費しない超コンパクトNMRマグネット等を開発し、生体試料等の解析を通して生命機能科学の進展に貢献します。
研究テーマ
- 核磁気共鳴(NMR)
- 高温超伝導
- 超高磁場
主要論文
- Takahashi S, Suetomi Y, Takao T, et al.
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) - Suetomi Y, Takahashi S, Takao T, et al.
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) - Piao R, Miyoshi Y, Yoshikawa M, et al.
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) - Maeda H, Shimoyama J, Yanagisawa Y, et al.
The MIRAI program and the new super-high field NMR initiative in Japan.
IEEE Transaction on Applied Superconductivity 29, 4602409 (2019) - Maeda H, Yanagisawa Y. Future prospects for NMR magnets: A perspective. Journal of Magnetic Resonance 306, 80-85 (2019)
- Ohki K, Nagaishi T, Kato T, et al.
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) - Suetomi Y, Yanagisawa K, Nakagome H, et al.
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) - Piao R, Iguchi S, Hamada M, et al.
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) - Hashi K, Ohki S, Matsumoto S, et al.
Achievement of 1020 MHz NMR.
Journal of Magnetic Resonance 256, 30-33 (2015) - Maeda H, Yanagisawa Y.
Recent developments in high-temperature superconducting magnet technology. (Review)
IEEE Transaction on Applied Superconductivity 24, 4602412 (2014)