@article{2b2b0310ae8147cb81b9d5a67f2dfc5f,
title = "Project Overview of HTS Magnet for Ultra-high-field MRI System",
abstract = "A project to develop an ultra-high-field magnetic resonance imaging (MRI) system based on HTS magnets using (RE)Ba2Cu3O7 (REBCO; RE=rear earth) coils is underway. The project is supported by the Japanese Ministry of Economy, Trade and Industry and aims to establish magnet technologies for a whole-body 9.4 T MRI system. REBCO wires have high critical current density in high magnetic fields and high strength against hoop stresses, and therefore, MRI magnets using REBCO coils are expected to have cryogenic systems that are smaller, lighter, and simpler than the conventional ones. A major problem in using REBCO coils for MRI magnets is the huge irregular magnetic field generated by the screening current in REBCO tapes. Thus, the main purpose of this project is to make the influence of this screening current predictable and controllable. Fundamental technologies, including treatment of the screening currents, were studied via experiments and numerical simulations using small coils. Two types of model magnets are planned to be manufactured, and the knowledge gained in the development of the model magnets will be reflected in the magnet design of a whole-body 9.4 T MRI system.",
keywords = "HTS coil, MRI, Magnet, REBCO, Screening current, Ultra-high field",
author = "Taizo Tosaka and Hiroshi Miyazaki and Sadanori Iwai and Yasumi Otani and Masahiko Takahashi and Kenji Tasaki and Shunji Nomura and Tsutomu Kurusu and Hiroshi Ueda and So Noguchi and Atsushi Ishiyama and Shinichi Urayama and Hidenao Fukuyama",
note = "Funding Information: A project to develop an ultra-high-field magnetic resonance imaging (MRI) system based on HTS magnets using (RE)Ba2Cu3O7 (REBCO; RE=rear earth) coils is underway. The project is supported by the Japanese Ministry of Economy, Trade and Industry and aims to establish magnet technologies for a whole-body 9.4 T MRI system. REBCO wires have high critical current density in high magnetic fields and high strength against hoop stresses, and therefore, MRI magnets using REBCO coils are expected to have cryogenic systems that are smaller, lighter, and simpler than the conventional ones. A major problem in using REBCO coils for MRI magnets is the huge irregular magnetic field generated by the screening current in REBCO tapes. Thus, the main purpose of this project is to make the influence of this screening current predictable and controllable. Fundamental technologies, including treatment of the screening currents, were studied via experiments and numerical simulations using small coils. Two types of model magnets are planned to be manufactured, and the knowledge gained in the development of the model magnets will be reflected in the magnet design of a whole-body 9.4 T MRI system. {\textcopyright} {\textcopyright}20 2150 1P5u bTlihseh eAdu btyh oErlss.e vPiuebr lBis.Vhe. dT hbiys iEs lasne voipeernB a.cVce. ss article under the CC BY-NC-ND license (Phettepr:-/r/cerveiaetwiv eucnodmemr orenssp.oorngs/liibcielnitsyeso/bf yth-nec -InSdS/ 42.00/1)4. Program Committee. Peer-review under responsibility of the ISS 2014 Program Committee Funding Information: This work has supported by the Ministry of Economy, Trade and Industry of the Japanese Government.; 27th International Symposium on Superconductivity, ISS 2014 ; Conference date: 25-11-2014 Through 27-11-2014",
year = "2015",
doi = "10.1016/j.phpro.2015.05.122",
language = "English",
volume = "65",
pages = "217--220",
journal = "Physics Procedia",
issn = "1875-3884",
publisher = "Elsevier BV",
}