학술논문

Research and Development of a High-field Coil System – Development of a high-temperature superconducting magnet for ultrahigh-field MRI – / 高磁場コイルシステムの研究開発
Document Type
Journal Article
Source
低温工学 / TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan). 2017, 52(4):224
Subject
(Some figures in this article may appear in colour only in the electronic version)
REBCO
conduction-cooled
magnetic field homogeneity
magnetic field stability
ultrahigh-field MRI
Language
Japanese
ISSN
0389-2441
1880-0408
Abstract
A project for developing of RE1Ba2Cu3O7-δ (REBCO) magnets to be utilized in ultrahigh-field magnetic resonance imaging (MRI) was started in 2013. Our final targets are 9.4 T MRI systems for whole-body and brain imaging. In this project, two different development approaches towards the final target were planned. One is a small REBCO coil that can generate 10 Tclass magnetic fields, which is the same level as the target magnetic field. The other is a conduction-cooled 1.5 T REBCO MRI magnet that has a room-temperature bore of 396 mm, which is as large as those of mid-sized model magnets. These results were reflected in the design of a conduction-cooled 9.4 T REBCO magnet for whole-body MRI systems.