Title :
Coils for MRI Applications
Author :
Yao, Weijun ; Bascuñán, Juan ; Hahn, Seungyong ; Iwasa, Yukikazu
Author_Institution :
FBML, MIT, Cambridge, MA, USA
fDate :
6/1/2010 12:00:00 AM
Abstract :
In this paper, we report our progress in the development of a low cost, liquid-helium-free MgB2 superconducting MRI magnet. Several technical issues related to the construction of such a magnet to operate in persistent current mode are discussed, namely, the performance consistency of long length MgB2 conductors, the fabrication of superconducting joints and persistent current switches. Quench detection and protection of such magnets operated in solid nitrogen environment are also discussed.
Keywords :
biomedical MRI; biomedical equipment; boron alloys; cryogenics; magnesium alloys; superconducting coils; superconducting magnets; superconducting switches; MRI Applications; MgB2; MgB2 Coils; MgB2 superconducting magnet; long length MgB2 conductors; persistent current mode operation; persistent current switch fabrication; quench detection; quench protection; solid nitrogen environment; superconducting joint fabrication; ${rm MgB}_{2}$ superconductor; HTS/LTS magnet; NMR magnet; persistent mode;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2010.2044035