Title :
A study on optimal coil configurations in a split-type superconducting MRI magnet
Author :
Kakugawa, S. ; Hino, N. ; Komura, Akiyoshi ; Kitamura, M. ; Takeshima, H. ; Honmei, T.
Author_Institution :
Res. Lab., Hitachi Ltd., Ibaraki, Japan
fDate :
6/1/1999 12:00:00 AM
Abstract :
Optimal coil configurations in a split-type superconducting MRI magnet have been investigated, and the feasibility of the compact and high performance magnet is presented. A highly homogeneous magnetic field of about 10 ppm/50 cm diameter spherical volume (DSV) is attainable by eliminating error fields of higher orders and, moreover, the radius of the outermost coil can be reduced to about 70 percent of that of the magnet with positive current simply by alternately arranging coils with positive and negative currents.
Keywords :
biomedical MRI; magnetic fields; superconducting coils; superconducting magnets; compact magnet; error fields elimination; high performance magnet; highly homogeneous magnetic field; negative currents; optimal coil configurations; positive currents; split-type superconducting MRI magnet; Biomedical imaging; Current distribution; Laboratories; Magnetic fields; Magnetic resonance imaging; Medical diagnosis; Medical diagnostic imaging; Optimization methods; Superconducting coils; Superconducting magnets;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
