Title :
MRI Magnet Pole Plate Optimization Method by Fourier Decomposition
Author :
Punzo, Vincenzo ; Besio, S. ; Pittaluga, S. ; Trequattrini, A.
Author_Institution :
MRI Div., Esaote S.p.A., Naples, Italy
fDate :
6/1/2012 12:00:00 AM
Abstract :
A fast and reliable 2D optimization method is presented for the shaping of the pole plates of an open MRI magnet. The pole plates shape is determined by expanding the profile in Fourier series: different optimization methods have been analysed, starting from the initial magnetic field homogeneity with flat pole pieces and some results are given. The extension of this method to the real 3D corresponding case is illustrated.
Keywords :
Fourier series; approximation theory; magnetic resonance imaging; optimisation; permanent magnets; reliability; superconducting magnets; ίat pole pieces; 2D linear approximation; 3D corresponding case; Fourier decomposition; Fourier series; MRI magnet pole plate optimization method; MRI permanent magnet; initial magnetic ήeld homogeneity; magnetic resonance imaging permanent magnet; pole plates; reliable 2D optimization method; superconducting magnets; Harmonic analysis; Magnetic resonance imaging; Magnetostatics; Optimization; Shape; Superconducting magnets; Three dimensional displays; Magnetic resonance imaging; magnets; optimization;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2011.2176457
