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

Volume

22

Issue

3

fYear

2012

fDate

6/1/2012 12:00:00 AM

Firstpage

4401804

Lastpage

4401804

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;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2011.2176457

Filename

6095331