An optimal design technique for MRI superconducting magnets using mathematical programming method

Author

Ishiyama, A. ; Yokoi, T. ; Takamori, S. ; Onuki, T.

Author_Institution

Dept. of Electr. Eng., Waseda Univ., Tokyo, Japan

Volume

24

Issue

2

fYear

1988

fDate

3/1/1988 12:00:00 AM

Firstpage

922

Lastpage

925

Abstract

An optimal design approach is described for a highly homogeneous coil system used in magnetic resonance imaging. The technique is based on combination of a numerical boundary-element method for analysis of the magnetic-field distribution and a mathematical programming method for solving the corresponding optimization problem using a nonlinear least-squares technique. The details of the algorithm and examples of its application to the design of a 1-T whole-body superconducting coil system are given. In the example the coil cross-sectional shape and the coil position are optimized.

Keywords

biomedical NMR; boundary-elements methods; least squares approximations; nonlinear programming; superconducting magnets; magnetic resonance imaging; magnetic-field distribution; mathematical programming; nonlinear least-squares technique; numerical boundary-element method; whole-body superconducting coil system; Coils; Current density; Laplace equations; Magnetic resonance imaging; Mathematical programming; Poisson equations; Superconducting magnets;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.11377

Filename

11377