Author： Tomasi D. Caparelli E.C. Panepucci H. Foerster B.
Publisher： Academic Press
ISSN： 1090-7807
Source： Journal of Magnetic Resonance, Vol.140, Iss.2, 1999-10, pp. : 325-339
Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.
Abstract
This work presents an approach for fast optimization of gradient coils, using the simulated annealing method. The shielding condition derived from a target field method and the analytical evaluation of the fields produced by simple geometries were used to reduce the computing time. This method is applied to the optimization of a shielded biplanar gradient coil set. Efficiency, inductance, and homogeneity of the gradient fields produced by the optimized geometries were studied as a function of the number of wires, for the longitudinal and transverse gradient coils. A prototype of the gradient set was made to test the proposed design method. The resulting experimental values of coil efficiency, inductance, field linearity, and shielding performance exhibit good agreement between theory and experiment.
Related content
Multilayer Gradient Coil Design
Journal of Magnetic Resonance, Vol. 131, Iss. 2, 1998-04 ,pp. :
Access to resources
Recommend
A Field-Gradient Coil Using Concentric Return Paths
By Brey W.W. Mareci T.H. Dougherty J.
Journal of Magnetic Resonance - Series B, Vol. 112, Iss. 2, 1996-08 ,pp. :