3D gradient coil design - toroidal surfaces

While, P., Forbes, L. and Crozier, S. (2009) 3D gradient coil design - toroidal surfaces. Journal of Magnetic Resonance, 198 1: 31-40. doi:10.1016/j.jmr.2009.01.006


Author While, P.
Forbes, L.
Crozier, S.
Title 3D gradient coil design - toroidal surfaces
Journal name Journal of Magnetic Resonance   Check publisher's open access policy
ISSN 1090-7807
Publication date 2009-05-01
Year available 2009
Sub-type Article (original research)
DOI 10.1016/j.jmr.2009.01.006
Open Access Status DOI
Volume 198
Issue 1
Start page 31
End page 40
Total pages 10
Editor S.J. Opella
Place of publication USA
Publisher Academic Press
Language eng
Subject 090399 Biomedical Engineering not elsewhere classified
861502 Medical Instruments
970109 Expanding Knowledge in Engineering
C1
Abstract Gradient coil design typically involves optimisation of current densities or coil windings on familiar cylindrical, planar, spherical or conical surfaces. In this paper, an analytic inverse method is presented for the theoretical design of toroidal transverse gradient coils. This novel geometry is based on previous work involving a 3D current density solution, in which the precise geometry of the gradient coils was obtained as part of the optimisation process. Regularisation is used to solve for the toroidal current densities, whereby the field error is minimised in conjunction with the total power of the coil. The method is applied to the design of unshielded and shielded, whole-body and head coil gradient systems. Preliminary coil windings displaying high gradient homogeneity, low inductance, high efficiency and good force balancing are displayed and discussed. Potential benefits associated with this morphology include self-shielding gradient sets, greater access to cooling mechanisms, a reduction in acoustic noise due to force-balancing, a lessening of patient claustrophobia and greater patient access for clinicians. Crown Copyright (C) 2009 Published by Elsevier Inc. All rights reserved.
Keyword Magnetic resonance imaging (MRI)
TARGET-FIELD METHOD
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2010 Higher Education Research Data Collection
School of Information Technology and Electrical Engineering Publications
 
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Created: Thu, 03 Sep 2009, 18:17:59 EST by Mr Andrew Martlew on behalf of School of Information Technol and Elec Engineering