Novel gradient coils designed using a boundary element method

Poole, Michael and Bowtell, Richard (2007) Novel gradient coils designed using a boundary element method. Concepts in magnetic resonance. Part B, Magnetic resonance engineering [electronic resource], 31B 3: 162-175. doi:10.1002/cmr.b.20091


Author Poole, Michael
Bowtell, Richard
Title Novel gradient coils designed using a boundary element method
Journal name Concepts in magnetic resonance. Part B, Magnetic resonance engineering [electronic resource]   Check publisher's open access policy
ISSN 1552-5031
Publication date 2007-08
Year available 2007
Sub-type Article (original research)
DOI 10.1002/cmr.b.20091
Volume 31B
Issue 3
Start page 162
End page 175
Total pages 14
Place of publication United States
Publisher Wiley
Language eng
Subject 010303 Optimisation
020302 Electrostatics and Electrodynamics
090303 Biomedical Instrumentation
090699 Electrical and Electronic Engineering not elsewhere classified
Abstract Boundary element methods offer a powerful approach for designing gradient coils, allowing the generation of coils wounds on arbitrarily shaped surface so as to produce any form of field variation that is consistent with Maxwell's equations. These methods are based on meshing the current carrying surface into an array of boundary elements. In this work, we have extended boundary element methods that have previously been used used for coil design and integrated a powerful mesh generating program so as to produce coils with totally arbitrary geometry. Four examples are used to illustrate how the modified method provides a single versatile coil design protocol. These relate to the design of: i) shielded head gradients with highly asymmetric surface geometry that give the highest possible gradient field strengths; ii) very short, shielded gradient coils to allow improved access to the subject; iii) bi-planar coils generating highly asymmetric, stepped magnetic fields for use in fast imaging by multiple acquisition with micro-B0 arrays (MAMBA); iv) an insertable set of head gradient coils with shoulder cut-outs
Keyword Gradient Coils
Boundary Element Method
BEM
Stream function method
MAMBA
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collections: Excellence in Research Australia (ERA) - Collection
School of Information Technology and Electrical Engineering Publications
 
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Created: Tue, 13 Jan 2009, 15:55:16 EST by Ms Lynette Adams on behalf of School of Information Technol and Elec Engineering