| Design of arbitrarily homogeneous permanent magnet systems for NMR and MRI: theory and experimental developments of a simple portable magnet. | |
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MedLine Citation:
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PMID: 20451431 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Starting from general results of magnetostatics, we give fundamental considerations on the design and characterization of permanent magnets for NMR based on harmonic analysis and symmetry. We then propose a simple geometry that takes advantage of some of these considerations and discuss the practical aspects of the assembly of a real magnet based on this geometry, involving the characterization of its elements, the optimization of the layout and the correction of residual inhomogeneities due to material and geometry imperfections. We report with this low-cost, light-weight magnet (100 euros and 1.8 kg including the aluminum frame) a field of 120 mT (5.1 MHz proton) with a 10 ppm natural homogeneity over a sphere of 1.5 mm in diameter. |
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Authors:
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Cedric Hugon; Francesca D'Amico; Guy Aubert; Dimitris Sakellariou |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2010-04-10 |
Journal Detail:
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Title: Journal of magnetic resonance (San Diego, Calif. : 1997) Volume: 205 ISSN: 1096-0856 ISO Abbreviation: J. Magn. Reson. Publication Date: 2010 Jul |
Date Detail:
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Created Date: 2010-06-14 Completed Date: 2010-09-17 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9707935 Medline TA: J Magn Reson Country: United States |
Other Details:
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Languages: eng Pagination: 75-85 Citation Subset: IM |
Copyright Information:
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Copyright (c) 2010 Elsevier Inc. All rights reserved. |
Affiliation:
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CEA, DSM, IRAMIS, SIS2M, LSDRM CEA Saclay F-91191 Gif-sur-Yvette, France. cedric.hugon@cea.fr |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Algorithms Electromagnetic Fields Equipment Design Iron / chemistry Magnetic Resonance Imaging / instrumentation* Magnetic Resonance Spectroscopy / instrumentation* Magnetics / instrumentation* |
| Chemical | |
Reg. No./Substance:
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7439-89-6/Iron |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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