Model gradient coil employing active acoustic control for MRI.

Model gradient coil employing active acoustic control for MRI. Research Abstract Details 

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Model gradient coil employing active acoustic control for MRI. Abstract Text:

B Haywood,B Chapman,P Mansfield,B Haywood,B Chapman,P Mansfield,

Results are presented for a model three-axis gradient coil incorporating active acoustic control which is applied to the switched read gradient during a single-shot rapid echo-planar imaging (EPI) sequence at a field strength of 3.0 T. The total imaging acquisition time was 10.6 ms. Substantial noise reduction is achieved both within the magnet bore and outside the magnet. Typical internal noise reduction over the specimen area is 40 dB(A) whereas outside the acoustic chamber the noise level is reduced by 60-67 dB(A). However these results are relative to a control winding which is switched in phase, adding 6 dB(A) in its non-optimized mode, which is included in the quoted figures.

Model gradient coil employing active acoustic control for MRI. Publishing Authors By Initials

B Haywood,B Chapman,P Mansfield,B Haywood,B Chapman,P Mansfield,

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Model gradient coil employing active acoustic control for MRI. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Magma (New York, N.Y.)

VOLUME: 20

Page Numbers: 223-31

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ISSN: 0968-5243

DAY: 15

MONTH: 11

YEAR: 2007

Model gradient coil employing active acoustic control for MRI. Information

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LANGUAGE: eng

NlmUniqueID: 9310752

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Grant and Affiliation Information for Model gradient coil employing active acoustic control for MRI.

AFFILIATION: Sir Peter Mansfield Magnetic Resonance Centre, University of Nottingham, University Park, Nottingham, NG7 2RD, UK, brett@bhaywood.freeserve.co.uk.

Country: Germany

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MEDLINETA: MAGMA

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