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A Three-Dimensional Physical Model of MRI Noise Based on Current Noise Sources in a Conductor

✍ Scribed by Michael J Hennessy

Publisher
Elsevier Science
Year
2000
Tongue
English
Weight
759 KB
Volume
147
Category
Article
ISSN
1090-7807

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✦ Synopsis

Magnetic flux noise is generated by any conductor in equilibrium with a bath as a result of random fluctuating currents. A physical model of this flux noise is proposed, based on allowable current patterns in the conductor, which we describe as natural current modes. This model gives insight into the spatial characteristics of the magnetic noise which is encountered in a variety of magnetic measurements and imaging modalities such as magnetic resonance imaging (MRI).

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