Efficient Positioning of the Field-Free Point in Magnetic Particle Imaging

Tobias Knopp, TimoF. Sattel, ThorstenM. Buzug


Magnetic particle imaging uses a field with a single field-free point for spatial encoding. Such a gradient field can be generated by a Maxwell coil pair consisting of two opposing coils driven by current flowing in converse directions. In order to sample the volume in-between the coils, the field-free point has to be moved through space. When keeping the gradient strength constant the electrical power loss of the Maxwell coil pair setup drastically increases when moving the field-free point off-center. In this paper a coil configuration is proposed, which consists of four coils and considerably reduces the electrical power loss for off-center field-free point generation.
Original languageEnglish
Title of host publicationMagnetic Particle Imaging
EditorsThorsten M. Buzug, Jörn Borgert
Number of pages5
PublisherSpringer Berlin Heidelberg
Publication date04.05.2012
ISBN (Print)978-3-642-24132-1
ISBN (Electronic)978-3-642-24133-8
Publication statusPublished - 04.05.2012
Event2th International Workshop on Magnetic Particle Imaging (IWMPI 2012) - Lübeck, Germany
Duration: 15.03.201216.03.2012


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