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.
|Title of host publication||Magnetic Particle Imaging|
|Editors||Thorsten M. Buzug, Jörn Borgert|
|Number of pages||5|
|Publisher||Springer Berlin Heidelberg|
|Publication status||Published - 04.05.2012|
|Event||2th International Workshop on Magnetic Particle Imaging (IWMPI 2012) - Lübeck, Germany|
Duration: 15.03.2012 → 16.03.2012