A simulation study for a novel generation method of electro-drive rotating Field free line

As a novel tomography methodology, Magnetic Particle Imaging (MPI) has been obtained more and more attentions. It has been proven in theory that the Field-free line based MPI has about 10 times of sensitivity than the Field-free point based MPI [1]. Then, the generation and rotation of FFL has become the crucial problem for the realization of Projection-Reconstruction Algorithm based MPI. So far, there are mainly two approaches to generate and rotate a FFL. One way is electro-drive [2], the other is mechanically. The electric way is obviously more flexible and fast than the mechanical way. According to the mirror image rule [3], a novel coil design was proposed in this paper to generate a rotating FFL electronically, and a simulation study was performed to testify its feasibility.