Electromagnetic inverse problem of magnetoacoustic tomography with magnetic induction

Magnetoacoustic tomography with magnetic induction (MAT-MI) is a new imaging method aimed at obtaining the distribution of conductivity. In this paper, the distribution of time varying electromagnetic field in three dimensional model generated by the given pulse magnetic field is calculated. Meanwhile, our reconstruction technique to obtain the distribution of conductivity in MAT-MI without the rotation of static magnetic field is presented. The results may provide some theoretical foundation for the further research on the three dimension reconstruction method of the MAT-MI.