Two-dimensional magnetic field numerical simulation of 3 T superconducting dipole with iron yoke

A numerical investigation of a possibility to get an acceptable technological configuration of superconducting (SC) dipole that provides high-homogeneous 3 T field is carried out. The dependence of the field nonlinearity with a value of B induction is received. Two types of SC dipoles with rectangular aperture are compared. Two methods of two-dimensional magnetic field simulation in the magnets with rectangular aperture are compared. These calculations have been performed using POISSON and MIC2M programs. The results indicate that this SC dipole configuration provides the 3 T value of high-homogenous field in the magnet aperture, while the magnet induction inside the yoke does not exceed 2.1 T. The investigation has been performed at the Laboratory of High Energies and Laboratory of Computing Techniques and Automation, JINR. (orig.)