Magnetic Moment Method with the Idea of Magnetic Surface Charge Method

抄録

  Magnetic Moment Method (MMM) is well known for its ”lightweight” and simplicity of implementation; however, meshing must be carefully treated to obtain accurate results. In this paper, the MMM with the idea of the Magnetic Surface Charge method is proposed that is free from the meshing problem. Accelerator magnets; a C-shaped dipole and a quadrupole magnet, are analyzed, and it is shown that the proposed method outperforms currently available finite-element packages with respect to the CPU time and accuracy of the magnetic field.