# 3D Magnet Static Simulation Module

MSSM 3D computes spatial distribution of magnetic flux density by permanent magnet or magnetic coils .

## Description

MSSM 3D is a module to compute magnetic flux density by (A-phi) method for magneto-static equation based on Maxwell equation. Method of Discretization is Finite Element Method. The result will be used in plasma simulation module, PIC-MCCM 3D. MSSM computes the magnetic flux density in three-dimensional Cartesian coordinates. MSSM 3D has been developed in collaboration with mu-TEC Co.,LTD.## Input data

- Specify computational domain, shape of chamber, permanent magnets, magnetic coils and magnetic yokes defined by two-dimensional rectangular mesh system in Cartesian or cylindrical (axial symmetry model) coordinates.
- Specify magnetic characteristics, residual magnetic flux density (Br) and coercive forceă€€(bHc) for permanent magnets.
- Specify coil current for each magnetic coil.
- Magnetic characteristic data of yoke, S17C, is defined by internal database through PEGASUS/GUIM.

## Output data

- Spatial distributions of magnetic flux density ( by vector map and contour map).
- Line of magnetic force