constant_fields

• description: Defines constant field components to be imposed on the simulation. These field components are not necessarily physical in that they may not satisfy Maxwell's equations.

• example:

  &constant_fields
      Ez = 1e3,
      Bz = 1,
  &end
  

  This command specifies a constant longitudinal electric field of 1 kV/m and a constant longitudinal magnetic field of 1 T. Note that these are physically possible, at least in the absence of metallic or magnetic materials.

• synopsis and defaults:

  &constant_fields
      double Ez = 0;
      double Er = 0;
      double Ephi = 0;
      double Bz = 0;
      double Br = 0;
      double Bphi = 0;
  &end
  

• details:
  • Ez: Specifies longitudinal electric field in V/m.
  • Er: Specifies radial electric field in V/m.
  • Ephi: Specifies azimuthal electric field in V/m.
  • Bz: Specifies longitudinal magnetic field in T.
  • Br: Specifies radial magnetic field in T.
  • Bphi: Specifies azimuthal magnetic field in T.