Dipoles are parameterized using a simple polynomial fit to vary the B-field in the z direction.

<fields>
    <field type="Dipole" 
           name="TestDipole" 
           zmax="100.0" 
           zmin="-100.0" 
           rmax="1000.0">
        <dipoleCoeff value="1.0"/>
        <dipoleCoeff value="0.5"/>
    </field>
</fields>

The dipole will not be applied if the point is not within the zmin, zmax, and rmax values.

  • zmin - minimum z coordinate
  • zmax - maximum z coordinate
  • rmax - maximum cylindrical radius
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