Currently, the R1 variable of this class corresponds to the distance to the furthest surface of the inner leg (from origin) - (i.e. the 'inner' surface of the inner leg from inside the coil). Outlined in #786, R1 should correspond to the nearest surface of the inner leg (from origin) - (i.e. the 'outer' surface of the inner leg from inside the coil), to be consistent with ToroidalFieldCoilTripleArc
Currently, the R1 variable of this class corresponds to the distance to the furthest surface of the inner leg (from origin) - (i.e. the 'inner' surface of the inner leg from inside the coil). Outlined in #786, R1 should correspond to the nearest surface of the inner leg (from origin) - (i.e. the 'outer' surface of the inner leg from inside the coil), to be consistent with ToroidalFieldCoilTripleArc