ABSTRACT
We will work in axisymmetric geometry and use standard cylindrical coordinates (R,φ, Z); see Figure 4.1. We seek axisymmetric solutions so that all derivatives with respect to φ are set to zero:
∂
∂φ = 0. (4.2)
The magnetic field B can be written as the curl of the vector potential,
A = (AR, Aφ, AZ).