| The magnetic fields associated with reconnection in the edge of the Reversed Field Pinch configuration have been measured in the Madison Symmetric Torus. The measured magnetic field structure is compared for the first time with theoretical predictions computed in both toroidal and cylindrical geometry. The summation of multiple modes has been accomplished to reveal a complex but still coherent edge structure. Key terms of the relevant Ohm's law are accessible from magnetic field measurement, and reveal the ordering ( 1neJ x B >> E > eta J), which implies that two fluid effects are important in the physics governing this reconnection. Further, it is seen that the nonlinear 3-wave coupling of the Hall term acts as a driving mechanism for this linearly stable mode. |
