A helical coil of a reverse field pinch discharge

A computer model of the coupling between the toroidal and poloidal field circuits in a reversed field pinch, (RFP), has been developed. It is shown that a helical coil can be used as a simple representation of a plasma in order to describe this coupling. Comparison is made with experiments in the Extrap T1u device, operating in RFP-mode. A mutual inductance can be defined, closely related to the F-/spl theta/ curve, usually used in the description of a reversed field pinch.<
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