Current losses in wire array Z-pinches on the Z generator

The three-dimensional resistive magnetohydrodynamics (MHD) simulations of wire array loads and sections of the power feed which is coupled to a four level transmission line equivalent model of the Z-generator are presented. The convolute loss on Z is detailed both before and after its recent refurbishment, which is described by a resistive plasma short forming from the motion of plasma into the convolute. And current and voltage diagnostic are used combined with load and feed simulations to quantify current loss in the final power feed, and how this loss is reduced through the choice of feed geometry is also described.