Studies of a continuous flow pitch

A steady one-dimensional ideal isentropic flow model for the Continuous Flow Pinch is discussed. In spite of its simplicity the model accounts for the basic features of the Flow Pinch. The necessity of the existence of a shock is shown and the shock position as a function of various parameters is commented upon. Two important parameters in this model are β, the ratio of plasma to magnetic field density, and γ, the ratio of the specific heats. The dependence of the flow parameters on β and γ is discussed. A computer simulation of the Continuous Flow Pinch which utilizes the Focus Code is also presented. The dynamical formation and the structure of the plasma source in front of the central electrode, and the wake shock that develops are resolved. (author)