Controlling the Diameter of a Pure Electron Plasma to Produce an Exact Two-Fluid Plasma State in a Nested Trap

Abstract

Methods for controlling accurately the diameter de of a pure electron plasma in a nested trap of the BX-U machine are described. By controlling the acceleration voltages and the number of electron guns activated, we can successfully change de over the range between 0.28 and 2.27 cm. Therefore, de can be made almost exactly the same as the diameter of a lithium ion plasma enabling the investigation of a two-fluid plasma state by using non-neutral plasmas.