Ion Loading and Acceleration in a Static-Field ERA

The design concept of the Maryland Static-Field ERA is briefly reviewed. Two schemes of ion loading are being studied: 1. Fast loading by passing the electron ring through a gas region with pressures in the range of 10-3 torr 2. Stopping of the ring by resistive wire damping and slow ion loading while the ring is trapped in a small mirror well. & cceleration of the ions by the expansion and external E - field methods is discussed and the pertinent equations are presented. trameters for a possible heavy-ion ERA pruducing 1011 or more ions of energies up to 1500 MeV (uranium) are estimated.