Development of a beam sweeping system for the Fermilab antiproton source target

Intensity of the incident 120-GeV proton beam on the antiproton production target is scheduled to increase to 5/spl times/10/sup 12/ protons per pulse. To prevent damage to the target, we plan to spread the hot spot on target with a beam sweeping system. Now under development are rotating-field magnets for installation upstream and downstream of the target. These magnets will deflect the beam in a circular pattern on the target. Peak current of 7 kA and peak voltage drop of 6 kV are expected. The power supply, which is separated from the magnet by a distance of about 10 m, utilizes magnetic pulse compression by saturating inductors to drive the magnets through the long transmission lines.