Pulsed high current optics for p production at 5.4 GeV/c

To minimize the p collection time for pp storage ring, the phase space density of antiprotons must be maximized within the acceptance of the antiproton cooler/accumulator. This is achieved by optimization of target geometry, target material, proton beam focusing, and antiproton collection optics. The target-station design is described for the Fermilab antiproton source. The principal difficulties arise from the need for a very intense small proton beam on the target and for a collection device with very strong focusing to handle a wide range of angles and momenta for the antiprotons diverging from the target. Special high gradient focusing devices have been developed to meet these needs.