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Aperture studies for the AP2 anti-proton Line at Fermilab

  • Author(s): Reichel, Ina
  • Zisman, Michael
  • Placidi, Massimo
  • et al.
Abstract

The AP2 beamline transports anti-protons from the production target to the Debuncher ring. For many years the observed aperture has been smaller than that estimated from linear, on-energy optics. We have investigated possible reasons for the aperture restriction and have identified several possible sources, including residual vertical dispersion from alignment errors and chromatic effects due to very large chromatic lattice functions. We discuss the possible sources, suggest some remedies, and propose specific studies, where needed, to evaluate suspected problems.

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