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We review several aspects of the production and the collection of antiprotons produced by high energy beams of high intensity. The goal is to optimize in cost the number of antiprotons of given momentum bite one can accumulate per unit of time. Aspects which are dealt with entail the antiproton production spectrum, proton beam emittance, multiple scattering, antiproton acceptance, and phase-space matching, including chromaticity. Several hardware alternatives are considered.