David Neuffer (Fermilab)
In a muon storage ring neutrino source, a high-intensity proton source produces pions from a target, and muons from pi-decay are collected and cooled, and then accelerated to 10-50 GeV energies, and inserted in a storage ring, where mu-decay produces neutrino beams. The accelerator must accept a large-emittance large-energy-spread beam. A superconducting rf (SRF) acceleration scenario using a 200MHz linac, and 200 to 400MHz recirculating linacs has been developed for the Fermilab feasibility study. This system, its variations, and alternatives will be described. R&D progress and requirements for further development of these concepts are discussed.
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