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    Issues in Acceleration of A Muon Beam for a Neutrino Factory

    We have developed a concept for acceleration of a large phase-space, pulsed muon beam from 190 MeV to 50 GeV as part of a collaborative study of the feasibility of a neutrino factory based on in-flight decay of muons. The muon beam's initial energy sprea d was ~20% and each bunch has the physical size of a soccer ball. Production of the muons will be quite expensive, so prevention of loss due to scraping or decay is critical. The former drives the system to large apertures and the latter calls for high real-estate-average gradients. The solution to be presented utilizes a 3 GeV linac to capture the beam, a 4-pass recirculating linac to get the beam to 10 GeV, and then a 5-pass linac to get the beam to 50 GeV. Throughout the system, longitudinal dynami cs issues far outweighed transverse dynamics issues. This paper focuses on the issues surrounding the choice of superconducting rf structures over copper structures.

    This work was supported by the U.S. DOE Contract No. DE-AC05-84ER40150.

    Authors: J. Delayen, D. Douglas, L. Harwood, V. Lebedev, C. Leemann, L. Merminga

    Abstract submitted to PAC 2001, Chicago, IL, June 18-24, 2001

    Updated July 27, 2001



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