G. Franchetti, S. Gilardoni, P. Gruber, K. Hanke, H. Haseroth, E.B. Holzer, D. Kuchler, A.M. Lombardi, R. Scrivens (CERN)
Experimental and theoretical activities are under way at CERN with the aim of examining the feasibility of a very-high-flux neutrino source (10^21 neutrinos/year). In the present scheme, a high power proton beam (some 4 MW) bombards a target where pions are produced. The pions are collected and decay to muons in a controlled system. The muons are cooled and accelerated to a final energy of 50 GeV before being injected into a decay ring where they decay under well-defined condition of energy and emittance. We present one of the most challenging parts of the whole scenario, the muon capture, the ionisation-cooling and the first stage of the muon acceleration. Different schemes, their performance and the technical challenges are compared.
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