A 40-80 MHz system for phase rotation and cooling

In this note a scheme for the collection, phase rotation and cooling of muons for a neutrino factory is reported. The scheme is sufficiently generic to be site independent also if some particular choices are influenced by the CERN design. The system discussed in this note is worked on as a possible alternative to the induction linac scheme [1]. The results presented assume the following overall set-up: the proton driver is constituted by a 2.2 GeV superconducting linac [2] followed by an accumulator and compressor ring [3]; the muon re-circulator and decay ring are assumed as described in PJK scenario [4].