The MICE Muon Beam on ISIS and the beam-line instrumentation of the Muon Ionization Cooling Experiment

Abstract

The international Muon Ionization Cooling Experiment (MICE), which is under\nconstruction at the Rutherford Appleton Laboratory (RAL), will demonstrate the\nprinciple of ionization cooling as a technique for the reduction of the\nphase-space volume occupied by a muon beam. Ionization cooling channels are\nrequired for the Neutrino Factory and the Muon Collider. MICE will evaluate in\ndetail the performance of a single lattice cell of the Feasibility Study 2\ncooling channel. The MICE Muon Beam has been constructed at the ISIS\nsynchrotron at RAL, and in MICE Step I, it has been characterized using the\nMICE beam-instrumentation system. In this paper, the MICE Muon Beam and\nbeam-line instrumentation are described. The muon rate is presented as a\nfunction of the beam loss generated by the MICE target dipping into the ISIS\nproton beam. For a 1 V signal from the ISIS beam-loss monitors downstream of\nour target we obtain a 30 KHz instantaneous muon rate, with a neglible pion\ncontamination in the beam.\n