Author: Cobb, J.H.
Paper Title Page
MOP022 The Expected Performance of MICE Step IV 151
 
  • T. Carlisle, J.H. Cobb
    JAI, Oxford, United Kingdom
 
  Funding: STFC
The international Muon Ionization Cooling Experiment (MICE), under construction at the Rutherford Appleton Laboratory in Oxfordshire (UK), is a test of a prototype cooling channel for a future Neutrino Factory. The experiment aims to achieve, using liquid hydrogen absorbers, a 10% reduction in transverse emittance, measured to an accuracy of 1% by two scintillating fibre trackers within 4 T solenoid fields. Step IV of MICE will begin in 2012, producing the experiment's first cooling measurements. Step IV uses an absorber focus coil module, placed between the two trackers, to house liquid hydrogen or solid absorbers. The performance of Step IV using various absorber materials was simulated. Multiple scattering in high Z absorbers was found to mismatch the beam with the lattice optics, which was largely corrected by re-tuning the MICE lattice accordingly.
 
 
MOP023 Particle Tracking and Beam Matching Through the New Variable Thickness MICE Diffuser 154
 
  • V. Blackmore, J.H. Cobb, M. Dawson, J. Tacon, M. Tacon
    Oxford University, Physics Department, Oxford, Oxon, United Kingdom
 
  The Muon Ionisation Cooling Experiment (MICE) aims to demonstrate the transverse cooling of muons for a possible future Neutrino Factory or Muon Collider. The diffuser is an integral part of the MICE cooling channel. It aims to inflate the emittance of the incoming beam such that cooling can later be measured in the MICE channel. A novel new diffuser design is currently in development at Oxford, consisting of a high density scatterer of variable radiation lengths. Simulations have been carried out in order to fully understand the physics processes involved with the new diffuser design and to enable a proper matching of the beam to the MICE channel.