MICE will reduce the transverse emittance of a muon beam over a single 7-meter cooling cell and measure that reduction.
[3] Pions will be produced from a target in the ISIS neutron source and transported along a beamline where most will decay to muons before entering MICE.
Cooling is tested with lithium hydride (LiH) crystals or liquid hydrogen (LH2) cells; magnets are used to focus and analyze the muon beam.
For efficient use of muons, it is desirable to have a reasonably good match between the transport beamline and the cooling channel, with selection performed in analysis.
[5] The muon emittance is measured with scintillating-fibre tracking detectors in a 4-Tesla magnetic field both before and after the main cooling cell.
While the secondary absorbers contribute to cooling, their main purpose is to stop electrons released in the RF cavities.