  We discuss the design of the muon capture front end for a \mu+-\mu- Collider.
In the front end, a proton bunch on a target creates secondary pions that drift
into a capture transport channel, decaying into muons. A sequence of rf
cavities forms the resulting muon beams into strings of bunches of differing
energies, aligns the bunches to (nearly) equal central energies, and initiates
ionization cooling. The muons are then cooled and accelerated to high energy
into a storage ring for high-energy high luminosity collisions. Our initial
design is based on the somewhat similar front end of the International Design
Study (IDS) neutrino factory.
