Abstract
A helical cooling channel (HCC) has been proposed to quickly reduce the six‐dimensional phase space of muon beams for muon colliders, neutrino factories, and intense muon sources. Simulation studies of the HCC have already verified the use of a channel with solenoidal, and helical magnetic fields of constant amplitude where, by moving to a rotating frame, a z or time‐independent Hamiltonian can be obtained for detailed analytic treatment. In the discussion below, the HCC concept has been extended to have momentum‐dependent magnetic field strengths for a six‐dimensional M_uon collider A_nd N_eutrino factory muon beam cooling demonstration eX_periment (MANX). The simulation studies reported here for this experiment have shown that liquid helium can be used as an energy absorber and coolant for superconducting magnetic coils and that the HCC parameters can be varied to reduce the maximum required field magnitudes. These developments make the experiment more practical in that safety requirements are relaxed and the required fields can be achieved with existing technology.
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