Muon beam emittance evolution in the helical ionization cooling channel for bright muon sources

Abstract

Characteristic of a helical lattice for six dimensional muon ionization cooling will be presented to utilize for a bright muon source. The beta function and the dispersion in the lattice are tunable by adjusting the helical magnetic component. As a result, the cooling decrements and the equilibrium beam emittance in transverse and longitudinal phase spaces are flexible. A helical magnetic component can be adjusted by changing the geometry of helical solenoid magnets. Manipulating a cooling path is an important capability in a bright muon source to serve a high quality muon beam for various muon beam applications.