The use of superconducting solenoids in a muon collider

Superconducting solenoids are integral part of the proposed muon collider and Higgs factory. Superconducting solenoids that produce inductions up to 15 T will be used to capture pions that are produced by a proton beam impinging on a target contained within the solenoid. After the pions are captured they are phase rotated and allowed to decay to muons. The phase rotation and pion decay channel keeps the pions and muons captured in a 1.25 T rotation system. Superconducting solenoids will also be integral part of the muon cooling system. Within the muon cooling channel, which is projected to be up to 300 meters long, solenoidal fields up to 30 T are needed. This report presents the latest thoughts on how superconducting solenoids will be used as part of the muon collider.