CyDet: Requirements

• Observes particles emitted from muons stopped in Aluminium target

• Needs to identify 105 MeV/c e{ and reject most background (mainly lower energy e{ from muon decay-in-orbit )

• good momentum resolution to maintain signal peak
• low detector mass

• Must avoid intense prompt beam flash

• Should suppress false trigger rates: e.g.:

• integrated proton absorber (largest source of background from muon captures)
• trigger should incorporate electron PID