Contents

• Contents
• Parameter
• Beam Delivery (switch/matching) System
  • Two IPs for $\gamma \gamma$, $\gamma e^-$ collisions
  • Two IPs for a concurrent e⁺ e^- collision
• Collimation
  • collimation depth
  • material
  • wakefield
  • muon background
• Final Focus
  • Common optics for 0.3 - 1.5 TeV
  • Tuning/Feedback method
• IR
  • Horizontal Crossing Angle: Crab cavity?
  • Final focus Quadrupole Magnet
    • configuration
    • support system
  • Superconducting compensation magnet
  • Detector Solenoid
  • Revised optics for larger clearance of SR
  • Diagnostics?
  • Vacuum chamber
• Detector and Background
  • Energy Range, 0.25 - 1 - 1.5 TeV?
  • Background
    • synchrotron radiation
    • muon
    • e⁺e^- pairs
    • neutrons
    • minijets
  • Active mask and veto calorimeter inside the mask
  • Compact Detector as proposed for NLC
• Luminosity Measurement
  • as a function of center-of-mass energy
  • beam size measurement by $e^\pm$ pairs
• Beam Extraction and Dump
  • recycle?
  • measurement of beam polarization
  • measurement of beam energy
• Instrumentation
  • magnet
  • BPM
  • BSM
  • mover
  • control
  • machine protection
• References