PHENIX TOF '99

• How it looks like?
• What is it designed for?
  • Single Particle Inclusive Measurement
  • Hanbury-Brown-Twiss Correlation
  • Detection of φ mesons in K+K-decay
  • Base Design
    • Single spectra & PID
• How do we get high resolution?
  • Basics
  • Photomultiplier Tube
  • PMT selection
  • Plastic Scintillator
  • Light attenuation & Timing degradation
  • Rod with smaller cross sectional size
  • TOF resolution
  • Aging Effect
    • Effect on timing
    • Optical properties
  • Typical TOF Resolution
  • Expected effect of Cerenkov
    • Pulse height of Scint. & Cerenkov
    • Cerenkov Effect on Timing
    • Fiducial Cut with timing difference.
• How we have done so far?
  • Segmentation in theta or in phi ?
    • Bending angle in phi direction
    • Bending angle in theta direction
  • Panel Structure
  • Honeycomb Board
  • PMT holder
  • Mockup Test
  • Prototype prod. & test
  • Production of 5 panels
    • Mass Production (1)
    • Mass Production (2)
    • Mass Production (3)
    • Installed at CERN-WA98
    • Operation at CERN-WA98
• Readout Electronics
  • Features of TOF-FEE
  • Cross Talk Problem
  • FEE board
  • Charge Measurement as an example
  • HV system