COMPASS RICH-1, MATERIAL FOR TRANSPARENCES

• transparences for experiment status report at SPSC, 27/04/04

• transparences for experiment status report at SPSC, 21/05/02 (draft, final release on 16/5/02)

FIRST RINGS !!!

ANALYSIS STATUS, FEBRUARY 2002

• comments to the figure set
• global imagine of the photocathodes
• momentum spectrum, number of photons
• examples of rings
• Cherenkov angle distributions
• Monte Carlo spectra for comparison
• reconstructed refractive index
• comparison with scrambled events

UPDATED DOCUMENTATION, APRIL 2001

• new set of transparences, April 2001, updated on May 17 14 pages,(now page 4 completed; a second page about mirror installation in 2001 added; one more page about cleaning; one more page about photon detectors); this set includes:
  • design parameters and general description (pages 1,2)
  • mirrors and mirror supports, status and results (page 3,4)
  • vessel and leakage tests, status and results (page 5)
  • quartz windows, status and results (page 6)
  • radiator gas, status and results (pages 7,8,9)
  • photon detector, work and status (pages 10,11,12)
  • read-out, general information and some pictures (pages 13,14)

  STATUS

  • RICH1 status updated at ~ 23/5/00 (1 page)

  RICH-1, GENERAL

  • RICH1, principle and basic elements (1 page, 2 figures and some written information)
  • RICH1, principle and photon detectors basic elements (1 page, 4 figures)

  PHOTON DETECTORS

  • detector principle (1 page, 1 figure)
  • COMPASS photon detectors (1 page with 1 figure and written information)
  • QE (RD26 learning curve + COMPASS measurements (1 page: 1 plot)

  MIRROR WALL

  • complete mirror wall, artistic view (1 page)

  GAS SYSTEM

  • radiator gas system, scheme (1 page)
  • C4F10 pre-cleaning system, scheme (1 page)

  PICTURES: VESSEL

  • RICH1 vessel, delivered and installed in the exp. hall

  PICTURES: MIRRORS

  • half of the mirror wall, still fixed onto the assembly structure(1 page)
  • mirror wall mechanics, detail 1(1 page)
  • mirror wall mechanics, detail 2(1 page)
  • mirror wall mechanics, completed(1 page)

  PICTURES: PHOTON DETECTORS

  • anode wire planes, system for alignment and welding
  • anode wire planes, system for alignment and welding, detail
  • anode wire planes, wire support (MACOR bar)
  • anode wire planes, detail of the welding pins
  • CsI-MWPC, wire planes, detail
  • CsI-MWPC, pad cathode plane
  • CsI pad cathode plane, ready for coating
  • CsI pad cathode plane, installation in vacuum chamber for CsI coating
  • transportation system for CsI cathode planes
  • storaging of pad cathode planes with CsI layer
  • quartz plates, transparency measurements
  • quartz plates, cleaning before gluing

  BACKWALL WITH MIRROR MECHANICS MOUNTED ONTO THE VESSEL

  • backwall rised(1 page)
  • detail of the extra weight to equilibrated the backwall(1 page)
  • backwall in place(1 page)

  RICH RESULTS - JUNE-SEPTEMBER 2000

  • C4F10 pre-cleaning set-up(1 page)
  • results of the C4F10 pre-cleaning(1 page)
  • vessel tightness(1 page)
  • The glove box used for handling the CsI photocathodes(1 page)
  • Photon detectors being mounted onto the vessel(1 page)
  • Mirror support pieces mounted onto the mirror wall (mirrors not yet in place)(1 page)
  • Mirror unpacking and mounting of the support piece (1 page)
  • The first mirrors in place(1 page)
  • The first 10 mirrors in place(1 page)
  • Beam pipe to screen the photons produced by the beam particles (1 page)
  • gas system of the photon detectors (1 page)
  • gas system of the RICH radiator (1 page)
  • the old r-o installed onto the photon detectors (1 page)
  • the first BORA installed onto the photon detectors (1 page)

  LIGHT GAS PIPE - 2001

  • FEM calculations, example 1 (1 page)
  • FEM calculations, example 2 (1 page)
  • picture 1(1 page)
  • picture 2(1 page)
  • picture 3(1 page)
  • picture 4(1 page)
  • picture 5(1 page)
  • picture 6(1 page)