WLCG-Discu

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WLCG-Discu

  1. 1. Discussion on Geometries FCAL Collaboration Workshop TAU, September 18-19, 2005 Christian Grah
  2. 2. Coordinate systems Coord.-System 2: Geant4 like (Mokka): Coord.-System1: Geant3 like (Brahms):
  3. 3. Positions/Geometries <ul><li>Center Lumi- and BeamCal on outgoing beam. </li></ul><ul><ul><li>LumiCal: ± 3.05cm </li></ul></ul><ul><ul><li>BeamCal: ±3.65cm (z=370 is also used) </li></ul></ul><ul><li>Angular Coverage: </li></ul><ul><ul><li>LumiCal: 8(13) to 28cm 26(43) to 92 mrad </li></ul></ul><ul><ul><li>BeamCal: 1.5(2) to 10(16)cm 4(5) to 28(44) </li></ul></ul><ul><li>Option: misplace BeamCal and keep aperture small...how to prevend dead area? </li></ul>
  4. 4. BeamCal Segmentation 45/60° calo segment (nseg=8/6) using 360-opening angle/nseg for 20 mrad

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