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CR tracker production

CR tracker production. G. Aielli for the RPC collaboration. CR traker news. The design of the carpet under the floor has been almost completed It is inheriting the R&D for a new series of chambers to be installed in ATLAS All materials available for construction

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CR tracker production

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  1. CR tracker production G. Aielli for the RPC collaboration

  2. CR traker news • The design of the carpet under the floor has been almost completed • It is inheriting the R&D for a new series of chambers to be installed in ATLAS • All materials available for construction • Order ready to be placed to the factory • Will be produced in tail to the ATLAS chambers • Still open option about reading from only one of the short sides • Front End electronic boards have been reserved for this chamber and are under test in Roma • The delivery of the chamber should be for the autumn. Need to avoid clash with the Atlas production which is time critical due to the tight installation schedule • AIDA installation schedule, in particular for the floor?

  3. Detailed layout: Bottom Tracker • Trigger and high time resolution: • One chamber 1x0.5 m2 as for the top tracker: strips: 16 + 32 = 48 • Fine tracking: 1 chamber 30x30 cm2 as in the previous point.  # strips: 64 (60 E/channel) • Underground detector • One doublet chambers:  size 2.8 x 2.4 (=2x1.2) m2  (two chambers; bi-dimensional read out) • Longitudinal (eta) strip pitch (mm)37 # total number of eta channels 128 • Transevresal(phi) strip pitch (mm)29 #total number of phi channels 384 Fine tracker Y-Z readout Iron shielding 30 cm 50 cm Concrete 30 cm 100 cm Concrete 240 cm 280 cm

  4. Carpet production parameters book 2800 1200

  5. Chamber design Phi view Eta view

  6. Chamber design

  7. Conclusions • Ready for production of the CR carpet under floor • When is reasonable to transport the detector to CERN? • Can we check the schedule for the installation or in alternative a storage at CERN? • Not before the autumn 2013 • Next steps will concern the ceiling tracker which production is scheduled early 2014

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