JLC CDC The total numbers of wire : 11500 The total wire tension : 50 t Material : outer cylinder...

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Transcript of JLC CDC The total numbers of wire : 11500 The total wire tension : 50 t Material : outer cylinder...

  • JLC CDCThe total numbers of wire : 11500The total wire tension : 50 tMaterial : outer cylinder --- 5 mm thick CFRP end-plates --- 25 mm thick aluminum

  • TESLA TPCMaterial distributions ofTESLA tracking systemFunction of the radius at polar angle = 90(b) Function of for the different detectorsTPCMechanical parameters

  • TESLA TPCDesign of end plate for GEMs or Micromegas --- inside: GEM or Micromegas modules --- outside: readout electronics (analog and digital) 0.6 million pads /side!

  • ALICE TPCALICE --- A Large Ion Collider Experiment at the CERN LHCMaterial:Outer vessel(r = 5.6m L = 5.5m) --- carbon-fibre composite and Aramid fibre honeycomb (NOMEX)End flanges --- corbon-fibre composite

    Inner radius: 0.88 mOuter radius: 2.50 mLength: 5m

  • ALICE TPCMain problem!

  • STARTPCSTAR --- The Solenoidal tracker at RHICR = 4m, L = 4.2mDrift Gas : P10Pressure: atmospheric+ 2 mbarReadout: MWPC with pad (136608 pads) End plate: aluminum

  • STAR TPCMaterial thickness for the inner(IFC) and outer(OFC) electrostatic filed cages