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The Finnish CMS Collaboration

The Finnish CMS Collaboration. Helsinki Institute of Physics S. Czellar, A. Heikkinen, J. Härkönen, V. Karimäki, H. Katajisto,R. Kinnunen,T. Lampén, K. Lassila-Perini, P. Luukka, S. Lehti, T. Lindén, T. Mäenpää, J. Nysten, J. Tuominiemi, E. Tuominen, D. Ungaro, M. Voutilainen,

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The Finnish CMS Collaboration

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  1. The Finnish CMS Collaboration • Helsinki Institute of Physics S. Czellar, A. Heikkinen, J. Härkönen, V. Karimäki, H. Katajisto,R. Kinnunen,T. Lampén, K. Lassila-Perini, P. Luukka, S. Lehti, T. Lindén, T. Mäenpää, J. Nysten, J. Tuominiemi, E. Tuominen, D. Ungaro, M. Voutilainen, L. Wendland • Lappeenranta University of Technology T.Tuuva, T.Palviainen • Helsinki University of Technology P. Aarnio

  2. HIP CMS Programme • CMS SOFTWARE AND PHYSICS PROJECT • CMS TRACKER PROJECT

  3. 1. TheTrackerProject CMS Construction: • Support structure of the Tracker Outer Barrel (TOB) • Quality tests of the TOB Silicon detector modules • RPC muon trigger link R&D: • Development of radiation hard silicon detectors

  4. Tracker Outer Barrel HIP ”Big Wheel” Prototype 2001 Being ordered now

  5. TOB Support Structure • The detector modules are assembled on special supports called rods

  6. Tracker Outer Barrel (TOB): Support Structure • The support rods are being assembled at HIP Kumpula Laboratory. Rod components are purchased from Finnish Industry. • Precision measurements of the rods are done in collaboration with the Laboratory of Machine Design, Helsinki University of Technology (precision 5 mm).

  7. TOB Support Structure • The results of the precision measurements are stored in the CMS data base for alignment. • The rods are sent via CERN to the module building labs, where the modules are installed on the rods • All 5500 modules are to be installed in the wheel by April 2005 .

  8. TOB Silicon Module Tests • Production of the TOB Silicon detector modules has been launched at CERN, Fermilab and Santa Barbara. • About 100 ready from a total of 5510. • Plans for module production at HIP had to be abandonned in 2001 due • to lack of infrastructure and funds • in Finland.

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