1. The Greek Muon Chambers (BIS) The three Greek Laboratories: 112 (90 BIS30 +22 BIS36 ) chambers University of Athens (UoA) Tube wiring/assembly (30,000 tubes finished Dec.2003) National Technical University of Athens(NTUA) Quality Assurance/Quality Control of tubes (30,000 tubes finished Mar.2004) University of Thessaloniki (AUTh ) C hamber assembly (112 chambers finished one week ago)

2. The Greek ATLAS Muon Collaborating institutes UoA C. Kourkoumelis P. Ioannou D. Fassouliotis I. Hatziantonaki K. Nikolopoulos D. Pappas D. Agriogiannis NTUA M. Dris A. Filippas E. Gazis T. Alexopoulos E. Katsoufis T. Papadopoulou E. Fokitis Y. Tsipolitis S. Maltezos A. Tzamarioudaki P. Savva AUTh Ch. Petridou T. Liolios M. Manolopoulou S. Dedousis M. Chardalas D. Sampsonidis T. Lagouri K. Ypsilantis A. Krepouri C. Lamboudis K. Economou K. Filippousis

3. 800 tubes/month Tube and chamber production 4 years of continuous production: 30000 tubes assembled

4. Tube QA/QC results CategoryNumber of tubesPercentage (%) Total28700100.00 Good2845599.15 Crimping250.08 Wire broken110.04 Length finished100.04 Leak current130.04 Gas leak1080.38 Wire location200.07 Wire tension580.20

5. …providing the services the procedure  Preparation activities home Preparation activities home  Stage 1 (including gas leak) Stage 1 (including gas leak)  Stage 2 (after gas leak) Stage 2 (after gas leak)  Electronic Noise test Electronic Noise test  Cosmic Ray test Cosmic Ray test  Database Database All Chambers should be fully equipped and qualified by the end of February 2005 78 Chambers at CERN 34 at Thessaloniki

6. …providing the services

7. …providing the services Preparatory Activities at the institutes Prepare Gas Bars (4/chamber, 120 tubes/Bar, 3 O-rings/tube) Test Gas Bars  Prepare Piping for Gas Bar connection Prepare Piping for Gas Bar connection Prepare B Field sensor cables Prepare Alignment cables  Prepare Temperature cables Prepare Temperature cables  Order Read-Out cables Order Read-Out cables  Label all cables Label all cables Almost finished at least 50 workmonths

8. …providing the services Stage I (2 ch/week) Ground Plates, ground pins, O-rings on tubes Ground Plates, ground pins, O-rings on tubes Install prepared/tested gas bars, signal caps with O-rings Install prepared/tested gas bars, signal caps with O-rings Install gas piping (provisional)for gas supply (Ar-CO 2 3 Atm) Install gas piping (provisional)for gas supply (Ar-CO 2 3 Atm) Install the Hedgehog cards (RO after cleaning-HV) MECCA tests Fix remaining parts of Faraday cage - close FC Check for gas leaks with sniffer Put chamber in thermal insulating area Perform gas leak test (3 d/ch, soon 3ch at once)  Seal the chamber

11. …providing the services Stage I (2 ch/week) Blg 184 + ( Thessaloniki last week) Started end of February with 10 chambers Two months after: Set-up finished System debugged 7 chambers finished (gas test OK – FC closed*) 2 will get back from Tomo for gas test 1 failed gas test –put aside * we are missing RO hedgehogs

12. …providing the services Stage II-Blg 283 (ALL CHAMBERS)  Glue T sensors Glue T sensors Glue B Field platforms/sensors/cables Glue B Field platforms/sensors/cables Glue alignment platforms/cables Glue alignment platforms/cables Install mezzanines+covers on Faraday cages Install mezzanines+covers on Faraday cages Install RO cabling Install RO cabling Noise test Cosmic Ray Test

13. CONCLUSIONS …providing the services Stage I- Blg 184 + ( Thessaloniki last week) Both sites started at CERN well on the way, according to schedule soon to double technician team Stage II-Blg 283 (ALL CHAMBERS) to start in June