1. 27 December 2006 LHCb Status Report (A.Vorobyov) 1 LHCb

2. 27 December 2006 LHCb Status Report (A.Vorobyov) 2 LHCb

3. 27 December 2006 LHCb Status Report (A.Vorobyov) 3 MWPC production at PNPI M3R4M2R4M4R4 Production plans 200 Produced by Dec.2006 200 Passed all tests at PNPI197200 All classified as Class A except 3 bad M3R4 produced in the beginning of production Delivered to CERN 197200130* Production at PNPI-1 is finished. Production at PNPI-2 is finished. *)The last transport to CERN is arriving November 28, 2006 with 70 M4R4.

4. 27 December 2006 LHCb Status Report (A.Vorobyov) 4 MWPC preparations at CERN Preparation Phase 1 1Gas leak tests 2HV test - 1 Dark currents at HV up to 2.9 kV 3Pad capacity tests 4Preparations for chamber dressing 5HV test – 2 Dark currents at HV up to 2.85 kV 6Mounting Faraday Cages 7Dressing with HV and LV lines 1 Installation of FE electronics 2 Pre-installation tests - Thresh. Scan ( Noise counts, Pulse generator counts) - HV test - 3 Dark current up to 2.85 kV - Cosmic ray tests Preparation Phase 2

5. 27 December 2006 LHCb Status Report (A.Vorobyov) 5

6. 27 December 2006 LHCb Status Report (A.Vorobyov) 6 MWPC preparations at CERN

7. 27 December 2006 LHCb Status Report (A.Vorobyov) 7 Preparation Phase 2 Pre-installation Test Stand 5 chambers can be tested simultaneously with the rate of 5 chambers per day

8. 27 December 2006 LHCb Status Report (A.Vorobyov) 8

9. 27 December 2006 LHCb Status Report (A.Vorobyov) 9 Chambers M4R4 # 53, 54, 55, 56, 57 Run198 2550_0_0_0 100 sec Cosmic Ray Counts from Internal Counters. Thresh = 15fC. GapA in 5 chambers.

10. 27 December 2006 LHCb Status Report (A.Vorobyov) 10

11. 27 December 2006 LHCb Status Report (A.Vorobyov) 11 Construction Status LHCb Spectrometer VELO RICH1 TT Magnet OT RICH2 Calo. System Muon System

12. 27 December 2006 LHCb Status Report (A.Vorobyov) 12 IP8 now... IP8 Now Mu-system PS SPD RICH-2 OT

13. 27 December 2006 LHCb Status Report (A.Vorobyov) 13

14. 27 December 2006 LHCb Status Report (A.Vorobyov) 14

15. 27 December 2006 LHCb Status Report (A.Vorobyov) 15 Muon wall preparation

16. 27 December 2006 LHCb Status Report (A.Vorobyov) 16 Further planning In the optimistic planning with the pre-installation tests rate of 5 chambers per day, all 600 chambers could be ready for installation by the end of May,2007 However, there will be still problems with additional conditioning of the chambers,repairs etc that may require some additional time HV-System for 4000 channels