LHCb 27 December 2006 LHCb Status Report A
LHCb 27 December 2006 LHCb Status Report (A. Vorobyov) 1
LHCb 27 December 2006 LHCb Status Report (A. Vorobyov) 2
MWPC production at PNPI M 3 R 4 M 2 R 4 M 4 R 4 Production plans 200 200 Produced by Dec. 2006 200 200 Passed all tests at PNPI Delivered to CERN Production at PNPI-1 Production at PNPI-2 197 200 130* All classified as Class A except 3 bad M 3 R 4 produced in the beginning of production is finished. *)The last transport to CERN is arriving November 28, 2006 with 70 M 4 R 4. 27 December 2006 LHCb Status Report (A. Vorobyov) 3
MWPC preparations at CERN Preparation Phase 1 1 Gas leak tests 2 HV test - 1 3 Pad capacity tests 4 Preparations for chamber dressing 5 HV test – 2 6 Mounting Faraday Cages 7 Dressing with HV and LV lines Dark currents at HV up to 2. 9 k. V Dark currents at HV up to 2. 85 k. V Preparation Phase 2 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 k. V - Cosmic ray tests 27 December 2006 LHCb Status Report (A. Vorobyov) 4
27 December 2006 LHCb Status Report (A. Vorobyov) 5
n MWPC preparations at CERN 27 December 2006 LHCb Status Report (A. Vorobyov) 6
Preparation Phase 2 Pre-installation Test Stand 5 chambers can be tested simultaneously with the rate of 5 chambers per day 27 December 2006 LHCb Status Report (A. Vorobyov) 7
27 December 2006 LHCb Status Report (A. Vorobyov) 8
Cosmic Ray Counts from Internal Counters. Thresh = 15 f. C. Gap. A in 5 chambers. Chambers M 4 R 4 # 53, 54, 55, 56, 57 Run 198 2550_0_0_0 100 sec 27 December 2006 LHCb Status Report (A. Vorobyov) 9
27 December 2006 LHCb Status Report (A. Vorobyov) 10
Construction Status LHCb Spectrometer OT Muon System Magnet RICH 1 VELO TT 27 December 2006 RICH 2 LHCb Status Report (A. Vorobyov) Calo. System 11
RICH-2 IP 8 now. . . IP 8 SPD Now OT Mu-system PS 27 December 2006 LHCb Status Report (A. Vorobyov) 12
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Muon wall preparation 27 December 2006 LHCb Status Report (A. Vorobyov) 15
Further planning n n 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 27 December 2006 LHCb Status Report (A. Vorobyov) 16
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