1 / 29

L. Pontecorvo

L. Pontecorvo. 4. 6. 3. 7. 2. 8. 1. 9. 16. 10. 11. 15. 14. 12. MDT Status: Installation and Commissioning. 5. Missing 9 stations. Outline. Installation and infrastructure status Commissioning Status Sector Commissioning strategy Integration with other ATLAS sub-detectors

garry
Download Presentation

L. Pontecorvo

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. L. Pontecorvo 4 6 3 7 2 8 1 9 16 10 11 15 14 12 MDT Status: Installation and Commissioning 5 Missing 9 stations

  2. Outline • Installation and infrastructure status • Commissioning Status • Sector Commissioning strategy • Integration with other ATLAS sub-detectors • Results from Toroid run in November

  3. Installation and services

  4. Installation and Positioning • 673/682 installed: missing 6 sideA + 3 side C • After installation on the rails must be positioned • specs:~2mm; 2mrad •  Main limitations: Interference with other sub-systems services and access • Very tricky: BIR/BIM in sectors 11 and 15and BMS all sectors and BOL/BOS external chambers • It goes very fast once we have access + OK from TC • 575/682~84% of the barrel is positioned Feet region Gray: not installed Light green: installed Dark green: installed AND positioned

  5. Cables and Gas • All MDT optical and control cables (~200) from USA15 to barrel PP installed in 2005 - All patch panels installed - All Alignment, - All CANBUS DCS cables - All MDT RO and TTC fibers • All LV and HV cables installed • All DCS daisy chain installed on positioned sectors • > 70 % of Optical patch cords installed Rack dressing for upper sectors well under way

  6. Gas system status • All manifolds and valves installed • 15 UX racks operational • All (~300) pneumatic valves ok; • All barrel racks equipped with zeolite filters • Connection of chambers to manifold following chamber positioning • Systematic leak tests of combined system using PVSS control: • Leaks found in: • BIS S2: two chambers • BIS S8: one chamber Repaired • BIS S10: five chambers • BOL S1: not identified yet • BOLS15 Repaired

  7. Power supply: LV/HV • In 2007 CAEN will deliver: • 80% of RPC and barrel LVL1 PS (HV/LV) • 80% of TGC • 40% of the LV for MDT • 25% of the HV for MDT-CSC • MDT Commissioning issues: • HV/LV boards for sectors 5 & 6 Available • Need more boards for the commissioning of other sectors Followed by A. Lanza

  8. Commissioning

  9. USA15 - DCS and Alignment • TTC Crates ready both for Barrel and End-Cap (E. Pasqualucci) • All ROD-ROB fibers routed (Italian Techs) • CANbus PS and DCS PCs for all Barrel • Full Barrel alignment system • HV-LV DCS-PCs for Barrel (also for RPCs) (P. Valente, G. Aielli) • Sectors 5, 6, 3A & 4A RODS are available and cabled

  10. Commissioning Strategy All stations arrived at ATLAS after cosmic ray certification and retested at SX1 (now dismissed) Due to late availability of services level-by-level strategy adopted in the pit • Level I:fast test of station integrity: gas tightness, broken wires • Level II:check basic functionalities with provisional services: DCS, FE elx. behavior, in some cases also noise runs • Level III:check full functionality and sign-off of complete sectors – done only whenfinal services available  MDT+RPC/LVL1: • Full test up to cosmic ray run • First determination of optimal working point • Dead channels maps, … After Level III Full SECTORS ready to be integrated in ATLAS: commissioning Phase II

  11. MDT test up to Level II • MDT: 216/630 tested • Mainly Inner chamber difficult to access later (BIL and BIS) • Up to now test done using provisional services • Since January moved to final services  sector 5 and 6 DONE with FINAL services • Many problems found and fixed: mainly damaged components: ELMB, CSM, cables, fibers,…

  12. LVL III -Full Sectors commissioning schedule • Constraints • Possibility/Access to position stations • Availability of services + CAEN Power supplies • Strategy: start from top sectors • Schedule • Sector 5 and 6: April/May (Under way) • Sectors: 3–4 7-8 1-2 9-10 13-14-12 11-15-16 • Month: June July Aug Sept Oct. Nov. • PS schedule: October ‘07 ~80% of RPC/LVL1 and only 40% of MDT LV expected: • After sector 5/6 move around “Jolly” set of CAEN boards to commission all other sectors (depending on delivery from CAEN) • Only part of the barrel integrated in ATLAS by fall 2007

  13. Phase II commissioning: Integration in ATLAS • Integration of sector 13 in March combined ATLAS run: • MDT: ROD-ROS readout – HV/LV DCS integrated • RPC/LVL1: VME readout – muon trigger via MUTCPI-CTP • Starting from June integrate sector 5A & 6A (after we have commissioned it): •  Use these sectors as benchmark for phase II to include all final features needed in ATLAS: DCS, DSS, chamber initialization, configuration DB, high level muon trigger, Data analisys • 1 FULL CAEN PS set left on this sector • Other sectors can be added later once are signed off depending on PS availability

  14. MDT HV-LV DCS integration • MDT HV-LV DCS succesfully integrated in Central DCS. • 1 PC, 1 branch controller, 6 boards in 4 crates in UX15 • Controlled from ATLAS Global Control Station • Project almost completed still to be finalized: • Archiving • Configuration database • Condition database • INFN- University of Athens joint project

  15. Results from Sector 13 cosmic ray test with Magnetic Field

  16. BIL BML BOL BOF BOF Sector 13 run: set up Full weekend of data taking with 13 feet chambers during the Barrel Toroid test in November • 13 Muon stations read-out • LVL1 muon Trigger provided by 3 BML RPC/LVL1 and distributed via MUCTPI + CTP to muon system BIL 1 BIL 3 BIL 2 Side A BML 3 h=0 BOL 3 BOF1 BOF3

  17. Sector 13 data • Sector 13 cosmic data used as benchmark to test commissioning procedures for sector sign-off • MDT: • Noise • Dead channels • Drift behavior • Preliminary alignment • RPC/LVL1: • Noise • Efficiency • Working point optimization • LVL1 timing • Automatic tools to perform stations sign-off under preparation

  18. MDT Inefficient tubes from chamber profile dead tubes Silvia Franchino (INFN Pavia)

  19. MDT Noise rates t< t0 per ogni tubo: Offline analysis Typical physical background in barrel ~10kHz GNAM result Online monitoring 1.4% occupancy Silvia Franchino (INFN Pavia) 15 / 12 / 2006

  20. Impact of magnetic field on MDT drift B field expected to change drift-to-radius relationship by Lorentz angle

  21. Installation and Commissioning Coordination • Overall coordination: • F. Cerutti (INFN) & L. Pontecorvo (INFN) • Run coordination: • S. Vlachos (CERN) & D. Boscherini (INFN) • MDT DCS: • P.Valente (INFN) S. Zimmermann (Friburg) • Gas MDT: • T. Meyer (CERN) • RPC DCS : • G. Aielli (INFN) • Gas RPC: • R. De Asmundis (INFN) • DAQ: • E. Pasqualucci (INFN) • Trigger: • S. Veneziano (INFN) • Service Installation: • A. Lanza (INFN)

  22. Conclusions • Installation almost completed • left over only due to interference with other detectors or unavailability of BOG chambers • Services Installation: • Cabling almost finished moving to rack dressing • DCS, Alignment and DAQ systems well under way. • Level III Sector commissioning starting now • Very tight schedule and shortage of final power supply. • Sectors will be available for integration in ATLAS • Toroid test with cosmic rays showed good results

  23. Richieste finanziarie • Nuovo finanziamento per contratti con CAEN (Lettera Referee di A. Lanza): • 55 KEuro per contratto per manutenzione software e aggiornamento firmaware • 12.5 KEuro per Filtri sul sistema di potenza • Costruzioni apparati : Pavia

  24. Back Up-Slides

  25. Alignment Commissioning Systematic check of the 5817 optical lines has started: • Difficulties: mainly conflicts with gas-pipes, cable trays, support structure,… • Main emphasis now on the 117 projective lines (backbone of the Barrel alignment) ~only 20 lines are working today… Clashes with struts found in 28 cases

  26. Cabling II • Inner Layer • Cabling of inner layer is mostly done • 244 LV, 488 HV cables, 244 alignment, 448 pairs of optical patch cords in total • All HV, LV alignment cables installed • DCS daisy chain installed on positioned sectors • Almost all of RO&TTC patch cords installed. • Midlle Layer • 178 LV, 356 HV, 178 alignment cables, 356 pairs of optical patch cords • All LV and HV cables installed • DCS Daisy chain installed on positioned sectors • ~75% of RO&TTC patch cords installed, installation is ongoing

  27. Cabling III • Outer Layer • Cabling of MDT outer layer is mostly done • 202 LV, 404 HV cables, 202 alignment, 404 pairs of optical patch cords in total • All HV, LV and alignment cables installed, few HV cables still to be re-arranged • DCS Daisy chain installed on positioned sectors • ~75% of RO&TTC patch cords installed, installation is ongoing

  28. Leak Test • Systematic leak tests of combined system using PVSS control: • Tested until now: (red = test currently underway) (315 in total) • BIS: S2, S4, S6, S8, S10, S16 • BMS: S2, S4, S6, S8, S10, S16 • BML: S3, S5, S7, S13 • BOL: S1, S3, S5, S7, S9, S11, S15 • BOF/BOG: S14 • Work still to start on : BIL, BIR, BIM, BOS, EIL4 • Leaks found in: • BIS S2: two chambers • BIS S8: one chamber Repaired • BIS S10: five chambers • BOL S1: not identified yet • BOLS15 Repaired • All other leaks (mostly in plumbing) identified and corrected. • Ongoing work: • Connect remaining chambers (~33%) to valves (ongoing - 3 months). • Finish leak tests (synchronous with chamber connection) • Repair work according to damage found.

  29. Muon DAQ Integration • Sector 13A + 2 chambers of sector 5 • 2 crates, 3 MROD • 11 MDT chamber • 2 ROS, 3 s-link • RPC SL board, 1 crate • ROD emulator used • TTC signals sent through ROD prototype • Connected to ROS via Ethernet • Muons + Calorimeters +CTP+MUCTPI partition built • MDT online histogram viewed by OHP • Connection to Data Quality desk

More Related