1. ATLAS Plenary, Feb. 18th, 05Commissioning1 Report on the commissioning activities G. Mornacchi, P. Perrodo and Sub-Systems Collaborators

2. ATLAS Plenary, Feb. 18th, 05 Commissioning 2 ATLAS components breakdown Inner Detector LARG TILES MUONS DCS

3. ATLAS Plenary, Feb. 18th, 05 Commissioning 3 View on the ATLAS work packages DAQ TILES LARG MUONS Cooling/ Ventilation WPs

4. ATLAS Plenary, Feb. 18th, 05 Commissioning 4 Concrete example: Tiles calorimeter WP1: Detector and Modules FE electronics at IP Cooling, Sniffers WP2: Cables WP4: FE Electronics on the truck WP7: BE electronics TTC DAQ DB FE-BE integration WP6: Cosmics L1 receivers Offline BE LV system WP9: HV system WP8: Cesium system WP9: Laser system WP11: TILES DCS Racks, DCS Interlocks Racks L1 receivers Laser calibration WP5: FE LVPS insertion WP3: Rack equipment Racks, DCS WP12: min Biais events Updated on 27/01/05 Active WPs

5. ATLAS Plenary, Feb. 18th, 05 Commissioning 5 Process Overview WP SIgn off WP Execution WP Elaboration Detail schedule and resources Well ahead of execution WP detailed System document Start end times Tests & expected results Work Package Break down System Analysis Break down in components Documents stored in EDMS Under ATC/commissioning/phase I/ Requirements WP Schedule -> ATLAS schedule WP excel sheet, PPSPS document (safety) Agree on WP outcome -> input to sign off Document results Preserve operational information We are ~ here

6. ATLAS Plenary, Feb. 18th, 05 Commissioning 6 Phase 1WP: next 3 months Sub-systemWPDescriptionStart date Inner DetectorCables PP3->US(A) PP2 in sector 13 ~ installation WP Pipework on cryostat ~ installation WP Lar calorimeterF/E on truck Install and commission F/E electronics with detector in “truck position” Active Racks USA15 lAr rack infrastructure in USA15 Tile calorimeterF/E on the truck Install and commission F/E electronics with detector in “truck position”. Temporary cables, mobydick, MobyDAQ March Racks USA15 Install and commission the infrastructure of the USA15 Tile racks March Cesium source Install and commission the Tile Cs source. Piping will be a subject for an intermediate sign off Active Muons systemSector 12-14 Installation of MDT and RPC chambers. No real commissioning yet. Active Sector 13 Installation and commissioning of sector 13 muon chambers. Validates the full commissioning cycle. May Alignment system Install and commission alignment system. Several sub-steps, intermediate sign offs. WP document almost ready for work package analysis. March

7. ATLAS Plenary, Feb. 18th, 05 Commissioning 7 Phase 1WP: next 3 months Sub-systemWPDescriptionStart in DCSLocal DCS USA15 L1 Install and commission local DCS station in USA15. Includes first test with a sub-set of racks in the Tiles area. March DSS USA15 Level-1 Commission DSS system in USA15 level-1, stand alone mode. March DAQDAQ infrastructure Install and commission hardware (e.g. servers) and software (e.g. online s/w suite) infrastructure. March ROD Crate DAQ Commission RCD software. Multi-step process including one commissioning step per ROD type. Planning MagnetsMCS/MSS Install and commission Magnet Safety and control system. Multiple steps; first is related to equipment in USA15. March AllCables UX15---US(A)15 Test and commission cables upon installation. Involves all sub-systems. With cables

8. ATLAS Plenary, Feb. 18th, 05 Commissioning 8 Sign Off A number of infrastructure sub-systems have already been commissioned or are in the process of being so:  C&V  Cryogenics plant on surface  Cryogenics in USA15, Magnet equipment  Cranes For these we envisage a sign off procedure only  To collect the performance parameters  To understand open issues and problems  To integrate them in a uniform documentation scheme, easy to trace back

9. ATLAS Plenary, Feb. 18th, 05 Commissioning 9 Sign Off A formal procedure to make sure that:  Installation (if any) has been properly done: e.g. w.r.t. TC procedures (Install. DB, etc…)  Proper grounding & safety issues have been taken into account  Documentation is available: Technical and maintenance documentation for H/W and S/W User guides, operational procedures, including the test procedures  Planning for maintenance and responsibilities are defined  Performance is according to specifications Or we understand where, how, possibly why, there is a disagreement  We know what are the open problems and issues And what actions can be defined  It is clear who is authorized to use the system once commissioned: Sensitive items: ID cooling, LARG high voltage, TILES Cesium system,… The sign-off procedure may occur in several steps:  For a complex WP one may envisage intermediate milestones, hence sign offs  Associated to a repetitive aspect: E.g. ROD crates, FE electronics, muon chambers.

10. ATLAS Plenary, Feb. 18th, 05 Commissioning 10 Work packages tree: In the Work packages document: WP outcome: (Agreed before WP activation) Execution of the WP Follow-up during the Commissioning meetings Final sign-off procedure Installation report  Inventory, grounding, safety, … Performance specifications  Expected functionality  Quantitative performance figures Test report  Checklist of tests and results Operational documents  Indicates who is responsible, who to contact for problems  Maintenance procedures/plan  Pointers to relevant documentation Operational procedures Test procedures Component manuals  List of open issues/problems EDMS Archive documents Sign Off

11. ATLAS Plenary, Feb. 18th, 05 Commissioning 11 Weekly meetings at Point 1 Minutes can be found at:  Experimental Area Management (EAM): http://atlas.web.cern.ch/Atlas/TCOORD/Activities/Logistics/G1/EAM_minutes_index.html http://atlas.web.cern.ch/Atlas/TCOORD/Activities/  Counting Rooms Management (CRM): ATC-C-IM-0001  Inner Detector: ATC-GE-MM-0132  Calorimeters: ATC-GE-MM-0125  Muons: ATC-GE-MM-0126 Make use of sub-system installation meetings to follow phase 1 sub-system specific commissioning  Phase 1 has too many WPs to concentrate their follow up in a single weekly meeting  Avoid proliferation of meetings  Assume that emphasis will shift from installation to commissioning Weekly meeting  The same morning as the follow-up of the management meetings for UX15 (EAM) & counting rooms (CRM)  Use for topical discussion, sign off, follow sub-systems w/o an installation meeting (e.g. DSS, DCS, DAQ, trigger)

12. ATLAS Plenary, Feb. 18th, 05 Commissioning 12 Monthly meetings Start discussion of phase 2 commissioning - > monthly meeting Overall status and issues to be escalated: TMB, EB

13. ATLAS Plenary, Feb. 18th, 05 Commissioning 13 Potential difficulties Elaborating the commissioning work to be done needs time and some distance with the daily work on site. Collaborators involved in commissioning in the sub- systems are too often overloaded by many other things (e.g. production/installation tasks). More effort needed to prepare the “functional work packages” following installation. The new installation planning is very tight (no float anymore). This can jeopardize the tests and the commissioning. Determine priorities in the tests. Test programs, software and analysis tools ready in advance is an important asset. Centralized management of the computers and network at point 1 is mandatory to avoid confusion. Need of a centralized support for the counting rooms.

14. ATLAS Plenary, Feb. 18th, 05 Commissioning 14 Phase II commissioning Define a reasonable “end of Phase I” for the sub-systems. We won’t go sequentially Phase 1-> Phase 2. System integration:  Partitioning the ATLAS detector: Trigger (CTP,LTP), DAQ (RCD), DCS, DB  Integration Sub-detectors + DAQ + DB + Offline data  Integration Sub-detectors + central DCS + DBs  Operations L1calo + LARG + TILES (Workshop Feb.. 1 st 2005, next in April) Functional tests:  Noise tests and Calibration Pulse tests on large scales involving sub-detectors and L1. Involves ROD crate DAQ.  Partial cosmic runs : Tiles + Muon Barrel sector 13 (+ alignment) + LARG (later). Involves ROD crate DAQ.  Toroid tests (after completion) + Sub-systems  Infrastructure (cooling, ventilation) + sub-systems (detectors, electronics, TDAQ, DCS)

15. ATLAS Plenary, Feb. 18th, 05 Commissioning 15 Phase II commissioning More local combinations:  LARG + cryogenics  Magnets + cryogenics  ID + gas system  Muons + gas system Work organization:  Many ideas are around and we already feel the pressure to take cosmics asap. Need a clear formulation (WP) to decide the priorities and build a planning.  Working groups being organized : “L1”, “DAQ” or “DCS” oriented Detector performances and physics coordinators: calibration data, cosmics Elaborate WPs. Monthly meetings to discuss and plan them. Role of commissioning coordination  Need a place to operate the detector being commissioned (proto Control Room). can be considered not as Phase II, but as A natural extension of Phase I

16. ATLAS Plenary, Feb. 18th, 05 Commissioning 16 Conclusion Continue to initiate the mechanics of WPs with the various ATLAS systems. Milestone of June, before the barrel calorimeters move to IP. The success of a well commissioned ATLAS system is the result of the sum of many detailed tasks.They have to be well thought and prepared to be meaningful for the future.This required more collaborators involved in these aspects. The acknowledgment of this work is of importance. Centralized management of the computers and network at point 1 will become soon mandatory to avoid confusion. Need of a centralized support for the counting rooms. Start thinking seriously soon to a proto control room.