1. ALICE Collaboration Meeting Heidelberg Services Update  Progress on services Detector cabling Gas systems Cooling systems  Rack footprint  Primary electrical distribution  Utilities  Principle Priorities For Q4 2003

2. ALICE Collaboration Meeting Heidelberg Progress On Services  Services on RB26 side Must be installed this year, in order to close the doors Complex routing & limited space Temporary supports will be required inside the L3 magnet Layout at time of last ALICE week Basic Bus Bar layout Some cables Some gas & cooling pipes

3. ALICE Collaboration Meeting Heidelberg Detector Cabling (1)  Inventory well advanced  Over 1600 cables to be installed on RB26 side Rack allocation Cable type CERN standard or special Typical inventory for TPC

4. ALICE Collaboration Meeting Heidelberg Detector Cabling (2) InventoryIntegratedOrderedInstalled ITS Pixel Drift Strip 75% 20% Vo60%20% To80%20% FMD20% TPC90%60% TRD90%60% TOF90%60% HMPID90%10% CPV25%5% PHOS5% MUON Tracking Trigger 80% 50% 60%40%

5. ALICE Collaboration Meeting Heidelberg Detector Cabling (3)  High voltage and signal cables Will be installed using the existing EST/LEA industrial support contract Under the direct supervision of the ALICE team Cables will be installed and cut to approximate length Cables will be cut to the exact length and connectors will be added, when the detectors have been put in place  Fiber optic cables ALICE team will install the ducts The specialist team from ST/EL will blow the fibers at a later date

6. ALICE Collaboration Meeting Heidelberg Gas Systems Preliminary design Final designPRRConstructionInstallation TPCCompleted In progress TRDCompleted TOFCompleted HMPIDCompleted In progress CPVCompleted PMDCompleted Muon TrackCompleted In progress Muon TrigCompleted In progress Status 1 st. September 2003

7. ALICE Collaboration Meeting Heidelberg Cooling Systems Status 1 st. September 2003 Preliminary design Final DesignPRRConstructionInstallation ITSCompleted TPCCompleted TRDCompleted TOFCompleted Bus BarsCompleted HMPIDCompleted CPVIn progress PHOSIn progress PMDIn progress MUON Trac.In progress

8. ALICE Collaboration Meeting Heidelberg Layout of Services (1) Start off with a clean sheet

9. ALICE Collaboration Meeting Heidelberg Layout of Services (2) Gas, Cooling & Bus Bars on back frame ITS services Bus Bars Fiber optic cables Cooling & Gas pipes

10. ALICE Collaboration Meeting Heidelberg Layout of Services (3) Cooling & Gas pipes Through doors Bus Bars

11. ALICE Collaboration Meeting Heidelberg Layout of Services (4) Access passage around Back frame

12. ALICE Collaboration Meeting Heidelberg Detector Cabling (5) Installation schedule for cables on RB26 side Between September & December 2003

13. ALICE Collaboration Meeting Heidelberg Rack Footprint (1)  Standard 52U high racks  UX25 cavern 133 racks have been identified Racks allocated to sub- detectors Numbering follows CERN ST/EL standard Grouped into 4 areas (see following slide)  PX24 counting rooms Existing racks will be used Allocated as required UX25PX24 ITS12 TPC9 TRD12 TOF13 HMPID3 PHOS/CPV3 PMD2 MUON Trac.12 MUON Trig.14 CTP9 Small detectors10 Misc.7 DAQ (P1)38 HLT (P2)0 DCS (P3)20 Detectors (P4)39 Total10697 Reserve270 Grand Total13397

14. ALICE Collaboration Meeting Heidelberg Rack Footprint (2) Inside machine Outside machine Big block houseSmall block house

15. ALICE Collaboration Meeting Heidelberg Rack Footprint (3)  Crate allocation (UX25) Well advanced ~60 out of 132 racks have detailed crate layout

16. ALICE Collaboration Meeting Heidelberg Primary Electrical Distribution  Now well understood  Power for counting rooms supplied from surface transformer  Power to Experimental Area One transformer will supply power to racks A separate transformer will supply power to equipment with pumps etc.

17. ALICE Collaboration Meeting Heidelberg Primary Electrical Distribution EBD2/29 EBD3/29 EXD1/25 EQD1/25 EBD1/25 EBD3/25 EBD4/25 EXD1/2XEBD1/2X EBD5/2XEBD3/2X EBD1/20 BOUCHON Niv.4 Niv.1 Niv.2 Niv.3 1,25MVA Transformer 1,25MVA 2MVA Transformer Eclairage,clim PX24 S.G. SX2 et PX24 ST-CV 700KVA Rech. Cryo Free Alim S.G. UX25 Pont roulant Force 125A-63A,…. Alim S.G. UX25 Eclairage,petite force Auxiliaires,……. EXD-/20

18. ALICE Collaboration Meeting Heidelberg TPC Lasers New shielding layout gives better access to TPC lasers

19. ALICE Collaboration Meeting Heidelberg Vo Cable Length Cable length 25m

20. ALICE Collaboration Meeting Heidelberg Utilities Installed at Point 2IR1 estimatesIR2 estimates Electrical power supply3,25MVA2,62MVA Mixed water supply Chilled water supply 172m3/h 72m3/h 161m3/h 66,5m3/h 155m3/h 66m3/h Cavern ventilation150kW134kW129kW  Mixed water supply Rack filling factor of 100% Cooling efficiency 90% Number of racks reduced From 140 to 133  Cavern ventilation 4% reduction

21. ALICE Collaboration Meeting Heidelberg Priorities For Last Quarter of 2003  Side structures For racks To allow Bus Bar & cable installation  Services through RB26 doors Bus Bars Cables Gas pipes Cooling pipes Modified side structures (UX25) Detector To counting room (P4) Cable installation Rack positions