1. DCal-ALICE integration and installation plan and status A. Tauro

2. ALICE EMCal / DCal Meeting - 8.11.10 DCal-ALICE integration and installation plan and status 2 Outline Status of integration of DCal services –DCal cabling and patch panels –DCal cooling pipes Modification of access inside L3 Modification of ventilation inside L3

3. ALICE EMCal / DCal Meeting - 8.11.10 DCal-ALICE integration and installation plan and status 3 Integration of DCal inside ALICE Several integration items: Services –Cabling, cooling, … (incl. cooling plant modification) Infrastructure –L3 ventilation Access –Access to L3 (including emergency evacuation) –Access to PHOS and TOF electronics Integration with PHOS –Modification of PHOS services –Installation of PHOS modules Installation –New rails –How to install DCal without disrupting ALICE? Integration with future detectors –VHMPID, PHOS#1, CPV

4. ALICE EMCal / DCal Meeting - 8.11.10 DCal-ALICE integration and installation plan and status 4 DCal cabling and patch panels LV and sense cables routed from the cradle up to rack A-13 HV cables routed up to CR4 All patch panels (LV1-LV2,…) installed on cradle Because of the new cradle we had to re-design the routing of the PHOS cables and cooling services

5. ALICE EMCal / DCal Meeting - 8.11.10 DCal-ALICE integration and installation plan and status 5 LV cabling up to rack A-13

6. ALICE EMCal / DCal Meeting - 8.11.10 DCal-ALICE integration and installation plan and status 6

7. ALICE EMCal / DCal Meeting - 8.11.10 DCal-ALICE integration and installation plan and status 7

8. ALICE EMCal / DCal Meeting - 8.11.10 DCal-ALICE integration and installation plan and status 8

9. ALICE EMCal / DCal Meeting - 8.11.10 DCal-ALICE integration and installation plan and status 9

10. ALICE EMCal / DCal Meeting - 8.11.10 DCal-ALICE integration and installation plan and status 10 Cable length and section

11. ALICE EMCal / DCal Meeting - 8.11.10 DCal-ALICE integration and installation plan and status 11 Cooling Water plant: EMCal plant must be modified with addition DCal loop

12. ALICE EMCal / DCal Meeting - 8.11.10 DCal-ALICE integration and installation plan and status 12 Access Complete re-design A-side ladder –Modification existing services (TOF-TRD cooling pipes) needed Displacement of C-side ladder Leave free passage below cradle (I-side) –Rescue injured people PHOS access –Access below PHOS modules (electronics) preserved

13. ALICE EMCal / DCal Meeting - 8.11.10 DCal-ALICE integration and installation plan and status 13 Access A-side ladder C-side ladder Safety passage

14. ALICE EMCal / DCal Meeting - 8.11.10 DCal-ALICE integration and installation plan and status 14 L3 ventilation Impossible to leave existing air manifold –Is in the way of the new cradle Different alternatives studied –Access to C-side compromised Final solution: DCal rails used as air manifold –Set of 10cm holes along central axis of rails

15. ALICE EMCal / DCal Meeting - 8.11.10 DCal-ALICE integration and installation plan and status 15 L3 ventilation 1m 10.2m 1m Top view (2 nd beam symmetrical) CFD study to predict air speed and flow distribution

16. ALICE EMCal / DCal Meeting - 8.11.10 DCal-ALICE integration and installation plan and status 16 Distance DCal-PHOS DCal-PHOS = 170mm, fixed to accommodate PHOS cooling services

17. ALICE EMCal / DCal Meeting - 8.11.10 DCal-ALICE integration and installation plan and status 17 To be studied Seismic simulation on complete structure Procedure to extract and reinstall rails Drawings rotator and insertion rails

18. ALICE EMCal / DCal Meeting - 8.11.10 DCal-ALICE integration and installation plan and status 18 Timeline Installation target: 2012 We need to have all structures (cradle, rails) at CERN ~6months before shutdown, e.g. summer 2011 Checks at P2 before installation: –Full assembly of rails + cradles in surface –Services installation on cradle, pp fixation,...