1. LHCb Upgrade Optical Fibers from Cavern to the Surface - what has been done ? - prototypes status and next coming steps - what is missing for final installation 10 th October 2014

2. 2 - LS2 planning tight / many activities in UX foreseen - want links ready to do the commissioning of first electronics as soon as possible Goal ( already decided end of 2012): ~ 15 000 fibers UX85 to Surface ready for beginning of LS2 2013 Study passages through the 2 pits available  PM85 pit chosen Disadvantages Pass thought an LHC side (US85, PM85): - agreement of LHC (space taken, integration in 3D mockup…)  documentation provided (ECR), LMC approval. - passage above Cryo equipment during installation  additional precautions to take - dependent on machine activities  access given by them / LHC planning Advantages in a ‘technical area’ (no need special derogation/safety exit) no passage through the LHCb shielding wall (difficult before LS2) no space take in the existing ‘LHCb’ cable trays (probably happy to have for LS2) Laurent Roy

3. 3 shaft PZ85 shaft New LHCb Control Room End point: New server Rooms PM85 shaft PX85 shaft Start point: ~3 areas in UX85 New Power Transformer ? HV cells SG8 passage for the prototypes

4. 4 Two types of installation possible: blowing (+splicing) or pre-connectorized -technical Pros and Cons of each solution could not yet help for the choice -Cost relatively similar: also not help to chose already now -  Installation of prototypes with both possibilities in our environment to give more information Laurent Roy Solution compatible for both types found for the supports:  rails + clamps bundle of 7 trunk cables (for pre-connectorized) 50mm tube (for blowing in 7 mini tubes)

5. 5 Laurent Roy - 600mm standard cable trays installed in UX85-C (Cryo part) Supports installation: has been designed directly for the full quantity

6. 6 Laurent Roy cable trays installed in UX85-C (Cryo part) -Try to minimize the curves but cannot avoid few of them However minimum bending radius (76 cm) respected everywhere

7. 7 Laurent Roy Large scaffoldings mounted -for new cable trays on the wall /US85 -for passages through the ‘siporex’ wall

8. 8 Laurent Roy Scaffolding above Cryo racks New cable tray 2 holes drilled in UX85-US85 wall -for fibers coming from Bunker+Calo+Muon fibers -for Velo side (Velo, UT, Rich1)

9. 9 Laurent Roy New cable tray for Muon+Calo

10. 10 Laurent Roy  closing before LHC powering tests safety / leak of He 2 nd hole new supports in US85

11. 11 Laurent Roy Difficult passage (between large air duct and the wall) ‘en drapeau’ Special support to move ducts away from power cables (with a safe distance of 25 cm requested)

12. 12 Laurent Roy Scaffolding bottom PM85 + Cryo cold box protection

13. 13 Laurent Roy 2 Cryo exhausts moved away (bottom of the pit) limited space allowed by Cryo and LHC integration in PM85

14. 1414 Laurent Roy Special support for ~85m vertical part in the pit rails on each sides mechanical characteristics report provided

15. 15 Laurent Roy Mechanical supports studied to occupy the maximum of space available between 2 ‘cryo transfer lines’  20 tubes ø50mm could be installed x 7 = 140 cables x 144 fibers =20160 fibers is the maximum that should be possible to install

16. 1616 Laurent Roy junction between pit and gallery at the surface Boring ~ 3.5m of concrete + rubble to reduce length: -30m boring: use the max.diameter possible Ø 40 cm ! L: 3.5 m

17. 17 Laurent Roy  studied for ~ 20 tubes ø50mm (20160 fibers maximum) gallery side

18. 18 Laurent Roy Pit side Gallery side very difficult job foreseen for ~1-2 weeks took ~ 1 month !

19. 1919 Laurent Roy New cable trays in the existing gallery (old pictures before install them)

20. 20 Laurent Roy Preparation for the passage below the new building in SX8 Gallery done last week

21. 21 Laurent Roy Window for Optical fibers To pass through the underground level to go to a new ‘parking’ gallery Existing ‘caniveau’ where prototype installed to the SG8

22. 2222 Laurent Roy  90% of “mechanical supports” already installed for the full quantity In UX85 Velo-RICH1 region:  a small platform will come in ~1 month to be done for 100%: -new gallery (parking) -cable trays installation (new building+parking) -Calo C side cable tray -Velo side: detail integration for cable tray & installation

23. 23 blowing prototype status: -Tube ø 50mm + 7 microtubes ø12mm  installed -Blowing pre-test done with a cheaper cable  successful, allowed optimize machine adjustments (05 Sept 2014) -Blowing + splicing cable prototype  done (29 Sept 2014) Laurent Roy In PM85 pit

24. 24 Laurent Roy lot of people needed to pull the tube 2 full days: 8 people length 500m

25. 25 Laurent Roy End point of the prototype:SG8 Passage between gallery and the pit

26. 26 blowing machine (test cable)  Test the maximum speed possible without damaging the cable (in case it blocks). Laurent Roy Pressure adjustment for the rollers speed Pressure adjustment for the air blown in the tube

27. 27 blowing machine (prototype cable) -film Laurent Roy speed beginning:~ 60 m/min end: ~ 20 m/min Total ~10 min for the 350m (but preparation takes more time)

28. 28 Splicing preparation Laurent Roy Inside the cable 6 ‘mini cables’ x24 fibers (=24 colors) Splicing cassette finished 12 LC (will be 1 MPO in the future) 1,5 days 2 people to do the 144 splicings + measurements 15 000 fibers could take 156 day (2 people)  more than half a year !!

29. 29 Laurent Roy Splicing machine 2 electrical electrodes -film

30. 30 Laurent Roy  144 fibers Ready for tests with electronics boards ! Front (in SG8) Back Start point underground in the M1 bunker rack

31. 31 preconnectorized prototype status: -Draka and Fibernet (cheaper) trunk cables each 144 fibers received  should be installed when access possible: CV maintenance (week 48-49-50) Laurent Roy End of November LHC planning

32. 32 Laurent Roy Quantities need for LHCb Upgrade (last estimate from Ken): Final quantity per sub-detector ? Space for patch panels to foresee -> which location ?

33. 3333 Is it the right configuration for your sub-detector ? (patch panel, type of patch cord…) What will be the different lengths ? Laurent Roy  Complete link between the electronic and the patch panels downstairs

34. 34  Complete link between the DAQ and the patch panels upstairs Laurent Roy Which DAQ PCIe40 quantity per sub detector ? Which detector will do a load balancing ?

35. 35 Conclusion: -supports ready for ~ 90 % of the total length (10 % missing to install during Technical Stops) -Yes it is possible to blow cables in our configuration from down to top -blowing prototype 144 fibers (UX85-SG8) installed and ready for tests -2 trunk version cables received, will be installed in Nov  2 methods will then be compared in details To progress for the full installation: Need the different lengths of patch cords, quantity of PP on the link, location… - realize ‘worst case’ tests - reserve space (surface & underground) -prepare to order the equipment needed (optical+PCIe40+’online’+…) -make installation planning  information from sub-detectors requested in the next weeks Laurent Roy