1. Philip Burrows SiD Monthly Phone Meeting, 4/10/071 IR Issues from IRENG07 Philip Burrows John Adams Institute Oxford University

2. Philip Burrows SiD Monthly Phone Meeting, 4/10/072 SiD-specific talks at IRENG07 SiD concept overview (Kurt Krempetz) Mechanical model (Bob Wands) Beampipe and inner detector maintenance (Bill Cooper) Endcap / door design concepts (Jim Krebs) Preliminary assembly schemes (Marty Breidenbach) Beamcal / Gamcal (Bill Morse) … http://www-conf.slac.stanford.edu/ireng07/agenda.htm

3. Started with RDR design Two Large shafts direction above U-Hall Strong interference in Logistics and Safety between Shafts and Detector Areas RDR design has been put aside looking for better solutions Difficult to position lifts and stairs Safety problems during ALL handling operations

4. Philip Burrows SiD Monthly Phone Meeting, 4/10/074 Two shafts with lift/stairs services 80-t crane access from surface 9m shaft for machine service Two Large Shafts outside the Footprint

5. Philip Burrows SiD Monthly Phone Meeting, 4/10/075 Two Large Shafts - With experiments Two asymmetric 40-ton cranes can be ganged to move around 80-ton pieces Room for shielding wall if needed 40-t

6. Philip Burrows SiD Monthly Phone Meeting, 4/10/076 Utilities at both ends of Hall Small service caverns for cooling and ventilation skids, transformers.. See Andrea Gaddi’s talk at 16:50 today

7. Two Large Shafts - Phase I Civil Engineering Turf

8. Philip Burrows SiD Monthly Phone Meeting, 4/10/078 2001 CMS – Surface buildings

9. Two Large Shafts - Phase II

10. Philip Burrows SiD Monthly Phone Meeting, 4/10/0710

11. Philip Burrows SiD Monthly Phone Meeting, 4/10/0711

12. Elements could be lowered at an angle and rotated in the Transfer Tunnel

13. Philip Burrows SiD Monthly Phone Meeting, 4/10/0713 For two experiments, it is too crowded Civil Engineering turf during phase I

14. Philip Burrows SiD Monthly Phone Meeting, 4/10/0714 One Large Shaft - General view. Main service cavern machine & Exp B Second service cavern Exp A A B Main 18 m shaft Secondary9 m shaft

15. Philip Burrows SiD Monthly Phone Meeting, 4/10/0715 Movements of Experiment A Exp B 1 2 3 1: to main unloading zone 2: to garage position and leave space for experiment B in unloading zone 3: beam/garage position A This side of the cavern has to be longer by at least 10 m

16. Philip Burrows SiD Monthly Phone Meeting, 4/10/0716 1993 1996 Design Frozen ATLAS design progression for experimental area prior to award of civil engineering contract (Osborne)

17. Philip Burrows SiD Monthly Phone Meeting, 4/10/0717 Opening the plug under the 2000-ton load Plug 1 2 1 3 4

18. Philip Burrows SiD Monthly Phone Meeting, 4/10/0718 Heavy Lifting reviewed by Hubert Gerwig

19. Philip Burrows SiD Monthly Phone Meeting, 4/10/0719 Push-pull (Alain Herve) … Exchange must be done quickly, say in three days. Goals are ambitious, however, I concluded that they can be met, but this cannot be for free. Part of the saving from doing away with a second IR will have to be invested to provide a well-engineered, efficient and safe push- pull system. … The ‘larger detector’ will drive the requirements …

20. Philip Burrows SiD Monthly Phone Meeting, 4/10/0720 Moving platform (Herve) To move quickly and safely a 12’000-ton (or so) large composite object is not easy and a dedicated platform would do the trick. The two experiments will certainly be two projects largely independent from the machine, in organization and financing. It is thus very important to provide a well-defined interface from which all parties can design with different time scales (Civil Engineering needs to go in construction earlier than experiments). The platform would allow the detector to be commissioned in the garage position and moved in a nearly working state towards IP. the technically safe solution….

21. Philip Burrows SiD Monthly Phone Meeting, 4/10/0721 … And a clear interface for organization Collaboration could be responsible for opening, maintening, closing, and operating its experiment above the platform ILC machine could be responsible for moving the platform carrying a detector to the beam position, and from it to the garage positions. Mainly beam line would need to be re-connected (and re-aligned), in a common effort.

22. Philip Burrows SiD Monthly Phone Meeting, 4/10/0722 Concrete platform example See John Amman’s talk A 2’500-ton load on the CMS cover : 20 m between supports and 3 mm sag

23. Philip Burrows SiD Monthly Phone Meeting, 4/10/0723 Expected Cavern Movements (Osborne) For example for ATLAS Cavern* predictions : –Up to 2mm settlement after floor concreting –Up to 5.5mm settlement predicted after ATLAS in place (during first 6 months) –In the order of 1mm uplift per year thereafter Monitoring of cavern movements on-going. These factors need to be considered at an early stage in detector/machine designs *Extract from CERN EDMS Doc. ATC-T-ER-0004 by C.Lasseur, D. Lissauer, M.Hatch

24. Philip Burrows SiD Monthly Phone Meeting, 4/10/0724 Progress on many other issues … Detector services Temperature / humidity distributions in IR hall – stability? Radiation safety Personnel safety PACMAN – see GLDC Push-pull: platforms? Air pads? Rollers? Detector installation / access / door opening Alignment of detector, esp. after push-pull? Movers? Inner IR design: beampipe, QD0 cryostat + cryolines, vacuum, FB BPM … ‘emerging consciousness’ on cables, electronics …

25. Philip Burrows SiD Monthly Phone Meeting, 4/10/0725 Cryogenics block diagram (Gaddi)

26. Philip Burrows SiD Monthly Phone Meeting, 4/10/0726 Temperature/humidity distribution – CMS (Gaddi)

27. Philip Burrows SiD Monthly Phone Meeting, 4/10/0727 QD0 cryolines w. door opening (Parker)

28. Philip Burrows SiD Monthly Phone Meeting, 4/10/0728 QD0 cryostat cold bores, 2K QF1 cryostat cold bores, 2K ~4m z=4mz=7.3mz=9.3mz=12.5m incoming 0.2m Be part Legend: pump BPM, strip-line flanges kicker, strip-line valve bellows Tubes are TiZrV coated Pumps connected to the tubes close to the cone Beam screen with holes to avoid H 2 instability Vacuum considerations (Malyshev)

29. Hall Parameters - Length around 90 m Space reserved for shielding wall 8 m working corridor, could be from 0 to 100% on any one side of experiment in 2-m increments, using ‘working platforms’ to fill the gaps Space for ancillaries recovered from curved end-wall Maximum stroke 28m