Download - J.Osborne (CERN) for CES
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CES Studies at CERN for the Interaction Region :
-Summary of Linear Collider IR meeting at CERN held on 16 February 2011
-Design Brief for external design specialists
-Build-ability issues for concrete platforms underground
-Conclusions
J.Osborne (CERN) for CES
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3CLIC CDR Baseline Layouts for Interaction Region
ILC RDR Baseline Layouts for Interaction Region
ILC Concrete platform concept / shaft layout / crane capacities still need to be finalised before CE study can start
5ARUP’s matrix analysis strategy
6ARUP’s were asked to tender for 4 distinct tasks
7Air pads v Rollers for concrete platform movement will be further analysed
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92d and 3d models will be developed for CLIC to do a “Time-dependant” state analysis.
Possible 2nd phase use of these models for ILC layouts/geology.
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Budget for this Linear Collider IR study needs to be finalised :
• Possible cost sharing FNAL (Task 1) CERN (Task 2)
Some key decisions for ILC were resolved at Eugene meeting :
• Are both detectors using the “concrete” platform strategy : Yes
• Are the level of the platforms the same ?
• For the overall layout :
– Gantry crane capacity in the experimental hall ?– Should shafts be directly over the cavern or offset ?– Self shielding detectors : Yes
12Steel plates with tangs placed on building floor slab
Build-ability Issues for concrete platforms underground to be reviewed
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Conclusions• If everyone agrees, ARUP’s could proceed with :
– Task 1 - funded by FNAL ? (approx. 50KCHF)– Task 2 - funded by CERN (approx. 50KCHF)
• This study will be of benefit to both ILC and CLIC projects
• Several ILC detector issues need to be resolved before the study can go to the next level of detail
J.Osborne (CERN) for CES