1. Tom Lackowski Revised 10/12/2011
IR Hall Overview
Tom Lackowski
Revised 10/12/2011
Sep LCWS11
Global Design Effort

2. Design Development IR Halls Damping Rings Positron Source RTML
Meeting in Orsay -May
Arup Meeting in London - July
Damping Rings
Meeting w/ Mark Palmer at Fermilab + Webex participation w/ Susanna Guiducci May and Sept.
Damping Ring Baseline Review INFN-LNF July
Positron Source
Meeting at Fermilab W/ Wie Gai and Wanming Liu - Aug
RTML
Several meetings at Fermilab W/ Nikolay Solyak Aug./Sept.
Sep LCWS11
Global Design Effort

3. ILC Overview
Sep LCWS11
Global Design Effort

4. IR Hall in context of Central Region
Sep LCWS11
Global Design Effort

5. Current drawing does not show all of the life safety cross connections
The geometry of the IR Hall, Damping Ring, PLTR and ELTR are inter related.
The plan shows an estimated 20 meters of rock between Damping Ring and IR Hall for structural considerations. Arup to verify.
Rock massing for IR Hall
Stability for Damping Ring
Current drawing does not show all of the life safety cross connections
Sep LCWS11
Global Design Effort

6. Parallel Sessions - September 28 am cont.
Joint Session with MDI/Detectors
T Lackowski - Overview of Central Region Development
J Osborne - Status of ARUP Consulting
Y Sugimoto – Update on Japanese Mountain Site
K Riles – R&D Update for SiD Final Focus Magnet Alignment
Several Different IR Layouts are Under Consideration
Regional/Local Conditions will have an Impact on IR Hall Design
Americas Region IR
Japanese Mountain Site IR
SiD IR
CLIC IR

7. Parallel Sessions - September 28 am cont.
Joint Session with MDI/Detectors
Discussion Focused on Alternative IR Layout Proposed by M Oriunno
Dimensions Still Need Verification by ILD
“Z” Shape for IR Hall is the Consensus Shape for European and Americas Region
Shaft Number, Arrangement and Locations are Still Under Consideration
Overall IR Design Still Needs Review With Respect To:
Detector Assembly Methods
Crane Coverage
Use of Platforms
Detector Maintenance
SiD IR

8. Plan Development
Drawings presented at the July Arup meeting and criteria discussed at May Orsay meeting are the basis for current plan.
“L” shape provides opportunity to explore functionality and structural competency of alternate designs.
Shaft costs in RDR estimate approached 50 percent of underground excavation cost.
Both the shaft size and the number of shafts are cost drivers.
Date Event
Global Design Effort

9. Current layout
Date Event
Global Design Effort

10. Ø18 m
Ø8.5 m
July Arup Meeting

11. Detector Dimensions
Sep LCWS11
Global Design Effort

12. Vertical Hall Requirements
Arup study will help determine platform height.
Need to understand cryo distribution
Date Event
Global Design Effort

13. Crane Coverage
Optimal crane coverage is an important feature for constructing and servicing the detectors.
For top riding bridge cranes hook approach is 3.5 to 4 meter from end of runways and 1 to 1.5 meter from end of bridge.
Cranes cannot reasonably or safely have over-lapping coverage.
Crane and cryo distribution need to be compatible
Date Event
Global Design Effort

14. Cranes, Cryo Distribution and Rock Massing must be Compatible
July Arup Meeting
Sep LCWS11
Global Design Effort