1. BDS Design Studies John Amann ILC Mechanical Engineering 10/24/06

2. Amann 10/24/06 BDS Alcove Layout 4.5m x 6m x 3m Freestanding 800kW Power Supply Rack Mounted Power Supplies Instrumentation/Control/Vacuum Racks

3. Amann 10/24/06 PDL1 Area 4m Service Tunnel 3.25m floor.75m Cable Penetration High Density of Power Supplies 20m Section 23 Freestanding PS 15 Rack Mount PS

4. Amann 10/24/06 4m Service Tunnel Installation Issues? 350kW Power Supply Fits

5. Amann 10/24/06 Tunnel Pocket to Accommodate 800kW PS 4m Service Tunnel 4m BDS Tunnel Clearance Around Racks and PS Cable Tray 800kW PS Tunnel Pocket Need 2 Total for BDS 1 for Each BSY

6. Amann 10/24/06 Push Pull IR 25m x 100m x 30m

7. Amann 10/24/06 Push Pull IR (Cavern Hidden) GLD Sized Detector Mobile Shield Wall Mobile Platform 20m x 30m Electronics/Cryo Shack 1m Shielded

8. Amann 10/24/06 Mobile Shield Wall Half Steel Reinforced Concrete 3m Thickness 9m Base Interference with Service Tunnel Opening 25m Height Structural Rib Overlapping Rib

9. Amann 10/24/06 Pac Man For BDS Tunnel Recessed Niche Pac Man Open Pac Man Closed Can not locate Pac Man on IR wall. Not enough clearance to open and close. Solution: Create Recessed Niche

10. Amann 10/24/06 Asymmetrical Pac Man Beam Line Support Here Minimize Unsupported Span ~3m Still need to think about Pac Man “snout” to span IR wall to detector. Should it be integrated into detector? Detector Pac Man

11. Amann 10/24/06 IR Concrete Floor Deformation Extreme Case 20,000psi Max Y Displacement =.6mm From CMS/ATLAS experience, need 5cm thick steel plates on IR Floor to prevent cracking.

12. Amann 10/24/06 Work in Progress…… -Design of beam line breaking point/location of SC magnets. -Design of Pac Man snout to enclose breaking point. -Air caster modules for mobile platform and shield wall. -Service tunnel entrance/access from IR. -More detailed IR floor deformation studies.