1. SVX-II David Stuart, UC Santa Barbara May 11, 2006 David Stuart, UC Santa Barbara May 11, 2006

2. Why What How Outline Many details in following talks, so I’ll just review the design goals and then give a tour of the detector and its construction.

3. 132 ns Rad-hard Longer Double-sided Trigger-able Design goals The first 2 were required (well thought to be, vs 396 ns). The rest were desired. The last was critical for Bs mixing, and it drove the design.

4. Wedge geometry SVT requirements

7. Wedge geometry Precision alignment during construction r  and z SVT requirements

11. Wedge geometry Precision alignment during construction r  and z Fast, deadtime-less readout See Ankush’s SVX3D talk SVT requirements Now, I’ll describe the detector with a photo tour.

12. Bulkheads for mounting and cooling

13. SVXII Ladders Layer 1 Quarter Ladder BeO Hybrid glued to silicon Mounting tab Thermal bridge HDI, with LV boost wires Finger and jumper on next page

14. Fingers

15. Jumper bus to z-side

16. Reason for calling them ladders Note folded cables

17. Assembled into barrels

25. Spacers to allow lid to close over cables

27. Ready to slide into ISL

28. …after some packaging

29. 132 ns Rad-hard Longer Double-sided Trigger-able Recall Design goals

30. 132 ns ? Rad-hard Longer Double-sided Trigger-able Recall Design goals

31. 132 ns ? Rad-hard Longer ~ Double-sided Trigger-able Recall Design goals

32. 132 ns ? Rad-hard Longer ~ Double-sided ~ Trigger-able Recall Design goals

33. 132 ns ? Rad-hard Longer ~ Double-sided ~ Trigger-able ! ! Recall Design goals