1. Santa Cruz Meeting August 12 th 2008 Layout options & Schedule Issues David Lissauer 8/12/2008 1David Lissuaer, Santa Cruz Meeting.

2. Milestones  End CE works: December 2010  Installation: 2011  Linac commissioning: 2012  Modifications PSB: shut-down 2012/13 (6 months)  Beam from PSB: 1rst of May 2013 LHCC – 1 July, 2008 8/12/20082 David Lissauer, Santa Cruz Meeting.

3. Construction of LP-SPL and PS2 will not interfere with the regular operation of Linac4 + PSB for physics. Similarly, beam commissioning of LP-SPL and PS2 will take place without interference with physics. Milestones  Project proposal: June 2011  Project start: January 2012  LP-SPL commissioning: mid-2015  PS2 commissioning:mid-2016  SPS commissioning: May 2017  Beam for physics: July 2017 3 LHCC – 1 July, 2008 8/12/20083David Lissuaer, Santa Cruz Meeting.

4. Normal RampNo phase II Year Peak Lumi (x 10 34 ) Annual Integrated (fb -1 ) Total Integrated (fb -1 ) Peak Lumi (x 10 34 ) Annual Integrated (fb -1 ) Total Integrated (fb -1 ) 20090.166 66 20100.212180.21218 20110.530480.53048 2012160108160108 20131.5901981.590198 201421203182120318 20152.51504682.5150468 201631806483180648 20173064830 201853009483180828 20198420142831801008 202010540202831801188 202110600262831801368 202210600322831801548 202310600382831801728 202410600442831801908 202510600502831802088 Collimation Linac4 + IR upgrade phase 1 New injectors + IR upgrade phase 2 Radiation damage limit ??? 8/12/2008 4David Lissuaer, Santa Cruz Meeting. Note: Predicted integrated Luminosity Lower than assumed.

5. Collimation phase 2 Linac4 + IR upgrade phase 1 New injectors + IR upgrade phase 2 Early operation 8/12/2008 5David Lissuaer, Santa Cruz Meeting.

6. Collimation phase 2 Linac4 + IR upgrade phase 1 New injectors + IR upgrade phase 2 Early operation 8/12/2008 6David Lissuaer, Santa Cruz Meeting.

7. 8/12/2008 7David Lissuaer, Santa Cruz Meeting. Layout (4+3+2) Fixed Length Barrel 4 Pixel Layers: 1(2) b-layers “easily replaceable” inside a support tube. 3(2) Layers incorporated in the Fixed length Barrel. Mechanical Support: Off the tube? Off the Barrel 3 Pixel Discs on the outside. Internal Discs?

8. 8/12/2008 8David Lissuaer, Santa Cruz Meeting. Layout Overview Barrel Length: 240 Cm (Full length) 12 sensors/side. Discs: 5 Discs / Side. Need optimization.

9. 8/12/2008 9David Lissuaer, Santa Cruz Meeting. Layout Overview (4+3+2) Fixed Length.

10. 8/12/200810David Lissuaer, Santa Cruz Meeting. Disc Layout is still uncertain. We need to converge on a “baseline” by the time of the Nikhef meeting. Solution with better coverage but more complicated from an Engineering point of view and more massive. - Need optimization.

11. Eng. Layout Studies 8/12/200811David Lissauer, Santa Cruz Meeting. Eng. Studies of the Layout. Global Support Tube: Pixel? – Very Short strips?

12. Baseline Assembly Sequence 8/12/200812David Lissuaer, Santa Cruz Meeting.  “Full” Assembly on the surface in “Global Tracker Tube”  Barrel SS/LS  Pixel outer Layers (2 or 3)  Pixel Discs + Pixel Tube  EC LS/SS + Pixel Tube  Full test on the surface prior to installation  Insertion from the side  ~ 6.5 Meter Long  ~1 meter Diameter  Borated Poly insertion & Services preparation on the Cryostat  Global Tube insertion from the side  Services connections

13. 13 ATLAS UPGRADE ASSEMBLY SEQUENCE OF INNER DETECTOR C.BAULT May 15th 2008 Outer cylinder Barrel-LS Pixel Barrel-SS Pixel Services INSERTION END-CAP NOSE + PIXEL DISCS 5-6 INTO OUTER CYLINDER End_Cap nose Pixel discs 5-6 Services

14. 14 ATLAS UPGRADE ASSEMBLY SEQUENCE OF INNER DETECTOR C.BAULT May 15th 2008 Outer cylinder Barrel-LS Pixel Barrel-SS END-CAP NOSE + PIXEL DISCS 5-6 INSTALLATION OF SERVICES End_Cap nose Pixel discs 5-6 Services

15. 15 ATLAS UPGRADE ASSEMBLY SEQUENCE OF INNER DETECTOR C.BAULT May 15th 2008 Outer cylinder Barrel-LS Pixel Barrel-SS End_Cap nose Pixel discs End_Cap main bloc with services INSERTION MAIN BLOC OF END-CAP INTO OUTER CYLINDER

16. 16 Atlas IT envelope layout drawing 160 Pixel Electrical Connectors

17. ATLAS Timeline. LHCC will ask experiments for:  LoI Letter of Intent – Mid 2009  TP Technical Proposal - spring 2010  TDR Technical Design report / Subsystem (do not have to be at the same time)  ID – Late 2010 (early 2011)  Calorimeters - Middle of 2011  Muons - Middle / Late 2011 (Depend on upgrade scope) 17 8/12/2008 David Lissuaer, Santa Cruz Meeting.

18. 8/12/2008 18David Lissuaer, Santa Cruz Meeting. Schedule Overview (Preliminary)  Ready for beam December ‘17  Tracker Installation February ‘17  Tracker Ready for installation (Testing)July ‘16  Barrel Installation in the Support TubeJanuary ‘16  EC Installation in the Support TubeApril‘16  Stave installation startJune ‘14  Support Structure ready for installationJanuary ‘14  Start services installation  EC Stave Production starts June ’13  Barrel Stave Assembly startsJanuary ’13  Readout Electronics and Stave components ready for assembly at this time.

19. Conclusions 8/12/200819David Lissuaer, Santa Cruz Meeting.  Little feedback from Simulation to date!!  We might not have significant feedback from physics analysis before final decisions will need to be made.  To stay on Schedule need to agree on a baseline (at least for the barrel) by the NIKEHF meeting.  Assembly on the surface has significant advantages. Might be the only solution that will allow installation of the detector in 18 month shut down.  Has serious schedule implications!!!  Detector needs to be ready ~12-18 month earlier.