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Santa Cruz Meeting August 12 th 2008 Layout options & Schedule Issues David Lissauer

Santa Cruz Meeting August 12 th 2008 Layout options & Schedule Issues David Lissauer. LHC Stage 1: Planning. LHCC – 1 July, 2008. Milestones End CE works: December 2010 Installation: 2011 Linac commissioning: 2012 Modifications PSB: shut-down 2012/13 (6 months)

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Santa Cruz Meeting August 12 th 2008 Layout options & Schedule Issues David Lissauer

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

  2. LHC Stage 1: Planning LHCC – 1 July, 2008 • 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 David Lissauer, Santa Cruz Meeting.

  3. Stage 2: Planning 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 LHCC – 1 July, 2008 David Lissuaer, Santa Cruz Meeting. 3

  4. Luminocity expectations Note: Predicted integrated Luminosity Lower than assumed. Collimation Linac4 + IR upgrade phase 1 New injectors + IR upgrade phase 2 Radiation damage limit ??? David Lissuaer, Santa Cruz Meeting.

  5. Peak luminosity… New injectors + IR upgrade phase 2 Early operation Linac4 + IR upgrade phase 1 Collimation phase 2 David Lissuaer, Santa Cruz Meeting.

  6. Integrated luminosity… New injectors + IR upgrade phase 2 Linac4 + IR upgrade phase 1 Early operation Collimation phase 2 David Lissuaer, Santa Cruz Meeting.

  7. 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? David Lissuaer, Santa Cruz Meeting.

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

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

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

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

  12. Baseline Assembly Sequence • “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 David Lissuaer, Santa Cruz Meeting.

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

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

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

  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) David Lissuaer, Santa Cruz Meeting.

  18. Schedule Overview (Preliminary) • Ready for beam December ‘17 • Tracker Installation February ‘17 • Tracker Ready for installation (Testing) July ‘16 • Barrel Installation in the Support Tube January ‘16 • EC Installation in the Support Tube April ‘16 • Stave installation start June ‘14 • Support Structure ready for installation January ‘14 • Start services installation • EC Stave Production starts June ’13 • Barrel Stave Assembly starts January ’13 • Readout Electronics and Stave components ready for assembly at this time. David Lissuaer, Santa Cruz Meeting.

  19. Conclusions • 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. David Lissuaer, Santa Cruz Meeting.

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