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Reminder of upcoming milestones

Reminder of upcoming milestones. From meeting LIU-PS 18/09/2012. For all machines: Nov. 2012: Table of performance parameters Jan. 2013: Baseline activities defined Feb. 2013: Update APT/EVM (cost-to-completion) March 2013: Draft for Long and Mid Term Pls.

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Reminder of upcoming milestones

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  1. Reminder of upcoming milestones From meeting LIU-PS 18/09/2012 • For all machines: • Nov. 2012: Table of performance parameters • Jan. 2013: Baseline activities defined • Feb. 2013: Update APT/EVM (cost-to-completion) • March 2013: Draft for Long and Mid Term Pls. • May 2013: Technical design report • Clarify LIU-PS baseline and update APT/EVM basically NOW

  2. EVM update of LIU-PS (1/2) • LIU-PS01: Management • LIU-PS02: Beam Dynamics • LIU-PS03: Magnets • LIU-PS04: RF systems (incl. longitudinal/transverse damper) • 4.1 Low-level RF • 4.2 High power RF (long. damper kicker) • 4.3 Transverse damper • 4.4 RF controls • LIU-PS05: Power converters • LIU-PS06: Beam instrumentation • LIU-PS07: Beam intercepting devices • LIU-PS08: Vacuum system • LIU-PS09: Injection • LIU-PS10: Extraction and transfer • LIU-PS01: Management • LIU-PS02: Beam Dynamics • LIU-PS03: Magnets • LIU-PS04: RF systems (incl. longitudinal/transverse damper) • 4.1 Low-level RF • 4.2 High power RF (long. damper kicker) • 4.3 Transverse damper • 4.4 RF controls • LIU-PS05: Power converters • LIU-PS06: Beam instrumentation • LIU-PS07: Beam intercepting devices • LIU-PS08: Vacuum system • LIU-PS09: Injection • LIU-PS10: Extraction and transfer

  3. EVM update of LIU-PS (2/2) • LIU-PS11: Controls • LIU-PS12: Electrical Systems • LIU-PS13: Cooling and ventilation • LIU-PS14: Installation, transport and handling • LIU-PS15: Civil engineering • LIU-PS16: Radiation protection • LIU-PS17: Interlock systems • LIU-PS18: Alarms • LIU-PS19: Access system doors • LIU-PS20: Survey • LIU-PS21: Commissioning and operation • LIU-PS22: Dismantling • LIU-PS11: Controls • LIU-PS12: Electrical Systems • LIU-PS13: Cooling and ventilation • LIU-PS14: Installation, transport and handling • LIU-PS15: Civil engineering • LIU-PS16: Radiation protection • LIU-PS17: Interlock systems • LIU-PS18: Alarms • LIU-PS19: Access system doors • LIU-PS20: Survey • LIU-PS21: Commissioning and operation • LIU-PS22: Dismantling

  4. Present baseline (1/3)

  5. Present baseline (2/3)

  6. Present baseline (3/3)

  7. Resonance compensation • Compensation of resonances 2Qh+Qv=1, Qh+2Qv=1and 3Qv=1 requires skew sextupoles • Plan: • Re-install existing sextupole magnets during X-mas stand-by • Proof-of-principle beam tests in early 2013 (before LS1!) • Development of new compensation scheme during LS1, potentially including also octupoles (for 4Qv = 1) • Include resonance compensation magnets in LIU-PS03 (magnets) • Include power supplies + cabling for resonance compensation in LIU-PS05 (power converters ) A. Huschauer et al.

  8. RF (high-power and low-level) • Preliminary conclusion of PS-SPS transfer studies: • 2nd 40 MHz cavity will provide more margin (longitudinal emittance and transmission) • Even if 2nd cavity not available, operation possible • Main priority on improving reliability of existing cavities • Keep additional 40 MHz cavity as optional in LIU-PS4.2 (RF, high power) • No immediate justification for complete exchange of power amplifiers 10 MHz • Keep new 10 MHz power amplifiers optional in LIU-PS4.2 (RF, high power) • 1-turn feedback most probably not required on 20 MHz cavities • Keep new 20 MHz 1-turn feedback optional in LIU-PS4.1 (RF, low-level)

  9. Transverse feedback on the flat-top • Successful operation of transverse damper against FT instabilities • Plan (next to fully commissioning the damper): • Validate that observed instabilities are e-cloud driven • Estimate new requirements for the existing damper or an additional dedicated wide-band feedback • Maximum damper strength in CW • Include transverse feedback as baseline action against electron cloud instabilities in LIU-PS4.4 (RF, transverse damper) • Remove coating from project baseline in LIU-PS08(vacuum) horizontal A. Blas, G. Sterbini et al. FB ON FBOFF 10 ms!

  10. Beam instrumentation • Trajectory measurement of LHC-type beams shortly before ejection, when the beam is already bunches with 20/40 MHz • Tentative plan: • Investigate possibility of adding 1/2 transverse wide-band pick-up(s) as copies of existing pick-up in SS94 • Phase advance between pick-ups to be checked • Check needs for application software/LabView read-out • Input to be provided for BI review board on trajectory measurements • Eventually add transverse wide-band pick-ups to LIU-PS06 (beam instrumentation)

  11. Beam dump replacing SS12 ralentisseur • Dump to act as • a collimator to reduce losses at extraction (CT or MTE) • a ralentisseur for the emittance measurements • a fast scraper to measure the tails of the LHC beams • Replace internal dumps in SS47/48 • Alessandro Masifollowing-up development • To be included as baseline in work unit LIU-PS07 (beam intercepting devices)

  12. New vacuum chamber MU41 • Vacuum chamber of magnet unit 41 identified as aperture limitation, causing losses • New vacuum chamber MU41 as project baseline • To be included in LIU-PS08 (vacuum) work unit

  13. Summary • Cost-to-completion to be ready for early 2013 • Relevant changes to LIU-PS baseline: • Resonance compensation • High-power RF • Transverse feedback instead of e-cloud coating • Beam instrumentation • Beam dump replacing SS12 ralentisseur • New vacuum chamber MU41 • Minor changes and updates of all other work units • Please check \\cern.ch\dfs\Departments\BE\Projects\PSUpgrade\WorkPackages_2012-10-08 • Thank you for updating the work units in APT/EVM

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