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HIGHLIGHTS OF LAST MONTHS OF HSS ACTIVITIES

Recap of the past month's high-energy physics activities, including LHC operations, beam commissioning, PS projects, and FCC studies. Contributions to commissioning scenarios, Run II preparations, and tracking studies. Updates on new system configurations and beam dynamics in collimators and detectors. Mid-term evaluations and support in failure analysis for experimental insertions. Developments in machine-detector interface and resonance compensation studies. Successful FCC Horizon 2020 study initiation with global participation. Detailed information on luminosity goals, layouts, and computing advancements. Hosting of workshops on advanced optics, space charge, and beam physics. Exciting prospects in the Google summer student program.

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HIGHLIGHTS OF LAST MONTHS OF HSS ACTIVITIES

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  1. HIGHLIGHTS OF LAST MONTHS OF HSS ACTIVITIES AN EXCITING AND HECTIC PERIOD WITH THE LHC BACK IN OPERATION… ABP General Group meeting - HSS

  2. LHC: back in operation • Contribution to commissioning scenarios (with HSC) • Preparation of optics for Run II • Contribution to beam commissioning and machine co-ordination Protons and ions First beams on Easter Sunday… ABP General Group meeting - HSS

  3. Optics under control Peak beta-beating below 10% for beta* between 40 and 80cm ABP General Group meeting - HSS

  4. Second life for on-line model • The Run 1 Java framework updated to follow the control system upgrades • Aperture Meter and other apps online

  5. …with new applications and tools • New Java library that interfaces all relevant datasources (LSA, logging and measurements DBs) to build LHC MADX models • Optics, knobs settings, orbit, measured parameters, misalignments, magnetic errors, etc. • It allows to build specialized tools quickly • Modelling of orbit and beta beating • Builds LHC MAD-X model corresponding to a given moment in time • Performs special analyses, e.g., Q’ vs. MO strength

  6. SPS: still no need for action… • No activities to mention, yet. But…collimation project will start taking part in studies for the SPS. ABP General Group meeting - HSS

  7. PS: in good shape as usual… • Contribution to overall beam commissioning and studies (with HSC). • MTE commissioning: • Identified source of fluctuations in beam trapping into stable islands • The beam has been sent to SPS and extracted. • It will be used for the FT physics soon, while optimisation continues in the PS and SPS ABP General Group meeting - HSS

  8. Projects/studies: business as usual… • Collimation: LHC activity - beam commissioning • Commissioning of the system without and with beam • New post-LS1 system: 30 collimators changed/added • New BPM collimator design • Successful commissioning of the system, very good cleaning performance. • Strong support to OP for all new configurations. BPM button ABP General Group meeting - HSS

  9. Projects/studies: business as usual… • HL-LHC • WP2 (beam dynamics) • Optics studies: • New layout just released (HLLHCV1.2) • Advanced concepts • Tracking studies: • Field quality of new magnets analysed and target error tables available • Analysis of ripple in power converters • DA computation for operational cycle Now: contribution to the Technical Design Report ABP General Group meeting - HSS

  10. Projects/studies: business as usual… • HL-LHC • WP5 (collimation) • Strong participation to HiRadMat tests: tested 3 full collimator jaws, 1 for LHC and 2 for HL (new materials) • Complete work for TDR, with updated baseline for DS collimation • Improved design of hollow e-lens, started construction of gun to be tested at FNAL. • WP8 (machine detector interface) • Analysis of failure scenarios relevant for experimental insertions Now: contribution to the Technical Design Report ABP General Group meeting - HSS

  11. Projects/studies: business as usual… • HL-LHC • Ions: specification of beam parameters for input to LIU • LIU-PS • Coordination of activities • Studies of resonance compensation in the PS (other activities in HSC or in collaboration with HSC) Resonance 8Qv=50 excited by space charge: issue solved by changing the integer tune ABP General Group meeting - HSS

  12. FCC Horizon 2020 Design Study Proposal approved by EC ! Future Circular Collider (FCC) study FCC Week 2015 Washington DC 340 participants FCC study now: 61 institutes from 23 countries & CERN addressing key aspects of FCC-hh • Site investigations: • 90 – 100 km fits geological situation well • LHC suitable as potential injector updated FCC-hh luminosity vs time over 24 h, 2 phases Goal: ~20 ab-1over 25 years updated FCC-ee luminosity vs c.m. energy FCC-hh & FCC-ee: compatible layouts 2 reviews held in June 3 reviews in Oct. & Nov. FCC Week 2016 in Rome

  13. Computing: steady increase of activities Contributors are welcome! • MAD-X • Service to the users • Refurbishment of code • New physics or improved models(required for new projects/studies) • SixTrack • Service to the users • New physics or improved models (required for new projects/studies) (also with HSC) • Incorporation of features of general interest developed by users for private versions • Harmonisation of collimation version of SixTrack and standard version ABP General Group meeting - HSS Google summer student programme provided efficient help!

  14. EuCARD-2 WP5 Extreme Beams http://cern.ch/xbeam Organized and co-sponsored Workshops in 2015 so far: Advanced Optics Control (with XRING), CERN, 5.-6.02.2015 FCC Week 2015, Washington DC, 23-27 March 2015 Space Charge 2015, Oxford, 23-27 March 2015 LLRF and Beam Physics, Lund, 1-2 June 2015 LHeC 2015, CERN & Chavannes, 24-26 June 2015 Preparing for EDM measurements at storage rings, Mainz, 10-11 September 2015 Upcoming Workshops: Beam Dynamics meets Diagnostics, Firenze, 4-6 November 2015 Polarization Issues for High Energy Circular Colliders, Rome, 16 April 2016 Energy Frontiers meet Precision Frontiers, Juelich, 2016 Focus: Future Frontiers in Accelerators “F3IA”, Germany, 2016

  15. XRING+XCOLL joint workshop 49 Participants CERN: 27, Switzerland: 1, France: 2, Germany: 7, Japan: 1, Russia: 1, Spain: 2, UK: 5, USA: 3

  16. A BIG THANK YOU FOR THE EFFORTS AND CONGRATULATIONS FOR THE RESULTS ACHIEVED! ABP General Group meeting - HSS

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