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View From CERN

View From CERN. Summary of Upgrade Projects:. Phase 1 IR upgrade: construction project LINAC4: construction project Phase 2 collimation: design finalization PS2: conceptual design report LSPL: conceptual design report SLHC - Phase II upgrade: conceptual study.

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View From CERN

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  1. View From CERN Summary of Upgrade Projects: • Phase 1 IR upgrade: construction project • LINAC4: construction project • Phase 2 collimation: design finalization • PS2: conceptual design report • LSPL: conceptual design report • SLHC - Phase II upgrade: conceptual study Feedback on existing USLARP contributions Comments on and interest in future USLARP - APUL projects CM11 in FNAL; 27. & 28. October 2008 Oliver Brüning/CERN AB-ABP 0

  2. LHC Upgrade Plans and New Initiatives LHC Phase 1 Insertion Upgrade: lead by Ranko Ostojic • Project start: 2008 • Conceptual Design Report: November 2008 • Technical Design Report: Summer 2009 • Magnet models: Fall 2009 • Pre Series Quadrupoles 2010 • String test 2012 to 2013 • Installation in 2013-2014 shutdown • Commissioning during 2014 run CM12 in Napa; 8. - 10. April 2009 Oliver Brüning/CERN AB-ABP 1

  3. Phase 1 IR Upgrade Constraints Interfaces with the experiments: Very tight interfaces between the triplet, TAS, shielding, vacuum and survey equipment, and beam instrumentation; no possibility of reducing L* (23m). Cryogenics: Ultimate cooling capacity is 500 W@1.9K in each triplet. Replacement of triplets in IR1/5 requiresat presentwarm-up of 4 sectors. Chromatic aberrations: Reduction of b* drives chromatic aberrations all around the LHC. A new optics solution for all arcs and insertions is necessary. Accessibility and maintenance: Severe space constraints around IP1 and IP5 for any new equipment. New magnets must be similar in size to the LHC main dipole. Upgrade implementation: during the extended shutdown, compatible with CERN-wide planning (Linac4 commissioning, phase-I upgrade of the experiments). Courtesy of Ranko Ostojic Oliver Brüning/CERN AB-ABP 2 CM12 in Napa; 8. - 10. April 2009

  4. Phase 1 Collaborations Courtesy of Ranko Ostojic SLHC-PP (CEA, CIEMAT, CNRS, STFC) CERN • Quadrupole production • Cryostating and testing • Power converters • Protection • String test • Integration • Design and construction of the model quadrupole • Design of the correctors • Design of the cryostats LHC IR Upgrade Phase I Special French contribution (CEA, CNRS) US-APUL (BNL, Fermilab) • Quadrupole components • Cryostat components • Production of the correctors • D1 separation dipole • Cold powering Oliver Brüning/CERN AB-ABP 3 CM12 in Napa; 8. - 10. April 2009

  5. Goals for the LHC Phase 2 IR Upgrade Phase II Identify new IR layouts and magnet technologies that allow a ten fold increase in the nominal LHC luminosity (and radiation): • Prepare a solution that can withstand the radiation for operation with L = 1035 cm-2 sec-1 • The Phase II upgrade should be implemented once the Phase I solution reaches the end of the magnet lifetime (700 fb-1)  After 4 to 5 years of the Phase I upgrade operation assuming the Phase I operation reaches L = 3 1034cm-2sec-1  Earliest installation by 2018  requires substantial R&D • There are currently 2 options under study: • 25 ns option using integrated ‘slim magnets’ inside the detectors and CRAB cavities • 50 ns option using above ‘ultimate’ beam intensities CM12 in Napa; 8. - 10. April 2009 Oliver Brüning/CERN AB-ABP 4

  6. LHC Upgrade Plans and New Initiatives CERN New Initiatives LHC collimation: • Phase 2 collimation project lead by Ralph Assmann • review by 2009 (cryo collimators) with final decision once • operational experience becomes available from LHC • LHC injector complex: • LINAC4 project lead by Maurizio Vretenar approved construction project (construction started in 2009) with connection to PSB by 2013 with operation in 2014 • PS2 design study lead by Michael Benedikt • LSPL design study lead by Roland Garoby • SPS upgrade study team lead by Elena Shaposhnikova CM12 in Napa; 8. - 10. April 2009 Oliver Brüning/CERN AB-ABP 5

  7. 45 keV 3 MeV 50 MeV 90 MeV 160 MeV H - PIMS CCDTL RFQ DTL transfer line to PSB chopper line LEBT source 352 MHz 704 MHz 80 m Status of Linac4 collaborations Courtesy of Maurizio Vretenar Transfer line vacuum chambers and supports from Pakistan IPHI HIPPI ? CANCELLED Discussions with Saudi Arabia (DTL tanks) and ESS-Bilbao (drift tubes) ISTC # 3888 PIMS as in-kind contribution from Poland still unclear COMPLETED ISTC Project (Russia) for CCDTL approved Tuners, couplers, waveguides from India, under discussion French contribution: RFQ design and test, RF amplifiers, modulators - being signed US contribution: Laser Profile monitor (+ extension ?), under discussion Oliver Brüning/CERN AB-ABP 6 CM12 in Napa; 8. - 10. April 2009

  8. A bright point: civil engineering is progressing ! Courtesy of Maurizio Vretenar 27.11.2008 17 days delay due to bad weather conditions 15.12.2008 23.02.2009 Oliver Brüning/CERN AB-ABP 7 CM12 in Napa; 8. - 10. April 2009

  9. General Comment on USLARP Collaboration • Finalization of existing deliverables has high priority: • Installation of LHC luminosity monitors for 2009 run • Prototype of rotatable collimators • Nb3Sn magnet R&D with long prototype by 2010 Success of the above deliverables is vital for successful launch of new production projects! • General Comment on New initiatives at CERN: • Studies at CERN lack resources and offer interesting areas for US contributions • Help is desired in form of studies (USLARP) and hardware production and prototyping (APUL) CM12 in Napa; 8. - 10. April 2009 Oliver Brüning/CERN AB-ABP 8

  10. CERN Point of View on FY 2009 Activities • Feedback on current ‘Accelerator Systems’ activities: • Instrumentation: -Luminosity monitor • -AC dipole -LLRF • Collimation: -Rotatable collimators -Crystal studies • Accelerator Physics studies: -e-cloud -beam-beam -PS2 studies -CRAB cavities CM12 in Napa; 8. - 10. April 2009 Oliver Brüning/CERN AB-ABP 9

  11. CERN Feedback on FY 2009 Activities • Instrumentation: • Luminosity monitor: -Installation now complete and in time for 2009 startup! -Still needs to be extended to 40 MHz operation! -Software: low level done at CERN but who is looking after application software and commissioning?  LTV? • AC dipole: -Interface not clearly defined? • LLRF: -no longer requested for LINAC4 (only LHC: Loop setup) -there is also a European collaboration within FP7 (FLASH & Poland) CM12 in Napa; 8. - 10. April 2009 Oliver Brüning/CERN AB-ABP 10

  12. CERN Feedback on FY 2009 Activities • Collimation: • Rotatable collimators and Crystal studies: -another example of very good collaboration! -Roman pot installation for SPS MDs incomplete in 2009  still needs follow-up in 2010 Accelerator Physics Studies: • e-cloud: -wide band feedback system could cure instability -proposal for using more simplified code to perform more detailed feedback simulations (combine with TMCI) -CERN is not interested in new code development and bench marking! (Use of existing tools and application!) -interested in SPS simulation at various energies CM12 in Napa; 8. - 10. April 2009 Oliver Brüning/CERN AB-ABP 11

  13. CERN Feedback on FY 2009 Activities • Accelerator Physics Studies: • beam-beam: -interface definition with CERN could be improved -CERN is interested in more experimental studies (e.g. wire compensation experiments at RHIC) -CERN is interested in better theoretical understanding of experimental data (e.g. e-lens experiments at FNAL) -CERN is interested in new studies tailored to the new IR configuration of the Phase 1 IR upgrade CM12 in Napa; 8. - 10. April 2009 Oliver Brüning/CERN AB-ABP 12

  14. CERN Feedback on FY 2009 Activities • Accelerator Physics Studies: • PS2 studies: -great success of incorporation at CM10! -PS2 optics and lattice progressed a lot thanks to USLARP • CRAB Cavities: -great potential for Phase 2 upgrade -limitations in KEK operation now understood -still requires extensive R&D for application in Hadron machine -prototyping and testing for application in LHC are not straight forward to plan CM12 in Napa; 8. - 10. April 2009 Oliver Brüning/CERN AB-ABP 13

  15. CERN Wish List for Activities Beyond 2009 • LHC: • Hollow electron beam lens: -could be an interesting option for Phase II collimation -outstanding R&D issues could be USLARP contribution -production could be part of existing APUL package • Beam-beam compensation: -interest in more experimental studies on wire compensation (experiments in RHIC) -more studies related to electron-lens compensation (better understanding of the Tevatron observations) -construction for LHC could be a future APUL package CM12 in Napa; 8. - 10. April 2009 Oliver Brüning/CERN AB-ABP 14

  16. CERN Wish List for Activities Beyond 2009 • LHC: • CRAB cavities -currently studying options for installing prototype in LHC -work supported by a fellow under FP7 Eucard program -preparation of detailed test program and beam parameters with clear test objectives (currently being prepared by Rama Calaga from BNL) -CERN launched an impact study group (lead by Joachim Tuckmantel from the BE-RF group) to evaluate impact of tests on normal machine operation -requires more support from USLARP and other major partners to finance the required R&D development CM12 in Napa; 8. - 10. April 2009 Oliver Brüning/CERN AB-ABP 15

  17. CERN Wish List for Activities Beyond 2009 • LHC: • Beam instrumentation -radiation hard image sensors (cameras & photomultipliers) for equipment monitoring and data recording (e.g. synchrotron light monitor) -could be part of future APUL program • Collimation -Production of Phase 2 collimators could be part of a future APUL program CM12 in Napa; 8. - 10. April 2009 Oliver Brüning/CERN AB-ABP 16

  18. CERN Wish List for Activities Beyond 2009 • PS2: • major achievement to include PS2 in USLARP activities -baseline lattice and optics have well advanced thanks to USLARP contributions! • still need key support in major areas: -comparative studies on layout with different super- symmetries -correction systems (linear & non-linear) -collective effects & feedback -collimation system -40 MHz tuneable RF system (e.g. impedance) -could benefit from USLARP studies and LTVs CM12 in Napa; 8. - 10. April 2009 Oliver Brüning/CERN AB-ABP 17

  19. CERN Wish List for Activities Beyond 2009 • LINAC4 and SPL: • Beam instrumentation -H- emittance measurement using H- laser profile monitor -studies could be part of future USLARP activity -upgrade could be part of future APUL program • Beam Dynamics -SPL project would be interested in beam dynamics studies (e.g. using IMPACT) CM12 in Napa; 8. - 10. April 2009 Oliver Brüning/CERN AB-ABP 18

  20. General Questions • Option of future APUL projects: • CERN would be very interested in additional APUL projects in the future (e.g. Phase 2 Collimation) • Time scale? -when could future APUL projects be launched? (feedback from current APUL project not before 2011) CM12 in Napa; 8. - 10. April 2009 Oliver Brüning/CERN BE-ABP 19

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