LHC Optics Measurement and Corrections review

17 Jun 2013, 08:00 → 18 Jun 2013, 18:00 Europe/Zurich

6/2-024 - BE Auditorium Meyrin (CERN)

Frank Zimmermann (CERN), Massimo Giovannozzi (CERN), Mike Lamont (CERN), Oliver Bruning (CERN), Rogelio Tomas Garcia (CERN)

The LHC will resume operation in 2015 with an increased collision energy and new operational scenarios galore. Optics measurement and corrections will be challenged by dynamic beam processes as ramp & squeeze, collide & squeeze and beta* leveling. Furthermore the correction accuracy and the measurement resolution will continue to be challenged by the emittance measurement and the particle detectors requirements. This workshop aims at reviewing the status and progress in all fronts to ensure the high resolution measurement and correction for 2015. This review is within the HL-LHC and HighLumi framwork regarded as a general preparatory study for coming efficiently out of a long shutdown that features major machine modifications.

Monday, 17 June

08:45 → 09:00 Opening

Convener: Dr Frank Zimmermann (CERN)

08:45 Opening

Speaker: Steve Myers (CERN)

09:00 → 12:40 Operational scenarios

Review the requests from the experiments and the options from the machine point of view with implications in commissioning time and performance.

Conveners: Piotr Krzysztof Skowronski (CERN), Dr Stefano Redaelli (CERN)

09:00 Requirements from experiments

Speaker: Dr Benedetto Gorini (CERN)

Slides LPCatOMC.pdf LPCatOMC.pptx

09:25 Collide & Squeeze and Beta* leveling

Speaker: Dr Jorg Wenninger (CERN)

Slides Leveling.OMC.June13.pdf Leveling.OMC.June13.pptx

09:50 Optics configurations from injection to collision

Speaker: Dr Massimo Giovannozzi (CERN)

Slides OMC_20130617_MG.pdf OMC_20130617_MG.pptx

10:15 Measurements at beta*=0.4m and automatic local corrections

Speaker: Piotr Krzysztof Skowronski (CERN)

Slides

• 20130618.LHC.OMCWS.SegmentBySegment.v3.pdf
• 20130618.LHC.OMCWS.SegmentBySegment.v3.pptx
• 20130618.LHC.OMCWS.SegmentBySegment.v4.pdf
• 20130618.LHC.OMCWS.SegmentBySegment.v4.pptx

10:35 Coffee

11:00 LSA issues

Speaker: Mike Lamont (CERN)

Slides OMC-review-LSA.pdf OMC-review-LSA.pptx

11:25 Ramp & Squeeze

Speaker: Matteo Solfaroli Camillocci (CERN)

Slides Ramp_&_Squeeze.pptx

11:50 FiDeL status & changes in field quality after LS1

Speaker: Dr Ezio Todesco (CERN)

Slides et_omc_fidel_0613.pdf et_omc_fidel_0613.pptx

12:15 Non-linear modelling and machine set-up

Speaker: Ewen Hamish Maclean (University of Oxford (GB))

Slides OMC-review_2013.pdf

14:00 → 17:30 Beam Instrumentation

Requirements for emittance and optics measurements together with system upgrades

Conveners: Dr Ralph Steinhagen (CERN), Dr Rhodri Jones (CERN)

14:00 Requirements from BI and new instruments after LS1

Speaker: Bernd Dehning (CERN)

Slides LHC_Optics_Measurements_and_correction_review_Dehning_20130617.pdf LHC_Optics_Measurements_and_correction_review_Dehning_20130617.pptx

14:25 AC dipole upgrades

Speaker: Nicolas Magnin (CERN)

Slides AC-Dipole_upgrades.pdf AC-Dipole_upgrades.pptx

14:50 Future operation of the aperture kicker MKA

Speaker: Dr Jan Uythoven (CERN)

Slides Optics_review_MKA_JU.pdf Optics_review_MKA_JU.pptx

15:10 BPM software and longest acquisitions

Speaker: Mr Lars Jensen (CERN)

Slides BI-bpm-capture.pdf BI-bpm-capture.pptx

15:35 Coffee

16:05 New LHC Diode ORbit and OScillation System (DOROS)

Speaker: Marek Gasior (CERN)

Slides 130617_DOROS_LHC_optics_review_gasior.pdf 130617_DOROS_LHC_optics_review_gasior.pptx

16:30 BPM system upgrades and temperature regulation

Speaker: Eva Calvo Giraldo (CERN)

Slides LHCOpticsWorkshop_17Jun2013_ECalvo.pptx LHCOpticsWorkshop_17Jun2013_ECalvo.pptx

16:55 Automatic coupling correction

Speaker: Tobias Persson

Slides OpticsReview2013Correction_coupling_powerPoint.pdf OpticsReview2013Correction_coupling_powerPoint.ppt

Tuesday, 18 June

09:00 → 12:30 Optics measurements and corrections

Improvements and developments in optics measurement and correction algorithms and applications.

Conveners: Rogelio Tomas Garcia (CERN), Dr Yngve Inntjore Levinsen (CERN)

notes LHC_OMC_webex_instructions.pdf

09:00 Improvements in optics measurement resolution and error reconstruction

Speaker: Andy Sven Langner (Hamburg University (DE))

Slides OMC_Review_2013c.pdf

09:25 Optics corrections in RHIC

Speaker: Mei Bai (BNL)

Slides RHICOpticsStatus_LHCopticsReview_Bai.pdf RHICOpticsStatus_LHCopticsReview_Bai.pptx

09:50 Chromatic coupling correction

Speaker: Dr Yngve Inntjore Levinsen (CERN)

Slides omc_review_chromcouple.pdf

10:15 Coffee

10:45 Plans for K-modulation

Speaker: Maria Kuhn (Hamburg University (DE))

Slides K-Modulation_Plans.pdf K-Modulation_Plans.pptx

11:10 OMC codes

Speakers: Thomas Bach, Viktor Maier (CERN)

Slides

• omc_code_2.pdf
• omc_code_2.pptx
• omc_tbach.pdf

11:35 Observations on dispersion (2011-2012)

Speaker: Kevin Shing Bruce Li (CERN)

Slides LHC-OMC-Li.pdf

11:55 Measurement of amplitude detuning with AC dipoles

Speaker: Simon White (BNL)

Slides OMC_2013.pdf

14:00 → 17:00 Early commissioning stage

Are we ready to face a commissioning coming out of a long shut down with major machine modifications? Will there be sector tests?

Conveners: Mike Lamont (CERN), Verena Kain

14:00 Outline of 2014/2015 plans

Speaker: Verena Kain (CERN)

Slides StartUp_postLS1.pdf StartUp_postLS1.pptx

14:25 Transfer lines, injection, and extraction re-commissioning

Speaker: Chiara Bracco

Slides Optics_Review_inj_extr.pdf Optics_Review_inj_extr.pptx

14:50 Initial optics checks

Speaker: Kajetan Fuchsberger

Slides

• 2013-06-18-omc-review-initial-optics-checks.pdf
• 2013-06-18-omc-review-initial-optics-checks.pptx
• 2013-06-18-omc-review-initial-optics-checks.pptx

15:15 Coffee

15:45 Polarity checks of non-linear circuits

Speaker: Meghan Jill Mcateer (University of Texas (US))

Slides OMC_polarity_McAteer.pdf OMC_polarity_McAteer.pptx

16:05 On-line model

Speaker: Dr Ghislain Roy (CERN)

Slides 2013-06-18_OMC_OnlineModel_gR.pdf 2013-06-18_OMC_OnlineModel_gR.pptx

16:30 Aperture checks

Speaker: Dr Stefano Redaelli (CERN)

Slides SR_OMC_2013-06-18.pdf SR_OMC_2013-06-18.ppt

16:45 Collimation setup

Speaker: Belen Salvachua Ferrando (CERN)

Slides 2013-06-18-belen.pdf

17:00 → 17:30 Closeout

Convener: Oliver Bruning (CERN)

17:00 CLoseout

Speaker: Gianluigi Arduini (CERN)

Slides Closeout_OMCaspresented.pdf Closeout_OMCaspresented.pptx