Meetings of the LIU-SPS Beam Dynamics Working Group in 2020
1 Meeting on 16th January 2020 at 15:30 in 864-1B-04 minutes Update on the SPS horizontal instability studies C. Zannini slides Single Bunch Instability at Flat Top I. Karpov slides Reference Measurements at Flat Bottom M. Schwarz slides
10 Meeting on 19th December 2019 at 15:30 in 864-1B-04 minutes Update on 915 MHz HOM M. Schwarz slides Past experience with electron cloud and scrubbing in the SPS H. Bartosik slides End-of-Year Summary E. Shaposhnikova slides
9 Meeting on 21st November 2019 at 15:30 in 864-1B-04 minutes Update on effect of 915 MHz HOM on LHC beam M. Schwarz slides Effect of 915 MHz HOM on fixed target beam (longitudinal) I. Karpov slides Effect of 940 MHz HOM on fixed target beam (transverse) C. Zannini slides
8 Meeting on 24th October 2019 at 15:30 in 864-1B-04 minutes SPS-LHC transfer losses L. Medrano slides Studies of 915MHz HOM in SPS travelling-wave structure P. Kramer slides Impedance considerations for the proposed eSPS A. Farricker slides
7 Meeting on 19th September 2019 at 15:30 in 864-1B-04 minutes SPS-LHC Energy Matching V. Kain slides Different FB methods and effect on instability threshold M. Schwarz slides
6 Meeting on 8th August 2019 at 15:30 in 864-1B-04 minutes Effect of the 938MHz couplers on the horizontal stability C. Zannini slides Effect of the 915MHz HOM on multi-batch stability M. Schwarz slides
5 Meeting on 4th July 2019 at 14:00 in 864-1B-04 minutes First look on 915MHz HOM in SPS cavities P. Kramer slides HOMs around 915 MHz in 200 MHz TWCs of SPS N. Nasresfahani slides Multi-batch flat-top simulations M. Schwarz slides
4 Meeting on 9th May 2019 at 15:30 in 864-1B-04 minutes CERN-SPS horizontal instability C. Zannini slides Longitudinal stability of the ions after slip-stacking T. Argyropoulos slides Update on the synchronous phase measurements M. Schwarz slides
3 Meeting on 28th March 2019 at 15:30 in 864-1B-04 minutes LLRF specification for RF manipulations G. Papotti slides LLRF specification for controlled emittance blow-up T. Argyropoulos slides LLRF specification for controlled emittance blow-up H. Timko slides Update on work on impedance reduction and 200 MHz TWCs A. Farricker slides Effect of 200 MHz TWC frequency shift on instabilities M. Schwarz slides Milestones for longitudinal beam dynamics studies E. Shaposhnikova slides
2 Meeting on 21st February 2019 at 15:30 in 864-1B-04 minutes MTE Beam With Gaps. Observations of 2018-11-09 T. Bohl slides BLonD-MPI: Distributed Longitudinal Beam Dynamics Simulations K. Iliakis slides Post-LS2 flat-bottom simulations in Q20 and Q22 optics M. Schwarz slides
1 Meeting on 17th January 2019 at 15:30 in 864-1B-04 minutes The Vlasov-solvers GALACTIC and GALACLIC and applications to longitudinal mode-coupling instability E. Metral slides A two-mode model to study the effect of space charge on TMCI in the long-bunch regime E. Metral slides Updates on 10s long flat-bottom simulations M. Schwarz slides Effect on beam stability of 200 MHz voltage reduction J. Repond slides Maximum voltage of 800 MHz TWC for Landau damping E. Shaposhnikova slides
11 Meeting on 18th December 2018 at 14:00 in 864-1B-04 minutes Extra matching lines for new FPCs of SPS TWCs N. Esfahani slides Results of the latest synchronous phase measurements M. Schwarz slides Overview of 2018 Ion run H. Bartosik slides Longitudinal stability of Ions T. Argyropoulos slides End-of-year summary E. Shaposhnikova slides
10 Meeting on 20th November 2018 at 14:00 in 864-1B-04 minutes Observations of ions in the SPS T. Argyropoulos slides Latest update on the wideband feedback system K. Li slides Update on horizontal instability studies H. Bartosik slides Online bunch length measurements in the SPS G. Papotti slides
9 Meeting on 23rd October 2018 at 14:00 in 864-1B-04 minutes Longitudinal flat bottom instability in the SPS: effect of 800 MHz cavity M. Schwarz slides Recent reference measurements with long bunches G. Papotti slides Stabilising 4 x 12 x 2e11 ppb G. Papotti slides Measurements of horizontal instability H. Bartosik slides Possible quality control of the VF impedance shielding C. Vollinger slides
8 Meeting on 25th September 2018 at 14:00 in 864-1B-04 minutes Overview of the last SPS MDs H. Bartosik slides Measurements of the synchronous phase shift A. Farricker slides Longitudinal instabilities on the SPS flat bottom M. Schwarz slides
7 Meeting on 28th August 2018 at 14:00 in 864-1B-04 minutes Longitudinal instability of 12 bunches on the SPS flat bottom - Measurements M. Schwarz slides Longitudinal instability of 12 bunches on the SPS flat bottom - Simulations J. Repond slides Sorting of the LSS machine elements for Impedance mitigation C. Vollinger slides Present status of HOM damping P. Kramer slides
6 Meeting on 31st July 2018 at 14:00 in 864-1B-04 minutes Longitudinal stability of 12 bunches J. Repond slides Measurements with high intensity 25 ns beam in the recent MDs - Transverse M. Carla' slides Measurements with high intensity 25 ns beam in the recent MDs - Longitudinal M. Schwarz slides Update on BPV impedance model A. Farricker slides
5 Meeting on 3rd July 2018 at 14:00 in 864-1B-04 minutes First results of the loss MDs in 2018 M. Schwarz slides The latest SPS impedance model after the LS2 A. Farricker slides Effect of the 80 MHz impedance J. Repond slides Update on slip-stacking simulations D. Quartullo slides
4 Meeting on 6th June 2018 at 10:00 in 864-1B-04 minutes Status of the SPS collimator system studies M. Patecki slides Slip-stacking simulations with intensity effects D. Quartullo slides Update on the SPS 80 MHz RF system evaluation J. Repond slides HOM damping in the 3-section 200 MHz TWC P. Kramer
3 Meeting on 24th April 2018 at 14:00 in 864-1B-04 minutes Simulations of long-term losses M. Schwarz slides Parameters of the low-frequency capture RF system in the SPS J. Repond slides Correction of the 2nd order chromaticity by octupole reconfiguration H. Bartosik slides First results of horizontal aperture measurements after modification of QD apertures in YETS V. Kain slides
2 Meeting on 20th March 2018 at 14:00 in 864-1B-04 minutes Verification of HOM-mitigation by measurements on one section P. Kramer Measurements on 4-section cavities in SPS tunnel N. Nasresfahani slides First slip-stacking simulations with BLonD D. Quartullo slides Simulations of instabilities during ramp J. Repond slides
1 Meeting on 13th February 2018 at 14:00 in 864-1B-04 minutes Space charge studies in presence of power converter ripple H. Bartosik slides The update on the loss studies M. Schwarz slides Measurements of 630 MHz HOM damping with new couplers N. Nasresfahani slides
11 Meeting on 14th December 2017 at 15:30 in 864-2B-14 (JBA) minutes The TMCI and instability studies in Q22 M. Beck slides Transverse beam dynamics and MDs in 2017 H. Bartosik slides Studies of the SPS Impedance in 2017 C. Vollinger slides End-of-year summary E. Shaposhnikova slides
10 Meeting on 16th November 2017 at 15:30 in 864-2B-14 (JBA) minutes News on the SPS impedance A. Farricker slides Update on HOM damping in 3-sections cavities P. Kramer slides Multipactor effect and vacuum considerations for the parallel line HOM coupler N. Nasresfahani slides Instability mode studies J. Repond slides Recent capture loss measurements M. Schwarz slides Uncaptured beam measurements T. Bohl slides,m1,m2
9 Meeting on 19th October 2017 at 15:30 in 864-2B-14 (JBA) minutes Preliminary results from the high intensity run -- transverse plane H. Bartosik slides Preliminary results from the high intensity run -- longitudinal plane J. Repond slides Nonlinear chromaticity M. Carla' slides HOM damping in 3-sections 200 MHz cavities P. Kramer slides Update on SPS impedance model A. Farricker slides
8 Meeting on 14th September 2017 at 15:30 in 864-2B-14 (JBA) minutes Results of the recent MDs on beam losses M. Schwarz slides Measurements of beam instabilities during ramp with FB off J. Repond slides AOB A. Lasheen, H. Bartosik, P. Kramer s1,s2,s3
7 Meeting on 17th August 2017 at 15:30 in 864-2B-14 (JBA) minutes New 628 MHz coupler; the design procedure and evaluation N. Nasresfahani slides Review of the SPS impedance model A. Farricker slides Measured beam losses in Q20 and Q22 cycles M. Schwarz slides Measured Instability thresholds during ramp J. Repond slides Future instability thresholds in simulations with beam loading limitation J. Repond slides
6 Meeting on 13th July 2017 at 15:30 in 864-2B-14 (JBA) minutes Minutes and actions E. Shaposnikova Tomography of the rotated PS bunches in the SPS A. Lasheen slides Measurements of the 200 MHz induced voltage and comparison with simulations M. Schwarz slides Update on the 628 MHz HOM damping N. Nasresfahani, P. Kramer slides
5 Meeting on 15th June 2017 at 15:30 in 864-2B-14 (JBA) minutes Minutes and actions E. Shaposnikova Space charge studies with protons for ions H. Bartosik slides Beam losses in simulations and recent MDs M. Schwarz slides Evaluation of the optimized 628 MHz coupler N. Nasresfahani, P. Kramer s1,s2 Review of the SPS impedance model T. Kaltenbacher slides
4 Meeting on 11th May 2017 at 15:30 in 864-2B-14 (JBA) minutes Minutes and actions E. Shaposnikova Beam losses in coast from recent SPS MDs F. Antoniou slides Update on simulations of capture losses in the SPS M. Schwarz slides Transverse impedance simulations and influence of 938 MHz-couplers, bead-pull results P. Kramer slides 200 MHz TWC transverse impedance calculations (from single-cell) and corresponding considerations N. Nasresfahani slides
3 Meeting on 6th April 2017 at 15:30 in 864-2B-14 (JBA) minutes Minutes and actions E. Shaposnikova First simulations of capture losses in the SPS J. Repond slides PS bunch capture with transient beam loading in SPS A. Lasheen slides Possible modifications of 630 MHz HOM damping N. Nasresfahani slides Update on transverse stability studies for the 200 MHz cavity HOM D. Amorim slides Priorities of the SPS MDs in 2017 H. Bartosik slides
2 Meeting on 2nd March 2017 at 15:30 in 864-2B-14 (JBA) minutes Follow-up of new design of vacuum flange shielding C. Vollinger slides Beam stability after LS2 and 630 MHz HOM J. Repond slides Requirements for transverse HOM damping in 200 MHz TWC D. Amorim, N. Biancacci slides Discussion of the SPS MDs in 2017 H. Bartosik s1,s2
1 Meeting on 2nd February 2017 at 15:30 in 864-2B-14 (JBA) minutes Outcome of Chamonix workshop E. Shaposhnikova Status of vacuum flange shielding C. Vollinger slides Transverse HOM damping in 200 MHz TWC P. Kramer, J. Repond slides Update on the SPS impedance model T. Kaltenbacher slides
10 Meeting on 1 December 2016 at 15:30 in 864-2B-14 (JBA) minutes Models of LLRF and beam loading measurements P. Baudrenghien/T. Mastoridis s1, s2 Beam loading for 8b4e vs nominal 25 ns -- MD data T. Bohl slides Losses for 8b4e vs nominal 25 ns H. Bartosik slides EOY talk E. Shaposhnikova slides
9 Meeting on 3 November 2016 at 15:30 in 864-2B-14 (JBA) minutes Introduction E. Shaposhnikova slides Beam loading measurements T. Bohl slides Measured effect of FF/FB/LD/PL on flat bottom losses H. Bartosik slides Simulations of FB and FF on SPS flat top/bottom T. Argyropoulos slides TWC 200 MHz impedance in BLonD and its effect on beam stability J. Repond slides
8 Meeting on 25 August 2016 at 15:30 in 864-2B-14 (JBA) minutes Update on the SPS impedance model T. Kaltenbacher slides HOMs in the 200 MHz RF system P. Kramer slides Studies of LHC beam losses at PS/SPS transfer, update H. Bartosik slides
7 Meeting on 4 August 2016 at 15:30 in 864-2B-14 (JBA) minutes Missing impedance from synchrotron frequency shift A. Lasheen slides Latest results of ramp simulations for 72 bunches J. Repond slides Results of recent MDs on HBWB damping system K. S. Bruce Li slides Short summary of previous studies of PS/SPS transfer H. Timko slides Studies of LHC beam losses at PS/SPS transfer H. Bartosik slides
6 Meeting on 30 June 2016 at 15:30 in 864-2B-14 (JBA) minutes Synchrotron frequency shift: measurements vs simulations A. Lasheen slides First results of ramp simulations for 72 bunches J. Repond slides
5 Meeting on 26 May 2016 at 15:30 in 864-2B-14 (JBA) minutes Follow up of soft clamps production and testing T. Kaltenbacher slides Impact of remanent fields on SPS chromaticity H. Bartosik slides
4 Meeting on 21 April 2016 at 15:30 in 864-2B-14 (JBA) minutes Improved method for the measurements and simulations of the SPS nonlinear optics H. Bartosik slides Longitudinal instability thresholds on the SPS flat top J. Repond slides Update on impedance of vacuum flanges T. Kaltenbacher slides
3 Meeting on 17 March 2016 at 15:30 in 864-2B-14 (JBA) minutes Beam simulations for situation after the RF upgrade A. Lasheen slides Measurements and EM simulations for vacuum flanges T. Kaltenbacher slides Update on studies of the 200 MHz TW RF system T. Roggen slides
2 Meeting on 18 February 2016 at 15:30 in 864-2B-14 (JBA) Update on studies of the 200 MHz HOMs T. Roggen slides Beam measurements and simulations for the last ion run (longitudinal plane) A. Lasheen slides Preliminary results of simulations with 72 proton bunches A. Lasheen slides
1 Meeting on 7 January 2016 at 15:30 in 864-2B-14 (JBA) minutes Transverse damper performance during 2015 ion operation G. Kotzian slides Injection kicker rise time F. Velotti slides Summary of the 2015 ion run (longitudinal plane) T. Bohl slides
9 Meeting on 3 December 2015 at 15:30 in 864-2B-14 (JBA) minutes The SPS transverse damper: status 2015, plans 2016 G. Kotzian slides Simulations of the HOM damping for the 200 MHz TW RF system Y. Shashkov slides Summary of 2015 and outlook for 2016 E. Shaposhnikova slides 8 Meeting on 29 October 2015 at 15:30 in 864-2B-14 (JBA) minutes Summary of the LIU/HL-LHC day E. Shaposhnikova slides Studies on the synchrotron frequency shift A. Lasheen slides Effect of the HOMs damping A. Lasheen slides Update on space charge studies H. Bartosik slides 7 Meeting on 17 September 2015 at 15:30 in 864-2B-14 (JBA) minutes Updated on longitudinal instability studies A. Lasheen slides Recent space charge MDs H. Bartosik slides Analysis of un-captured beam loss on flat bottom H. Bartosik/M. Schenk slides 6 Meeting on 06 August 2015 at 15:30 in 864-2B-14 (JBA) minutes Single-bunch instability during ramp A. Lasheen slides Simulations of single-bunch instability on flat top E. Radvilas slides Plans for space charge studies H. Bartosik slides Impedance of the 800 MHz RF system D. Bazyl slides Update on the SPS impedance model J.E. Varela slides 5 Meeting on 18 June 2015 at 15:30 in 864-2B-14 (JBA) minutes Multi-bunch measurements and simulations T. Argyropoulos slides Overview of the last scrubbing runs H. Bartosik slides 4 Meeting on 21 May 2015 at 15:30 in 864-2B-14 (JBA) minutes Multi-bunch measurements and simulations T. Argyropoulos slides Overview of 2015 MD results in transverse plane/ scrubbing run K.Li slides Update on design of VF shielding J.E. Varela slides Summary of discussion on enamel flanges/isolation need E. Shaposhnikova slides
3 Meeting on 16 April 2015 at 15:30 in 864-2B-14 (JBA) minutes Impedance measurements of the 200 MHz TWC T. Roggen slides Discussion on enamel flanges need E. Shaposhnikova/J. E. Varela Campelo/BI Report from the SPS scrubbing run H. Bartosik Update on BLonD development A. Lasheen slides
2 Meeting on 12 March 2015 at 15:30 in 864-2B-14 (JBA) minutes Long bunch simulations with the latest impedance model A. Lasheen slides Progress on the Vacuum Flange Shielding Studies J. Perez/J. E. Varela Campelo slides Preliminary Results on the Impedance Characterization of the 200MHz TWCs J. E. Varela Campelo slides Impact of the proposed modifications of the flanges on the transverse impedance C. Zannini slides Discussion on the modification of the TPST to be installed in the SPS S. Persichelli slides
1 Meeting on 29 January 2015 at 15:30 in 864-2B-14 (JBA) minutes Survey of the SPS vacuum flanges during x-mas stop J. A. Ferreira Somoza slides Update of the SPS impedance model J. E. Varela Campelo slides New features of the SPS BQM G. Papotti slides First results of instability simulations during ramp T. Argyropoulos slides Planning of the SPS MDs for 2015 H. Bartosik slides
10 Meeting on 11 December 2014 at 15:30 in 864-2B-14 (JBA) minutes Longitudinal space charge on the SPS flat bottom A. Lasheen slides New contributions to the SPS impedance budget J. Varela Campelo slides Latest news from the SPS MDs H. Bartosik slides Observations of transverse instability with damper G. Kotzian slides End-of-year talk E. Shaposhnikova slides End-of-year celebration everybody
9 Meeting on 6 November 2014 at 15:30 in 864-2B-14 (JBA) minutes Current experience with 25 ns LHC beam H. Bartosik slides Microwave instability in a single and a double RF system T. Argyropoulos slides Synchrotron frequency shift as a probe of the SPS impedance A. Lasheen slides
8 Meeting on 9 October 2014 at 15:30 in 864-2B-14 (JBA) minutes Benchmarking the SPS impedance model: Headtail growth rates C. Zannini slides Update on reduction of the SPS vacuum flanges impedance J. Varela Campelo slides Short update on the SPS MD planning G. Rumolo slides
7 Meeting on 4 September 2014 at 15:30 in 864-2B-14 (JBA) minutes Studies for an SPS optics with intermediate gamma transition H. Bartosik slides Single- and multi- bunch instabilities on the SPS flat top T. Argyropoulos slides Longitudinal Impedance of the SPS Shielded Pumping Ports J. Ghini slides Possible reduction of the SPS vacuum flanges impedance J. Varela Campelo slides Preliminary SPS MD planning H. Bartosik/G. Rumolo slides
6 Meeting on 31 July 2014 at 15:30 in 864-2B-14 (JBA) minutes SPS impedance model update (unshielded pumping ports and other) J. Varela Campelo slides
5 Meeting on 26 June 2014 at 15:30 in 864-2B-14 (JBA) minutes SPS MDs in 2014 and discussion on their prioritisation G. Rumolo, H. Bartosik slides Latest longitudinal simulations with SPS impedance model A. Lasheen, T. Argyropoulos slides
4 Meeting on 22 May 2014 at 15:30 in 864-2B-14 (JBA) minutes Update on the SPS impedance model and results of the recent SPS survey J. Varela slides First ideas on possible SPS layout inspection M . Taborelli/J.A. Somoza Update on impedance of the WS and highlights from the Erice workshop B. Salvant slides Progress with longitudinal simulations D. Quartullo et al.
3 Meeting on 27 March 2014 at 15:30 in 864-2B-14 (JBA) minutes Update on kicker impedance of WB transverse FB C. Zannini slides Update on the SPS longitudinal impedance J. Varela slides Simulations of the synchrotron frequency shift A. Lasheen slides
2 Meeting on 27 February 2014 at 15:30 in 864-2B-14 (JBA) minutes Summary for ions slip stacking T. Argyropoulos slides Analysis of 2012 data from LHC operational beams T. Bohl slides Update on SPS transverse impedance C. Zannini slides Impedance of the WS tank B. Salvant slides
1 Meeting on 30 January 2014 at 15:30 in 864-2B-14 (JBA) minutes Momentum slip stacking for ions T. Argyropoulos slides ZS impedance measurements H. Day et al. slides Analysis of schemes for doublet production J. E. Muller slides
9 Meeting on 12 December 2013 at 15:30 in 864-2B-14 (JBA) minutes TMC instability H. Bartosik slides Summary for 2013 E. Shaposhnikova slides End of year drink everybody
8 Meeting on 24 October 2013 at 15:30 in 864-2B-14 (JBA) minutes Short update on the SPS vacuum flanges J. E. Varela slides Latest results of simulations of the SPS impedance H. Timko slides SPS impedance reduction (discussion) E. Shaposhnikova slides
7 Meeting on 19 September 2013 at 15:30 in 864-2B-14 (JBA) minutes Follow-up of the SPS vacuum flanges: measurements and simulations J. E. Varela slides Latest results of simulations with HEADTAIL H. Timko slides Update on the SPS impedance: ZS PMs and BPMs B. Salvant slides
6 Meeting on 8 August 2013 at 15:30 in 864-2B-14 (JBA) minutes First results of simulations of SPS instabilities with HEADTAIL H. Timko slides Follow-up of the SPS vacuum flanges: measurements and simulations J. E. Varela/F. Caspers slides
tableUpdate on the SPS impedance: ZS PMs and BPMs B. Salvant slides Microwave instability during the ramp E. Shaposhnikova slides
5 Meeting on 11 July 2013 at 15:30 in 864-2B-14 (JBA) minutes Simulations for the high-bandwidth feedback system in the SPS K. Li slides Threshold for microwave instability of the LHC beam T. Argyropoulos slides Follow-up of the SPS vacuum flanges: measurements and simulations J. E. Varela/F. Caspers slides Update on the SPS impedance: new wire scanner B. Salvant slides SPS intensity limitation without the 200 MHz upgrade E. Shaposhnikova slides 4 Meeting on 30 May 2013 at 15:30 in 864-2B-14 (JBA) minutes Bunch lengthening and reactive impedance in the SPS H. Timko slides Microwave instability due to the 1.4 GHz impedance? T. Argyropoulos slides Update on the SPS vacuum flanges: measurements in the lab and simulations J. E. Varela/F. Caspers slides 3 Meeting on 25 April 2013 at 15:30 in 864-2B-14 (JBA) minutes Space charge effects in the SPS H. Bartosik slides Discussion of longitudinal impedance of vacuum flanges in SPS
- Parameters for 1.4 GHz peak from beam measurements
- Reminder of numerical simulations for vacuum flanges
- Considerations for the low frequency part and PS/PSB
T. Argyropoulos
B. Salvant
F. Caspers
slides
slides
slides2 Meeting on 21 March 2013 at 15:30 in 864-2B-14 (JBA) minutes Microwave transmission measurements with high intensity 25ns beam S. Federmann slides SPS achieved performance and beam parameters in 2012 H. Bartosik slides Present status of the SPS longitudinal impedance model C. Zannini,
E. Shaposhnikovaslides 1 Meeting on 7 February 2013 at 15:30 in 864-2B-14 (JBA) minutes Results of microwave transmission measurements F. Caspers/S. Federmann slides High bandwidth feedback - MDs with intra bunch motion W. Hofle slides SPS high bandwith feedback progress report J. Fox slides Reference measurements of the longitudinal impedance T. Argyropoulos slides
12 Meeting on 13 December 2012 at 15:30 in 864-2B-14 (JBA) minutes RF measurements during floating MD in week 45 T. Argyropoulos slides Illustration of satellite bunches on the longitudinal bunch profile of the 25ns beam T. Bohl MD priorities for 2013 E. Shaposhnikova
H. Bartosikslides
slides11 Meeting on 22 November 2012 at 15:30 in 864-2B-14 (JBA) minutes First tests with a 25 ns doublet beam at the SPS injection G. Iadarola slides Results of MDs with high intensity 25 ns beam
T. Argyropoulos
H. Bartosik
slides
slidesHigh intensity single bunches H. Timko slides 10 Meeting on 25 October 2012 at 15:30 in 864-2B-14 (JBA) minutes HOMs in 200 MHz and 800 MHz TW RF systems B. Salvant slides Single bunch instabilities in a double RF system T. Argyropoulos slides Update on the 25 ns beam T. Argyropoulos slides 9 Meeting on 27 September 2012 at 15:30 in 864-2B-14 (JBA) minutes First results of the SPS MD in W39 with 25 ns beam in Q20 optics J. E. Muller slides Beam quality of the 50 ns LHC beam with Q20 T. Bohl slides Update on Q20 optics for 25 ns LHC beam H. Bartosik Review of longitudinal instabilities in the SPS E. Shaposhnikova slides MD priorities for 2012 8 Meeting on 30 August 2012 at 15:30 in 864-2B-14 (JBA) minutes IBS and Touschek studies for ion beam in the SPS F. Antoniou slides Next steps with Q20 optics H. Bartosik slides Summary of the SPS e-cloud beam studies G. Iadarola slides Results of microwave measurements S. Federmann slides SPS impedance at 1.4 GHz T. Argyropoulos slides 7 Meeting on 2 August 2012 at 15:30 in 864-2B-14 (JBA) minutes MKE heating with and without serigraphy C. Zannini slides Results of dedicated MD W26: 50 ns beam stability
T. Bohl
slides First results of floating MD W30 (50 ns beam in Q20) T. Argyropoulos slides Summary of beam observations with 25 ns beam H. Bartosik slides Update on the PS-SPS transfer studies H. Timko slides 6 Meeting on 21 June 2012 at 15:30 in 864-2B-14 (JBA) minutes Mw measurements during the scrubbing run S. Federmann/M. Holz slides Issues with LHC beam quality in the SPS T. Bohl slides Short summary of the latest SPS MDs (parallel) H. Bartosik
H. Timko
J. E. Muller
slides
slidesPlanning of the dedicated SPS MD in W26 G. Rumolo MD planning 5 Meeting on 31 May 2012 at 15:30 in 864-2B-14 (JBA) minutes Update on the PS-SPS transfer studies H. Timko slides Results of MD W17 H. Bartosik
T. Argyropoulosslides
slides
Open action: Q20 optics for ions Y. Papaphilippou slides Bunch length at the SPS extraction E. Shaposhnikova slides 4 Meeting on 26 April 2012 at 15:30 in 864-2B-14 (JBA) minutes SPS impedance model
SPS transverse impedance measurements
ZS modelC. Zannini
N. Biancacci
B. Salvantslides
slidesShort summary of beam observations during the scrubbing run
unbunched beamH. Bartosik/G. Iadarola
T. Bohlslides
Note
movie
movie2
movie3
movie4Preliminary summary of SPS MD w17 H. Bartosik/ B. Salvant
E. Shaposhnikova3 Meeting on 22 March 2012 at 15:30 in 864-2B-14 (JBA) minutes Open action: Q20 for the CNGS beam T.Bohl slides Update on PS-SPS transfer simulations H. Timko slides Plans for the SPS impedance model evaluation in 2012 B.Salvant
E.Shaposhnikovaslides
slidesLatest news on scrubbing run preparation G. Iadarola/H.Bartosik schedule 2 Meeting on 23 February 2012 at 15:30 in 864-2B-14 (JBA) minutes Outcome from Chamonix workshop E. Shaposhnikova slides Shutdown changes and status of mw measurements in the ring H. Neupert,
F. CaspersScrubbing run planning H. Bartosik/
G. Iadarolaslides 1 Meeting on 26 January 2012 at 15:30 in 864-2B-14 (JBA) minutes Planning of scrubbing run and SPS MDs in 2012 G. Rumolo slides 2012 scrubbing run: collecting ideas H. Bartosik/
G. Iadarolaslides Open action: Q20 optics for FT/CNGS beam E. Shaposhnikova slides
12 Meeting on 19 December 2011 at 16:00 in 864-2B-14 (JBA) minutes Results of the last MD on longitudinal PS-SPS transfer H. Damerau slides Update on simulations of longitudinal PS-SPS beam transfer H. Timko slides Optimisation of bunch rotation in the PS S. Hancock slides Update on space charge in Q20&Q26 optics H. Bartosik slides Review of 2011 studies and priorities for 2012 E. Shaposhnikova slides 11 Meeting on 24 November 2011 at 15:30 in 864-2B-14 (JBA) minutes Recent MD results with 25 ns and 50 ns LHC beam:
- transverse plane
- longitudinal plane
H. Bartosik
T. Argyropoulos
slides
slidesPS-SPS transfer studies H. Timko slides Review of LIU-SPS specifications for BI B. Salvant slides 10 Meeting on 13 October 2011 at 15:30 in 864-2B-14 (JBA) minutes LIU-SPS WG on Beam Loss, Protection and Transfer Lines M. Meddahi slides E-cloud measurements by microwave transmission S. Federmann slides E-cloud effects in the SPS with nominal and low gt optics H. Bartosik slides Different strategies of electron cloud enhancement G. Iadarola slides MD requests for 2012 E. Shaposhnikova slides,
requests9 Meeting on 15 September 2011 at 15:30 in 864-2B-14 (JBA) minutes Update on transverse emittance measurements A. Guerrero slides Results of the SPS long MD week 35 T. Bohl Note News on impedance of MKP B. Salvant slides Results for e-cloud from the recent MDs H. Neupert slides WUs and coming reviews E. Shaposhnikova WU, reviews Review of open actions B. Salvant list of actions 8 Meeting on 11 August 2011 at 15:30 in 864-2B-14 (JBA) minutes Transfer of LHC beams from PS to SPS H. Damerau slides Multipacting measurements M. Holz slides SPS impedance work in progress B. Salvant slides SPS MD results W. Hofle slides Next SPS MD planning G. Rumolo slides 7 Meeting on 14 July 2011 at 15:30 in 864-2B-14 (JBA) minutes Preliminary results of MD week 27:
transverse emiittance measurements
longitudinal parameters
Q20 optics
G. Rumolo/B. Salvant
T. Argyropoulos/T. Bohl
H. Bartosik
slides
slidesESME simulations of single bunch stability in the SPS C. Bhat slides 6 Meeting on 16 June 2011 at 16:00 in 864-2B-14 (JBA) minutes Tune scans and emittance measurements H. Bartosik slides Possible increase of bunch intensity in the SPS E. Shaposhnikova slides Results for PS-SPS transfer studies T. Bohl slides 5 Meeting on 12 May 2011 at 16:00 in 864-2B-14 (JBA) minutes Short and preliminary summary of MD w19 E. Shaposhnikova slides Preliminary results and ideas for the SPS upgrade MDs on LHC beams in 2011 G. Rumolo slides Update on impedance of enamel flanges in the SPS B. Salvant slides Effect of the working point on the resistive wall multi-bunch instabilities in the SPS N. Mounet slides Preliminary results of the MD on transverse emittances for high intensity in the SPS
low gamma transition opticsH. Bartosik slides SPS MD W19 J. E. Muller slides 4 Meeting on 14 April 2011 at 15:30 in 864-2B-14 (JBA) minutes LIU beam parameters B. Goddard slides Low harmonic RF system for PS-SPS beam transfer in the SPS? E. Shaposhnikova slides PS logbook entry S. Hancock slides Space charge (WP) analysis H. Bartosik for G. Franchetti slides Transverse coupled bunch instabilities and damper upgrade W. Hofle slides Preliminary results of the multipacting measurements M. Holz slides Highlights from PAC'11 P. Costa Pinto 3 Meeting on 17 March 2011 at 15:30 in 864-2B-14 (JBA) minutes LIU-SPS organisation B. Goddard slides Resistive-wall instability in the SPS N. Mounet slides Update on BPM impedance B. Salvant slides AOB 2 Meeting on 17 February 2011 at 15:30 in 864-2B-14 (JBA) minutes News on coatings M. Taborelli slides Outcome of Chamonix workshop and new structure of the SG E. Shaposhnikova slides News from Headtail simulations for single bunches in the SPS B. Salvant slides Observation of transverse instability in SPS with 50 ns bunches B. Salvant/G. Rumolo slides 1 Meeting on 21 January 2011 at 15:30 in 864-2B-14 (JBA) minutes Transverse emittances now and after SPS upgrades (preparation for Chamonix) E. Shaposhnikova slides SPS MD planning for 2011 G. Rumolo slides 12 Meeting on 16 December 2010 at 15:30 in 864-2B-14 (JBA) minutes Latest MD results and SD plans M. Taborelli slides RF transmission measurements of e-cloud S. Federmann slides New results on a low transition energy in the SPS H. Bartosik slides RF issues for a low transition energy
MD studies/requests for 2011E. Shaposhnikova slides E-cloud simulations for SPS (update) G. Rumolo et al. slides End-of-year celebration everybody 11 Meeting on 18 November 2010 at 15:30 in 864-2B-14 (JBA) minutes Results of MD week 42 - Pressure and e-cloud signals H. Neupert slides - Beam observations E. Shaposhnikova slides Preliminary MD results for a low transition energy in the SPS H. Bartosik slides 10 Meeting on 21 October 2010 at 15:30 in 864-2B-14 (JBA) minutes Project LIU R. Garoby slides MD results for ultimate intensity single bunch B. Salvant slides Highlights from workshop ECLOUD10 C. Yin Vallgren slides News on coatings and coating systems P. Costa Pinto slides 9 Meeting on 23 September 2010 at 15:30 in 864-2B-14 (JBA) minutes Heavy ions desorption yields of amorphous carbon bombarded with 4.2 MeV/u lead ions at LINAC3 E. Mahner, D. Holzer slides Summary of ageing (increase of SEY) observations C. Yin Vallgren slides Summary of the SPS MD run week 35 C. Yin Vallgren slides Pressure data from the SPS MD w 35 H. Neupert, M. Taborelli slides 8 Meeting on 26 August 2010 at 15:30 in 864-2B-14 (JBA) minutes Coatings and coating systems P. Costa Pinto slides Preliminary summary of single bunch MD on 5-6th August E.Shaposhnikova/ B. Salvant slides New set-up for RF transmission measurements S. Federmann slides Strategy for installation of coated magnets during TS in W35 J. Bauche slides Planning of the SPS MD W35 G. Rumolo 7 Meeting on 29 July 2010 at 15:30 in 864-2B-14 (JBA) minutes Possible reduction of gamma transition in the SPS Y. Papaphilippou slides Update of MD activity for high frequency SPS transverse feedback W. Hofle slides Recent results on coatings and coating systems M. Taborelli slides News on TMCI in the SPS B. Salvant slides 6 Meeting on 24 June 2010 at 15:30 in 864-2B-14 (JBA) minutes Highlights from IPAC'10 (Kyoto) IPAC'10 participants Recent results on coating M.Taborelli slides Planning of the MBB insertion J.Bauche slides Results of MD W22 M. Barnes
E. Shaposhnikovaslides,
slidesTMCI in the SPS B. Salvant slides 5 Meeting on 20 May 2010 at 15:30 in 864-2B-14 (JBA) minutes Observations and measurements on the ZS during the SPS MD J. Borburgh slides Heating and outgassing of SPS kickers: MD week 17 M. Barnes slides Recent results on coatings and coating systems M. Taborelli slides Planning of the long MD W22 E. Metral MDW22 4 Meeting on 22 April 2010 at 15:30 in 864-2B-14 (JBA) - joint with SPSU TF minutes Preliminary proposal for the SPS upgrade planning V. Mertens slides Recent results on coatings M. Taborelli slides E-cloud estimate from microwave measurements in 2009 S. Federmann slides E-cloud build up simulations for ZS G. Rumolo slides A new SPS extraction kicker? B. Goddard slides Planning of the scrubbing run/MD W17 E. Metral schedule
MDW17
slides3 Meeting on 25 March 2010 at 15:30 in 864-2B-14 (JBA) - joint with SPSU TF minutes Collimation for high intensity LHC beams in SPS (20') R. Assmann slides SPS upgrade S. Myers TMCI threshold for LHC bunches in the SPS (20') B. Salvant/E. Metral slides Latest results on coatings (15') M. Taborelli slides Radiation peak in 515 (5') K. Cornelis 2 Meeting on 25 February 2010 at 15:30 in 864-2B-14 (JBA) minutes Results from samples extracted during SPS shutdown M. Taborelli slides MD studies for SPS upgrade in 2010 E. Shaposhnikova summary 1 Meeting on 21 January 2010 at 15:30 in 864-2B-14 (JBA) minutes The SPS RF system modification E. Shaposhnikova slides Present situation for SPS installation for e-cloud M. Taborelli slides
13 Meeting on 15 December 2009 at 16:00 in 864-2B-14 (JBA) minutes Beam diagnostics for future SPS beams (ultimate and upgrade) J. J. Gras slides Results of MD week 45 S. Federmann slides C. Yin Vallgren slides Proposal for the e-cloud experimental set-up in 2010 M. Taborelli slides 12 Meeting on 17 November 2009 at 15:30 in 864-2B-14 (JBA) minutes Transverse FB for single bunch instabilities W. Hofle slides,mv1,mv2,
mv3,mv4Results of MD week 45 M. Taborelli
slides Vacuum performance of the C coating P. Chiggiato slides 11 Meeting on 27 October 2009 at 15:30 in 864-2B-14 (JBA) minutes Summary of AEC'09 workshop M. Taborelli slides SPSU budget E. Shaposhnikova Planning of MD week 45 and request for 2010 E. Metral/ E. Shaposhnikova Preparation of microwave transmission e-cloud measurements in the CPS S. Federmannn slides 10 Meeting on 29 September 2009 at 15:30 in 864-2B-14 (JBA) minutes Results from the SPS MD on September 15 (week 38) M. Taborelli slides e-cloud activities at Cornell S. Calatroni, G. Rumolo slides Planning of MD week 41 E. Shaposhnikova Preparation of anti e-cloud coating workshop AEC'09 (12-13 October 2009) F. Zimmermann slides 9 Meeting on 8 September 2009 at 15:30 in 864-2B-14 (JBA) minutes Results from the SPS MD on August 12 (week 33)
Effect of the holes in the e-cloud strip-line monitor
Traces of e-cloud in the SPS magnets and pumping ports
Planning of MD week 38
M. Taborelli
F. Caspers
G. Rumolo/G. Arduini
K. Cornelis
E. Metral, E. Shaposhnikova
slides
slides
slides
slides8 Meeting on 4 August 2009 at 15:30 in 864-2B-14 (JBA) minutes Studies of the SPS internal dump (TIDGV) A.Stadler slides Results from the SPS MD on July 15 (week 29) microwave transmission measurements D. Seebacher slides pressure measurements M. Taborelli slides 7 Meeting on 30 June 2009 at 15:30 in 864-JBA minutes SPS vacuum system modification G. Vandoni slides Results from the SPS MD on June 15-17 (scrubbing run):
(1) e-cloud in liners and vacuum measurements
C. Yin Vallgren
slides(2) microwave measurements S. Federmann, D. Seebacher slides (3) e-cloud instability growth rates and spectra R. De Maria slides
6 MD planning meeting on 11 June 2009 at 9:30 in 6-2-004 MD planning for 15-18 June 2009 E. Metral MD planning SPS e-cloud transmission experiment D. Seebacher slides 5 Meeting on 19 May 2009 at 15:30 in 864-JBA minutes Update on Kicker Magnet Impedance in the SPS M. Barnes slides Follow up on SPS transverse impedance B. Salvant slides Resources needed for SPS coating J. Bauche slides Progress report on coatings
Installation to degrease the SPS magnets vacuum chambersM. Taborelli slides,
slidesHighlights from PAC09 E. Shaposhnikova
4 Meeting on 21 April 2009 at 15:30 in 864-JBA minutes Proposal for future FT beam from the PS2 M. Benedikt slides Progress report on coatings M. Taborelli slides 3 Meeting on 24 March 2009 at 16:00 in 864-JBA minutes Results of SPS magnets coating P. Costa Pinto slides, video What was installed in the SPS M. Taborelli slides e-cloud MDs in 2009 E.Shaposhnikova Update on measurement of NEG and a-C layer impedance D. Seebacher slides
2 Meeting on 17 February 2009 at 15:30 in 864-JBA minutes Towards the coating of 3 MBB dipoles. Status report S. Calatroni slides Measurement of electromagnetic properties of NEG coating in the microwave range D. Seebacher/ F. Caspers slides
1 Meeting on 27 January 2009 at 15:30 in 864-JBA minutes Progress report on coatings for SPS-U S. Calatroni slides Carbon coating - status of SPS installations G. Vandoni slides SPS shutdown planning N. Gilbert slide News on electromagnetic roughness F. Caspers slide
12 Meeting on 9 December 2008 at 15:30 in 864-JBA minutes Electromagnetic roughness F. Caspers slidesI,sII,sIII Update on magnet coating N. Gilbert/J. Bauche slide Progress on coating system M. Taborelli slides Open actions from 2008 E. Shaposhnikova slides 11 Meeting on 18 November 2008 at 15:30 in 864-JBA
minutes Coating of the main SPS magnet vacuum chambers: alternative scenarios, logistics J. Bauche (AT) slides Progress report on coating M. Taborelli slides MKDV vacuum behaviour with LHC beams K. Cornelis slides Activities for 2008/2009 shutdown 10
Meeting on 14 October 2008 at 15:30 in 864-JBA
Preliminary results from the SPS MD W.41
C. Yin Vallgren
Progress report on coatings
M. Taborelli
Progress report on enamel electrodes
Highlights from MULCOPIM08
F. Caspers, E. Mahner
F. Zimmermann
9
Meeting on 9 September 2008 at 15:30 in 864-JBA
Experience with production of coatings with low SEY, effects of venting and scrubbing
N. Hilleret (AT/VAC)
Progress report on coatings
M. Taborelli
8
Meeting on 5 August 2008 at 15:30 in 864-JBA
Transverse feedback to cure electron-cloud induced single bunch vertical instability. Proposed studies and outlook
W. Hofle (AB/RF)
Progress report on coatings and grooves
M. Taborelli
7
Meeting on 11 July 2008 at 14:15 in 864-JBA
Status of the SPS beam dump
Y. Kadi (AB/ATB)
Status of the SPS beam dump kickers
M. Barnes (AB//BT)
Preliminary results from the SPS long MD week 28
C. Yin Vallgren
6
Meeting on 1 July 2008 at 15:30 in 864-JBA
Progress report on coatings and grooves
M. Taborelli
First results from the SPS scrubbing run
C. Yin Vallgren
G. Arduini
F. Caspers
5
Meeting on 22 May 2008 at 14:00 in 6-2-002
Preparation for the e-cloud measurements during the scrubbing run
G. Arduini
4
Meeting on 13 May 2008 at 15:30 in 864-JBA
Present status and future plans for the MKE kicker magnets
M. Barnes (AT/BT)
Progress report on coatings
M. Taborelli
3
Meeting on 15 April 2008 at 15:30 in 864-JBA
Preliminary programme of measurements for the 2008 tests in the SPS
F. Caspers, E. Mahner
Progress on coatings and grooves
M. Taborelli
SPSU budget for 2008
E. Shaposhnikova
2
Meeting on 11 March 2008 at 15:30 in 864-JBA
MD plans for e-cloud studies in 2008
G. Rumolo
Progress report for the SPS e-cloud tests
M. Taborelli
F. Caspers/E. Mahner
E-cloud studies at SLAC and grooves for the SPS
M. Pivi (SLAC)
1
Meeting on 5 February 2008 at 15:30 in 864-JBA
Subjects to be treated in 2008
E. Shaposhnikova
Progress report for the SPS e-cloud tests
G. Arduini
B. Hervist
M. Taborelli
F. Caspers
11
Meeting on 18 December 2007 at 16:00 in 864-JBA
Results of the last e-cloud MD in the SPS in 2007
G. Rumolo
Progress report for the SPS e-cloud tests
P. Chiggiato
K. Cornelis
M. Jimenez
10
US-CERN online meeting on 21 November 2007 at 18:00 in 874-1-R018
SPS grooves - simulation
SPS grooves - fabrication
9
Meeting on 20 November 2007 at 16:00 in 864-JBA
Dependence of the e-cloud build up on bunch current and spacing
G. Rumolo
Thin film coatings for SPS-U
P. Chiggiato
Beam loss and radiation in the SPS for higher intensities and injection energy
G. Arduini
8
Meeting on 23 October 2007 at 16:00 in 864-JBA
Programme of the e-cloud measurements in the SPS in 2008:
different surface treatment
grooves
P. Chiggiato
G. Arduini7
Meeting on 18 September 2007 at 16:00 in 864-JBA
News from around the table
6
Meeting on 21 August 2007 at 16:00 in 864-JBA
The SPS beams from PS2
M. Benedikt
The SPS impedance budget
E. Metral
5
Meeting on 24 July 2007 at 16:00 in 864-JBA
Beam for LHC updrade (part I). Resources for the SPS upgrade (part II)
E. Shaposhnikova
Preliminary simulation results for sputtering of the SPS vacuum chamber
S. Calatroni
4
Meeting on 5 July 2007 at 16:00 in 6-2-004
Preliminary results of the e-cloud instability MDs at the SPS
G. Rumolo
SPS limitations to injection energy and intensity
K. Cornelis
FT/CNGS beam in the SPS now and with PS2
E. Shaposhnikova
3
Meeting on 1 June 2007
Talks at BEAM'07 Workshop and a.o.b.
E. Shaposhnikova
Scenarios for LHC upgrade and their consequences for the SPS
F. Zimmermann
Experimental set-up for e-cloud measurements in the SPS
M. Jimenez
Update on code-code benchmark
G. Rumolo
2
Meeting on 10 May 2007
PAF Study Team on SPS Ugrade - SPSU
E. Shaposhnikova
Reactive sputtering
S. Calatroni
Surface characterization and SEY measurements
M. Taborelli
A Retrofittable Electron Cloud Suppression Insert for the SPS
F. Caspers,
T. Kroyer
Dependence of the e-cloud Instability threshold on energy at the SPS
G. Rumolo
1
Meeting on 21 March 2007
Electron cloud in the SPS and present limitations for the LHC beam
G. Arduini
Motivation for the e-coud studies for the future SPS with PS2
G. Rumolo
Possible solutions for the e-cloud problem
F. Zimmermann
Possible surface modifications to reduce SEY
P. Chiggiato
last updated on Tuesday, March 26, 2013