2013

- 99th meeting (18-12-13): LHC single-bunch instabilities observed in 2012: simulations vs. measurements (DA). Special afternoon meeting with Joel Chaskalovic to discuss "Theoretical and Numerical Approaches for Vlasov-Maxwell Equations" and data mining: scientific collaboration with CERN (Joel Chaskalovic); short discussion about space-charge (FS); short discussion about instabilities (NM); short discussion about beam-beam (TP); short discussion about e-cloud (GR).

- 98th meeting (11-12-13): PSB LIU requests (Elena Benedetto). Status of the PSB impedance model (CZ) and preliminary analysis of the PSB instability measurements of January 2013 (NM). Status of Task 2.4 (EM).

- 97th meeting (04-12-13): (Rehearsal) talk before giving a talk outisde ICE / ABP => Do we have any? Discussion about material to be purchased for impedance measurements (OB and JosephK).

- 96th meeting (27-11-13): Brief reports of the 4 WGs (by the WG leader or replacement) => Plan, activities, deadlines, issues, etc.: BB, SC, EC, IMP.

- 95th meeting (06-11-13): cobra-HeadTail (Kevin Li).

- 94th meeting (23-10-13): RF quadrupole for Landau damping (Alexej Grudiev). Brief reports of the 4 WGs (by the WG leader or replacement) => Plan, activities, deadlines, issues, etc.: BB, SC, EC, IMP.

- 93rd meeting (02-10-13): Debriefing and follow-up of the LPL review (EM). Reflections on the LHC transverse instabilities during run I (Alexey Burov). Actions for the RLIUP workshop and the HL-LHC WP2 (EM) => several scenarios considered for RLIUP.

- 92nd meeting (11-09-13): Status of the work for the internal review on the LHC performance limitations during run I (on 25-26/09/2013) => All the speakers.

- 91st meeting (04-09-13): Status of the work for the internal review on the LHC performance limitations during run I (on 25-26/09/2013) => All the speakers. Brief reports of the 4 WGs (by the WG leader or replacement) => Plan, activities, deadlines, issues, etc.: BB, SC, EC, IMP.

- 90th meeting (28-08-13): PS TFB kicker (97) measurements (Guido Sterbini). Status of the work for the internal review on the LHC performance limitations during run I (on 25-26/09/2013) => All the speakers.

- 89th meeting (21-08-13): Recommendation for the SPS high-bandwidth kicker impedance (CZ). Benchmarking CST impedance simulations and application to the BGV project by Berengere Luthi. Status of the work for the internal review on the LHC performance limitations during run I (on 25-26/09/2013) => All the speakers. Brief reports of the 4 WGs (by the WG leader or replacement) => Plan, activities, deadlines, issues, etc.: BB, SC, EC, IMP.

- 88th meeting (14-08-13): Status of the work for the internal review on the LHC performance limitations during run I (on 25-26/09/2013) => All the speakers; Finalization of the programme and speakers (before being put on indico).

=> List of questions which were raised and that we should try and answer.

=> Indico site.

- 87th meeting (07-08-13): Brief reports of the 4 WGs (by the WG leader or replacement) => Plan, activities, deadlines, issues, etc.: BB, SC, EC, IMP. Status of the work for the internal review on the LHC performance limitations during run I (on 25-26/09/2013) => All the speakers. Effect of transverse impedance on luminosity measurement - v2 (EM)

- 86th meeting (03-07-13): Brief reports of the 4 WGs (by the WG leader or replacement) => Plan, activities, deadlines, issues, etc.: BB, SC, EC, IMP. Effect of transverse impedance on luminosity measurement (EM). LuminousRegion_2012vs2015-25ns-BCMS(blue: 2012 and red: 2015, with the presently assumed parameters). Beam divergence near IP and beam-beam effect (Jean-Bernard Jeanneret). Impedance considerations for the new HL-LHC triplet layout in IR1and5 (NM).

- 85th meeting (26-06-13): Separation in IP8 at injection (WH), Transverse impedance localization results from BNL (NB) and Main 2013 MD results / issues on collective effects in the PSB, PS and SPS (GR). AP forum from Lionel Prost (17/06/2013): Project X overview.

- 84th meeting (12-06-13): Simulations of the longitudinal coupled-bunch instability in the PS (Mauro Migliorati). RF considerations for the LHC TOTEM RPs (TOTEM collaboration week, CERN, 11/06/2013). Brief reports of the 4 WGs (by the WG leader or replacement) => Plan, activities, deadlines, issues, etc.: BB, SC, EC, IMP.

- 83rd meeting (05-06-13): Van der Meer Scans with offsets and beam-beam (TP et al.). Final discussion about the review being organised for September 25 and/or 26 on the LHC performance limitations during run I (EM). NC_IC-QQBI.29R5_5contactstripsProtrudingIntoAperture.png

- 82nd meeting (22-05-13): Van der Meer Scans with offsets and beam-beam (TP et al.) => Postponed to 05/06/13. Discussion about a working group to review and coordinate developments related to Data Analysis solutions (email from Chris Roderick).

- 81st meeting (15-05-13): Discussion about the review being organised for ~ mid September on the LHC performance limitations during run I (EM): First draft proposal, 2 actions for HL-LHC (EM).

- 80th meeting (24-04-13): Long range beam-beam contribution to stability diagrams (XB). Future accelerator neutrino activities: EUROnu conclusion, and then? (EW). Example case for the longitudinal RW impedance at low frequency: data used and picture (NM), How to try and improve the machine / complex performance when limited by space charge (EM, SC2013 workshop, 18/04/2013).

- 79th meeting (10-04-13): Instability observations in the LHC in special high-beta* runs (Helmut Burkhardt); Continuation of the discussion about the follow-up of the fills, data logging, post processing, etc.? FOR BOTH LHC AND ITS INJECTORS (everybody): some slides from BS-XB-TP-RdM for LHC.

- 78th meeting (03-04-13):  Follow-up of previous meeting (lessons from 2012 etc.) but focusing on the follow-up of the fills, data logging, post processing, etc. (everybody). Rehearsal of NM's talk for the 4th TLEP workshop (04-05/04/13). Some thoughts about longitudinal impedance (real part) values at low frequencies (FritzC).

- 77th meeting (27-03-13): Lessons from the 2012 run in preparation of the start-up in 2015 for both the LHC and the other machines => How can we prepare ourselves better?: responsibilities, communication outside ICE or ABP, quicker answers, follow-up of the fills, data logging, post processing, etc.? => Everybody. Reminder on the 2 Head-Tail mode numbers (EM). Hints that the TT2-111R has significant dielectric losses above 100 Mhz (measurement done with a 2.5 mm thick sample of TT2-111R by FC and CV): Picture 1 and 2.

- 76th meeting (27-02-13): Impedance localization update for PS, SPS and LHC: Part 2/2 (NB) and Review of the 2012 activities and current plan for the 2013 ones for SC (FS). Foam very efficient for mode suppresion in bench measuremets (FC). First electro-optical measurements in the ANKA storage ring (Anke-Susanne Muller): Picture.

- 75th meeting (13-02-13): Review of the 2012 activities and current plan for the 2013 ones for EC (FZ) and Impedance localization update for PS, SPS and LHC: Part 1/2 (NB). News from HL-LHC organization and dealines and highlights from Diamond workshop on RF heating (EM, slides for impedance meeting on 11/02/13).

- 74th meeting (23-01-13): Review of the 2012 activities and current plan for the 2013 ones for 3 working groups: BB (WH) and BB for HL-LHC (TP), HD (GR) and Imped (BS).

2012

- 73rd meeting (12-12-12): Follow-up of the LHC instabilities (NM, AB, XB, TP, SW, etc.): some pictures from StephaneF for the fill #3378 moving the B2 tunes along the diagonal (0.31/0.32 and 0.305/0.315 for B1 and B2 resp.) compared to fill #3350 moving the B1 tune and only in V (0.31/0.317 and 0.31/0.32 for B1 and B2 resp.)”: #3350 unstable (seems ~ as usual) and #3378 seems more stable(?), Some detailed analyses from TP: Picture 1-2-3-4-5, Ecloud in LHC IRs? (AlexeyB).

- 72nd meeting (05-12-12): Follow-up of the LHC instabilities (NM, AB, XB, TP, SW, etc.): 1st news from MDs?, LHC instability analysis (on 30/11/2012) by BS comparing BBQ and ADT => ADT pictures 1-2-3-4-5-6 and BBQ pictures 1-2, Space charge code developments for LIU (FS), Some more results from the NHT method (Alexey Burov), Nested Head Tail Vlasov Solver (AP forum, 04/12/2012), RF MD observations (TP and NM), TBI MD (StephaneF et al.).

- 71st meeting (21-11-12): Follow-up of the LHC instabilities (NM, AB, XB, TP, SW, etc.): Recent simulations on Beam-Beam effects and some measurements (TP, LBOC, 20/11/12), Possible set of beam parameters to be used after LS1 (to be used for the Evian2012 workshop, from Chiara Bracco, updated on 23/11/2012), Nested Head Tail Vlasov Solver: Impedance, Damper, Radial Modes, Coupled Bunches, Beam-Beam and more (Alexey Burov), Nested Head-Tail Computations for LHC - results used for Frascati HiLumi workshop(Alexey Burov), 15th MKI Strategy Meeting: MKI8C Temperature (Mike Barnes), MKI8BCD: Temp_Tube_Up. May 1, 2012 to 21 Nov. 2012.

- 70th meeting (07-11-12): Recent results from HiRadMat and potential impact on ongoing collimators impedance studies (Alessandro Bertarelli), Update on LR instabilities (Simon White), LHC Instabilities: needs for tests with Octupole older polarity (TP, LBOC, 06/11/12), Merging Flat-beam MD and Long-Range tests with 25 ns beams (TP, LBOC, 06/11/12).

- 69th meeting (31-10-12): Review of the beam-beam COMBI (COherent Multi-Bunch Interactions) code and plans to include the impedance (XB), Observations of LHC beam instabilities during physics cycle: Comparison old / new octupoles' polarity, comparison old / new collision scheme, is the instability reproducible? When exactly does it happen? etc. (TP and NM), First comparison between AlexeyB's instability model and measured instabilities: do we miss something? What are the next steps / MDs? (AB: pdf or ppt), No octupole valley (AlexeyB), ADT suppression of coherent beam-beam (AlexeyB), Nested HT modes (AlexeyB), Status report about CERN space charge studies with PTC-ORBIT (Alexander Molodozhenstev, internal meeting on 29/10/12).

- 68th meeting (24-10-12): Longitudinal to transverse Landau damping (Alexey Burov).

- 67th meeting (17-10-12): Review of MKI8_D heating (HD), Discussion about the remaining MDs to be performed in the LHC injectors: any other ideas? (GR and everybody), Highlights from the last MD block #3 (NM, XB, another MD not foreseen: picture 1, 2 and 3), Damping of the PS high order head-tail modes by the new transverse damper (Simone Gilardoni et al.): picture 1, 2, 3, 4 and 5, The transverse feedback systems from LHC and its injectors (nice slide from W. Hofle), LHCInstabilityTable(NM).

- 66th meeting (03-10-12): MKI8_D temperature since change during TS (from Mike Barnes), Recent observations of LHC beam instabilities and EOF studies (TP), Coherent effects in the presence of beam-beam and impedance (Simon White), BSRT update at last LMC (Federico Roncarolo), TDI modifications recommendations (Alexej Grudiev), AP forum from Alexey Burov: circular modes for flat beams in the LHC.

- 65th meeting (26-09-12): Summary of HB2012 WG-A on High-Intensity and High-Brightness Hadron Beams (EM).

- 64th meeting (12-09-12): Electron cloud instability (Alexey Burov), Planning for the LHC scrubbing run (GR).

- 63rd meeting (29-08-12): Some MD results vs recent instability theory with damper (NM), Nested HT method (Alexey Burov), Stability considerations with beam-beam and octupoles (XB), Beam Break-Up Instability Near Transition in PS (Vladimir Kornilov), Head-Tail Instability at the Injection Energy in PS (Vladimir Kornilov), Head-Tail Instabilities in the PS Booster (Vladimir Kornilov).

- 62nd meeting (22-08-12): Recent LHC instabilities (BS), Evolution of the PSB Transverse Emittances vs Intensity for LHC beams (EM), Recent working point optimization in the PS for the LHC beam (Rende Steerenberg), Review of space charge activity: simulations and MDs (Alexander Molodozhentsev), Recent Observations of LHC Instabilities (TP, talk at LBOC-31-07-12), Landau Octupoles Polarity (EM, talk at LMC-02-08-12).

- 61st meeting (25-07-12): Longitudinal impedance measurements in the PS: comparison between measurements, theory and simulations (Mauro Migliorati), SummaryLHCMDsBlock2(EM at LSWG, 03/07/12).

- 60th meeting (27-06-12): (First) discussions about all the recent LHC MD results (everybody, few slides): MD summary presented by RalphA at LHC 08:30 meeting on Monday 25/06/12; some plots from NM: 1, 2, 3, 4 and 5; some slides from AlexeyB; summary of the collimator impedance MD (BS). Status of the Single-Bunch Feedback System for the SPS and LHC (Mauro Pivi): Slides, movie1, movie2 and movie3; and PS instability at flat top - recent measurements (Mauro Pivi): Slides and movie.

- 59th meeting (13-06-12): Follow-up of last week on the review of recent observations of instabilities in the LHC at the end of the squeeze and in collision + discussion about of the LHC octupoles. Analysis of recent beam instabilities (EM talk at LBOC), 3HTmodesDamper(AlexeyBurov), Sources of instabilities (EM, talk at LMC). 

- 58th meeting (06-06-12): Review of recent observations of instabilities in the LHC at the end of the squeeze and in collision: XB and NM. Discussion about of the LHC octupoles: Which sign(s) for which mechanisms and when? (XB, NM, BS, TP et al.).

- 57th meeting (30-05-12): Effect of space charge on transverse coherent instabilities (Part 2/5): bunched beams (Alexey Burov).

- 56th meeting (09-05-12): Status of the space charge studies (FS), New ecloud build-up code (PyEcloud) and recent results for some CERN machines (GI).

- 55th meeting (25-04-12 => From 09:00 to 11:00 (max... with coffee break!): Review / status of collective effects in the PSB (GR), PS (HeikoD ), SPS (BS and ElenaS: 1 and 2) and LHC (ElenaS => See in SPS talk and WernerH).

- 54th meeting (18-04-12): Some beam-beam effects during the intensity ramp-up 06/04/2012-08/04/2012 (TP), Possible contributions to the CERN PS impedance model (Mauro Migliorati from Roma, La Sapienza), Overview of HOM damping at PEPII (Mauro Pivi).  

- 53th meeting (11-04-12): SPS UA9 impedance studies (HD).

- 52th meeting (04-04-12): Effect of space charge on transverse coherent instabilities (Part 1/5): coasting beams (Alexey Burov), Recent instabilities observed in the LHC (NM).

- 51th meeting (28-03-12): Past collective effects studies for DAFNE (Mauro Migliorati from Roma, La Sapienza), Beam impedance measurements => Can we make a wire-measurement without using matching boxes (OB).

- 50th meeting (14-03-12): LEIR issues (Christian Carli), Proposed modifications for spare TDI8 (EM), Update of the TCTP heating estimates (HD), LBOC talk on Chroma-Octupole-BunchLength_13-03-12 (EM), Minutes of TDI meeting on 13/03/2012 to approve the new design for the spare (Marc Timmins), Confirmation of the recommendations from impedance team for the new TCTP (EM): Email (14-03-12).

- 49th meeting (15-02-12): PS LIU requests (Simone Gilardoni), Discussion about MDs in 2012: LHC injectors and LHC (all MD requesters/participants).

- 48th meeting (25-01-12): Follow-up of the LHC RF heating: Informal Meeting On TDI (EM) - pdf, MKI (HD), VMTSA (JLN), ALPHA (BS), Discussion about the talks to be presented at the Chamonix12 workshop in 2 weeks (06-10/02/12), Mechanical considerations for the CMS intervention (Mark Gallilee).

- 47th meeting (11-01-12, to be finished at 10:00): Follow-up of the LHC RF heating (EM), Reminder: Proposal for the new PS dedicated tune PU (Marek Gasior), Reminder: Talk by Vincent Baglin at LMC on VMTSA (16/11/11).

2011

- 46th meeting (21-12-11): Discussion about the Large Piwinski Angle MD (Frank Zimmermann) => Postponed to 2012, X-rays near CMS (Vincent Baglin, 20/12/11).

- 45th meeting (07-12-11): The ELENA project and possible ICE studies (OB), HL-LHC WP2 task 2.4 (EM) and HL-LHC WP2 task 2.5 (WH).

- 44th meeting (23-11-11): 2011 ICE goals: where do we stand? (all the ICE members), LHC: current hot topics and suggestions for MDs in 2012 (all the ICE members), Status report on BBLR simulations (Tatiana Rijoff): WireCompensation and WireAdds, LHC25nsMDon24and25-10-11(EM), TheoreticalPowerSpectraComparison_LHCbunch(EM).

- 43th meeting (26-10-11): Can circular optics be useful for upgrades of the LHC complex: Part II (Alexey Burov), Anomalous Diffusion for Phase Space Density Modification (Alexey Burov), TDI Heating with Large Gaps (Vincent Baglin).

- 42th meeting (19-10-11): Can circular optics be useful for upgrades of the LHC complex (Alexey Burov => See also PRSTAB paper from by A. Burov, S. Nagaitsev and Y. Derbenev: http://pre.aps.org/abstract/PRE/v66/i1/e016503), TCBImode1WithCurrentBeamParametersAtTheEndOfSqueeze(NM), LHCinstability_17-10-11(EM), Recommendations from impedance team on TCTP (BS): Email + Slides.

- 41th meeting (12-10-11): Highlights from IPAC11: NM and GR, Summary of Fermilab's MDs (FS), Beam-Beam tune footprint (Ji Qiang), Final Transverse Emittance due to the Ecloud Induced Fast Instability (EM), Tevatron farewell party.

- 40th meeting (28-09-11): TDI heating and TDI8R observations since the last Technical Stop with added thermocouples (Giuseppe Bregliozzi for Vincent Baglin), Transverse constant wake field contribution (KL).

- 39th meeting (21-09-11): Transverse instability in the AD? (Lajos Bojtar), Summary of Fermilab's MDs (FS) => Postponed to another meeting (41th).

- 38th meeting (14-09-11): Collimator Design With BPM - TCTP (BS), Past predictions for Longitudinal Loss of Landau damping and Longitudinal Mode Coupling and comparison with the recent results from Alexey Burov (EM), May resistive-wall drive longitudinal coupled-bunch instability? (Alexey Burov), TDI8R observations since the last Technical Stop with added thermocouples (Vincent Baglin, not discussed in the meeting), Beam induced heating on LHC beam screens - Arcs, DSs and ITs (Laurent Tavian, not discussed in the meeting).

- 37th meeting (31-08-11): Preliminary analysis of the ADT data from LHC ecloud MD 26th August (Hannes Bartosik), Raymond Wasef for his afternoon's defense in Grenoble (Headtail simulation studies of Landau damping through octupoles in the LHC) + Rehearsals of the 3 IPAC11 talks of the section: LHC ecloud (GR), LHC beam-beam (WH) and Euronu (EW) + Recent observations of beam instabilities in the LHC (EM talk at LBOC).

- 36th meeting (17-08-11): Beta beams implementation at CERN (CH) and Outcome of Nufact11 (EW) + AnswersToQuestionsByNeutrinoPanelAtNufact11.

- 35th meeting (10-08-11): Theory, observations and mitigation of dancing bunches in the Tevatron (AlexeyB): Part II, Impedance of the SLAC phase 2 rotatable collimator (EM, slides from Tom Markiewicz): Talk1 and Talk2 (finally not discussed during this meeting), 1st TT20 steering MD (OB), Follow-up of the HEADTAIL simulation studies of Landau damping through octupoles in the LHC (RaymondW), 3BatchInjectionSchemeForLHCBeams (EM, PS LIU) (presented at PS LUI and finally not discussed in this meeting).

- 34th meeting (03-08-11): Theory, observations and mitigation of dancing bunches in the Tevatron (AlexeyB), Bench measurements of the PS fast wire scanner impedance (JLN).

- 33th meeting (27-07-11): Main activities and news from the HEADTAIL WG (GR),  Follow-up of the collimation review for IR3MBC, PSB beam brightness increase by a factor 2 (EM), Update of the impedance of new LHC experimental beam pipes (BS).

- 32th meeting (15-06-11): Main activities and news from the Beam-Beam WG (WH) and main activities and news from the Space Charge WG (FS).

- 31th meeting (08-06-11): Main activities and news from the Ecloud WG (FZ) and main activities and news from the Beta-Beams WG (EW), Some other LHC fills with and without TEBU at injection (EM), Studies of impedance effects for a composite beam pipe for the experimental areas (BS).

- 30th meeting (01-06-11): Main activities and news from the Impedance WG (BS), FFT corrections for tune measurements (NB).

- 29th meeting (25-05-11): 1st LHC beam-beam observations in 2011 (TP), Analysis of some LHC fills with TEBU at injection (EM).

- 28th meeting (18-05-11): Review of Hamiltonian treatment of synchro-betatron motion: Part III/III (KL), Review of IBS: analytic and simulation studies (Alessandro Vivoli).

- 27th meeting (11-05-11): Comparison between simulations and measurements in the LHC with heavy ions (Tom Mertens), Review of Hamiltonian treatment of synchro-betatron motion: Part II/III (KL), TCBI in the LHC (talk given at the last LBOC, EM).

- 26th meeting (04-05-11): Measurement opportunities with the LHC transverse damper (Daniel Valuch), Simulations tools for the time evolution of the heavy ions beam parameters (Roderik Bruce), Comparison between simulations and measurements in the LHC with heavy ions (Tom Mertens) => Postponed.

- 25th meeting (20-04-11): Current Impedance Activities (BS), News from the US of the 6D beam-beam lens (FS) + Beam-beam note (FS), Review of IBS: analytic and simulation studies (Alessandro Vivoli) => Postponed.

- 24th meeting (13-04-11): The SUSSIX code (EHM), Taking advantage of Sussix's sensitivity to reveal higher order mode coupling (BS), High level parallelization of SUSSIX (Harry Renshall), Phase advance accuracy (NB), 1st results of the LHC scrubbing run _ YesterdayTalkAtLBOC (EM).

- 23th meeting (06-04-11): 1st LHC beam-beam observations in 2011 (TP) => Postponed to the next meeting (due to LHC scrubbing run), Review of Hamiltonian treatment of synchro-betatron motion: Part II (KL) => Postponed to the next meeting (due to LHC scrubbing run), Transverse Impedance Measurements in the PS in 2001 (EM-MG-RS).

- 22th meeting (30-03-11): Review of Hamiltonian treatment of synchro-betatron motion: Part I (KL), Preparation of the LHC scrubbing run: exact dates + measurements to be done (based on last year experience) + people (EM), 1st LHC beam-beam observations in 2011 (TP) => Postponed to the next meeting, Discussion about IPAC2011 papers from ICE & colleagues.

- 21th meeting (23-03-11): Status of the list of Actions (rapidly...), 1st LHC beam-beam observations in 2011 (TP) => Postponed to the next meeting, General wall impedance theory for 2D axisymmetric and flat multilayer structures: Part II (NM), Review of Hamiltonian treatment of synchro-betatron motion: Part I (KL) => Postponed to the next meeting.

- 20th meeting (16-03-11): Highlights from the CERN-GSI ecloud workshop held at CERN on 7-8/03/2011 (GR), General wall impedance theory for 2D axisymmetric and flat multilayer structures: Part I (NM).

- 19th meeting (02-03-11): BE-IT meetings and outcome (FS), LHC BLM (Humberto Maury Cuna and Octavio Dominguez Sanchez de la Blanca), LHC BBQ (Tatiana Pieloni and Benoit Salvant), Look at the list of Actions => Postponed to the next meeting, ReminderOnHTInstabilityRiseTimeDeterminationInTimeAndFrequencyDomain(EM, not discussed during the meeting).

- 18th meeting (23-02-11): Coherent tune shift measurements at PS injection and extraction (Sandra Aumon), Preliminary investigation on SPS space charge effects (Giuliano Franchetti).

- 17th meeting (16-02-11): 2011 goals for ICE + Organization (EM), Experience with beam-beam effect at the Tevatron by Yuri Alexahin.

- 16th meeting (09-02-11): Flat beams in SIXTRACK by Emanuele Laface + Short (~ 10 min) presentations of all the LHC instruments (with the corresponding BI, RF and OP experts) which we used during ecloud MDs in Oct/Nov 2010: Transverse dampers (Riccardo de Maria), HeadTail monitor (Benoit Salvant), LHC BPM (Nicolas Mounet), Schottky monitor (Tatiana Pieloni), Transverse emittance measurements from BSRT (Christian Hansen), Transverse emittance measurements from FWS (Carlo Zannini), BCT and FBCT (Gersende Prior): how many equipments? how does it work? Different modes of operation? Data saving? etc.

- 15th meeting (26-01-11): (Nufact10 and) Beta Beams for the Euronu mid term (EW), Update on collective effects studies for beta-beams in the decay ring (CH), The Production Ring for Beta Beams: status, news and future plans (EB).

- 14th meeting (19-01-11): Round table + news on ecloud, beam-beam and impedance (to prepare Chamonix2011 the week after) + DiscussionOnOutgassingHolesInTungstenAndDScollimator_MarcTimmins_15-12-10 + PictureICESkiOutingDay_Avoriaz_13-12-2010(thanksBS).

2010

- 13th meeting (24-11-10): Ecloud activities for the LHC (FZ), Material characterization method and ferrite's results (Christine Vollinger, BE/RF, the talk could not be finished due to time constraint) and IR3MBC collimators status (NM, finally not discussed during the meeting due to time constraint).

- 12th meeting (10-11-10): Trip reports and software plans for the upgrade (FS) and ZBASE status (JLN).

- 11th meeting (20-10-10): Status of the EM simulations and modeling of ferrite loaded kickers (CZ) and Coaxial wire measurements of ferrite kickers (HD) + DiscussionOnPhase1Coll_RFissues_AhmedCherif(EM).

- 10th meeting (06-10-10): Space charge studies for PS2 (Ji Qiang, LBNL) [Note that he also gave an APF talk "A parallel strong-strong beam-beam simulation code and applications to LHC studies" on TU 05/10/10 at 11:00 in the BE Auditorium => http://lhc-beam-beam.web.cern.ch/lhc-beam-beam/forum/cernbbtalkvnew.pdf], Study of J-PARC Main Ring with the PTC-ORBIT code (Alexander Molodozhentsev, KEK), LHC DS collimators (EM), LHC PIMs (EM). Sheng Wang (from China) gave 2 talks on Tuesday 05-10-10: (1) The Introduction to CSNS Accelerators and (2) Commisioning issues of BEPCII.

- 9th meeting (22-09-10): Review of the Beta-Beams activity (EW), Beta-Beams production ring (EB) and Collective effects studies for beta-beams in the decay ring (CH): key and pdf + Follow-up IR3MBC (BS).

- 8th meeting (15-09-10): Review of some beam-beam predictions for LHC (TP) and Beam-beam tune shifts measurements in the LHC (Emanuele Laface) + Follow-up on on PSB instabilities (GR) + Comparison Phase 1 and IR3MBC for LHC at 7 TeV/c (NM) + Update of the LHC multibunch modes at 7 TeV/c (NM, not discussed during the meeting): Scan of the bunch length in X and Y.

- 7th meeting (08-09-10): Transverse impedance localization (NB) and Tevatron luminosity evolution model and its application to the LHC (Valeri Lebedev from Fermilab).

- 6th meeting (01-09-10): First measurements of longitudinal impedance and single-bunch effects in the LHC (Elena Chapochnikova), A HEADTAIL analysis tool (KL) and Highlights from GSI workshop (BS) + Follow-up on PSB instabilities (GR, presented at the MSWGmeeting_27-08-10) + Some results on the LHC multibunch modes at 7 TeV/c (NM, finally not discussed during the meeting).

- 5th meeting (11-08-10): Luminosity scans in the LHC (Simon White), Observations of fast and slow beam losses in stable-beam operation in the LHC (Emanuele Laface): key and ppt, and EM simulations for the new PS wire scanner (BS) => Recommendation sent to William Andreazza (BE/BI) after the meeting.

- 4th meeting (04-08-10): PSB ring 4 instabilities (GR) and First results with very high single-bunch intensity in the SPS (BS).

- 3rd meeting (28-07-10): EM simulations of the SPS pumping ports (OB).

- 2nd meeting (20-07-10): FS example of "Christmas tree" with single-particle dynamics => SIXTRACK input: fort.2 and fort.3, Evolution of the (5,0) resonance (x Axis just amplitude steps => Last step = 10 mm), Lines spectrum (numbers in the legend are in mm), round table.

- 1st meeting (14-07-10): ICEsection(EM) (pdf) and Status of the LHC instabilities (EM) (pdf and movies from BS in separate files: MeasuredData, SimulationData and SimulationDataWithLosses).