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Vol. 9 (2020): Proceedings of the ICFA mini-Workshop on Mitigation of Coherent Beam Instabilities in Particle Accelerators, Zermatt, Switzerland, 23–27 September 2019
View Vol. 9 (2020): Proceedings of the ICFA mini-Workshop on Mitigation of Coherent Beam Instabilities in Particle Accelerators, Zermatt, Switzerland, 23–27 September 2019

Editors: E. Métral, G. Rumolo, T. Pieloni

This ICFA Mini-Workshop on “Mitigation of Coherent Beam Instabilities in Particle Accelerators" (MCBI2019) focused on all the mitigation methods for all the coherent beam instabilities, reviewing in detail the theories (and underlying assumptions), simulations and measurements on one hand, but on the other hand trying to compare the different mitigation methods (e.g. with respect to other effects such as beam lifetime) to provide the simplest and more robust solutions for the day-to-day operation of the machines.

ISBN 978-92-9083-588-2 (paperback), ISBN 978-92-9083-589-9 (PDF)

Published: 2020-12-16

Full Issue

  • Preface

    v
    DOI: https://doi.org/10.23732/CYRCP-2020-009.v

  • A general overview of the MCBI 2019 ICFA Mini-Workshop

    vii
    DOI: https://doi.org/10.23732/CYRCP-2020-009.vii

Articles

  • Review of impedance-induced instabilities and their possible mitigation techniques

    M. Migliorati, E. Métral, M. Zobov
    1
    DOI: https://doi.org/10.23732/CYRCP-2020-009.1

  • Space charge effects for transverse collective instabilities in circular machines

    A. Burov
    9
    DOI: https://doi.org/10.23732/CYRCP-2020-009.9

  • Review of instabilities with ions or/and electrons and possible mitigations

    L. Mether
    15
    DOI: https://doi.org/10.23732/CYRCP-2020-009.15

  • Review of instabilities with beam-beam effects and possible mitigations

    T. Pieloni
    23
    DOI: https://doi.org/10.23732/CYRCP-2020-009.23

  • Operational experience of beam stability control

    R. Steerenberg
    33
    DOI: https://doi.org/10.23732/CYRCP-2020-009.33

  • Stability diagrams for Landau damping

    J.S. Berg
    40
    DOI: https://doi.org/10.23732/CYRCP-2020-009.40

  • Landau damping in the transverse plane

    N. Mounet
    45
    DOI: https://doi.org/10.23732/CYRCP-2020-009.45

  • Landau damping in the longitudinal plane

    E. Shaposhnikova, T. Argyropoulos, I. Karpov
    54
    DOI: https://doi.org/10.23732/CYRCP-2020-009.54

  • Advanced Landau damping with radio-frequency quadrupoles or nonlinear chromaticity

    M. Schenk, X. Buffat, A. Grudiev, K. Li, E. Métral, A. Maillard
    60
    DOI: https://doi.org/10.23732/CYRCP-2020-009.60

  • On Landau damping restoration with electron lenses in space-charge dominated beams

    Y. Alexahin, A. Burov, V. Shiltsev, A. Valishev
    65
    DOI: https://doi.org/10.23732/CYRCP-2020-009.65

  • BNS damping

    A. Novokhatski
    68
    DOI: https://doi.org/10.23732/CYRCP-2020-009.68

  • Mitigation of collective effects by optics optimisation

    Y. Papaphilippou, F. Antoniou, H. Bartosik
    74
    DOI: https://doi.org/10.23732/CYRCP-2020-009.74

  • Transverse beam instabilities and linear coupling in the LHC

    L.R. Carver, X. Buffat, E. Métral, K. Li, M. Schenk
    82
    DOI: https://doi.org/10.23732/CYRCP-2020-009.82

  • Coping with longitudinal instabilities using controlled emittance blow-up

    H. Timko, S. Albright, T. Argyropoulos, P. Baudrenghien, H. Damerau, J. Esteban Müller, A. Haas, G. Papotti, D. Quartullo, J. Repond, E. Shaposhnikova
    84
    DOI: https://doi.org/10.23732/CYRCP-2020-009.84

  • Suppression of the fast beam-ion instability by tune spread in the electron beam due to beam-beam effects

    G. Stupakov
    90
    DOI: https://doi.org/10.23732/CYRCP-2020-009.90

  • Beam loading compensation for optimal bunch lengthening with harmonic cavities

    N. Yamamoto, T. Takahashi, S. Sakanaka
    96
    DOI: https://doi.org/10.23732/CYRCP-2020-009.96

  • Suppression of the longitudinal coupled bunch instability in DAΦNE in collision with a crossing angle

    A. Drago, M. Zobov, D. Shatilov, P. Raimondi
    101
    DOI: https://doi.org/10.23732/CYRCP-2020-009.101

  • RF scheme to mitigate longitudinal instabilities in the SPPC

    L.H. Zhang, J.Y. Tang
    107
    DOI: https://doi.org/10.23732/CYRCP-2020-009.107

  • Mitigation of space charge effects using electron column at IOTA ring

    C.S. Park, B. Freemire, E. Stern, C.E. Mitchell
    112
    DOI: https://doi.org/10.23732/CYRCP-2020-009.112

  • Beam transfer function and stability diagram in the Large Hadron Collider

    C. Tambasco, T. Pieloni, X. Buffat, E. Métral
    115
    DOI: https://doi.org/10.23732/CYRCP-2020-009.115

  • Transverse damper and stability diagram

    S.A. Antipov, D. Amorim, N. Biancacci, X. Buffat, E. Métral, N. Mounet, A. Oeftiger, D. Valuch
    121
    DOI: https://doi.org/10.23732/CYRCP-2020-009.121

  • Diagnostics with quadrupolar pick-ups

    A. Oeftiger
    130
    DOI: https://doi.org/10.23732/CYRCP-2020-009.130

  • Diagnostics of longitudinal bunch instabilities at KARA

    B. Kehrer, M. Brosi, E. Bründermann, S. Funkner, M.J. Nasse, G. Niehues, M.M. Patil, J.L. Steinmann, A.-S. Müller
    137
    DOI: https://doi.org/10.23732/CYRCP-2020-009.137

  • Impedance localization and identification

    N. Biancacci, R. Alemany Fernández, Y. Alexahin, M. Carlà, J. Eldred, W. Höfle, A. Huschauer, T. Levens, L. Malina, E. Métral, M. Migliorati, B. Popovic, B. Salvant, F. Schmidt, R. Tomàs, D. Ventura, C. Vollinger, N. Wang, C. Zannini
    141
    DOI: https://doi.org/10.23732/CYRCP-2020-009.141

  • Source of horizontal instability at the CERN Proton Synchrotron Booster

    E. Koukovini-Platia, M.J. Barnes, H. Bartosik, G. Rumolo, L. Sermeus, C. Zannini
    148
    DOI: https://doi.org/10.23732/CYRCP-2020-009.148

  • ADTOBSBOX to catch instabilities

    M.E. Söderén, D. Valuch
    154
    DOI: https://doi.org/10.23732/CYRCP-2020-009.154

  • Longitudinal beam quality monitoring

    T. Argyropoulos
    156
    DOI: https://doi.org/10.23732/CYRCP-2020-009.156

  • Design optimization and impedance sources in Low Emittance Rings (LERs)

    R. Nagaoka
    162
    DOI: https://doi.org/10.23732/CYRCP-2020-009.162

  • Low impedance design with example of kickers (including cables) and potential of metamaterials

    C. Zannini, M.J. Barnes, N. Biancacci, A. Danisi, E. Koukovini-Platia, E. Métral, G. Rumolo, B. Salvant
    167
    DOI: https://doi.org/10.23732/CYRCP-2020-009.167

  • Low-impedance beam screen design for future hadron colliders

    S. Arsenyev, D. Schulte
    175
    DOI: https://doi.org/10.23732/CYRCP-2020-009.175

  • Impedance reduction for LHC collimators

    A. Mereghetti, D. Amorim, S.A. Antipov, N. Biancacci, R. Bruce, F. Carra, E. Métral, N. Mounet, S. Redaelli, B. Salvant
    179
    DOI: https://doi.org/10.23732/CYRCP-2020-009.179

  • Surface effects for electron cloud

    A. Novelli, M. Angelucci, A. Liedl, L. Spallino, R. Cimino, R. Larciprete
    186
    DOI: https://doi.org/10.23732/CYRCP-2020-009.186

  • Electron cloud mitigation with laser ablated surface engineering technology

    O.B. Malyshev, R. Valizadeh
    190
    DOI: https://doi.org/10.23732/CYRCP-2020-009.190

  • Vlasov eigenfunction analysis of space-charge and beam-beam effects

    Y. Alexahin
    193
    DOI: https://doi.org/10.23732/CYRCP-2020-009.193

  • Active methods of suppressing longitudinal multi-bunch instabilities

    F. Bertin, H. Damerau, G. Favia, A. Lasheen
    197
    DOI: https://doi.org/10.23732/CYRCP-2020-009.197

  • Damping rate limitations for transverse dampers in large hadron colliders

    V.A. Lebedev
    203
    DOI: https://doi.org/10.23732/CYRCP-2020-009.203

  • Implementation of transverse dampers in beam stability analyses

    K. Li, J. Komppula
    211
    DOI: https://doi.org/10.23732/CYRCP-2020-009.211

  • Interplay of transverse damper and head-tail instability

    V. Smaluk, G. Bassi, A. Blednykh
    216
    DOI: https://doi.org/10.23732/CYRCP-2020-009.216

  • Destabilising effect of resistive transverse dampers

    E. Métral
    221
    DOI: https://doi.org/10.23732/CYRCP-2020-009.221

  • Feedback design for control of the micro-bunching instability based on reinforcement learning

    T. Boltz, M. Brosi, E. Bründermann, B. Haerer, P. Kaiser, C. Pohl, P. Schreiber, M. Yan, T. Asfour, A.-S. Müller
    227
    DOI: https://doi.org/10.23732/CYRCP-2020-009.227

  • Coherent and incoherent space charge resonance effects

    I. Hofmann
    230
    DOI: https://doi.org/10.23732/CYRCP-2020-009.230

  • Space charge effects on Landau damping from octupoles

    V. Kornilov, O. Boine-Frankenheim
    237
    DOI: https://doi.org/10.23732/CYRCP-2020-009.237

  • Electron cloud effects in positron storage rings

    K. Ohmi
    242
    DOI: https://doi.org/10.23732/CYRCP-2020-009.242

  • Incoherent electron cloud effects in the Large Hadron Collider

    K. Paraschou, G. Iadarola
    249
    DOI: https://doi.org/10.23732/CYRCP-2020-009.249

  • Impact of coherent and incoherent beam-beam effects on the beams stability

    X. Buffat
    256
    DOI: https://doi.org/10.23732/CYRCP-2020-009.256

  • Noise and possible loss of Landau damping through noise excited wakefields

    S.V. Furuseth, X. Buffat
    262
    DOI: https://doi.org/10.23732/CYRCP-2020-009.262

  • Mitigation of coherent beam instabilities (MCBI) for CERN LIU and HL-LHC

    G. Rumolo
    270
    DOI: https://doi.org/10.23732/CYRCP-2020-009.270

  • Mitigation of coherent beam instabilities in linear colliders and FCC-hh

    D. Schulte
    277
    DOI: https://doi.org/10.23732/CYRCP-2020-009.277

  • Mitigation of the impedance-related collective effects in FCC-ee

    M. Zobov, E. Belli, R. Kersevan, A. Novokhatski, S.G. Zadeh, M. Migliorati
    279
    DOI: https://doi.org/10.23732/CYRCP-2020-009.279

  • Mitigation of coherent beam instabilities in CEPC

    N. Wang, Y. Zhang, Y. Liu, S. Tian, K. Ohmi, C. Lin
    286
    DOI: https://doi.org/10.23732/CYRCP-2020-009.286

  • MCBI in an electron-ion collider

    R. Li
    291
    DOI: https://doi.org/10.23732/CYRCP-2020-009.291

  • Status of negative momentum compaction operation at KARA

    P. Schreiber, T. Boltz, M. Brosi, B. Haerer, A. Mochihashi, A.I. Papash, M. Schuh, A.-S. Müller
    297
    DOI: https://doi.org/10.23732/CYRCP-2020-009.297

  • Time domain measurements of the sub-THz response of different coatings for beam pipe walls

    A. Passarelli, A. Andreone, V.G. Vaccaro, M.R. Masullo, Y. Papaphilippou, R. Corsini
    300
    DOI: https://doi.org/10.23732/CYRCP-2020-009.300

  • Wake fields evaluation for beam collimators and the 60 pc electron beam at the compact ERL at KEK

    O.A. Tanaka, N. Nakamura, T. Obina, Y. Tanimoto, T. Miyajima, M. Shimada, N.P. Norvell
    305
    DOI: https://doi.org/10.23732/CYRCP-2020-009.305

  • CLIC-DR electron cloud build up simulations

    F. Yaman, G. Iadarola, D. Schulte
    309
    DOI: https://doi.org/10.23732/CYRCP-2020-009.309

  • Consequences of longitudinal coupled-bunch instability mitigation on power requirements during the HL-LHC filling

    I. Karpov, P. Baudrenghien, L.E. Medina Medrano, H. Timko
    312
    DOI: https://doi.org/10.23732/CYRCP-2020-009.312

  • Synchronous phase shift measurements for evaluation of the longitudinal impedance model at the CERN SPS

    M. Schwarz, A. Farricker, I. Karpov, A. Lasheen
    318
    DOI: https://doi.org/10.23732/CYRCP-2020-009.318

  • Identification of impedance sources responsible for longitudinal beam instabilities in the CERN PS

    A. Lasheen, H. Damerau, G. Favia, P. Kozlowski, B. Popovic
    323
    DOI: https://doi.org/10.23732/CYRCP-2020-009.323

  • Vlasov solvers and simulation code analysis for mode coupling instabilities in both longitudinal and transverse planes

    E. Métral, M. Migliorati
    330
    DOI: https://doi.org/10.23732/CYRCP-2020-009.330

  • Systematic studies of the microbunching and weak instability at short bunch lengths

    M. Brosi, E. Blomley, T. Boltz, E. Bründermann, M. Caselle, J. Gethmann, B. Kehrer, A.I. Papash, L. Rota, P. Schönfeldt, P. Schreiber, M. Schuh, M. Schwarz, J.L. Steinmann, M. Weber, A.-S. Müller
    335
    DOI: https://doi.org/10.23732/CYRCP-2020-009.335

  • Wakefield of two counter-rotating beams

    L. Teofili, M. Migliorati, I. Lamas
    340
    DOI: https://doi.org/10.23732/CYRCP-2020-009.340

  • Physics modelling and numerical simulation of beam-ion interaction in HEPS

    C. Li, S. Tian, N. Wang, H. Xu, Q. Qin
    347
    DOI: https://doi.org/10.23732/CYRCP-2020-009.347

  • Implementation of RF modulation in Booster for mitigation of the collective effects in the transient process after the swap-out injection

    H. Xu, Z. Duan, N. Wang, G. Xu
    353
    DOI: https://doi.org/10.23732/CYRCP-2020-009.353

  • Measurements and damping of the ISIS head-tail instability

    R.E. Williamson, B. Jones, A. Pertica, D.W. Posthuma de Boer, C.M. Warsop, J.P.O. Komppula
    357
    DOI: https://doi.org/10.23732/CYRCP-2020-009.357

  • Study of collective effects in the CERN FCC-ee top-up Booster

    D. Quartullo, M. Migliorati, M. Zobov
    362
    DOI: https://doi.org/10.23732/CYRCP-2020-009.362

  • Landau damping with electron lenses

    V. Gubaidulin, O. Boine-Frankenheim, V. Kornilov, E. Métral
    368
    DOI: https://doi.org/10.23732/CYRCP-2020-009.368

  • Tailored metamaterial-based absorbers for high order mode damping

    M.R. Masullo, V.G. Vaccaro, N. Chikhi, A. Passarelli, A. Andreone
    373
    DOI: https://doi.org/10.23732/CYRCP-2020-009.373

  • TMCI, why is the horizontal plane so different from the vertical one?

    T. Günzel
    378
    DOI: https://doi.org/10.23732/CYRCP-2020-009.378

  • Acknowledgements

    382
    DOI: https://doi.org/10.23732/CYRCP-2020-009.382

  • International advisory committee

    383
    DOI: https://doi.org/10.23732/CYRCP-2020-009.383

  • A random collection of photographs from the Workshop

    384
    DOI: https://doi.org/10.23732/CYRCP-2020-009.384
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