ECLOUD'12

Europe/Rome
La Biodola, Isola d'Elba

La Biodola, Isola d'Elba

<a target="_blank" href=http://www.elba4star.it/HH/index-Eng.html>Hotel Hermitage</a> </br>e-mail: <a href="mailto:ecloud12@lists.lnf.infn.it"> ecloud12@lists.lnf.infn.it
FRANK ZIMMERMANN (CERN) , Roberto Cimino (LNF)
Description
The fifth electron-cloud workshop, ECLOUD'12, will take place from 5 to 8 June, 2012 at La Biodola (isola d'Elba) Italy. The existence of the electron-cloud effect (ECE) has been firmly established experimentally at essentially all modern storage rings, either via performance limitations or by deliberate provocation. The ECE is a consequence of the strong coupling between a charged-particle beam and a cloud of electrons that inevitably develops inside the vacuum chamber. Resulting deleterious effects include beam instabilities, beam losses, emittance growth, increases in vacuum pressure, added heat load at the vacuum chamber walls, and interference with certain beam diagnostics. Electron-cloud effects are incompletely understood dynamical phenomena. While the fundamental mechanisms are well recognized and the qualitative picture clear, the phenomena involves many surface properties and geometrical parameters of the vacuum chamber coupled in a nontrivial way with the beam characteristics. In addition, the relevant time and energy scales span a wide range, and many of the essential parameters are not well known a priori. Hence the detailed prediction of ECE's at a given machine, not to mention the extrapolation from one machine to another, are subject to uncertainties. High-power microwave applications in modern satellites are perturbed by phenomena of multipacting and RF breakdown, which are governed by the same surface parameters as ECE in accelerators, which, especially for multi-carrier signals, exhibit very similar characteristics and electron-cloud build-up time scales, and which can be modelled by similar simulation tools.

Since the last ECLOUD workshop in 2010, an intense R&D effort has been under way to further understand the physics of the electron cloud and to investigate new methods for the mitigation of its adverse consequences. In particular, a crash effort is ongoing at CERN since late 2010 to understand and mitigate electron-cloud phenomena in the LHC. Furthermore, the SuperB and SuperKEKB factories have been approved; as a consequence of the high beam intensity in these machines, the ECE is expected to be significant, and it is urgent to better quantify and understand the associated phenomena.

The ECLOUD'12 workshop will be a timely meeting at which to present and discuss many recent and new electron-cloud observations at the LHC, electron cloud predictions for FAIR, SuperB and SUPER KEKB, electron-cloud studies at DAFNE, electron cloud mitigation by clearing electrodes and graphite/carbon coatings, modeling of incoherent electron-cloud effects, self-consistent simulations, synergies with other communities like the Valencia Space Consortium and the European Space Agency.

The ECLOUD'12 program will focus on: a review of EC observations at existing machines; recent experimental efforts to characterize the EC (including EC diagnostics, experimental techniques, characterization of mitigation methods, and characterization of beam instabilities and emittance growth); the status of EC physics models and simulation codes and their comparison with recently acquired experimental data; and the mitigation requirements and potential performance limitations imposed by the EC on upgraded and future machines. A dedicated session will address problems related to RF breakdown and multipacting for space applications.

ECLOUD'12 will be held at the Hermitage Hotel in La Biodola, Isola d'Elba. We are looking forward to an exceptional gathering where we can enjoy the beautiful location, have interesting scientific discussions about the state of the art, and initiate stimulating collaborations among electron-cloud key experts as well as with students and other scientists from neighbouring fields.

The meeting is sponsored by:
Istituto Nazionale di Fisica Nucleare (INFN)
CERN
EUCARD
ACCNET
LOW-ε-RING
pictures
Participants
  • Ady Hershcovitch
  • Alex Pertica
  • Alexander Krasnov
  • Arturo Stabile
  • Chandrashekhara M Bhat Bhat
  • Delphine RIVOIRON
  • Elena Shaposhnikova
  • Fedor Petrov
  • FRANK ZIMMERMANN
  • Franz Schaefers
  • Fritz Caspers
  • Gerald Dugan
  • Gimeno Martinez Benito
  • Giovanni Iadarola
  • Giovanni Rumolo
  • Giuliano Franchetti
  • Hannes Bartosik
  • Hitoshi Fukuma
  • Humberto Maury Cuna
  • ISABEL MONTERO
  • James Crittenden
  • John Flanagan
  • John Fox
  • John Sikora
  • JOSE MIGUEL JIMENEZ
  • Juan Federico Esteban Müller
  • Kathrin Schulte
  • Kazuhito Ohmi ohmi
  • Kevin Li
  • kyo shibata
  • Laura Boon
  • Lucia Lilli
  • Maria Rita Ferrazza
  • Maria Rosaria Masullo
  • María Davila
  • Mauro Pivi
  • Michael Mattes
  • Miguel Furman
  • Mikhail Zobov
  • Mohamed Belhaj
  • Nenad Bundaleski
  • Octavio Dominguez
  • Oliver Meusel
  • Paul Lebrun
  • Pedro Costa Pinto
  • Rainer Wanzenberg
  • Rene Goderich
  • reza valizadeh
  • Roberto Cimino
  • Roberto Flammini
  • Rosanna Larciprete
  • Sara Casalbuoni
  • Sean O'Connor
  • Shu Lai
  • Sihui Wang
  • Stefania Petracca
  • Stefano De Santis
  • Theo Demma
  • Vincent Baglin
  • Vinicio Tullio
  • Walter Scandale
  • Wolfgang Hofle
    • 6:15 PM 7:00 PM
      Electron Cloud Effects in Accelerators 45m
      Speaker: Mr Miguel Furman (LBNL (Lawrence Berkeley Natl. Lab.))
      Slides
    • 7:30 PM 8:00 PM
      Welcome Cocktail by the pool 30m
    • 8:30 AM 10:30 AM
      I - ECE on Beam Dynamics: observations and prediction
      • 8:30 AM
        Electron-Cloud Effects in Past and Future Machines – Quick Walk through 50 Years of Electron-Cloud Studies 30m
        Speaker: FRANK ZIMMERMANN (CERN)
        Slides
      • 9:00 AM
        Observations and Predictions in LHC and SPS 30m
        Speaker: Dr Giovanni Rumolo (CERN)
        Slides
      • 9:30 AM
        Electron Cloud Observations and Predictions at KEKB, PEP-II and SuperB Factories 30m
        Speaker: Dr Hitoshi Fukuma (High Energy Accelerator Research Organization)
        Slides
      • 10:00 AM
        Observations and Predictions at CesrTA, and outlook for ILC 30m
        Speaker: Gerald Dugan (Cornell University)
        Slides
    • 10:30 AM 11:00 AM
      Coffee Break 30m
    • 11:00 AM 1:00 PM
      II - ECE on Beam Dynamics: observations and prediction
      • 11:00 AM
        Observations and Predictions for DAFNE and SuperB 30m
        Speaker: Theo Demma (LAL)
        Slides
      • 11:30 AM
        Precision Simulations of the Electron Cloud (EC) in Fermilab Main Injector with VORPAL and Related Benchmarks 30m
        Speaker: Paul Lebrun (Fermilab)
        Slides
      • 12:00 PM
        Electron Cloud Effects in Proton and Ion Machines 30m
        Speaker: Mr Fedor Petrov (Computational Electromagnetics Laboratory, Darmstadt University of Technology)
        Slides
      • 12:30 PM
        E-Cloud dependence on the Bunch Profile - An Experiment in the PS and an Extension to the LHC 20m
        Speaker: Dr Chandrashekhara M Bhat Bhat (Fermilab/CERN)
        Slides
    • 1:00 PM 4:00 PM
      Lunch Break - Fuoco di Bosco 3h
    • 4:00 PM 5:40 PM
      I - ECE Effects on Vacuum and Heat Load
      • 4:00 PM
        ECE's at LHC: Vacuum and Heat Load 30m
        Speaker: Dr Vincent Baglin (CERN)
        Slides
      • 4:30 PM
        SuperKEKB Vacuum System & KEK Studies 30m
        Speaker: Dr kyo shibata (High Energy Accelerator Research Organization (KEK))
        Slides
      • 5:00 PM
        Beam Heat load in Superconducting Wigglers 20m
        Speaker: Dr Sara Casalbuoni (KIT)
        Slides
      • 5:20 PM
        Benchmarking at LHC 20m
        Speaker: Mr Octavio Dominguez (CERN)
        Slides
    • 5:40 PM 6:00 PM
      Coffee Break 20m
    • 6:00 PM 7:00 PM
      II - ECE Effects on Vacuum and Heat Load
      • 6:00 PM
        Build-up & Heat-load Simulations - Benchmarking for LHC 20m
        Speaker: Mr Humberto Maury Cuna (CINVESTAV)
        Slides
      • 6:20 PM
        Observations of Electron Cloud Phenomena at PETRA III 20m
        Speaker: Rainer Wanzenberg (DESY)
      • 6:40 PM
        Chamber Surface Roughness and Electron Cloud for the APS SCU 20m
        Speaker: Ms Laura Boon (Purdue University)
        Slides
    • 8:30 AM 10:20 AM
      I - Surface Properties, Coating and Experimental Studies
      • 8:30 AM
        The Chemical origin of Sey at Technical Surfaces 30m
        Speaker: Dr Rosanna Larciprete (CNR-ISC/LNF-INFN)
        Slides
      • 9:00 AM
        Soft X-ray Reflectivity from Quasi-Perfect Mirros to Accelerator Walls 30m
        Speaker: Dr Franz Schaefers (Helmholtz Zentrum Berlin)
        Slides
      • 9:30 AM
        Photo Reflectivity Simulations 20m
        Speaker: Gerald Dugan (Cornell University)
        Slides
      • 9:50 AM
        Studies at BINP 30m
        Speaker: Alexander Krasnov (BINP)
        Slides
    • 10:20 AM 10:50 AM
      Coffee Break 30m
    • 10:50 AM 1:10 PM
      II - Surface Properties, Coating and Experimental Studies
      • 10:50 AM
        ONERA/CNES - Simulation Model and Measurements for SEY 30m
        Speaker: Mr Mohamed Belhaj (ONERA)
      • 11:20 AM
        Carbon Coating of SPS Dipole Chambers 20m
        Speaker: Pedro Costa Pinto (CERN)
        Slides
      • 11:40 AM
        Study of SEY Degradation of Amorphous Carbon Coatings 20m
        Speaker: Nenad Bundaleski (CeFiTec)
        Slides
      • 12:00 PM
        Novel Types of Anti-eCloud Surfaces 30m
        Speaker: Prof. ISABEL MONTERO (ICMM-CSIC)
        Slides
      • 12:30 PM
        Experimental Studies of Stable Confined Electron Clouds usign Gabor Lenses 20m
        Speaker: Dr Oliver Meusel (Institute for applied Physics / University Frankfurt)
        Poster
        Slides
      • 12:50 PM
        XPS and SEY Measurements Upon Scrubbing at Different Electron Kinetic Energies: the Case of TiN 20m
        Speaker: Dr Roberto Flammini (CNR-IMIP/LNF-INFN)
        Slides
    • 1:10 PM 3:10 PM
      Lunch Break - Fuoco di Bosco 2h
    • 3:10 PM 4:50 PM
      I - Multipactoring and Related Effects
      • 3:10 PM
        Secondary Electron Emission in the Limit of Low Energy Phusics Acceleratos 20m
        Speaker: Dr Igor Kaganovich (PPPL)
        Slides
      • 3:30 PM
        Multipactoring in High Power RF devices on Satellites 20m
        Speaker: Prof. Gimeno Martinez Benito (University of Valencia)
        Slides
      • 3:50 PM
        Multipactoring Activities at VALspace/Valencia 30m
        Speaker: Prof. Gimeno Martinez Benito (University of Valencia)
        Slides
      • 4:20 PM
        Incoming and Outgoing Electrons in Spacecraft Charging 30m
        Speaker: Dr Shu Lai (Massachusetts Institute of Technology)
        Slides
    • 4:50 PM 5:20 PM
      Coffee Break 30m
    • 5:20 PM 6:30 PM
      II - Multipactoring and Related Effects
      • 5:20 PM
        SPS Dipole Multipactor Test and TE Wave Diagnostics 20m
        Speaker: Dr Fritz Caspers (CERN)
        Slides
      • 5:40 PM
        Modeling Interaction of e-cloud & Microwaves 20m
        Speaker: Dr Michael Mattes (EPFL-STI-IEL-LEMA)
        Slides
      • 6:00 PM
        TE Wave Measurement and Modeling 30m
        Speaker: Mr John Sikora (Cornell University (CLASSE))
        Slides
    • 6:45 PM 7:45 PM
      Football Match - ECE Theory vs ECE Experiment 1h
    • 8:30 PM 8:45 PM
      Social Dinner - Fuoco di Bosco 15m
    • 8:30 AM 10:40 AM
      I - Simulations and Diagnostics
      • 8:30 AM
        Py-Ecloud and Build Up Simulations at CERN 25m
        Speaker: Mr Giovanni Iadarola (CERN - Università di Napoli Federico II)
        Slides
      • 8:55 AM
        Synchronous Phase Shift at LHC 25m
        Speaker: Mr Juan Federico Esteban Müller (CERN)
        Slides
      • 9:20 AM
        Instabilities Simulations with Wideband Feedback Systems: CMAD, HEADTAIL, WARP 25m
        Speaker: Dr Kevin Li (CERN)
        Slides
      • 9:45 AM
        Benchmarking of Instability Simulations at LHC 25m
        Speaker: Mr Hannes Bartosik (CERN)
        Slides
      • 10:10 AM
        ECE Codes & Simulations at KEK 30m
        Speaker: Dr Kazuhito Ohmi ohmi (KEK)
        Slides
    • 10:40 AM 11:10 AM
      Coffee Break 30m
    • 11:10 AM 1:00 PM
      II - Simulations and Diagnostics
      • 11:10 AM
        Incoherent Beam Effects 30m
        Speaker: Dr Giuliano Franchetti (GSI)
        Slides
      • 11:40 AM
        A Mapping Approach to the Electron Cloud for LHC 20m
        Speaker: Theo Demma (LAL)
        Slides
      • 12:00 PM
        Electron Cloud Observations at the ISIS Proton Synchrotron 20m
        Speaker: Mr Alex Pertica (STFC - RAL - ISIS)
        Slides
      • 12:20 PM
        Refined analysis of Electron-Cloud Blow-up data at CesrTA Using Coded Aperture 20m
        Speaker: Dr John Flanagan (KEK)
        Slides
      • 12:40 PM
        Electron Cloud Buildup Characterization Using TIme-Resolved Shielded Pickup Masurements and Custum Modeling Code 20m
        Speaker: James Crittenden (Cornell University)
        Slides
    • 1:00 PM 4:00 PM
      Lunch Break - Fuoco di Bosco 3h
    • 4:00 PM 6:00 PM
      I - Mitigation
      • 4:00 PM
        Mitigation Strategy: Overview, including LHC and ILC 30m
        Speaker: Dr Mauro Pivi (SLAC)
        Slides
      • 4:30 PM
        Mitigation Strategy at CERN 30m
        Speaker: Dr JOSE MIGUEL JIMENEZ (CERN)
        Slides
      • 5:00 PM
        In-Situ Coating Technology 30m
        Speaker: Dr Ady Hershcovitch (BNL)
        Slides
      • 5:30 PM
        Overview of EC-Instability Control Using Feedbacks 30m
        Speaker: Prof. John Fox (SLAC)
    • 6:00 PM 6:20 PM
      Coffee Break 20m
    • 6:20 PM 7:30 PM
      II - Mitigation
      • 6:20 PM
        Development of Transverse Feedbacks Against ECE at SPS and LHC 20m
        Speaker: Dr Wolfgang Hofle (CERN)
        Slides
      • 6:40 PM
        Operating Experience with Electron Cloud Clearing Electrodes at DAFNE 20m
        Speaker: Mikhail Zobov (LNF)
        Slides
      • 7:00 PM
        Conclusions 30m
        Speakers: FRANK ZIMMERMANN (CERN) , Roberto Cimino (LNF)
        Slides