ECM'08 - Electron Cloud Mitigation Workshop

20 Nov 2008, 08:00 → 21 Nov 2008, 18:30 Europe/Zurich

AB Auditorium Meyrin (CERN)

Frank Zimmermann (CERN), Giovanni Rumolo (CERN), Sergio Calatroni (CERN), Vincent Baglin (CERN)

Electron Cloud Mitigation 2008, Workshop devoted to review the present status of electron cloud simulation tools and mitigation studies. The participants are invited to register and to submit their presentations from this web site. A block of rooms has been reserved at the CERN Hostel.

Thursday 20 November ¶

09:00 → 12:30 Overview of e-cloud related activities and projects¶

In this session the participants are welcomed and the main electron cloud projects around the world are illustrated in order to better focus on the outstanding issues which will be detailed out in the following sessions

Conveners: Giovanni Rumolo (CERN), Roberto Cimino (INFN Laboratorio di Frascati)

09:00 Welcome & goals¶

Speaker: Frank Zimmermann (CERN)

Slides ECM'08_Motivation_and_Goals_-_Zimmermann.pdf ECM'08_Motivation_and_Goals_-_Zimmermann.ppt

09:20 Questions & discussion¶

09:30 SPS Upgrade¶

Speaker: Elena Shaposhnikova (AB/RF CERN)

Slides ECM08.pdf ECM08.ppt

09:50 Questions & discussion¶

10:00 Electron cloud in the LHC¶

Speaker: Vincent Baglin (CERN)

Slides VB_ECM_2008.pdf VB_ECM_2008.ppsx

10:20 Questions & discussion¶

10:30 Coffee break

11:00 Electron cloud in ANKA¶

Speaker: Sara Casalbuoni (Forschungszentrum Karlsruhe)

Slides Electron_cloud_observations_and_activities_at_ANKA.pdf

11:20 Questions & discussion¶

11:30 Electron cloud and feedback in DAFNE¶

Speaker: Alessandro Drago (INFN)

Slides Drago_ECM08.pdf

11:50 Questions & discussion¶

12:00 Overview of ESA activities in multipactor¶

Speaker: David Raboso (ESA/ESTEC)

Slides Electron_Cloud_mitigation_session_Raboso.pdf

12:20 Questions & discussion¶

12:30 → 14:00 Lunch break

14:00 → 19:15 Mitigation methods: coatings, electrodes, feedback¶

This session will focus on the latest development in electron cloud mitigation or suppression techniques. It will especially concentrate on the recent research on new coatings or surface treatments, on new types of low-impedance electrodes, and on the feasibility of a wide-band feedback system to combat the electron cloud induced instability.

Conveners: Luis Galan (U.A. Madrid), Sergio Calatroni (CERN)

14:00 CERN coating developments¶

Speaker: Mauro Taborelli (CERN)

Slides ECM08-Mauro.pdf ECM08-Mauro.ppt

14:20 Questions & discussion¶

14:25 SEY Research¶

Speaker: Isabel Montero (Instituto de Ciencia de Materiales de Madrid)

Slides presentation_CERN_Isabel_Montero_final.pdf presentation_CERN_Isabel_Montero_final.ppt

14:45 Questions & discussion¶

14:50 KEK e-cloud mitigation studies¶

Speaker: Kyo Shibata (KEK)

Slides shibata_KEK.pdf shibata_KEK.ppt

15:10 Questions & discussion¶

15:15 Carbon coatings: physics and analysis¶

Speaker: Andrea Ferrari (Electrical Engineering Division, Engineering Department, University of Cambridge)

Slides ECM08m.pdf

15:35 Questions & discussion¶

15:40 Enamel coating technology for UHV applications at CERN¶

Speaker: Fritz Caspers (CERN)

Slides Enamel_coating_Technology_at_CERN_ECM08_Nov2008_caspers_Final.pdf Enamel_coating_Technology_at_CERN_ECM08_Nov2008_caspers_Final.ppt

16:00 Questions & discussion¶

16:05 Coffee break

16:35 Analysis of waveguide multipactor. Multicarrier research. Dielectric surfaces¶

Speaker: Benito Gimeno (UVEG)

Slides CERN_UVEG_Nov2008.pdf CERN_UVEG_Nov2008.PPT

16:55 Questions & discussion¶

17:00 Review of Secondary Electron Yield Studies to Mitigate Electron Cloud at SLAC¶

Speaker: Frederic le pimpec

Slides FLP_CERNEcloud08.pdf

17:20 Questions & discussion¶

17:25 E-cloud feedback development¶

Speaker: John Fox (SLAC)

Slides Ecloudprogress1108.pdf

17:45 Questions & discussion¶

17:50 Review of INFN SEY measurements and progress on electron energy analysers¶

Speaker: Roberto Cimino (LNF-INFN)

Slides CImino_ECM'08.pdf

18:10 Questions & discussion¶

18:15 Locally modulated static magnetic field - A proposal¶

Speaker: Fritz Caspers (CERN)

Slides

• ACS_air_antenna_2008_v01_Caspers-Montesinos.pdf
• ACS_air_antenna_2008_v01_Caspers-Montesinos.pptx
• locally_modulated_magnetic_field__CERN__ECM_2008_caspers_final.pdf
• locally_modulated_magnetic_field__CERN__ECM_2008_caspers_final.ppt
• slides

18:30 Questions and discussion¶

18:35 Simulations for local magnetized Nickel layer¶

Speaker: Fritz Caspers (CERN)

Slides Bruhn_simulation_ECM2008_CERN_Caspers.pdf Bruhn_simulation_ECM2008_CERN_Caspers.pptx

18:45 Questions & discussion¶

20:00 → 22:00 Social dinner

Friday 21 November ¶

09:00 → 12:30 Beam measurements¶

In this session electron cloud measurements and observations in different machines around the world will be reviewed and discussed

Conveners: John Fox (SNAL/SLAC), Vincent Baglin (CERN)

09:00 Studies with carbon coatings in the SPS¶

Speaker: Christina Yin Vallgren (Chalmers University of Technology)

Slides ECM08-YV.pdf

09:15 Questions & discussion¶

09:20 Comparing conventional & enamel clearing electrodes¶

Speaker: Edgar Mahner (CERN)

Slides ECM_2008-11-21_Mahner.pdf ECM_2008-11-21_Mahner.ppt

09:35 Questions & discussion¶

09:40 Microwave diagnostics in SPS & LHC¶

Speaker: Fritz Caspers (CERN)

Slides Microwave_diagnostics_in_SPS_ECM_08__CERN_Nov_2008_caspers_final.pptm

09:55 Questions & discussion¶

10:00 E-cloud feedback activities for the SPS and LHC¶

Speaker: Wolfgang Hofle (CERN)

Slides ECM_2008_WH.pdf ECM_2008_WH.ppt

10:15 Questions & discussion¶

10:20 Coffee break

10:50 Electron cloud studies in Cesr-TA¶

Speaker: Mark Palmer (Cornell University, CLASSE)

Slides CesrTA_ECM08_R4.pdf CesrTA_ECM08_R4.ppt

11:05 Questions & discussion¶

11:10 SPS kicker outgassing with different bunch spacings¶

Speaker: Mike Barnes (CERN)

Slides BARNES_SPSkickers_Ecloud_Nov21_2008.pdf BARNES_SPSkickers_Ecloud_Nov21_2008.ppt

11:25 Questions & discussion¶

11:30 Observations of SPS e-cloud instability with exponential pickup¶

Speaker: Riccardo de Maria (BNL)

Slides rdemaria.pdf

11:45 Questions & discussion¶

11:50 Experiments on SPS e-cloud instability¶

Speaker: Giovanni Rumolo (CERN)

Slides ECM08-GR.pdf ECM08-GR.pptx

12:05 Questions & discussion¶

12:10 Influence of the Electrons in Multipactor¶

Speaker: Cesar Miquel Espanya (ESA/ESTEC)

Slides CME_-_Influence_of_the_Electrons_in_Multipactor.pdf

12:25 Questions & discussion¶

12:30 → 13:45 Lunch break

13:45 → 18:30 Electron cloud simulations¶

The goal of this session is to summarize the present state of art of electron cloud simulation tools and focus on the latest development in the existing codes

Conveners: David Raboso (ESA/ESTEC), Frank Zimmermann (CERN)

13:45 E-cloud simulation tools at CERN¶

Speaker: Frank Zimmermann (CERN)

Slides CERN_e-Cloud_Simulations_-_Zimmermann.pdf CERN_e-Cloud_Simulations_-_Zimmermann.ppt

14:05 Questions & discussion¶

14:10 Progress on WARP and code benchmarking¶

Speaker: Marco venturini (BNL)

Slides Vay-feedback-simul-cern_care-nov08_3.pdf Vay-feedback-simul-cern_care-nov08_3.ppt

14:30 Questions & discussion¶

14:35 Microwave transmission: theory, simulations, experiments & plans¶

Speaker: Kiran Sonnad (FZK)

Slides ECM_sonnad.pdf

14:55 Questions & discussion¶

15:00 FEST3D: A CAD tool for analysis&design of mum&mm-wave passive components¶

Speaker: Carlos Vicente (Parc Científic Universitat de València)

Slides FEST3D_CERN_presentation.pdf

15:10 Questions & discussion¶

15:15 MEST¶

Speaker: Luis Galan (UAM)

Slides ECM-08-LGalan.pdf ECM-08-LGalan.ppt

15:25 Questions & discussion¶

15:30 Corona research and CEST¶

Speaker: L. Conde (UPM)

Paper Cest-CERN.pdf

15:45 Questions & discussion¶

15:50 Coffee break

16:20 LEMA research activities in multipactor&corona in coaxial&waveguide structures¶

Speaker: Michael Mattes (EPFL)

Slides CERN_2008_11_21_LEMA.ppt

16:35 Questions & discussion¶

16:40 ANKA simulations with ECLOUD¶

Speaker: Ubaldo Iriso (Unknown)

Slides Ubaldo_ECM08_v1.pdf Ubaldo_ECM08_v1.ppt

16:55 Questions & discussion¶

17:00 Simulations of emittance growth¶

Speaker: Giuliano Franchetti (GSI)

Slides ECM08-talk.pdf

17:15 Questions & discussion¶

17:20 Instability simulations for DAFNE¶

Speaker: Theo Demma (INFN)

Slides demma.pdf demma.ppt

Video bunchmovie.avi movie.avi

17:35 Questions & discussion¶

17:40 General discussion & closing remarks¶