ECL2 Workshop

28 Feb 2007, 17:30 → 2 Mar 2007, 19:00 Europe/Zurich

Auditorium Meyrin - 6/2-024 (CERN)

Daniel Schulte (CERN), Frank Zimmermann (AB/ABP), Fritz Caspers (CERN), Walter Scandale (CERN)

Electron Cloud Clearing Electron Cloud Effects and Technological Consequences

Wednesday, 28 February

17:30 → 21:00 SOCIAL EVENTS

17:30 NEG Coating Laboratory Visit

Guided Tour

19:00 Welcome Drink

Venue: Main building - Restaurant Novae

Thursday, 1 March

09:00 → 11:15 Overview and Simulations

09:00 Welcome, Motivation & Objectives

Speaker: Steve Myers (CERN)

Slides Welcome.pdf Welcome.ppt

09:10 Remarks & Workshop Organization

Speakers: Frank Zimmermann (AB/ABP), Fritz Caspers (CERN)

Slides Organization.pdf Organization.ppt

09:20 Update on e-cloud simulations for LHC injectors & grooves simulations

Speaker: Marco Venturi

Slides

• marcoI_ECL2-CERN-1-2March07.pdf
• marcoI_ECL2-CERN-1-2March07.ppt
• marcoII_ECL2-CERN-1-2March07.pdf
• marcoII_ECL2-CERN-1-2March07.ppt

09:40 Questions

09:50 e-cloud instability in the SPS and SPS+

Speaker: Giovanni Rumolo

Slides GR-ECL2.pdf

10:10 Questions

10:20 e-cloud suppression for the ILC damping ring and tests in PEP-II

Speaker: Mauro Pivi

Slides ILC_ecloud_2007-01-Mar_02_ECL2_CERN_-_M._Pivi.pdf ILC_ecloud_2007-01-Mar_02_ECL2_CERN_-_M._Pivi.ppt

10:40 Questions

10:50 Coffee Break

11:15 → 13:50 Technological solutions I

11:15 Experience with Ion Clearing Electrodes at AA and EPA

Speaker: Alain Poncet (CERN)

Slides ECL2-AA-EPA.pdf ECL2-AA-EPA.ppt

11:35 Questions

11:45 Vitreous enamel - an efficient material component

Speakers: Joerg WENDEL, Peter HELLMOLD

Slides Enamel_properties.pdf

12:05 Questions

12:15 Vitreous enamel - foundations, production, applications and CERN tests

Speaker: Franz-Josef BEHLER

Slides CERN_070301_0228_blau.pdf CERN_070301_0228_blau.ppt

12:35 Questions

12:45 Lunch Break - DSR

14:15 → 16:10 Technological solutions II

14:15 NEG coating

Speaker: Paolo Chiggiato (CERN)

Slides Chiggiato-ECL2-2007.pps

14:35 Questions

14:45 SEY and Clearing studies at KEKB

Speaker: Dr Yusuke Suetsugu (KEK)

Slides ECL2_suetsugu.pdf ECL2_suetsugu.ppt

15:05 Questions

15:15 How the electron multipacting may affect the ILC vacuum design

Speaker: Oleg MALYSHEV

Slides Oleg_Malyshev_-_ILC-DR_vacuum_problems_and_e-cloud_2-03-2007.pdf Oleg_Malyshev_-_ILC-DR_vacuum_problems_and_e-cloud_2-03-2007.ppt

15:35 Questions

15:45 Coffee Break

16:10 → 19:00 Simulation code development, results, and analytical treatments

16:10 Simulations of grooves, slots & build up with Faktor2

Speaker: Warner Bruns (Technische Universitaet Berlin)

Slides Faktor2-Status-2007-02-28.pdf

16:30 Questions

16:40 Coupled e-ion maps & extracting the molecular desorption yield

Speaker: Ubaldo IRISO

Slides

• Ubaldo_EIC.pdf
• Ubaldo_EIC.ppt
• Ubaldo_eta_e.pdf
• Ubaldo_eta_e.ppt

17:00 Questions

17:10 Maps for Electron Cloud in LHC Dipoles

Speaker: Dr Theo Demma (Univeristy of Sannio)

Slides DEMMA.PDF

17:20 Questions

17:30 Simulation progress and plans at Rostock/DESY

Speakers: Aleksandar MARKOVIK, Gisela POEPLAU

Slides

• bunch_cloud.pdf
• MarkovikPoeplau_ELC2.pdf
• MarkovikPoeplau_ELC2.ppt
• n_5MeV_xz_5L_50000points_Static_nonreg50x_ECL2.avi

17:50 Questions

18:00 Discussion of first day

Speaker: Elena Shaposhnikova

Slides

• AirBakingTalk.pdf
• AirBakingTalk.ppt
• simulations_of_clearing_electrodes_for_the_PS.pdf
• simulations_of_clearing_electrodes_for_the_PS.ppt

Friday, 2 March

09:00 → 10:55 Beam measurements I

09:00 Clearing voltages & Solenoids at SPS damper pick up

Speaker: Wolfgang Hofle (CERN)

Slides ECL2_whofle.pdf ECL2_whofle.ppt

09:20 Questions

09:30 Experimental results with NEG coating in the SPS

Speaker: Adriana Rossi (CERN)

Slides AR_ECL2(CERN2007).pdf AR_ECL2(CERN2007).ppt

09:50 Questions

10:00 Sparking of SPS el-stat. septa in presence of e-cloud

Speaker: Karel Cornelis (CERN)

Slides ECsepta.pdf ECsepta.ppt

10:20 Questions

10:30 Coffee Break

10:55 → 13:20 Beam measurements II

10:55 Clearing electrodes in DAFNE

Speaker: Mikhail ZOBOV

Slides DAFNE_ICE.pdf DAFNE_ICE.ppt

11:15 Questions

11:25 e-cloud observations & cures at RHIC

Speaker: Dr Wolfram Fischer (BNL)

Slides 2007-0301_E-cloud_observations_and_cures_at_RHIC.pdf 2007-0301_E-cloud_observations_and_cures_at_RHIC.ppt

11:45 Questions

11:55 Heat load in ANKA s.c. undulator

Speaker: Sara CASALBUONI

Slides Casalbuoni_ECL2_2007.pdf

12:15 Questions

12:25 Lunch Break - DSR

13:25 → 15:25 Impedance issues

13:25 Impedance of clearing electrodes with GdfidL

Speaker: Warner Bruns (Technische Universitaet Berlin)

Slides Elektroden2.pdf Elektroden-Array.pdf

13:45 Questions

13:55 Impedance of clearing electrodes with HFSS

Speakers: Fritz Caspers (CERN), Tom Kroyer (Unknown)

Slides ecl2_clearing_electrode_impedance.pdf

14:15 Questions

14:25 Attempt to Measure the Influence of NEG Coating on Impedance

Speaker: Thomas Perron (ESRF)

Slides PerronECL2.pdf PerronECL2.ppt

14:45 Questions

14:55 Resistive Wall Wakes and Clearing Electrodes

Speaker: Rainer Wanzenberg (DESY)

Slides

• ECL2_wanzenberg.pdf
• ECL2_wanzenberg.pdf
• ECL2_wanzenberg.ppt

15:15 Questions

15:25 → 19:00 Studies, designs and plans

15:25 Electron Cloud Studies at CESR-c and CesrTA

A program to characterize electron cloud build-up in the Cornell Electron Storage Ring has recently begun. I will provide a brief overview of the work that has been done to date and describe future plans to use CESR as a test accelerator for the International Linear Collider (ILC) Damping Rings. As part of this program we plan to study the impact of the electron cloud on ultra-low emittance beams and will undertake measurements of electron cloud growth and suppression in the CESR-c wigglers which were selected for the baseline ILC design.

Speaker: Mark PALMER

Slides Palmer_2007_02Mar.pdf Palmer_2007_02Mar.ppt

15:45 Questions

15:55 Resonator e-cloud measurements

Speaker: Ubaldo Iriso (Unknown)

Slides Ubaldo_RR.pdf Ubaldo_RR.ppt

16:15 Questions

16:25 Coffee Break

16:50 Discussion

Slides discussion.pdf discussion.ppt

18:00 Possibly short summaries from each session chair