ECL2 Joint CARE-HHH-APD, CARE-ELAN and EUROTEV-WP3 mini-Workshop on Electron Cloud Clearing   Electron Cloud Effects and Technological Consequences   dedicated to the memory of Francesco Ruggiero (1957-2007)

 

HHH - Accelerator Physics and synchrotron Design

Main topics:

Complementary aspects:

• Review of ion and electron-cloud clearing electrodes: configurations and applications used so far

• Clearing electrodes and their impedance in DAFNE

• Requirements for electron cloud and ion clearing electrodes at future accelerators (DC potential required etc)

• Other ion and electron cloud clearing concepts (including control of dust particles like in the AA)

• Theoretical comparison of strip-like (distributed) clearing electrode performance over the full length with local (button like) clearing electrodes

• The concept of electromagnetically invisible clearing structures (high resistive coating on ceramic)

• Impedance and loss factor issues for all types of clearing electrode structures.

• Technological possibilities and limitations for implementation of strip-type distributed clearing structures in metallic and dielectric beampipes.

• Electron cloud clearing using RF, microwave and wakefields

• Fighting the electron cloud with getter coating

• Reducing the secondary electron yield by a grooved chamber wall

• Discussion of new concepts and/or combinations of old methods

• Diagnostic aspects (how good is the improvement?)

• Beam induced electron multipacting and vacuum

• Effect of the residual gas ionisation on e-cloud & vacuum

Courtesy of Fritz Caspers, Oleg Malyshev, and Walter Scandale

Organizing committee:

F. Caspers (CERN), O. Malyshev (ASTeC/Cockcroft), M. Pivi (SLAC), W. Scandale (CERN), D. Schulte (CERN), R. Wanzenberg (DESY), F. Zimmermann (CERN)

Last modified on 05/24/2007 15:36  by or