A new type of distributed enamel based clearing electrode

Abstract

Clearing electrodes can be used for electron cloud (EC) suppression in high intensity particle accelerators. In this paper the use of low and highly resistive layers on a dielectric substrate are examined. The beam coupling impedance of such a structure is evaluated. Furthermore the clearing efficiency as well as technological issues are discussed. Clearing electrodes can be used for electron cloud (EC) suppression in high intensity particle accelerators. In this paper the use of low and highly resistive layers on a dielectric substrate are examined. The beam coupling impedance of such a structure is evaluated. Furthermore the clearing efficiency as well as technological issues are discussed. EUROPEAN ORGANIZATION FOR NUCLEAR RESEARCH CERN -AB Department

Measurements of electron cloud growth and mitigation in dipole, quadrupole, and wiggler magnets

“…• Longitudinal grooves [13,[24][25][26], which (in a dipole field) intercept electrons produced on the wall before they can drift to the center of the chamber. • A clearing electrode [12,14,27], which pulls electrons toward the chamber wall, away from the beam.…”