Simulation of a Feedback System for the Attenuation of e-Cloud Driven Instability

Conference · Mon May 04 00:00:00 EDT 2009

OSTI ID:973950

Vay, J -L; Furman, M A; Fox, J; Rivetta, C; de Maria, R; Rumolo, G

Electron clouds impose limitations on current accelerators that may be more severe for future machines, unless adequate measures of mitigation are taken. Recently, it has been proposed to use feedback systems operating at high frequency (in the GHz range) to damp single-bunch transverse coherent oscillations that may otherwise be amplified during the interaction of the beam with ambient electron clouds. We have used the simulation package WARP-POSINST and the code Headtail to study the growth rate and frequency patterns in space-time of the electron cloud driven beam breakup instability in the CERN SPS accelerator with, or without, an idealized feedback model for damping the instability.

• Research Organization: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: Accelerator& Fusion Research Division
• DOE Contract Number: DE-AC02-05CH11231
• OSTI ID: 973950
• Report Number(s): LBNL-2658E; TRN: US1002243
• Resource Relation: Conference: Particle Accelerator Conference 2009, PAC '09, Vancouver BC, Canada, May 4-8, 2009
• Country of Publication: United States
• Language: English

Related Subjects

43
ACCELERATORS
ATTENUATION
CERN
CLOUDS
DAMPING
ELECTRONS
FEEDBACK
GHZ RANGE
INSTABILITY
MITIGATION
OSCILLATIONS
SIMULATION
SPACE-TIME
Acclerator Simulation
Attenuation of e-cloud driven instability