Emittance dilution in 1 and 5 TeV 30 GHz linear colliders

Author

Guignard, G. ; Raubenheimer, T.O. ; Schulte, D.

Author_Institution

CERN, Geneva, Switzerland

Volume

1

fYear

1997

fDate

12-16 May 1997

Firstpage

473

Abstract

In this paper, we describe the single and multi-bunch sources of emittance dilution in the linacs of both 1 and 5 TeV center-of-mass energy linear colliders. The linacs operate at high rf accelerating gradients with a frequency around 30 GHz. At this high accelerating frequency, the wakefields are very strong and we discuss the BNS damping and correction procedures as well as the alignment and construction tolerances that are required to preserve the transverse emittance. Finally, because the collider must operate with long bunch trains, we consider the multi-bunch emittance dilution for a few cases where either the long-range transverse wakefield is damped or it is decreased by a combination of weak damping and detuning

Keywords

beam handling techniques; electron accelerators; linear colliders; particle beam bunching; 1 to 5 TeV; 30 GHz; BNS correction; BNS damping; accelerating frequency; detuning; emittance dilution; linear colliders; multi-bunch; multi-bunch emittance dilution; single bunch; transverse wakefield; wakefield; Acceleration; Colliding beam devices; Damping; Frequency; Jitter; Linear particle accelerator; Power measurement; Stability; Structural beams;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1997. Proceedings of the 1997

Conference_Location

Vancouver, BC

Print_ISBN

0-7803-4376-X

Type

conf

DOI

10.1109/PAC.1997.749692

Filename

749692