Transverse damping systems for the future CERN LHC

Author

Gorbatchev, E. ; Ivanov, I. ; Kossoukhine, V. ; Lebedev, N. ; Melnikov, V. ; Rabtsoun, S. ; H?¶fle, W. ; Linnecar, T. ; Louwerse, R. ; T?¼ckmantel, J.

Author_Institution

JINR, Dubna, Russia

Volume

2

fYear

2001

fDate

6/23/1905 12:00:00 AM

Firstpage

1237

Abstract

Injection of the high intensity proton beam into the CERN Large Hadron Collider (LHC) presents challenging requirements for the transverse damping system built as a joint project between CERN and JINR (Dubna). This system must quickly reduce injection errors to minimise beam loss to remove risk of quench, and preserve emittance for high luminosity. It should work in a wide frequency range of 20 MHz to fight transverse coupled bunch instabilities. A low frequency electrostatic kicker with tetrode amplifiers has been chosen and the design considerations leading to this choice are described. The kicker design took account of the heating due to the electron cloud effect. A model to simulate the kicker/amplifier combination is presented. Finally preliminary results on the performance of the prototype damper power amplifier and kicker are given

Keywords

beam handling equipment; colliding beam accelerators; power amplifiers; proton accelerators; storage rings; tetrodes; LHC; Large Hadron Collider; beam loss; damper power amplifier; electron cloud; electrostatic kicker; power amplifier; tetrode amplifiers; transverse coupled bunch instabilities; transverse damping systems; Clouds; Cogeneration; Damping; Electrons; Electrostatics; Frequency; Large Hadron Collider; Particle beams; Power amplifiers; Prototypes;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 2001. PAC 2001. Proceedings of the 2001

Print_ISBN

0-7803-7191-7

Type

conf

DOI

10.1109/PAC.2001.986639

Filename

986639