Computer modelling of bunch-by-bunch feedback for the SLAC B-factory design

Author

Briggs, D. ; Fox, J.D. ; Hosseini, W. ; Klaisner, L. ; Morton, P. ; Pellegrin, J.-L. ; Thompson, K.A. ; Lambertson, G.

Author_Institution

SLAC, Stanford Univ., CA, USA

fYear

1991

fDate

6-9 May 1991

Firstpage

1407

Abstract

A computer model of the storage ring, including the RF system, wake fields, synchrotron radiation loss, and the bunch-by-bunch feedback system, is presented. The feedback system model represents the performance of a fast phase detector front end (including system noise and imperfections), a digital filter used to generate a correction voltage, and a power amplifier and beam kicker system. The combined ring-feedback system model is used to study the feedback system performance required to suppress instabilities and to quantify the dynamics of the system. Results which show the time development of coupled bunch instabilities and the damping action of the feedback system are presented.<>

Keywords

beam handling equipment; electron accelerators; nuclear electronics; storage rings; SLAC B-factory; beam kicker system; bunch-by-bunch feedback system; coupled bunch instabilities; digital filter; fast phase detector front end; power amplifier; ring-feedback system model; storage ring; synchrotron radiation loss; wake fields; Digital filters; Feedback; Noise generators; Phase detection; Phase noise; Power generation; Power system modeling; Radio frequency; Storage rings; Synchrotron radiation;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1991. Accelerator Science and Technology., Conference Record of the 1991 IEEE

Conference_Location

San Francisco, CA, USA

Print_ISBN

0-7803-0135-8

Type

conf

DOI

10.1109/PAC.1991.164650

Filename

164650