Effect on luminosity from bunch-to-bunch orbit displacements at CESR

Author

Sagan, D. ; Billing, M. ; Palmer, M.

Author_Institution

Cornell Univ., Ithaca, NY, USA

Volume

1

fYear

2001

fDate

2001

Firstpage

347

Abstract

In routine operation the Cornell electron/positron storage ring, CESR, collides 9 trains of 4 or 5 bunches of electrons and positrons. The luminosity of individual bunch pairs can suffer if the transverse positions of those bunches are displaced differentially. This paper will present the results of studies of the effect of bunch-by-bunch or train-by-train variations in the luminosity by measuring (1) the deflection from the beam-beam interaction, (2) the relative positions of the bunches, and (3) the bunch dependent luminosity from the CLEO detector. Comparisons between these three methods are discussed

Keywords

colliding beam accelerators; electron accelerators; particle beam bunching; particle beam diagnostics; storage rings; CESR; Cornell electron/positron storage ring; beam-beam interaction; bunch-bunch orbit displacements; collider; individual bunch pairs; luminosity effect; train-by-train variations; Condition monitoring; Electron beams; Electrostatics; Extraterrestrial measurements; Particle separators; Position measurement; Positrons; Radio frequency; Storage rings; Voltage fluctuations;

fLanguage

English

Publisher

ieee

Conference_Titel

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

Conference_Location

Chicago, IL

Print_ISBN

0-7803-7191-7

Type

conf

DOI

10.1109/PAC.2001.987511

Filename

987511