Dynamic aperture of the chromatically corrected collider lattice

Author

Pilat, F. ; Nosochkov, Y. ; Sen, T. ; Stiening, R.

Author_Institution

Superconducting Super Collider Lab., Dallas, TX, USA

fYear

1993

fDate

17-20 May 1993

Firstpage

239

Abstract

A scheme for correcting the second order chromatic effects generated by the Interaction Regions (IRs) has been designed for the SSC Collider ring, where four families of sextupoles are located in the arc sectors next to the East Cluster. The effect of these sextupoles on the dynamic and momentum aperture of the machine has been evaluated with a simulation model in which alignment, field errors and operational corrections are realistically represented Several optics configurations with different values of β* at the Interaction Points have been studied for different sets of field error specifications in the IR quadrupoles. The local chromaticity correction system improves the momentum aperture of the Collider for every configuration studied with no relevant loss of dynamic aperture or momentum, when the effect of errors are taken into consideration

Keywords

aberrations; beam handling techniques; ion optics; particle beam diagnostics; proton accelerators; storage rings; synchrotrons; SSC Collider ring; arc sectors; chromatically corrected collider lattice; dynamic aperture; interaction points; local chromaticity correction system; momentum aperture; second order chromatic effects; Apertures; Error correction; Laboratories; Lattices; Nonlinear dynamical systems; Nonlinear optics; Optical losses; Optical sensors; Particle tracking; Stability;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1993., Proceedings of the 1993

Conference_Location

Washington, DC

Print_ISBN

0-7803-1203-1

Type

conf

DOI

10.1109/PAC.1993.308954

Filename

308954