A low emittance lattice for the NSLS X-ray Ring

Author

Safranek, J.

Author_Institution

Nat. Synchrotron Light Source, Brookhaven Nat. Lab., Upton, NY, USA

Volume

1

fYear

1995

fDate

1-5 May 1995

Firstpage

266

Abstract

A new high-brightness lattice for the NSLS X-Ray Ring is presented. The horizontal emittance of the X-Ray Ring can be reduced by a factor of two to three by allowing nonzero dispersion in the insertion device straight sections and by better controlling the periodicity of the dispersion. Beam was stored in a low emittance lattice during machine studies. The dispersion in the operations lattice lacks the 8-fold periodicity of the magnet structure, because the orbit is offset in the sextupoles. During machine studies the focusing effect of the sextupoles was compensated using trim supplies on the quadrupoles in the dispersive straight sections. Measured results will be presented. A discussion of the hardware upgrade requirements that would be necessary to run the low emittance lattice in operations is also included

Keywords

X-ray production; X-rays; electron accelerators; electron beam focusing; storage rings; NSLS X-ray Ring; dispersive straight sections; focusing effect; hardware upgrade requirements; horizontal emittance; insertion device straight sections; low emittance lattice; magnet structure; nonzero dispersion; operations lattice; Dispersion; Error correction; Extraterrestrial measurements; Hardware; Laboratories; Lattices; Light sources; Optical control; Stimulated emission; Synchrotrons;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1995., Proceedings of the 1995

Conference_Location

Dallas, TX

Print_ISBN

0-7803-2934-1

Type

conf

DOI

10.1109/PAC.1995.504631

Filename

504631