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High-chromaticity Optics for the MAX IV 1.5 GeV Storage Ring

På svenska

Author

  • Teresia Olsson
  • Simon Leemann

Summary, in English

The MAX IV facility currently under construction in Lund, Sweden will include a 1.5 GeV storage ring. To prevent head-tail instability, the negative natural chromaticities of the MAX IV 1.5 GeV storage ring have been corrected to positive values using sextupole gradients in the focusing quadrupoles along with dedicated sextupole magnets. To allow adjustment of the chromaticity correction, weak correction sextupoles have been inserted into the lattice. A high-chromaticity optics has been developed for the MAX IV 1.5 GeV storage ring in case instability issues arise during commissioning. Two chromatic sextupole families were used to correct the linear chromaticity. The tune footprint was then tailored using the remaining two sextupole families with the goal of maximizing dynamic aperture and Touschek lifetime. This paper describes the recently developed high-chromaticity optics for the MAX IV 1.5 GeV storage ring and discusses performance limitations of the optics constrained by available gradient strength in the sextupoles.

Department/s

Publishing year

2014

Language

English

Pages

3053-3055

Publication/Series

Proceedings of IPAC’14

Document type

Conference paper

Publisher

JACoW Publishing

Topic

  • Natural Sciences
  • Physical Sciences

Conference name

5th International Particle Accelerator Conference, IPAC 2014

Conference date

2014-06-15 - 2014-06-20

Conference place

Dresden, Germany

Status

Published

ISBN/ISSN/Other

  • ISBN: 978-3-95450-115-1