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Impact of the DIAD wiggler and ’missing-sextupole’ optics on the Diamond storage ring

DOI: 10.18429/JACoW-IPAC2019-TUPGW077 DOI Help

Authors: I. P. S. Martin (Diamond Light Source) , R. Bartolini (Diamond Light Source) , B. Singh (Diamond Light Source)
Co-authored by industrial partner: No

Type: Conference Paper
Conference: IPAC2019
Peer Reviewed: No

State: Published (Approved)
Published: June 2019

Open Access Open Access

Abstract: In order to generate space for a short, out-of-vacuum multipole wiggler for the DIAD beamline, a single sextupole was removed from one of the DBA arcs in the Diamond Storage Ring during June 2018. The removal of this sextupole presented a number of challenges to the operation of the storage ring, requiring a re-optimisation of the remaining sextupole strengths*, a change in tune-point and modification of the orbit and coupling correction schemes. In this paper we describe the implementation of these changes, and provide an assessment of the impact that the installed wiggler has made on the storage ring parameters.

Subject Areas: Technique Development

Technical Areas: Magnets , Optics