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Performance of the fast orbit feedback system with the double-double bend achromat Installed in Diamond Light Source

DOI: 10.18429/JACoW-IPAC2017-TUPIK113 DOI Help

Authors: S. Gayadeen (Diamond Light Source) , G. Rehm (Diamond Light Source)
Co-authored by industrial partner: No

Type: Conference Paper
Conference: IPAC2017
Peer Reviewed: No

State: Published (Approved)
Published: May 2017

Open Access Open Access

Abstract: At Diamond Light Source, the Double-Double Bend Achromat (DDBA) lattice upgrade involved the conversion of one cell of the storage ring from a double bend achromat (DBA) structure to a double-DBA (DDBA). The new cell includes corrector magnets that are different in design to the DBA corrector magnets. The DDBA vacuum chamber cross section is also different from the DBA cells and includes both stainless steel and copper sections over which corrector magnets are fitted. The performance of the Fast Orbit Feedback (FOFB) used for electron beam stabilisation with the DDBA cell installed is presented in this paper. Firstly the different corrector magnet dynamic responses are characterised and secondly the closed loop performance of the FOFB is measured and analysed for the upgraded lattice.

Journal Keywords: storage-ring; feedback; sextupole; controls; vacuum

Subject Areas: Engineering

Technical Areas: Magnets

Added On: 27/06/2017 13:55


Discipline Tags:

Engineering & Technology

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