Fast closed orbit control in the SLS storage ring

Autor:	T. Schilcher, R. Ursic, Micha Dehler, M. Böge, Volker Schlott
Rok vydání:	2003
Předmět:	Physics Position (vector) Control theory Singular value decomposition Physics::Accelerator Physics Sigma Vertical plane Thermal emittance Orbit (control theory) Accelerators and Storage Rings Beam (structure) Storage ring
Zdroj:	Proceedings of the 1999 Particle Accelerator Conference (Cat. No.99CH36366).
DOI:	10.1109/pac.1999.795471
Popis:	Concepts for a fast orbit feedback in the SLS storage ring are presented. The Singular Value Decomposition (SVD) based orbit correction scheme is supposed to fight orbit oscillations up to 100 Hz stabilizing the orbit to 1/10th of the beam sigma at the locations of the insertion devices. For an emittance ratio of 1%, this corresponds to 1 /spl mu/m tolerance in the vertical plane. In order to achieve this high accuracy strong restrictions are imposed on the residual noise of the beam position monitoring and the correction system. Theoretical estimates for the feedback gain are made using a simplified feedback model. The proposed layout of the feedback electronics based on the SLS digital BPM system is also described.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6c52fd88965b0ee62861449e67c89ba4 https://doi.org/10.1109/pac.1999.795471 Zobrazit plný text záznamu