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Carwardine, J.; Evans, K. Jr.
Argonne National Lab., IL (United States). Funding organisation: USDOE Office of Energy Research, Washington, DC (United States)1997
Argonne National Lab., IL (United States). Funding organisation: USDOE Office of Energy Research, Washington, DC (United States)1997
AbstractAbstract
[en] The APS real-time orbit feedback system uses 38 correctors per plane and has available up to 320 rf beam position monitors. Orbit correction is implemented using multiple digital signal processors. Singular value decomposition is used to generate a correction matrix from a linear response matrix model of the storage ring lattice. This paper evaluates the performance of the APS system in terms of its ability to correct localized and distributed sources of orbit motion. The impact of regulator gain and bandwidth, choice of beam position monitors, and corrector dynamics are discussed. The weighted least-squares algorithm is reviewed in the context of local feedback
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1997; 5 p; 17. IEEE particle accelerator conference; Vancouver (Canada); 12-16 May 1997; CONF-970503--; CONTRACT W-31109-ENG-38; ALSO AVAILABLE FROM ALSO AVAILABLE FROM ALSO AVAILABLE FROM OSTI AS DE97053295; NTIS; US GOVT. PRINTING OFFICE DEP
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