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Evaluation of the global orbit correction algorithm for the APS real-time orbit feedback system

Conference ·
OSTI ID:541885
;  [1]
  1. Argonne National Lab., IL (United States). Advanced Photon Source
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.
Research Organization:
Argonne National Lab., IL (United States)
Sponsoring Organization:
USDOE Office of Energy Research, Washington, DC (United States)
DOE Contract Number:
W-31109-ENG-38
OSTI ID:
541885
Report Number(s):
ANL/ASD/CP--92233; CONF-970503--; ON: DE97053295
Country of Publication:
United States
Language:
English

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