NDLI: Beam position feedback systems for the PF storage ring

Content Provider	IEEE Xplore Digital Library
Author	Nakamura, N. Haga, K. Honda, T. Kasuga, T. Katoh, M. Kobayashi, Y. Tadano, M. Yokoyama, M.
Copyright Year	1995
Description	Author affiliation: Photon Factory, Nat. Lab. for High Energy Phys., Ibaraki, Japan (Nakamura, N.; Haga, K.; Honda, T.; Kasuga, T.; Katoh, M.; Kobayashi, Y.; Tadano, M.)
Abstract	Two types of fast beam position feedback systems, global and local feedback systems, are proposed for a low-emittance configuration of the 2.5-GeV PF storage ring which will be started in 1997. The global feedback system corrects the closed orbit around the ring and the local feedback system stabilizes the beam positions and angles at insertion devices. Both systems are expected to suppress vibrations up to 50 Hz. For these systems, the beam position monitors will be improved to achieve fast data-taking and high position resolution, and the fast steering magnets and their power supplies will be reinforced. In the feedback control, VME bus-compatible DSP (digital signal processor) boards will be used for fast computation and a reflective memory network for fast data transfer. In a preliminary test, the global feedback DSP board was confirmed to have a computation performance enough for its purpose.
Starting Page	2720
Ending Page	2722
File Size	319787
Page Count	3
File Format	PDF
ISBN	0780329341
DOI	10.1109/PAC.1995.505671
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1995-05-01
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Storage rings Structural beams Magnets Digital signal processing Production facilities State feedback Vibrations Signal resolution Feedback control Electron beams
Content Type	Text
Resource Type	Article

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