DMCA
Signal Processors
BibTeX
@MISC{Claus_signalprocessors,
author = {R. Claus and J. Fox and H. Hindi and I. Linscott and S. Prabhakar and W. Ross and D. Teytelman and A. Drago and M. Serio and Infn Frascati and G. Stover and Beam Bunches},
title = {Signal Processors},
year = {}
}
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Abstract
The operation of a longitudinal multi-bunch damping sys-tem using digital signal processing techniques is shown via measurements from the LBL Advanced Light Source. The feedback system (developed for use by PEP-II, ALS and DANE) uses a parallel array of signal processors to im-plement a bunch by bunch feedback system for sampling rates up to 500 MHz. The programmable DSP system al-lows feedback control as well as accelerator diagnostics. A diagnostic technique is illustrated which uses the DSP sys-tem to excite and then damp the beam. The resulting 12 ms time domain transient is Fourier analyzed to provide the si-multaneous measurement of growth rates and damping rates of all unstable coupled-bunch beam modes. 1 SYSTEM DESCRIPTION Figure 1 presents a block diagram of the processing system developed for use at the SLAC PEP-II accelerator.[1]
Keyphrases
signal processor bunch feedback system lbl advanced light source processing system accelerator diagnostics feedback system slac pep-ii accelerator dsp sys-tem si-multaneous measurement parallel array m time domain transient unstable coupled-bunch beam mode digital signal processing technique system description figure diagnostic technique block diagram growth rate
