Author: Abbott, M.G.
Paper Title Page
TUCL03 Measurements of Longitudinal Coupled Bunch Instabilities and Status of New Feedback System 298
  • G. Rehm, M.G. Abbott, A.F.D. Morgan
    DLS, Oxfordshire, United Kingdom
  We have modified the vertical bunch-by-bunch feedback to also provide a longitudinal kick on a separate input. Using our existing drive/damp system and a modulator/amplifier to the required 1.5 GHz we are thus able to characterise the damping rates of all coupled bunch instabilities, while not able to provide feedback. At the same time, we have started the development of a completely new longitudinal feedback system based on commercially available components, providing 500MS/s, 14 bit conversion in and out, powerful Virtex 7 field programmable gate array for digital signal processing and 32GB of on board buffer for recording data. We report on the status of the development and our plans to bring the new system into use.  
slides icon Slides TUCL03 [2.897 MB]  
DOI • reference for this paper ※ DOI:10.18429/JACoW-IBIC2016-TUCL03  
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