Keyword: damping
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MOPKS027 Operational Status of theTransverse Multibunch Feedback System at Diamond feedback, FPGA, controls, operation 219
  • I. Uzun, M.G. Abbott, M.T. Heron, A.F.D. Morgan, G. Rehm
    Diamond, Oxfordshire, United Kingdom
  A transverse multibunch feedback (TMBF) system is in operation at Diamond Light Source to damp coupled-bunch instabilities up to 250 MHz in both the vertical and horizontal planes. It comprises an in-house designed and built analogue front-end combined with a Libera Bunch-by-Bunch feedback processor and output stripline kickers. FPGA-based feedback electronics is used to implement several diagnostic features in addition to the basic feedback functionality. This paper reports on the current operational status of the TMBF system along with its characteristics. Also discussed are operational diagnostic functionalities including continuous measurement of the betatron tune and chromaticity.  
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