Wuppertal 2015 – scientific programme

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AKBP: Arbeitskreis Beschleunigerphysik

AKBP 3: RF, Resonators and Applications

AKBP 3.7: Talk

Monday, March 9, 2015, 18:15–18:30, BZ.08.06 (HS 1)

Status of Instability Damping-Rate Analysis Using Bunch-by-Bunch Feedback Systems at the DELTA Storage Ring* — Markus Höner, Shaukat Khan, Malte Sommer, •Christian Waldera, and Thomas Weis — Center for Synchrotron Radiation (DELTA), TU Dortmund University, Dortmund, Germany

At the 1.5-GeV electron storage ring DELTA (TU Dortmund), bunch-by-bunch feedback systems are in use to analyze and counteract transverse and longitudinal multi-bunch instabilities. Synchronous phase measurements for different filling patterns will be presented. Furthermore, a feedback-based method to measure the damping times of stable and unstable multi-bunch modes will be compared with images from a streak camera. The dependence of growth rates and instability thresholds on the beam energy will be discussed. *Work supported by the BMBF.