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  Echevarria, P.; Knobloch, J.; Kuner, B.; Loewner, T.; Neumann, A.; Sayalero, A.; Ushakov, A.: LLRF control upgrade at BESSY-II with mTCA.4 platforms. In: Ralph Assmann [Ed.] : IPAC'23 : Proceedings of the 14th International Particle Accelerator Conference ; Venice, Italy from 7 to 12 May 2023Geneve: JACoW, 2023. - ISBN 978-3-95450-231-8, p. THPL045
  https://accelconf.web.cern.ch/ipac2023/pdf/THPL045.pdf

Open Access Version

Abstract:
The synchrotron light source BESSY-II has been in operation for almost 25 years and modernization measures are needed to maintain competitiveness until its successor BESSY-III comes online. One measure is to replace the old analogue LLRF control units with new, state of the art mTCA.4-based digital ones. The so-called “single cavity” firmware developed by DESY is being used together with the ChimeraTK adapter to connect the mTCA to the EPICS control system. A pair of SIS8300KU and a DWC8VM is used, while the tuner is driven by a PhyMotion chassis connected to the EPICS system. We discuss the implementation of the system.