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TY - CONF AU - Steinhorst, M. AU - Arnold, M. AU - Bahlo, T. AU - Grewe, R. AU - Jürgensen, L.E. AU - Pforr, J. AU - Pietralla, N. AU - Schließmann, F. AU - Weih, S. ED - Meseck, Atoosa ED - McAteer, Meghan ED - Schaa, Volker R.W. ED - V\xF6lker, Jens TI - Low Level RF ERL Experience at the S-DALINAC* J2 - Proc. of ERL2019, Berlin, Germany, 15-20 September 2019 CY - Berlin, Germany T2 - ICFA Advanced Beam Dynamics Workshop on Energy Recovery Linacs T3 - 63 LA - english AB - The recirculating superconducting Darmstadt linear accelerator S-DALINAC [1] is one of the main research instruments at the institute for nuclear physics at the TU Darmstadt. It is operating in cw mode at beam currents of up to 20 uA with energies of up to 130 MeV using a thrice recirculating scheme. In 2010 the present digital low-level rf (LLRF) control system was set into operation. Since 2017 the S-DALINAC can be used as an energy recovery linac (ERL). The ERL mode is adjusted by shifting the phase of the beam by 180° in the second recirculation. The current setup of the LLRF control system is not optimized for the usage in an ERL operation. Therefore investigations in regard of the rf control performance have to be done. The first successful one turn ERL operation was set up in August 2017 where the rf control performance was investigated the first time in this new mode. In this talk the LLRF control system of the S-DALINAC is presented and its perfomance during an ERL operation is discussed. PB - JACoW Publishing CP - Geneva, Switzerland SP - 52 EP - 55 KW - cavity KW - operation KW - controls KW - beam-loading KW - linac DA - 2020/06 PY - 2020 SN - 978-3-95450-217-2 DO - doi:10.18429/JACoW-ERL2019-TUCOZBS05 UR - http://jacow.org/erl2019/papers/tucozbs05.pdf ER -