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Abstract

After surveying available solutions in 2011, the European XFEL decided to write a custom control and data processing system for its photon beam-lines and scientific instruments from scratch. At the end of 2016, Karabo version 2 was released and has since then been used to commission the facility and execute the first user experiments. A system complexity as required for these tasks could never be simulated before hand which means that substantial improvements were needed to make Karabo as reliable and high performance as needed to control the equipment. This poster guides through the main technical problems from which Karabo suffered (concentrating on the C++ implementation), and the means to overcome them to smoothly operate the European XFEL facility.

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