Contributions to a conference proceedings

The major challenge of Research in bone surgery is to develop strategies to repair large bone defects. Bone grafting technique is the gold standard to fill and heal these kind of defects. [...]

At present 26 RF stations for European XFEL are inoperation. Each RF station consists of a HV modulatorlocated in a separate building on the DESY campus, up to1600 m long 10 kV HV cables that connect the modulatorand the HV pulse transformer located in the undergroundtunnel, 120kV, 3 m long HV cable connecting the HVpulse transformer and the connection module (CM) of thehorizontal multi-beam klystron (MBK). [...]

The European XFEL uses 100 accelerating cryomodules. One RF station with 10 MW klystron supplies, through a waveguide distribution, four cryomodules with eight cavities each. [...]

The RF system for the European XFEL consists of 26 high power RF stations each capable of 10MW RF pulse power. This paper will report on the overall system layout, cover RF system components e.g. [...]

The rapid development in the field of digitizers is leading to Analog-to-Digital Converters (ADC) with ever higher sampling rates. Nowadays many high-speed digitizers for RF applications and radio communication are available, which can sample broadband signals, without the need of down converters. [...]

Three electro-optical bunch length detection systems based on spectral decoding have been installed and are being commissioned at the European XFEL. The systems are capable of recording individual longitudinal bunch profiles with sub-picosecond resolution at a bunch repetition rate 1.13 MHz. [...]

The cross sections fo the dijet production in diffractive deep-inelastic scattering are calculated forthe first time in next-to-next-to-leading accuracy. The next-to-next-to-leading order correctionsare found to be positive and sizable. [...]