ELI Beamlines is an international laser research facility located outside Prague, CZ. Four high-power (up to 10 PW) femtosecond pulse lasers serve as light sources for experiments in several branches of physics. Although control of a high-power laser beam poses different challenges than a synchrotron does, there is a common ground in the operation of support systems, safety, timing, data...
The European XFEL is equipped with cavity, re-entrant and button BPMs up to the dump where the electron beam with up to 17.5 GeV hit graphite. The BPMs near to the dump get additional background signals which decreases the calculated beam position. The problem will be described and I hope we can discuss solutions.
The research and development of the new button BPM initiated by the BESSY VSR upgrade project have progressed in various physical and engineering aspects. Over the past years, the underlying idea such as impedance matching structure has been demonstrated experimentally and engineering details for applying a glass insulator is studied. This presentation will discuss the facts verified in the...
