FRCOBAB02
DESY, Hamburg, Germany
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FRCOBAB02 |
Ultra-fast Longitudinal Feedbacks for the European XFEL | |
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| Free Electron Lasers, like the European XFEL, a 3.5 km long accelerator complex under construction in Hamburg, put stringent demands on the stabilization and the control of the electron beam properties. The pulsed superconducting RF accelerator of the European XFEL can provide more than thirty thousand Angstrom wavelength laser pulses per second to various types of X-ray user experiments. Ideally, these laser pulses have constant properties from shot-to-shot, such as central wavelength, duration, arrival-time and intensity. However, to meet these goals, multiple slow- and fast-feedback loops acting on the RF system have to operate in concert. In this paper, the new MTCA.4 based hardware architecture, MIMO FPGA feedback algorithm, and the cascaded feedback architecture based on RF-signals and beam based measurements relative to a femtosecond synchronization system is presented. | ||
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Slides FRCOBAB02 [3.633 MB] | |