Author: Schulz, J.
Paper Title Page
WEPA15
A Rapid Two Axis Scanner for Vacuum Environments With High EMP  
 
  • C. Deiter, M. Kitel, J. Schulz
    EuXFEL, Schenefeld, Germany
 
  Funding: This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 654220
We present a two axis scanner for the rapid scanning of solid samples up to 10 Hz in vacuum under harsh EMP conditions. The samples are carried by a standardized sample frame system developed in the EUCALL project (2015-2018, WP6 HIREP) and can be transferred without breaking the vacuum conditions of the interaction chamber. All electronic devices inside the chamber, where the high-power laser shot and the FEL’s X-ray pulses hit the sample, can be disconnected with 10 Hz. To ensure a continuous monitoring of the sample’s position, the role of the encoder is taken over by an interferometer with only optical components inside the chamber. The linear stages are powered by high frequency piezo motors capable to do power cycles with up to 1 kHz. The scanner is controlled by the Beckhoff EtherCAT automation system with an in-house software framework.
 
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