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- Title
X-ray beam diagnostics at the MID instrument of the European X-ray Free-Electron Laser Facility.
- Authors
Boesenberg, Ulrike; Ansaldi, Gabriele; Bartmann, Alexander; Batchelor, Lewis; Brausse, Felix; Hallmann, Jo¨rg; Jo, Wonhyuk; Chan Kim; Klein, Birthe; Lobato, Iker; Wei Lu; Mo¨ller, Johannes; Petrov, Ilia; Rodriguez-Fernandez, Angel; Schmidt, Andreas; Scholz, Markus; Shayduk, Roman; Sukharnikov, Konstantin; Zozulya, Alexey; Madsen, Anders
- Abstract
The Materials Imaging and Dynamics (MID) instrument at the European X-ray Free-Electron Laser Facility (EuXFEL) is equipped with a multipurpose diagnostic end-station (DES) at the end of the instrument. The imager unit in DES is a key tool for aligning the beam to a standard trajectory and for adjusting optical elements such as focusing lenses or the split-and-delay line. Furthermore, the DES features a bent-diamond-crystal spectrometer to disperse the spectrum of the direct beam to a line detector. This enables pulse-resolved characterization of the EuXFEL spectrum to provide X-ray energy calibration, and the spectrometer is particularly useful in commissioning special modes of the accelerator. Together with diamond-based intensity monitors, the imager and spectrometer form the DES unit which also contains a heavy-duty beamstop at the end of the MID instrument. Here, we describe the setup in detail and provide exemplary beam diagnostic results.
- Subjects
X-ray lasers; OPTICAL elements; SPECTROMETERS; X-ray spectra; FACILITIES
- Publication
Journal of Synchrotron Radiation, 2024, Vol 31, Issue 3, p596
- ISSN
0909-0495
- Publication type
Article
- DOI
10.1107/S1600577524001279