X-ray beam diagnostics at the MID instrument of the European X-ray Free-Electron Laser Facility
Autor: | Ulrike Boesenberg, Gabriele Ansaldi, Alexander Bartmann, Lewis Batchelor, Felix Brausse, Jörg Hallmann, Wonhyuk Jo, Chan Kim, Birthe Klein, Iker Lobato, Wei Lu, Johannes Möller, Ilia Petrov, Angel Rodriguez-Fernandez, Andreas Schmidt, Markus Scholz, Roman Shayduk, Konstantin Sukharnikov, Alexey Zozulya, Anders Madsen |
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Jazyk: | angličtina |
Rok vydání: | 2024 |
Předmět: | |
Zdroj: | Journal of Synchrotron Radiation, Vol 31, Iss 3, Pp 596-604 (2024) |
Druh dokumentu: | article |
ISSN: | 1600-5775 16005775 |
DOI: | 10.1107/S1600577524001279 |
Popis: | 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. |
Databáze: | Directory of Open Access Journals |
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