TY  - JOUR
AU  - Casalbuoni, Sara
AU  - Abeghyan, Suren
AU  - Alanakyan, Levon
AU  - Baader, Johann
AU  - Barbanotti, Serena
AU  - Decking, Winfried
AU  - Felice, Massimiliano Di
AU  - Eckoldt, Hans-Jörg
AU  - Englisch, Uwe
AU  - Geloni, Gianluca
AU  - Grattoni, Vanessa
AU  - Grau, Andreas
AU  - Hauberg, Axel
AU  - Helwich, Christian
AU  - Hobl, Achim
AU  - Jensch, Kay
AU  - Karabekyan, Suren
AU  - Civita, Daniele La
AU  - Lederer, Sven
AU  - Lechner, Christoph
AU  - Lilje, Lutz
AU  - Liu, Shan
AU  - Marchetti, Barbara
AU  - Potter, Andrew
AU  - Schnautz, Tobias
AU  - Schneidmiller, Evgeny
AU  - Sinn, Harald
AU  - Walter, Wolfgang
AU  - Wichmann, Riko
AU  - Wohlenberg, Torsten
AU  - Yakopov, Grigory
AU  - Yakopov, Mikhail
AU  - Zagorodnov, Igor
AU  - Zimmermann, René
AU  - Ziolkowski, Pawel
TI  - Superconducting undulator activities at the European X-ray Free-Electron Laser Facility
JO  - Frontiers in physics
VL  - 11
SN  - 2296-424X
CY  - Lausanne
PB  - Frontiers Media
M1  - PUBDB-2023-07506
SP  - 1204073
PY  - 2023
AB  - For more than 5 years, superconducting undulators (SCUs) have been successfully delivering X-rays in storage rings. The European X-Ray Free-Electron Laser Facility (XFEL) plans to demonstrate the operation of SCUs in X-ray free-electron lasers (FELs). For the same geometry, SCUs can reach a higher peak field on the axis with respect to all other available technologies, offering a larger photon energy tunability range. The application of short-period SCUs in a high electron beam energy FEL > 11 GeV will enable lasing at very hard X-rays > 40 keV. The large tunability range of SCUs will allow covering the complete photon energy range of the soft X-ray experiments at the European XFEL without changing electron beam energy, as currently needed with the installed permanent magnet undulators. For a possible continuous-wave (CW) upgrade under discussion at the European XFEL with a lower electron beam energy of approximately 7–8 GeV, SCUs can provide the same photon energy range as available at present with the permanent magnet undulators and electron energies. This paper will describe the potential of SCUs for X-ray FELs. In particular, it will focus on the different activities ongoing at the European XFEL and in collaboration with DESY to allow the implementation of SCUs in the European XFEL in the upcoming years.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:001024102900001
DO  - DOI:10.3389/fphy.2023.1204073
UR  - https://bib-pubdb1.desy.de/record/599780
ER  -