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@inproceedings{marchetti:ipac2021-thpab035, author = {B. Marchetti and S. Casalbuoni and V. Grattoni and S. Serkez}, title = {{Study of the Tolerances for Superconducting Undulators at the European XFEL}}, booktitle = {Proc. IPAC'21}, pages = {3819--3822}, eid = {THPAB035}, language = {english}, keywords = {undulator, FEL, electron, simulation, photon}, venue = {Campinas, SP, Brazil}, series = {International Particle Accelerator Conference}, number = {12}, publisher = {JACoW Publishing, Geneva, Switzerland}, month = {08}, year = {2021}, issn = {2673-5490}, isbn = {978-3-95450-214-1}, doi = {10.18429/JACoW-IPAC2021-THPAB035}, url = {https://jacow.org/ipac2021/papers/thpab035.pdf}, note = {https://doi.org/10.18429/JACoW-IPAC2021-THPAB035}, abstract = {{European XFEL is investing in the development of superconducting undulators (SCUs) for future upgrade of its beamlines SCUs made of NbTi, working at 2K, with a period length of 15 mm and a vacuum gap of 5 mm allow covering a range between 54 keV and 100 keV for 17.5 GeV electron energy. The effect of mechanical errors in the distribution of K along the undulators is more relevant for working points at lower photon energy, which are obtained using a higher magnetic field in the undulator. In this article we investigate the effect of error distribution in the K-parameter for a working point at 50keV photon energy obtained injecting an electron beam with 16.5 GeV energy from the XFEL linear accelerator in a undulator line composed by SCUs with 1.58 T peak magnetic field.}}, }