The European XFEL is a hard X-ray free-electron laser (FEL) based on a high-electron-energy superconducting linear accelerator. The superconducting technology allows for the acceleration of many electron bunches within one radio-frequency pulse of the accelerating voltage and, in turn, for the generation of a large number of hard X-ray pulses. In this paper, we report on the performance of the European XFEL accelerator with up to 5,000 electron bunches per second and demonstrating a full energy of 17.5 GeV. Feedback mechanisms enable stabilization of the electron beam delivery at the FEL undulator in space and time. The measured FEL gain curve at 9.3 keV is in good agreement with predictions for saturated FEL radiation. Hard X-ray lasing was achieved between 7 keV and 14 keV with pulse energies of up to 2.0 mJ. Using the high repetition rate, an FEL beam with 6 W average power was created.
Decking, W., et al. "A MHz-repetition-rate hard X-ray free-electron laser driven by a superconducting linear accelerator." Nature Photonics, vol. 14, no. 6, May. 2020. https://doi.org/10.1038/s41566-020-0607-z
Decking, W., Abeghyan, S., Abramian, P., Abramsky, A., Aguirre, A., Albrecht, C., Alou, P., Altarelli, M., Altmann, P., Amyan, K., Anashin, V., Apostolov, E., Appel, K., Auguste, D., Ayvazyan, V., Baark, S., Babies, F., Baboi, N., ... Zybin, D. (2020). A MHz-repetition-rate hard X-ray free-electron laser driven by a superconducting linear accelerator. Nature Photonics, 14(6). https://doi.org/10.1038/s41566-020-0607-z
Decking, W., Abeghyan, S., Abramian, P., et al., "A MHz-repetition-rate hard X-ray free-electron laser driven by a superconducting linear accelerator," Nature Photonics 14, no. 6 (2020), https://doi.org/10.1038/s41566-020-0607-z
@article{osti_1638151,
author = {Decking, W. and Abeghyan, S. and Abramian, P. and Abramsky, A. and Aguirre, A. and Albrecht, C. and Alou, P. and Altarelli, M. and Altmann, P. and Amyan, K. and others},
title = {A MHz-repetition-rate hard X-ray free-electron laser driven by a superconducting linear accelerator},
annote = {The European XFEL is a hard X-ray free-electron laser (FEL) based on a high-electron-energy superconducting linear accelerator. The superconducting technology allows for the acceleration of many electron bunches within one radio-frequency pulse of the accelerating voltage and, in turn, for the generation of a large number of hard X-ray pulses. In this paper, we report on the performance of the European XFEL accelerator with up to 5,000 electron bunches per second and demonstrating a full energy of 17.5 GeV. Feedback mechanisms enable stabilization of the electron beam delivery at the FEL undulator in space and time. The measured FEL gain curve at 9.3 keV is in good agreement with predictions for saturated FEL radiation. Hard X-ray lasing was achieved between 7 keV and 14 keV with pulse energies of up to 2.0 mJ. Using the high repetition rate, an FEL beam with 6 W average power was created.},
doi = {10.1038/s41566-020-0607-z},
url = {https://www.osti.gov/biblio/1638151},
journal = {Nature Photonics},
issn = {ISSN 1749-4885},
number = {6},
volume = {14},
place = {United States},
publisher = {Nature Publishing Group},
year = {2020},
month = {05}}
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 237, Issue 1-2https://doi.org/10.1016/0168-9002(85)90344-4
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 393, Issue 1-3https://doi.org/10.1016/S0168-9002(97)00434-8
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 429, Issue 1-3https://doi.org/10.1016/S0168-9002(99)00117-5
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 605, Issue 3https://doi.org/10.1016/j.nima.2009.03.217
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 833https://doi.org/10.1016/j.nima.2016.07.002
Grünert, Jan; Carbonell, Marc Planas; Dietrich, Florian
PROCEEDINGS OF THE 13TH INTERNATIONAL CONFERENCE ON SYNCHROTRON RADIATION INSTRUMENTATION – SRI2018, AIP Conference Proceedingshttps://doi.org/10.1063/1.5084577