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@inproceedings{baboi:ibic2022-mo3c4, author = {N. Baboi and H.T. Duhme and B. Lorbeer}, title = {{Beam Position Monitoring of Multi-bunch Electron Beams at the FLASH Free Electron Laser}}, & booktitle = {Proc. IBIC'22}, booktitle = {Proc. 11th Int. Beam Instrum. Conf. (IBIC'22)}, pages = {177--180}, eid = {MO3C4}, language = {english}, keywords = {electron, laser, cavity, free-electron-laser, photon}, venue = {Kraków, Poland}, series = {International Beam Instrumentation Conference}, number = {11}, publisher = {JACoW Publishing, Geneva, Switzerland}, month = {12}, year = {2022}, issn = {2673-5350}, isbn = {978-3-95450-241-7}, doi = {10.18429/JACoW-IBIC2022-MO3C4}, url = {https://jacow.org/ibic2022/papers/mo3c4.pdf}, abstract = {{The superconducting FLASH user facility (Free electron LASer in Hamburg) accelerates 10 electron bunch trains per second, which are mostly used to produce high brilliance XUV and soft X-ray pulses. Each train usually contains up to 600 electron bunches with a typical charge between 100 pC and 1 nC and a minimum bunch spacing of 1 us. Various types of beam position monitors (BPM) are built in three electron beam lines, having a single bunch resolution of 2-100 um rms. This paper presents multi-bunch position measurements for various types of BPMs and built in at various locations. The dependency of the resolution on the beam offset is also shown.}}, }