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@inproceedings{potter:ipac2021-tupab125,
author = {A.T. Potter and W. Decking and F. Jackson and S. Liu and A. Wolski},
title = {{Studies of Particle Losses From the Beam in the EU-XFEL Following Scattering by a Slotted Foil}},
booktitle = {Proc. IPAC'21},
pages = {1681--1684},
eid = {TUPAB125},
language = {english},
keywords = {undulator, radiation, FEL, simulation, diagnostics},
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-TUPAB125},
url = {https://jacow.org/ipac2021/papers/tupab125.pdf},
note = {https://doi.org/10.18429/JACoW-IPAC2021-TUPAB125},
abstract = {{One technique for producing short radiation pulses in an FEL involves the use of a slotted foil in a bunch compressor. However, the scattering of particles from the foil can lead to increased particle losses and the generation of secondary particles. This is a particular concern for high rep-rate FELs, such as the European XFEL, where there are plans to implement the slotted-foil technique for short pulse generation. The study reported here aims to characterise the impact of a slotted foil in the European XFEL on the radiation dose in the front section of one of the undulators. Simulations were performed using BDSIM: this code tracks primary particles along the beamline, models the interaction between particles and accelerator components and tracks secondary particles produced by these interactions. The results indicate the amount of energy deposited in the front section of one of the FEL undulators, and provide a basis for optimisation of the collimation system to keep the energy deposition and radiation doses within acceptable limits.}},
}