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Sensitivity of EEHG simulations to dynamic beam parameters

Samoilenko, D ; Hillert, W ; Pannek, F ; Ackermann, S ; Ferrari, E ; Mirian, N ; Niknejadi, P ; Paraskaki, G ; Schaper, L and Curbis, F LU orcid , et al. (2023) 13th International Particle Accelerator Conference, IPAC 2022 In Journal of Physics: Conference Series 2420.
Abstract

Currently, the Free electron laser user facility FLASH at DESY is undergoing a significant upgrade involving the complete transformation of one of its beamlines to allow external seeding. With the Echo-Enabled Harmonic Generation (EEHG) seeding method, we aim for the generation of fully coherent XUV and soft X-ray pulses at wavelengths down to 4 nm. The generated FEL radiation is sensitive to various electron beam properties, e.g., its energy profile imprinted either deliberately or by collective effects such as Coherent Synchrotron Radiation (CSR). In dedicated particle tracking simulations, one usually makes certain assumptions concerning the beam properties and the collective effects to simplify implementation and analysis. Here, we... (More)

Currently, the Free electron laser user facility FLASH at DESY is undergoing a significant upgrade involving the complete transformation of one of its beamlines to allow external seeding. With the Echo-Enabled Harmonic Generation (EEHG) seeding method, we aim for the generation of fully coherent XUV and soft X-ray pulses at wavelengths down to 4 nm. The generated FEL radiation is sensitive to various electron beam properties, e.g., its energy profile imprinted either deliberately or by collective effects such as Coherent Synchrotron Radiation (CSR). In dedicated particle tracking simulations, one usually makes certain assumptions concerning the beam properties and the collective effects to simplify implementation and analysis. Here, we estimate the influence of some of the common assumptions made in EEHG simulations on the properties of the output FEL radiation, using the example of FLASH and its proposed seeding beamline. We conclude that the inherent properties of the FLASH1 beam, namely the negatively chirped energy profile, has dominant effect on the spectral intensity profile of the radiators output compare to that of the CSR induced chirp.

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organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
host publication
13th International Particle Accelerator Conference (IPAC'22) 12 - 17 June 2022, Bangkok, Thailand
series title
Journal of Physics: Conference Series
volume
2420
article number
012024
pages
6 pages
publisher
IOP Publishing
conference name
13th International Particle Accelerator Conference, IPAC 2022
conference location
Bangkok, Thailand
conference dates
2022-06-12 - 2022-06-17
external identifiers
  • scopus:85147194733
ISSN
1742-6588
DOI
10.1088/1742-6596/2420/1/012024
language
English
LU publication?
yes
additional info
Publisher Copyright: © 2023 Institute of Physics Publishing. All rights reserved.
id
211d5a2d-e985-4a23-abe3-1e556ab0161b
date added to LUP
2023-02-21 13:32:34
date last changed
2023-11-21 09:14:26
@inproceedings{211d5a2d-e985-4a23-abe3-1e556ab0161b,
  abstract     = {{<p>Currently, the Free electron laser user facility FLASH at DESY is undergoing a significant upgrade involving the complete transformation of one of its beamlines to allow external seeding. With the Echo-Enabled Harmonic Generation (EEHG) seeding method, we aim for the generation of fully coherent XUV and soft X-ray pulses at wavelengths down to 4 nm. The generated FEL radiation is sensitive to various electron beam properties, e.g., its energy profile imprinted either deliberately or by collective effects such as Coherent Synchrotron Radiation (CSR). In dedicated particle tracking simulations, one usually makes certain assumptions concerning the beam properties and the collective effects to simplify implementation and analysis. Here, we estimate the influence of some of the common assumptions made in EEHG simulations on the properties of the output FEL radiation, using the example of FLASH and its proposed seeding beamline. We conclude that the inherent properties of the FLASH1 beam, namely the negatively chirped energy profile, has dominant effect on the spectral intensity profile of the radiators output compare to that of the CSR induced chirp.</p>}},
  author       = {{Samoilenko, D and Hillert, W and Pannek, F and Ackermann, S and Ferrari, E and Mirian, N and Niknejadi, P and Paraskaki, G and Schaper, L and Curbis, F and Pop, M and Werin, S}},
  booktitle    = {{13th International Particle Accelerator Conference (IPAC'22) 12 - 17 June 2022, Bangkok, Thailand}},
  issn         = {{1742-6588}},
  language     = {{eng}},
  publisher    = {{IOP Publishing}},
  series       = {{Journal of Physics: Conference Series}},
  title        = {{Sensitivity of EEHG simulations to dynamic beam parameters}},
  url          = {{http://dx.doi.org/10.1088/1742-6596/2420/1/012024}},
  doi          = {{10.1088/1742-6596/2420/1/012024}},
  volume       = {{2420}},
  year         = {{2023}},
}