Sensitivity of EEHG simulations to dynamic beam parameters
(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.
(Less)
- author
- organization
- publishing date
- 2023
- 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}}, }