Contribution to a conference proceedings

PUBDB-2024-05778

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png OPTIMIZATION AND CHARACTERIZATION OF EXTERNALLY SEEDED FLASH1

Niknejadi, P. (Corresponding author)DESY* ; Ackermann, S.DESY* ; Ferrario, E. ; Lang, T.DESY* ; Paraskaki, G.Extern* ; Schaper, L.Extern*DESY* ; Schreiber, S.Extern* ; Vogt, M.DESY* ; Zemella, J.DESY* ; Amstutz, P. ; Asatrian, M.Extern* ; Hillert, W.CFEL*Extern* ; Pannek, F.Extern*XFEL.EU* ; Samoilenko, D.CFEL*Extern* ; Wenzel, H.Extern*

2024

Abstract: Externally seeded Free Electron Lasers (FELs), such as the upgraded FLASH1 at DESY, utilize external lasers to initiate bunching, contrasting with the self-amplification of spontaneous emission (SASE). This upgraded facility will offer simultaneous seeded and SASE pulses. Introducing a chirped electron bunch and high repetition rate seed lasers with unique spectral features will significantly influence the electron bunching and the spectral properties of the output. This work discusses our computational modeling strategies for aligning theoretical predictions closely with anticipated experimental outcomes, focusing on the dynamics of chirped bunch interactions with beamline instability and some of their effect on the FEL outputs.

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Contributing Institute(s):

1. Beschleunigerphysik (MPY)
2. Maschinen Koordination FLASH (MFL)
3. Laser Forschung und Entwicklung (FS-LA)

Research Program(s):

1. 6G2 - FLASH (DESY) (POF4-6G2) (POF4-6G2)
2. 621 - Accelerator Research and Development (POF4-621) (POF4-621)

Experiment(s):

1. FLASH 2020+ Project

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