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Diagnostics for Electron Pulse Trains at SwissFEL Obtained by Energy Modulation in a Laser-Driven Dielectric Structure

Hermann, Benedikt ; Bettoni, Simona ; Egenolf, Thilo ; Feurer, Thomas ; Frei, Franziska ; Niedermayer, Uwe ; Prat, Eduard ; Ischebeck, Rasmus (2024)
Diagnostics for Electron Pulse Trains at SwissFEL Obtained by Energy Modulation in a Laser-Driven Dielectric Structure.
In: Journal of Physics: Conference Series, 2020, 1596
doi: 10.26083/tuprints-00021274
Artikel, Zweitveröffentlichung, Verlagsversion

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Kurzbeschreibung (Abstract)

Electron pulse trains with sub-femtosecond spike length offer novel possibilities to ultra-fast pump-probe experiments in free-electron lasers. The pulse train can be generated by an energy modulation which is converted to temporal bunching in a magnetic chicane. The source of the energy modulation is typically a resonant interaction with a co-propagating laser in a wiggler magnet. Alternatively, the modulation can be obtained by a dielectric laser accelerator (DLA). The implementation of the DLA modulation scheme at SwissFEL would be enabled by using the experimental chamber installed in the framework of the Accelerator-on-a-Chip International Program (ACHIP) and a magnetic chicane placed afterwards. In this contribution, we will focus on electron beam diagnostics for the DLA-modulated and compressed electron bunch train. Our simulation results predict that measuring the energy spread of the modulated beam and coherent diffraction radiation emitted from a foil with a hole provides a precise tool to characterize and optimize the laser-electron modulation. An absolute measurement of the longitudinal phase-space with a temporal rms-resolution of 350 as is possible with the planned X-band transverse deflecting cavity in Athos.

Typ des Eintrags: Artikel
Erschienen: 2024
Autor(en): Hermann, Benedikt ; Bettoni, Simona ; Egenolf, Thilo ; Feurer, Thomas ; Frei, Franziska ; Niedermayer, Uwe ; Prat, Eduard ; Ischebeck, Rasmus
Art des Eintrags: Zweitveröffentlichung
Titel: Diagnostics for Electron Pulse Trains at SwissFEL Obtained by Energy Modulation in a Laser-Driven Dielectric Structure
Sprache: Englisch
Publikationsjahr: 11 Juni 2024
Ort: Darmstadt
Publikationsdatum der Erstveröffentlichung: 2020
Ort der Erstveröffentlichung: Bristol
Verlag: IOP Publishing
Titel der Zeitschrift, Zeitung oder Schriftenreihe: Journal of Physics: Conference Series
Jahrgang/Volume einer Zeitschrift: 1596
Kollation: 7 Seiten
DOI: 10.26083/tuprints-00021274
URL / URN: https://tuprints.ulb.tu-darmstadt.de/21274
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Herkunft: Zweitveröffentlichung DeepGreen
Kurzbeschreibung (Abstract):

Electron pulse trains with sub-femtosecond spike length offer novel possibilities to ultra-fast pump-probe experiments in free-electron lasers. The pulse train can be generated by an energy modulation which is converted to temporal bunching in a magnetic chicane. The source of the energy modulation is typically a resonant interaction with a co-propagating laser in a wiggler magnet. Alternatively, the modulation can be obtained by a dielectric laser accelerator (DLA). The implementation of the DLA modulation scheme at SwissFEL would be enabled by using the experimental chamber installed in the framework of the Accelerator-on-a-Chip International Program (ACHIP) and a magnetic chicane placed afterwards. In this contribution, we will focus on electron beam diagnostics for the DLA-modulated and compressed electron bunch train. Our simulation results predict that measuring the energy spread of the modulated beam and coherent diffraction radiation emitted from a foil with a hole provides a precise tool to characterize and optimize the laser-electron modulation. An absolute measurement of the longitudinal phase-space with a temporal rms-resolution of 350 as is possible with the planned X-band transverse deflecting cavity in Athos.

ID-Nummer: Artikel-ID: 012046
Status: Verlagsversion
URN: urn:nbn:de:tuda-tuprints-212744
Zusätzliche Informationen:

4th European Advanced Accelerator Concepts Workshop 15-20 September 2019, Isola d'Elba, Italy.

Sachgruppe der Dewey Dezimalklassifikatin (DDC): 500 Naturwissenschaften und Mathematik > 530 Physik
600 Technik, Medizin, angewandte Wissenschaften > 621.3 Elektrotechnik, Elektronik
Fachbereich(e)/-gebiet(e): 18 Fachbereich Elektrotechnik und Informationstechnik
18 Fachbereich Elektrotechnik und Informationstechnik > Institut für Teilchenbeschleunigung und Theorie Elektromagnetische Felder
Hinterlegungsdatum: 11 Jun 2024 09:25
Letzte Änderung: 18 Jun 2024 06:51
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