Egenolf, Thilo ; Niedermayer, Uwe ; Boine-Frankenheim, Oliver (2020)
Tracking with wakefields in dielectric laser acceleration grating structures.
In: Physical Review Accelerators and Beams, 23 (5)
doi: 10.1103/physrevaccelbeams.23.054402
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Due to the tiny apertures of dielectric laser acceleration grating structures within the range of the optical wavelength, wakefields limit the bunch charge for relativistic electrons to a few femtocoulomb. In this paper, we present a wakefield upgrade of our six-dimensional tracking scheme DLAtrack6D in order to analyze these limitations. Simulations with CST Studio Suite provide the wake functions to calculate the kicks within each tracking step. Scaling laws and the dependency of the wake on geometrical changes are calculated. The tracking with wakefields is applied to beam and structure parameters following recently performed and planned experiments. We compare the results to analytical models and identify intensity limits due to the transverse beam breakup and strong head-tail instability. Furthermore, we reconstruct phase advance spectrograms and use them to analyze possible stabilization mechanisms.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2020 |
| Autor(en): | Egenolf, Thilo ; Niedermayer, Uwe ; Boine-Frankenheim, Oliver |
| Art des Eintrags: | Bibliographie |
| Titel: | Tracking with wakefields in dielectric laser acceleration grating structures |
| Sprache: | Englisch |
| Publikationsjahr: | 7 Mai 2020 |
| Verlag: | APS Physics |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Physical Review Accelerators and Beams |
| Jahrgang/Volume einer Zeitschrift: | 23 |
| (Heft-)Nummer: | 5 |
| DOI: | 10.1103/physrevaccelbeams.23.054402 |
| Kurzbeschreibung (Abstract): | Due to the tiny apertures of dielectric laser acceleration grating structures within the range of the optical wavelength, wakefields limit the bunch charge for relativistic electrons to a few femtocoulomb. In this paper, we present a wakefield upgrade of our six-dimensional tracking scheme DLAtrack6D in order to analyze these limitations. Simulations with CST Studio Suite provide the wake functions to calculate the kicks within each tracking step. Scaling laws and the dependency of the wake on geometrical changes are calculated. The tracking with wakefields is applied to beam and structure parameters following recently performed and planned experiments. We compare the results to analytical models and identify intensity limits due to the transverse beam breakup and strong head-tail instability. Furthermore, we reconstruct phase advance spectrograms and use them to analyze possible stabilization mechanisms. |
| Fachbereich(e)/-gebiet(e): | 18 Fachbereich Elektrotechnik und Informationstechnik 18 Fachbereich Elektrotechnik und Informationstechnik > Institut für Teilchenbeschleunigung und Theorie Elektromagnetische Felder > Beschleunigerphysik 18 Fachbereich Elektrotechnik und Informationstechnik > Institut für Teilchenbeschleunigung und Theorie Elektromagnetische Felder |
| Hinterlegungsdatum: | 17 Feb 2023 07:54 |
| Letzte Änderung: | 27 Jun 2023 16:10 |
| PPN: | 509088988 |
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