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Revealing the dynamics of ultrarelativistic non-equilibrium many-electron systems with phase space tomography

Funkner, Stefan; Niehues, Gudrun; Nasse, Michael J.; Bründermann, Erik ORCID iD icon; Caselle, Michele; Kehrer, Benjamin; Rota, Lorenzo; Schönfeldt, Patrik; Schuh, Marcel; Steffen, Bernd; Steinmann, Johannes L. ORCID iD icon; Weber, Marc; Müller, Anke-Susanne ORCID iD icon


The description of physical processes with many-particle systems is a key approach to the modeling of countless physical systems. In storage rings, where ultrarelativistic particles are agglomerated in dense bunches, the measurement of their phase-space distribution (PSD) is of paramount importance: at any time the PSD not only determines the complete space-time evolution but also provides fundamental performance characteristics for storage ring operation. Here, we demonstrate a non-destructive tomographic imaging technique for the 2D longitudinal PSD of ultrarelativistic electron bunches. For this purpose, we utilize a unique setup, which streams turn-by-turn near-field measurements of bunch profiles at MHz repetition rates. To demonstrate the feasibility of our method, we induce a non-equilibrium state and show, that the PSD microstructuring as well as the PSD dynamics can be observed in great detail with an unprecedented resolution. Our approach offers a pathway to control ultrashort bunches and supports, as one example, the development of compact accelerators with low energy footprints.

Zugehörige Institution(en) am KIT Institut für Beschleunigerphysik und Technologie (IBPT)
Institut für Prozessdatenverarbeitung und Elektronik (IPE)
Laboratorium für Applikationen der Synchrotronstrahlung (LAS)
Publikationstyp Forschungsbericht/Preprint
Publikationsjahr 2019
Sprache Englisch
Identifikator KITopen-ID: 1000100535
HGF-Programm 54.01.01 (POF III, LK 01) ps- und fs-Strahlen
Weitere HGF-Programme 54.02.02 (POF III, LK 01) Ultraschnelle Datenauswertung
Vorab online veröffentlicht am 03.12.2019
Nachgewiesen in arXiv
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