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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; Caselle, Michele; Kehrer, Benjamin; Rota, Lorenzo; Schönfeldt, Patrik; Schuh, Marcel; Steffen, Bernd; Steinmann, Johannes L.; Weber, Marc; Müller, Anke-Susanne

Abstract:
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.

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