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Increasing the Single-Bunch Instability Threshold by Bunch Splitting Due to RF Phase Modulation

Steinmann, Johannes Leonhard; Blomley, Edmund ORCID iD icon; Brosi, Miriam; Bründermann, Erik ORCID iD icon; Mochihashi, Akira; Müller, Anke-Susanne ORCID iD icon; Schönfeldt, Patrik; Schuh, Marcel ORCID iD icon


RF phase modulation at twice the synchrotron frequency can be used to split a stored electron bunch into two or more bunchlets orbiting each other. We report on time-resolved measurements at the Karlsruhe Research Accelerator (KARA), where this bunch splitting was used to increase the threshold current of the microbunching instability, happening in the short-bunch operation mode. Turning the modulation on and off reproducibly affects

Zugehörige Institution(en) am KIT Institut für Beschleunigerphysik und Technologie (IBPT)
Laboratorium für Applikationen der Synchrotronstrahlung (LAS)
Publikationstyp Poster
Publikationsjahr 2021
Sprache Englisch
Identifikator KITopen-ID: 1000137193
HGF-Programm 54.11.11 (POF IV, LK 01) Accelerator Operation, Research and Development
Veranstaltung 12th International Particle Accelerator Conference (IPAC 2021), Online, 24.05.2021 – 28.05.2021
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