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Diagnostics of short electron bunches with THz detectors in particle accelerators

Steinmann, Johannes ORCID iD icon


Several novel diagnostic systems based on the detection of coherent THz radiation are presented. Among others a heterodyne setup for highest spectral resolution at 270 GHz and the fastest THz single-shot spectrometer with 500 MHz repetition rate with continuous FPGA based readout were developed and commissioned. The investigation of the photon beam properties allow for bunch-by-bunch and turn-by-turn diagnostics of the emitting electron bunches in the accelerator. It is used for time-resolved studies of the micro-bunching instability for example in the vicinity of an RF phase modulation. The accompanying simulations were performed with the Vlasov-Fokker-Planck solver Inovesa and show a good agreement of simulation and measurement which enhances the knowledge of the physics behind the micro-bunching instability.

Zugehörige Institution(en) am KIT Institut für Beschleunigerphysik und Technologie (IBPT)
Laboratorium für Applikationen der Synchrotronstrahlung (LAS)
Publikationstyp Vortrag
Publikationsdatum 14.05.2020
Sprache Englisch
Identifikator KITopen-ID: 1000127934
HGF-Programm 54.01.01 (POF III, LK 01) ps- und fs-Strahlen
Veranstaltung 11th Internatioanl Particle Accelerator Conference (IPAC 2020), Online, 10.05.2020 – 15.05.2020
Externe Relationen Konferenz
Schlagwörter lowalpha, thzgruppe
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