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Diagnostics of short electron bunches with THz detectors in particle accelerators

Steinmann, Johannes

Abstract:
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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