Speaker
Description
The Ferninfrarot Linac- und Test-Experiment (FLUTE) at the Karlsruhe Institute of Technology is a compact linac test facility providing electron bunches with energies up to several tens of MeV over a wide charge range. A bunch compressor enables femtosecond-scale bunch lengths, making FLUTE a versatile platform for accelerator studies and the development of diagnostics for ultra-short bunches, as well as for generating intense THz radiation for photon science and applied studies.
The precise characterization of the near-field structure is a cornerstone for optimizing the generation of coherent THz pulses at FLUTE and for future experiments that exploit these strong fields for beam diagnostics. Here, we present preparatory experiments and first measurements of the transient electrical near field of electron bunches in the in-air section of FLUTE. Compared to measurements in vacuum sections, in-air measurements promise easier access and faster setup. Furthermore, the in-air characterization may provide useful information for irradiation studies in the same section. Fast THz-sensitive detectors are placed close to the beam axis to perform distance- and charge-dependent measurements.
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