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Mainz 2022 – scientific programme

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AKBP: Arbeitskreis Beschleunigerphysik

AKBP 11: Beam Dynamics 2

AKBP 11.2: Talk

Wednesday, March 30, 2022, 16:15–16:30, AKBP-H13

Beam dynamics studies by long-term observation of coherently emitted THz pulses at DELTA — •Carsten Mai, Benedikt Büsing, Arne Held, and Shaukat Khan — Center for Synchrotron Radiation (DELTA), TU Dortmund University, Dortmund, Germany

At DELTA, a 1.5-GeV electron storage ring operated as a synchrotron light source by the TU Dortmund University, experiments with THz radiation are carried out at a dedicated beamline. An interaction of short laser pulses with electron bunches is used to generate broadband as well as tunable narrowband radiation up to 6 THz. Coherent emission of (sub-)THz pulses is typically observed during several storage ring revolutions after the initial laser-electron interaction. However, a coherent emission is observed at half-integer multiples of the synchrotron oscillation period after the interaction because the density in the longitudinal phase space is similar to the initial situation. Experimental results and simulations of the longitudinal phase space are presented.

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