Wuppertal 2015 – wissenschaftliches Programm
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AKBP: Arbeitskreis Beschleunigerphysik
AKBP 1: Synchrotron Radiation
AKBP 1.3: Vortrag
Montag, 9. März 2015, 14:30–14:45, BZ.08.06 (HS 1)
Studies of THz-radiation in the Bursting Regime at ANKA in Multi-Bunch Operation — •Miriam Brosi1, Michelle Caselle4, Johannes Steinmann1, Patrik Schönfeldt3, Edmund Hertle3, Nicole Hiller3, Anke-Susanne Müller1,2,3, Marc Weber4, and Andreas Kopmann4 — 1LAS, KIT, Karlsruhe — 2ANKA, KIT, Karlsruhe — 3IPS, KIT, Karlsruhe — 4IPE, KIT, Karlsruhe
The ANKA storage ring of the Karlsruhe Institute of Technology (KIT) operates in the energy range from 0.5 to 2.5 GeV and can generate brilliant coherent synchrotron radiation in the THz range with a dedicated bunch length-reducing optic. The high degree of longitudinal compression in this so-called low-alpha optics leads to complex longitudinal dynamics of the electron bunches. The resulting micro-bunching instability leads to time dependent fluctuations and strong bursts in the radiated THz power. The study of these fluctuations in the emitted THz radiation provides insight into the longitudinal beam dynamics. Fast THz detectors combined with KAPTURE, the dedicated KArlsruhe Pulstaking and Ultrafast Readout Electronics system developed at KIT, allow the simultaneous measurement of the radiated THz intensity for each bunch individually in a multi-bunch environment.