Dresden 2017 – wissenschaftliches Programm
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AKBP: Arbeitskreis Beschleunigerphysik
AKBP 7: Synchrotron Radiation and FELs
AKBP 7.8: Vortrag
Donnerstag, 23. März 2017, 11:30–11:45, MOL 213
Studies of the micro-bunching instability in multi-bunch operation at the ANKA storage ring — •Miriam Brosi1, Edmund Blomley2, Erik Bründermann2, Michele Caselle3, Benjamin Kehrer1, Andreas Kopmann3, Florian Rämisch1, Lorenzo Rota3, Manuel Schedler2, Patrik Schönfeldt2, Marcel Schuh1, Markus Schwarz1, Johannes L. Steinmann1, Marc Weber3, and Anke-Susanne Müller1,2 — 1LAS, KIT, Karlsruhe — 2IBPT, KIT, Karlsruhe — 3IPE, KIT, Karlsruhe
The test facility and synchrotron light source ANKA at 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 employing a dedicated bunch length-reducing optic at 1.3 GeV beam energy. The high degree of spatial compression leads to complex longitudinal dynamics and to time evolving sub-structures in the longitudinal phase space of the electron bunches. The results of the micro-bunching instability are time-dependent fluctuations and strong bursts in the radiated THz power. To study these fluctuations in the emitted THz radiation simultaneously for each individual bunch in a multi-bunch environment, fast THz detectors are combined with KAPTURE, the dedicated Karlsruhe Pulstaking and Ultrafast Readout Electronics system, developed at KIT. In this contribution we present measurements conducted to study possible multi-bunch effects on the characteristic bursting behavior of the micro-bunch instability.
Supported by BMBF (05K13VKA, 05K16VKA), the HGF (VH-NG-320) and the HIRST.