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Würzburg 2018 – scientific programme

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AKBP: Arbeitskreis Beschleunigerphysik

AKBP 6: Synchrotron Radiation Sources (SR and FEL)

AKBP 6.2: Talk

Tuesday, March 20, 2018, 16:45–17:00, NW-Bau - HS5

Effects of different impedances on longitudinal beam dynamics — •Patrick Schreiber1, Tobias Boltz1, Miriam Brosi1, Patrik Schönfeldt2, and Anke-Susanne Müller1,21LAS, KIT, Karlsruhe, Germany — 2IBPT, KIT, Karlsruhe, Germany

The beam dynamics in a particle accelerator are influenced by its impedance. In particular with high charge densities, the production of coherent synchrotron radiation is governed by the longitudinal impedance. With Inovesa, an in-house developed simulation tool, it is possible to simulate the development of the longitudinal phase space density inside a storage ring by solving the Vlasov-Fokker-Planck equation. To get a better understanding and with the long-term goal to design impedances for an explicit purpose, we did systematic studies of the longitudinal dynamics for multiple impedances. In this contribution, we give an overview of the resulting changes and effects in the longitudinal phase space density for various impedances, ranging from basic shapes to real world approximations.

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