Wuppertal 2015 – wissenschaftliches Programm

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AKBP: Arbeitskreis Beschleunigerphysik

AKBP 9: Beam Dynamics / Simulation I

AKBP 9.4: Vortrag

Dienstag, 10. März 2015, 17:30–17:45, BZ.08.04 (HS 2)

Beam dynamics simulations for the S-DALINAC* — •Jonas Pforr, Michaela Arnold, Florian Hug, Lars Jürgensen, Thorsten Kürzeder, and Norbert Pietralla — Institut für Kernphysik, TU Darmstadt, Darmstadt, Germany

The superconducting electron accelerator S-DALINAC is a twofold recirculating linear accelerator located at TU Darmstadt. However, the design energy of 130 MeV could not be reached, yet, due to limitations in the cooling power.

It is planned to build a third recirculation in order to increase the possible beam energy and stability. In this process, simulations of the beam dynamics had to be done.

In general, in recirculating LINACs the beam current is limited by beam-breakup (BBU). BBU occurs when higher order modes (HOMs) in the cavities cause a transverse displacement of the beam, which can after the recirculation amplify the higher order modes. This can lead to a growth of the HOMs and the beam displacement until the beam is lost. In order to test different strategies to overcome BBU limits, we will integrate skew quadrupoles and sextupoles in the lattice.

In this talk we will present the beam dynamics simulations with these new magnets.

*Work supported by BMBF through 05K13RDA