Mainz 2022 – scientific programme

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AKBP: Arbeitskreis Beschleunigerphysik

AKBP 6: Beam Dynamics 1

AKBP 6.1: Talk

Tuesday, March 29, 2022, 14:00–14:15, AKBP-H14

Realization of the Multi-Turn Energy Recovery Mode at S-DALINAC* — •Felix Schließmann, Michaela Arnold, Manuel Dutine, Marco Fischer, Ruben Grewe, Lars Jürgensen, Norbert Pietralla, Manuel Steinhorst, Lennart Stobbe, and Simon Weih — Institut für Kernphysik, Technische Universität Darmstadt, Darmstadt, Germany

The electron accelerator S-DALINAC at TU Darmstadt was successfully operated in the multi-turn energy recovery mode. Here, electrons were accelerated twice in the same LINAC and were decelerated afterwards in the very same LINAC just as often. During the deceleration in the LINAC, the electrons restore energy to the cavities, which can then be used to accelerate subsequent electrons. This principle enables a saving in acceleration power and an increase in the beam current, respectively. Therefore, this mode is a very promising basis for future accelerator facilities.
The multi-turn energy recovery mode is particularly challenging since several beams are superimposed in the same beamlines and the so-called phase slippage has to be taken into account in advance via beam dynamic simulations.
The content of this contribution covers the essential beam dynamics simulations, the setup of the multi-turn energy recovery mode and measured results.
*Work supported by DFG (GRK 2128), BMBF (05H21RDRB1), the State of Hesse within the Research Cluster ELEMENTS (Project ID 500/10.006) and the LOEWE Research Group Nuclear Photonics.