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AKBP: Arbeitskreis Beschleunigerphysik

AKBP 8: Diagnostics

AKBP 8.5: Vortrag

Donnerstag, 3. April 2025, 12:00–12:15, ZHG004

Stabilization of Transverse Beam Parameters for Future Electron-Induced Fission Experiments at the S-DALINAC* — •Dominic Schneider, Michaela Arnold, Jonny Birkhan, Uwe Bonnes, Adrian Brauch, Manuel Dutine, Ruben Grewe, Bastian Hessbacher, Lars Jürgensen, Igor Jurosevic, Norbert Pietralla, Tim Ramaker, Maximilian Resch, Felix Schliessmann, and Gerhart Steinhilber — Institut für Kernphysik, TU Darmstadt

Research on electron-induced fission reactions of transuranium actinides is in preparation at the S-DALINAC. The intended small target sizes require a limitation of transverse displacement of the electron beam due to drifts and distortions to below 200 µm. Three systems have been developed, implemented and interconnected to monitor and improve the transverse beam stability: (i) A beam position monitoring system based on high-speed cameras provides transverse beam parameters with micrometer resolution at a kilohertz rate. (ii) A newly designed compensator device mitigates longitudinal and transversal perturbations from the mains frequency on the electron beam. (iii) Lastly, an active beam-stabilization system ensures high beam stability at the intended interaction point of the electron beam and the fission target. A brief overview of the design and implementation of these systems as well as performance measurements will be presented in this contribution. *Work supported by State of Hesse within the Research Cluster Project ELEMENTS (Project ID 500/10.006) and DFG (GRK 2128 AccelencE).

Keywords: Stabilization; Feedback; Control; transverse parameters; stability