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AKBP: Arbeitskreis Beschleunigerphysik

AKBP 2: Novel Accelerator Concepts I

AKBP 2.6: Vortrag

Dienstag, 1. April 2025, 15:15–15:30, ZHG004

Recent developments of the cSTART project — •Markus Schwarz, Erik Bründermann, Robert Ruprecht, Axel Bernhard, Bastian Härer, Dima El Khechen, Anton Malygin, Michael Johannes Nasse, Gudrun Niehues, Alexander Papash, Jens Schäfer, Marcel Schuh, Nigel Smale, Pawel Wesolowski, Christina Widmann, Thiemo Schmelzer, Nathan Ray, David Squires, Alexander Saw, Joseph Natal, Anke-Susanne Müller, and Matthias Fuchs — KIT, Karlsruhe, Germany

The combination of a compact storage ring and a laser-plasma accelerator (LPA) can serve as the basis for future compact light sources. One challenge is the large momentum spread (about 2%) of the electron beams delivered by the LPA. To overcome this challenge, a very large acceptance compact storage ring (VLA-cSR) was designed as part of the compact STorage ring for Accelerator Research and Technology (cSTART) project, which will be realized at the Karlsruhe Institute of Technology (KIT, Germany). Initially, the Ferninfrarot Linac- Und Test-Experiment (FLUTE), a versatile source of ultra-short bunches, will serve as an injector for the VLA-cSR to benchmark and emulate LPA-like beams. In a second stage, a laser-plasma accelerator will be used as an injector. The small facility footprint, the large-momentum spread bunches with charges from 1 pC to 1 nC and lengths from few fs to few ps pose challenges for the lattice design, RF system and beam diagnostics. Recently, the Technical Design Report was developed in cooperation with Research Instruments and subcontractors. This contribution summarizes the latest state of the project.

Keywords: non-equilibrium dynamics; compact storage ring; laser-plasma-accelerator; ultra-short bunches