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AKBP: Arbeitskreis Beschleunigerphysik

AKBP 8: Poster AKBP

AKBP 8.2: Poster

Mittwoch, 11. März 2026, 09:30–11:00, P4

Status of the beam dynamics design of the bunch compressor for DALI — •Arthur Delan¹, Ulf Lehnert¹, Atoosa Meseck², Najmeh Mirian¹, Raffael Niemczyk¹, and Andreas Wagner¹ — ¹Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany — ²Helmholtz-Zentrum Berlin, Berlin, Germany

Dresden Advanced Light Infrastructure (DALI), a new 50 MeV superconducting linear accelerator at the Helmholtz-Zentrum Dresden-Rossendorf on the national shortlist of research infrastructures, is envisaged as the successor to ELBE, which has served users for over 20 years. Improving on the capabilities of ELBE, DALI contains a superradiant THz source designed to operate between 0.1 and 3 THz, driven by bunch charge increased up to 1 nC. Achieving the required form factor for superradiant emission demands sub-wavelength bunch lengths. The combination of high bunch charge and medium energy causes collective effects such as space charge forces and coherent synchrotron radiation emission to be significant contributions to the beam dynamics. Simulations of the compression and the status of the design for this bunch compressor are presented.

Keywords: superconducting accelerator; superradiant source; bunch compression; high charge; simulation