Speaker
Description
Petra IV, the upcoming fourth-generation synchrotron light source at DESY, ambitions to become the world’s brightest X-ray source. Installed in the PETRA tunnel, it consists of a 2.3-km circumference ring storing 1,920 bunches at 6 GeV, for a total charge of 1,500 nC. In 2024, we published a Conceptual Design Report [A. Martinez de la Ossa et al., DESY, 2024 https://doi.org/10.3204/PUBDB-2024-06078] documenting a plasma-based alternative to the baseline injection system (450 MeV linac + booster). The tight requirements of a 6-GeV laser-plasma accelerator (LPA) delivering 4 nC/s within 1% energy acceptance were met thanks to an energy compression beamline to control the energy spread and jitter. In this talk, we present the suite of simulations tools used to perform this study as well as methods for start-to-end pipelines combining electromagnetic particle-in-cell (PIC), quasistatic PIC, beam dynamics and Bayesian optimization. Recent progress to simulate the formation of the hydrodynamic optical-field-ionized (HOFI) channel to guide the high-energy LPA will be discussed, as well as considerations on transverse jitters and tolerances. The open-source toolkit for start-to-end simulations from plasma source formation to application can be used for a wide range of problems pertaining to beam-driven and laser-driven plasma acceleration.
| Working group | WG6 |
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