Speaker
Description
BESSY III will be a fourth-generation synchrotron light source that aims to deliver diffraction-limited, extremely brilliant soft X-rays, with the goal of becoming a key instrument for discoveries in materials and energy research. During the current design phase, extensive simulation studies are being performed to evaluate and improve the robustness and reliability of the candidate storage ring lattice.
The robustness analysis allows a direct comparison of the expected lattice performance and sensitivity with that of other fourth-generation facilities under realistic error conditions. Building on this, the simulated commissioning process aims to recover optimal machine performance by mitigating the impact of imperfections originating from magnet misalignments and magnetic field errors. This work quantifies the achievable performance of the machine by simulating the full commissioning sequence, including beam-transmission optimisation, sextupole ramp-up, RF-cavity correction, beam-based alignment (BBA), orbit correction, and LOCO-based optics correction. After carrying out the lattice correction, the off-axis injection possibility and the Touschek lifetime are evaluated.
Although the preliminary results provide essential feedback for defining the commissioning strategy and enhancing the overall resilience of the BESSY III lattice design, they do not yet include the complete error set.
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