Speaker
Description
Precise beam manipulation and preservation of beam quality along the beamline are essential to produce high-brightness X-ray Free Electron Lasers (XFELs). These tasks can be effectively carried out through accurate beam diagnostics. In addition, a calibrated simulation model enables investigation of the optimal beamline conditions against collective effects such as coherent synchrotron radiation and longitudinal space charge, which cause nonlinear distortions in the beam phase space. In this paper, we present simulated demonstration of the model calibration. Particularly, we used the 6-dimensional phase space of the beam from a generative phase space reconstruction method as input beam parameters. We show how to perform the model calibration with multiple wire-scan measurements obtained under various beamline conditions, using gradient-based optimization method. In addition, we further present calibration results such as training and test wire-scan beam profiles. It is expected that this model calibration can be incorporated into the digital twin frameworks in the future for online, virtual diagnostics and robust optimizations.
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