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@ARTICLE{Brogren:642950,
author = {Brogren, Frida and Jalas, S. and Hübner, L. and Messner,
Philipp and Schnepp, Matthias and Trunk, Maximilian and
Werle, Christian and Winkler, Paul Viktor and Marklund, M.
and Gonoskov, A. and Leemans, Wim and Maier, Andreas and
Kirchen, Manuel},
title = {{D}ata-driven modeling of a laser-plasma accelerator-based
x-ray source},
journal = {Physical review accelerators and beams},
volume = {28},
number = {10},
issn = {2469-9888},
address = {College Park, MD},
publisher = {American Physical Society},
reportid = {PUBDB-2025-05740},
pages = {101302},
year = {2025},
abstract = {Laser-plasma accelerators (LPAs) enable compact, bright
x-ray sources, but their practical application demands a
significant reduction of beam instabilities that originate
from drive laser fluctuations. Moreover, the complexity of
the laser-plasma interaction makes it difficult to
disentangle and quantify the impact of individual parameters
on machine performance. To address this challenge, we
develop a data-driven modeling strategy and apply it to an
extensive dataset collected during a daylong operation of
the LPAbased x-ray source LUX. By making use of an
orthogonal-distance-based training objective, our approach
reduces bias originating from measurement errors, which
allows us to estimate the functional dependencies between
laser, accelerated electrons, and generated undulator
radiation. In addition, we demonstrate accurate prediction
of the x-ray spectrum based on noninvasive measurements,
showcasing the potential of our approach for building
virtual diagnostics.},
cin = {MPL},
ddc = {530},
cid = {I:(DE-H253)MPL-20120731},
pnm = {621 - Accelerator Research and Development (POF4-621)},
pid = {G:(DE-HGF)POF4-621},
experiment = {EXP:(DE-H253)LUX-Beamline-20221201},
typ = {PUB:(DE-HGF)16},
doi = {10.1103/dnnw-lfn5},
url = {https://bib-pubdb1.desy.de/record/642950},
}