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000642950 1001_ $$0P:(DE-H253)PIP1095311$$aBrogren, Frida$$b0$$eCorresponding author
000642950 245__ $$aData-driven modeling of a laser-plasma accelerator-based x-ray source
000642950 260__ $$aCollege Park, MD$$bAmerican Physical Society$$c2025
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000642950 520__ $$aLaser-plasma accelerators (LPAs) enable compact, bright x-ray sources, but their practical application demands a significant reduction of beam instabilities that originate from drive laser fluctuations. Moreover, the complexity of the laser-plasma interaction makes it difficult to disentangle and quantify the impact of individual parameters on machine performance. To address this challenge, we develop a data-driven modeling strategy and apply it to an extensive dataset collected during a daylong operation of the LPAbased x-ray source LUX. By making use of an orthogonal-distance-based training objective, our approach reduces bias originating from measurement errors, which allows us to estimate the functional dependencies between laser, accelerated electrons, and generated undulator radiation. In addition, we demonstrate accurate prediction of the x-ray spectrum based on noninvasive measurements, showcasing the potential of our approach for building virtual diagnostics.
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000642950 693__ $$0EXP:(DE-H253)LUX-Beamline-20221201$$5EXP:(DE-H253)LUX-Beamline-20221201$$eLaser-Driven Undulator X-Ray Source$$x0
000642950 7001_ $$0P:(DE-H253)PIP1027758$$aJalas, S.$$b1
000642950 7001_ $$0P:(DE-H253)PIP1023364$$aHübner, L.$$b2
000642950 7001_ $$0P:(DE-H253)PIP1022096$$aMessner, Philipp$$b3
000642950 7001_ $$0P:(DE-H253)PIP1014001$$aSchnepp, Matthias$$b4
000642950 7001_ $$0P:(DE-H253)PIP1018499$$aTrunk, Maximilian$$b5
000642950 7001_ $$0P:(DE-H253)PIP1017053$$aWerle, Christian$$b6
000642950 7001_ $$0P:(DE-H253)PIP1016482$$aWinkler, Paul Viktor$$b7
000642950 7001_ $$0P:(DE-HGF)0$$aMarklund, M.$$b8
000642950 7001_ $$0P:(DE-HGF)0$$aGonoskov, A.$$b9
000642950 7001_ $$0P:(DE-H253)PIP1087150$$aLeemans, Wim$$b10
000642950 7001_ $$0P:(DE-H253)PIP1014692$$aMaier, Andreas$$b11
000642950 7001_ $$0P:(DE-H253)PIP1021382$$aKirchen, Manuel$$b12$$eLast author
000642950 773__ $$0PERI:(DE-600)2844143-6$$a10.1103/dnnw-lfn5$$gVol. 28, no. 10, p. 101302$$n10$$p101302$$tPhysical review accelerators and beams$$v28$$x2469-9888$$y2025
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