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19 April 2024 |
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Article overview
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Uncertainty Modeling and Analysis of the European XFEL Cavities Manufacturing Process | | Jacopo Corno
; Niklas Georg
; Shahnam Gorgi Zadeh
; Johann Heller
; Vladimir Gubarev
; Toon Roggen
; Ulrich Römer
; Christian Schmidt
; Sebastian Schöps
; Alexey Sulimov
; Ursula van Rienen
; | | Date: |
21 Jun 2019 | | Abstract: | This paper reports on comprehensive efforts on uncertainty quantification and
global sensitivity analysis for accelerator cavity design. As a case study
object the TESLA shaped superconducting cavities, as produced for the European
X-ray Free Electron Laser (EXFEL), are selected. The choice for these cavities
is explained by the available measurement data that can be leveraged to
substantiate the simulation model. Each step of the manufacturing chain is
documented together with the involved uncertainties. Several of these steps are
mimicked on the simulation side, e.g. by introducing a random eigenvalue
problem. The uncertainties are then quantified numerically and in particular
the sensitivities give valuable insight into the systems behavior. We also
compare these findings to purely statistical studies carried out for the
manufactured cavities. More advanced, adaptive, surrogate modeling techniques
are adopted, which are crucial to incorporate a large number of uncertain
parameters. The main contribution is the detailed comparison and fusion of
measurement results for the EXFEL cavities on the one hand and simulation based
uncertainty studies on the other hand. After introducing the quantities of
physical interest for accelerator cavities and the Maxwell eigenvalue problem,
the details on the manufacturing of the EXFEL cavities and measurements are
reported. This is followed by uncertainty modeling with quantification studies. | | Source: | arXiv, 1906.9151 | | Services: | Forum | Review | PDF | Favorites | |
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