Journal Article

PUBDB-2020-04056

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Uncertainty Modeling and Analysis of the European X-Ray Free Electron Laser Cavities Manufacturing Process

Corno, J. ; Georg, N. (Corresponding author) ; Gorgi Zadeh, S. ; Heller, J. ; Gubarev, V.DESY* ; Roggen, T. ; Römer, U. ; Schmidt, C. ; Schöps, S. ; Schultz, J. ; Sulimov, A.DESY* ; van Rienen, U.

2020
North-Holland Publ. Co. Amsterdam

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Please use a persistent id in citations: doi:10.1016/j.nima.2020.164135  doi:10.3204/PUBDB-2020-04056

Report No.: 164135; arXiv:1906.09151

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 system 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.

Keyword(s): Superconducting cavities ; Manufacturing tolerances ; Data analysis ; Uncertainty quantification ; Finite element analysis

Note: DFG-Geschäftszeichen: SCHM 3127/2-1

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Contributing Institute(s):

1. Supraleitende Beschleuniger Technologie (MSL)

Research Program(s):

1. 631 - Accelerator R & D (POF3-631) (POF3-631)
2. 6G13 - XFEL (POF3-622) (POF3-622)
3. DFG project G:(GEPRIS)390881007 - EXC 2163: Sustainable and Energy-Efficient Aviation – SE²A (390881007) (390881007)

Experiment(s):

1. Facility (machine) XFEL

Appears in the scientific report 2020

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Engineering, Computing and Technology ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF < 5 ; JCR ; NCBI Molecular Biology Database ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Web of Science Core Collection

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