Mode recognition by shape morphing for Maxwell's eigenvalue problem in cavities

A Ziegler, N Georg, W Ackermann… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
In electrical engineering, for example, during the design of superconducting radio frequency
cavities, eigenmodes must be identified based on their field patterns. This allows to …

[HTML][HTML] A computer-based simulation methodology of the predetermined maintenance scheme of an irradiation facility

MH Ismail, M Chiachío, J Chiachío, F Arranz… - Computers & Industrial …, 2024 - Elsevier
This study presents a computational framework for maintenance modelling aimed at
addressing the complexities of the test cell (TC) within the IFMIF DONES, a complex …

[HTML][HTML] Shape uncertainty quantification of Maxwell eigenvalues and-modes with application to TESLA cavities

J Dölz, D Ebert, S Schöps, A Ziegler - Computer Methods in Applied …, 2024 - Elsevier
We consider Maxwell eigenvalue problems on uncertain shapes with perfectly conducting
TESLA cavities being the driving example. Due to the shape uncertainty the resulting …

[HTML][HTML] Multi-Objective Shape Optimization of TESLA-like Cavities: Addressing Stochastic Maxwell's Eigenproblem Constraints

P Putek, SG Zadeh, U van Rienen - Journal of Computational Physics, 2024 - Elsevier
In this paper, we present a robust formulation to address nonlinear equality-constrained and
inequality-constrained multi-objective optimization problems for multi-cell accelerating …

Conformally mapped polynomial chaos expansions for Maxwell's source problem with random input data

N Georg, U Römer - International Journal of Numerical …, 2020 - Wiley Online Library
Abstract Generalized Polynomial Chaos (gPC) expansions are well established for forward
uncertainty propagation in many application areas. Although the associated computational …

Multiobjective design optimization of a quadrupole resonator under uncertainties

P Putek, SG Zadeh, M Wenskat, U van Rienen - Physical Review Accelerators …, 2022 - APS
For a precise determination of the rf properties of superconducting materials, a calorimetric
measurement is carried out with the aid of a so-called quadrupole resonator (QPR). This …

Surrogate modeling for injection molding processes using deep learning

A Uglov, S Nikolaev, S Belov, D Padalitsa… - Structural and …, 2022 - Springer
Injection molding is one of the most popular manufacturing methods for making complex
plastic objects. Faster numerical simulation of this manufacturing process would allow faster …

Surrogate modeling and uncertainty quantification for radio frequency and optical applications

N Georg - 2021 - tuprints.ulb.tu-darmstadt.de
This thesis addresses surrogate modeling and forward uncertainty propagation for
parametric/stochastic versions of Maxwell's source and eigenproblem. Surrogate modeling …

A computer-based simulation methodology of the predetermined maintenance scheme of an irradiation facility

M Hisham Ismail, M Chiachío Ruano… - 2024 - digibug.ugr.es
This study presents a computational framework for maintenance modelling aimed at
addressing the complexities of the test cell (TC) within the IFMIF DONES, a complex …

Results of High Order Modes Spectra Measurements in 1.3 GHz Cavities for LCLS-II

A Lunin, T Khabiboulline, A Sukhanov… - arXiv preprint arXiv …, 2024 - arxiv.org
Fermilab recently completed production and testing of 1.3 GHz cryomodules for the LCLS-II
project. Each cryomodule consists of eight TESLA-shaped superconducting elliptical cavities …