Conveners
Kurzvorstellung der Projektvorschläge der Universitäten
- Florian Hug (Johannes Gutenberg-Universität Mainz)
Description
Moderation: NN
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Allen Caldwell (Max-Planck-Institut fur Physik (DE))13/05/2026, 11:03
Topics in proton-driven PWFA will be addressed. These include the commissioning and operation of a novel plasma source for the AWAKE experiment at CERN, simulation studies of an FFA-based proton-driver for bringing electron beams to the many 100 GeV and TeV region, and the development of an energy-correction scheme for accelerated bunches exiting the plasma.
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Jonas Christ (TU Darmstadt, Institute for Accelerator Science and Electromagnetic Fields (TEMF))13/05/2026, 11:06
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Kurt Aulenbacher13/05/2026, 11:09
Electric dipole moments of subatomic particles may be observed by detecting “irregular” spin-motion. Such measurements are always limited by the control of systematic effects. Since suitable storage rings for, e.g. protons, are presently not available, we suggest to use existing hardware at HIM Mainz to study such effects with spin-polarized electrons.
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Margarita Bulgacheva (Technical University Darmstadt)13/05/2026, 11:12
We develop a simulation framework for nanostructured photocathodes that combines electromagnetic modeling, spatially resolved photoemission with Schottky correction, and particle-in-cell beam dynamics.
Nanostructured metallic photocathodes offer enhanced quantum efficiency through surface-plasmon excitation that leads to increased absorptance. For plasmonic copper cathodes at UV, the...
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Michael Switka (Universität Bonn, ELSA)13/05/2026, 11:15
The University of Bonn operates a 3.2 GeV synchrotron capable of accelerating spin polarized electrons from a dedicated GaAs-source to external experimental stations. The facility's key capabilities include the mitigation of depolarizing resonances (tune jumps, harmonic correction) and polarimetry (stored and extracted beam). It offers unique opportunities for testing applications for future...
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David Saez de Jauregui (KIT)13/05/2026, 11:18
Projektvorschlag des IBPT (KIT) zur nachhaltigen Fortführung der FuE Magnetstrukturen aus Hochtemperatursupraleitern.
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Michael Mayerhofer (Universität der Bundeswehr München)13/05/2026, 11:21
Additive Manufacturing (AM) for Efficient Particle Accelerators
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Prof. Jörg Schreiber (University of Munich (LMU))13/05/2026, 11:24
As part of the ErUM-FSP APPA, this project will advance Ion-Bunch Energy Acoustic Tracing (I-BEAT) from qualitative single-shot monitoring towards quantitative ion-energy diagnostics in structured solid detector media. Building on previous work with water-based detectors and solid moderators, we have recently demonstrated that layered solid volumes, initially composed of aluminium and PEEK,...
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Benedikt Krause (TU Darmstadt)13/05/2026, 11:27
Terahertz (THz) frequencies (100 GHz – 10 THz, 414 µeV – 41 meV) are often part of synchrotron radiation, yet receive little attention for monitoring and control purposes. Previously, we investigated the capabilities of THz field effect transistors for beam positioning purposes of FELs and also spectrally characterized an FEL with a THz photonic spectrum analyzer at multiple THz. Here, we want...
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Stephan Klaproth (Technische Hochschule Mittelhessen)13/05/2026, 11:30
Ionization profile monitors in accelerator beamlines rely on delicate wire grids with high optical transparency, but conventional wire fabrics are prone to shortcuts or sparkovers to nearby high-voltage components due to loose wires and can therefore cause malfunction. In the presented concept, additive manufacturing is explored as a route to produce more robust grid structures for IPMs, with...
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Stephan Klaproth (Technische Hochschule Mittelhessen)13/05/2026, 11:33
A pulsed electron lens is being developed at GSI for space charge compensation, but direct time-resolved diagnostics of the electron beam remain challenging because of the high beam power. Additionally, the electron beam will be modulated. The presented concept makes use of an additively manufactured fast Faraday cup for the temporal characterization of the electron beam. Due to geometric...
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Florian Hug (Johannes Gutenberg-Universität Mainz)13/05/2026, 11:36
Reliable SRF-ERLs with high energies (multi-turn) and currents needed for future machines/colliders. JGU and TUDa will be running the only European ERL projects within the upcoming funding period giving a chance to run studies on efficient ERL operation.
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Years of operating MAMI and S-DALINAC (conventional mode) show tremendous beam stability and energy spread using off crest acceleration and... -
Florian Hug (Johannes Gutenberg-Universität Mainz)13/05/2026, 11:39
One limiting factor of ERL efficiency is the injection energy. But lower injection energy increases phase slippage effects. We are going to measure beam properties (e.g. bunch length, emittance) of injection beams at different energies (4, 6, 8 MeV) before main acceleration and investigate limits of transversal and longitudinal acceptance for twice recirculating ERL operation of S-DALINAC.
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Florian Hug (Johannes Gutenberg-Universität Mainz)13/05/2026, 11:42
For low beam loading machines (like ERLs having virtually no beamloading) the required RF power is dominated by microphonics. Residual microphonics require over-coupled FPC and are cost extensive. Using faster tuners would allow to couple more critically and increase the efficiency of the RF operation.
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Márton Major (Technical University of Darmstadt)13/05/2026, 11:451
Based on previous results (coating of small substrates and HOM antennae) low temperature co-sputtering of Nb3Sn of Cu QPR cups will be optimised and compared to other coating methods. Part of the planned Phoenix collaboration, project partners: HZB, UHH, TU Chemnitz, Uni Wuppertal.
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gudrid moortgat-pick13/05/2026, 11:48
Generation of polarized electron sources via LPA
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Experimental test of spin behaviour of polarized sources in plasma environment, e.g. transfer through plasma lens
Depolarization analyses and Spin management
Further code development for spin tracking in HEP including plasmas -
Sosoho-Abasi Udongwo (Brandenburgische Technische Universität Cottbus-Senftenberg)13/05/2026, 11:51
The electromagnetic simulation of large accelerator structures, such as RF cavity chains, is computationally demanding due to the high number of degrees of freedom required by the finite element methods (FEM). This work presents a framework that combines Model-Order Reduction (MOR) with state-space concatenation (SSC) within the NGSolve finite element environment. Individual cavity...
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Prof. Simon Adrian13/05/2026, 11:54
We propose a multiscale modeling and optimization framework for Fast Reactive Tuners (FRTs) for 1.3,GHz TESLA cavities at MESA, combining fine thermal-mechanical simulations with reduced-order lumped circuit models. The project will investigate stochastic PDE/ODE formulations and polynomial chaos expansions to account for manufacturing imperfections, while employing coarse/fine model space...
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Simon Adrian13/05/2026, 11:57
We aim to develop a multiscale boundary-element framework for the numerical modeling of superconducting RF cavities with micrometer-scale surface roughness, motivated in particular by Nb3Sn-coated cavity technologies. Building on our current 2D multiscale PEC formulation, we plan to incorporate superconducting surface boundary conditions and collaborate on modeling magnetic flux trapping and...
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