Tim Wagner
A5060490297- Atomic and Subatomic Physics Research
- Particle Accelerators and Free-Electron Lasers
- Photonic and Optical Devices
- Mechanical and Optical Resonators
- Radiation Detection and Scintillator Technologies
- Radiation Effects in Electronics
- Magnetic confinement fusion research
- Ion-surface interactions and analysis
- Dark Matter and Cosmic Phenomena
- Semiconductor Lasers and Optical Devices
- Multiple Myeloma Research and Treatments
- Heat Transfer and Boiling Studies
- Topological Materials and Phenomena
- Ionosphere and magnetosphere dynamics
- Classical Philosophy and Thought
- Molecular Junctions and Nanostructures
- Radiation Therapy and Dosimetry
- Photonic Crystals and Applications
- Olfactory and Sensory Function Studies
- GNSS positioning and interference
- Computational Physics and Python Applications
- Quantum and electron transport phenomena
- Particle Detector Development and Performance
- Magnetic properties of thin films
- Particle accelerators and beam dynamics
GSI Helmholtz Centre for Heavy Ion Research
2022-2025
University of Hohenheim
2022-2024
Forschungszentrum Jülich
2018-2024
RWTH Aachen University
2020-2024
Heidelberg University
2023-2024
DKFZ-ZMBH Alliance
2024
Harvard University
2023
University Hospital Heidelberg
2023
Brigham and Women's Hospital
2023
University Medical Center Hamburg-Eppendorf
2022
Based on the notion that local dark-matter field of axions or axionlike particles (ALPs) in our Galaxy induces oscillating couplings to spins nucleons and nuclei (via electric dipole moment latter and/or paramagnetic axion-wind effect), we establish feasibility a new method search for ALPs storage rings. previous work allows us maintain in-plane polarization stored deuteron beam few hundred seconds, perform first proof-of-principle experiment at Cooler Synchrotron (COSY) scan momenta near...
Cheese is one of the most common dairy products and characterized by its complex aroma. However, in times climate change resource scarcity, possibility to mimic characteristic cheese-like aroma from plant-based sources demand offer alternatives cheese. Accordingly, production a natural via fermentation four proteins coconut oil with basidiomycetes has been addressed. Mixtures soy sunflower protein (15 g/L) have shown formation after 72 56 h Cyclocybe aegerita Trametes versicolor,...
This paper presents the successful application of a phase-lock feedback system to maintain resonance condition radio frequency (rf) spin rotator (specifically, an rf Wien filter) with respect 120 kHz precession in Cooler Synchrotron (COSY) storage ring. Real-time monitoring and filter signal allows relative phase between two be stabilized at arbitrary setpoint. The compensates for deviations by adjusting and/or as needed. With this method, variation demand standard deviation...
In the context of increasing global health risks, including obesity, diabetes, and cardiovascular diseases, odor-induced taste enhancement (OITE) has emerged as an important supplement to other sugar reduction strategies, offering a promising way reduce intake. OITE can be used in conjunction with methods, unlike some artificial sweeteners, it does not cause unpleasant aftertastes bitterness metallic flavors. However, compared approaches, efficiency appears relatively modest. This review...
The proposed method exploits charged particles confined as a storage ring beam (proton, deuteron, possibly $^3$He) to search for an intrinsic electric dipole moment (EDM) aligned along the particle spin axis. Statistical sensitivities could approach 10$^{-29}$ e$\cdot$cm. challenge will be reduce systematic errors similar levels. adjusted preserve polarisation, initially parallel velocity, times in excess of 15 minutes. Large radial fields, acting through EDM, rotate polarisation from...
Cancer stem cells (CSCs) are a major cause of tumor therapy failure. This is mainly attributed to increased DNA repair capacity and immune escape. Recent studies have shown that functional via homologous recombination (HR) prevents radiation-induced accumulation in the cytoplasm, thereby inhibiting intracellular response. However, it unclear whether CSCs can suppress cytoplasmic dsDNA formation. Here, we show radioresistance ALDH1-positive breast cancer (BCSCs) S phase mediated by both...
Very-high-energy (VHE), heavy ions are of particular interest for single event effects testing due to their combination high linear energy transfer (LET) and penetration within electronics components. The dosimetry such beams poses an important challenge facilities aiming provide VHE radiation testing. In this paper, ion beam using a silicon solid state detector is presented uranium in the 100 – 1000 MeV per nucleon kinetic range. study involves experimental measurements carried out at SIS18...
Wasp venom allergy is the most common insect in Europe. It manifested by large local reaction or anaphylactic shock occurring after a wasp sting. The can be treated specific immunotherapy with whole extracts. difficult and costly to obtain subject composition variation, therefore it advantageous substitute cocktail of recombinant allergens. One major allergens phospholipase A1, which so far has been expressed Escherichia coli cells. Our aim was produce protein secreted form yeast Pichia...
The Jülich Electric Dipole moment Investigation (JEDI) collaboration aims at a direct measurement of the Moment (EDM) protons and deuterons using storage ring. is based on polarization measurement. In order to reach highest accuracy, one has know exact trajectory through magnets, especially quadrupoles, avoid influence magnetic fields vector. this paper, development beam-based alignment technique described that was developed implemented COoler SYnchrotron (COSY) Forschungszentrum Jülich....
We investigated coherent betatron oscillations of a deuteron beam in the storage ring cooler synchrotron and ring, excited by detuned rf Wien filter (WF). The were detected conventional position monitors. With currently available apparatus, we show that oscillation amplitudes down to $1\text{ }\text{ }\ensuremath{\mu}\mathrm{m}$ can be detected. interpretation response stored WF is based on simulations evolution lattice realistic time-dependent 3D field maps WF. Future measurements electric...
We report on cross-coupled composite-cavity microresonators consisting of a vertical cavity and second-order distributed feedback structure which employ the same organic active medium support surface-normal in-plane emission at time. The optical coupling is due to first-order light diffraction Bragg grating and, in degenerate case, can be as efficient observed more classical cascade coupled cavities. When system non-degenerate, efficiency suppressed because sub-coherence-length dimensions...
Fragmented heavy-ion beams obtained from the interaction of highly energetic ions with thick targets relative to ion ranges are proposed mimic high-penetration linear energy transfer (LET) spectrum present in space and for electronics testing. Our experimental data characterizing fragmented show an excellent level agreement Monte Carlo simulations, serving as initial proof-of-concept single-event effect (SEE) testing approach.
A calorimetric polarimeter based on inorganic LYSO scintillators is described. It has been designed for use in a storage ring to search electric dipole moments (EDM) of charged particles such as the proton and deuteron. Its development first was Cooler Synchrotron (COSY) at Forschungszentrum Jülich with 0.97 GeV/c polarized deuterons, particle energy suitable an EDM search. The requires high efficiency, large analyzing power, stable operating characteristics. With typical beam momenta about...
This project exploits charged particles confined as a storage ring beam (proton, deuteron, possibly $^3$He) to search for an intrinsic electric dipole moment (EDM, $\vec d$) aligned along the particle spin axis. Statistical sensitivities can approach $10^{-29}$~e$\cdot$cm. The challenge will be reduce systematic errors similar levels. adjusted preserve polarization, initially parallel velocity, times in excess of 15 minutes. Large radial fields, acting through EDM, rotate polarization ($\vec...
Abstract Fuel cells for mobile applications obtain their oxygen from the ambient air in road traffic. This has contaminations of various impurities that can have negative effects on lifetime fuel cell systems vehicles. The identified most relevant contaminants are toluene, nitrogen dioxide, ammonia, and sulfur dioxide. A modified test bench enables different dosages above‐mentioned pollutant gas concentrations cathode side. We examined influences both static cycles quasi‐steady states...
Atomic monolayers on semiconductor surfaces represent a new class of functional quantum materials at the ultimate two-dimensional limit, ranging from superconductors [1, 2] to Mott insulators [3, 4] and ferroelectrics [5] spin Hall (QSHI) [6, 7]. A case in point is recently discovered QSHI indenene [7, 8], triangular monolayer indium epitaxially grown SiC(0001), exhibiting $\sim$120meV gap substrate-matched monodomain growth technologically relevant $\mu$m scale [9]. Its suitability for...