Federated learning (FL) has been recently introduced to enable training deep learning (DL) models or AI agents without sharing the data. In other words, AI agents at local hubs, e.g. hospitals, are trained on their own data and only share the trained parameters with a centralized AI model or other …

The Helmholtz Imaging Service Unit ‘Applied Computer Vision Lab’ supports Helmholtz researchers in the application of AI algorithms to their custom image analysis problems. Our services include designing tailored AI solutions, consulting in training data selection and (semi-automated) annotation, training of annotation workers, standardized evaluation of algorithm performance and the …

Technological progress allows data collection at an ever-increasing rate. This is true for many scientific fields including neuroscience where structural and functional brain-imaging data is now available for tens of thousands of subjects. This raises the question of how these large amounts of data can be efficiently and effectively transformed …

The BioGeoOmics Lab integrates state-of-the art instrumental and methodological approaches to study dynamic interactions of molecules in the environment. These molecular interactions include natural processes (e.g. metabolism, organic matter diagenesis) as well as anthropogenic interferences (interaction of biological systems with chemicals).

At the core of the the analytical toolkit of …

The Center for Free-Electron Laser Science as a joint enterprise of DESY, the Max Planck Society (MPG), and the University of Hamburg is designed to advance science with next-generation light sources and lasers.

The three partners join forces to explore structural changes of atoms, molecules, condensed, biological, or warm dense …

The Centre for X-ray and Nano Science (CXNS), is a cooperation of DESY with the Helmholtz-Zentrum Hereon (Geesthacht) and the Christians-Albrechts-Universität zu Kiel (CAU). Moreover, two further partners joined the CXNS in 2020: the Technische Universität Hamburg (TUHH) as part of the Center for Integrated Multiscale Material Systems (CIMMS) and …

To understand Climate System dynamics from a polar perspective, determine limits of predictability and provide cutting-edge climate change projections through excellent research, and by developing and providing world-leading climate modelling capacity, for the benefit of society.

We use coherent X-rays to study structure and dynamics of complex fluids and glasses and ultrashort processes in advanced materials. We perform experiments at synchrotron and free-electron laser sources including coherent small-angle X-ray scattering and various pump-probe methods. We designed and constructed an X-ray split and delay unit for ultrafast …

The activities of the CFD department focus on:

• The CFD-model development and validation for multiphase flows
• for medium and large scale industrial applications
• based on the multi-fluid approach.
• Dedicated experiments as well as DNS / LES aiming at the development and validation of closure models.

Computational Imaging Group and Helmholtz Imaging at DESY, lead by Martin Burger.

Our research is dedicated to in-silico radiotherapy simulation of cancer patients undergoing curative irradiation treatment. The challenge for technically precise radiation therapy lies in adapting dose delivery to deformations in the patient’s anatomy induced by motion and physiological changes. Our vision is to create a virtual patient model or a …

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In the environment physical, chemical and biological processes influence the migration behavior of long-lived radionuclides (RN). In the biosphere mainly prokaryotic and eukaryotic microorganisms are involved in element cycles and the mobilization or immobilization of many radioactive and non-radioactive elements. Furthermore, their physiology and biochemistry are optimized to allow them …

The Department of Chemistry of the f-elements studies the chemistry of actinides and their lanthanide homologs in solid state as well as in solution. Modern analytical tools combined with quantum chemical computations, provide atomic scale information that can be used to characterize the physico-chemical properties of the actinides in molecules.

The Department of Exploration aims at developing new technologies and workflows for the fast, non-invasive and economic exploration of mineral resources. The following research groups represent the thematic focus of the department:
- Remote Sensing
- Outcrop and Subsurface Modelling
- Near-field Sensing
- Machine Learning

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Research:

• Synchrotron-based research on the short-range structure, oxidation state and bonding of actinides, using the following methods:
• EXAFS: Extended X-ray absorption fine-structure spectroscopy to determine the short-range structure of a target element, i.e. the elemental identity, number and radial distance of atoms in its coordination shell and beyond (typically to …

The main research focus of the Department of Neuroradiopharmaceuticals is the development and evaluation of radiolabelled ligands (radiotracers) in order to investigate brain functions in living organism. The application of the radiotracers provides images of transport, metabolic and neurotransmission processes on the molecular level. The method used in humans to …

The department's research is addressing multiple aspects of the image data acquisition and processing chain, including, among others, image reconstruction, motion correction, modeling of transport and metabolic processes, quantification of tumor shape irregularities, and statistical analysis. More detailed information regarding currently pursued projects can be found in the links below.