Konferenzvorträge

The electrochemical reduction of CO2 (eCO2RR) to organic base and platform chemicals holds potential to enable a circular carbon economy. Specifically, eCO2RR to formic acid promises to become cost-competitive with the energy-intensive conventional production process. [...]

Foundation models have progressed by scaling parameters and training data, driving rapidly increasing computational demands. This trend is especially pronounced in scientific imaging, where datasets can span terabytes to petabytes. [...]

Instance segmentation in crowded scenes requires both high object capacity and precise boundary modeling. Recent promptable foundation models offer strong generalization, but their automatic mask generation can be unreliable outside the training domain and their computational cost scales unfavorably with very large numbers of instances. [...]

High-Current Accelerator-driven Neutron Sources (HiCANS) represent a cost-efficient and scientifically attractive complement to fission reactors and spallation sources, combining brilliant neutron beams with low radiation background, a flexible pulse structure, and straightforward user access. The High Brilliance Neutron Source Phase I (HBS-I) is a proposed HiCANS user facili-ty to be realised at Forschungszentrum Jülich (FZJ) in collaboration with Helmholtz-Zentrum Hereon. [...]

Over the last years, High-Current Accelerator-driven Neutron Sources (HiCANS) have attracted increasing interest and represent a promising option for the next generation of neutron sources. The High Brilliance Neutron Source (HBS) project, developed by the Jülich Centre for Neutron Science at Forschungszentrum Jülich, aims to provide an efficient HiCANS for various scattering, analytical and imaging applications in science and industry.The shielding of the HBS-prototype target station has been developed and optimised with three key objectives: keeping the dose rates in the monitored areas of HBS well below the radiation protection limits, minimising background radiation from neutrons and gamma to ensure measurement sensitivity and reducing material activation to minimise decommissioning waste. [...]

In the framework of the development of the HBS HiCANS project in Jülich, a 1-dimensional cryogenic moderator based on liquid para-hydrogen has been designed, constructed, and tested. Para-hydrogen is hydrogen with antiparallel arrangement of the nuclear spins in the molecule. [...]