LEAPS research infrastructures to tackle societal crises
More than 180 scientists, research facilities directors, policymakers and industry representatives travelled to Paul Scherrer Institute from across Europe to attend the LEAPS Plenary Meeting. © Markus Fischer/PSI
Against a backdrop of the energy crisis, scientists and policymakers convened at Paul Scherrer Institute PSI in Switzerland and set out a vision for European accelerator based photon sources to address current and future societal challenges together.
“LEAPS facilities find themselves in a unique position of simultaneously needing to adapt as heavy energy users whilst being an integral part of the solution.” So said Leonid Rivkin from the Paul Scherrer Institute PSI, Switzerland, Chair of the League of European Accelerator-based Photon Sources (LEAPS). Speaking at the 5th LEAPS plenary meeting, Rivkin commented that planned facility upgrades to leading European research infrastructures will help favourably shift the balance, providing more X-rays for more science with less energy consumption.
The current energy crisis was an important theme during the 5th LEAPS plenary meeting, held at the Paul Scherrer Institute from the 26th – 28th October 2022. The meeting welcomed more than 180 scientists, policy makers and industry representatives from across Europe. This included directors of the 19 member European accelerator-based photon facilities – i.e. synchrotron light sources and free electron lasers (FELs) - as well as high-level representatives of the European Commission.
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- BESSY II: Phosphorous chains – a 1D material with 1D electronic propertiesFor the first time, a team at BESSY II has succeeded in demonstrating the one-dimensional electronic properties of a material through a highly refined experimental process. The samples consisted of short chains of phosphorus atoms that self-organise at specific angles on a silver substrate. Through sophisticated analysis, the team was able to disentangle the contributions of these differently aligned chains. This revealed that the electronic properties of each chain are indeed one-dimensional. Calculations predict an exciting phase transition to be expected as soon as these chains are more closely packed. While material consisting of individual chains with longer distances is semiconducting, a very dense chain structure would be metallic.
- Did marine life in the palaeocene use a compass?Some ancient marine organisms produced mysterious magnetic particles of unusually large size, which can now be found as fossils in marine sediments. An international team has succeeded in mapping the magnetic domains on one of such ‘giant magnetofossils’ using a sophisticated method at the Diamond X-ray source. Their analysis shows that these particles could have allowed these organisms to sense tiny variations in both the direction and intensity of the Earth’s magnetic field, enabling them to geolocate themselves and navigate across the ocean. The method offers a powerful tool for magnetically testing whether putative biological iron oxide particles in Mars samples have a biogenic origin.
- What vibrating molecules might reveal about cell biologyInfrared vibrational spectroscopy at BESSY II can be used to create high-resolution maps of molecules inside live cells and cell organelles in native aqueous environment, according to a new study by a team from HZB and Humboldt University in Berlin. Nano-IR spectroscopy with s-SNOM at the IRIS beamline is now suitable for examining tiny biological samples in liquid medium in the nanometre range and generating infrared images of molecular vibrations with nanometre resolution. It is even possible to obtain 3D information. To test the method, the team grew fibroblasts on a highly transparent SiC membrane and examined them in vivo. This method will provide new insights into cell biology.