Die jüngste Grossforschungsanlage des PSI erzeugt sehr kurze Pulse von Röntgenlicht mit Lasereigenschaften. Damit können Forschende extrem schnelle Vorgänge wie die Entstehung neuer Moleküle bei chemischen Reaktionen verfolgen, die detaillierte Struktur lebenswichtiger Proteine bestimmen oder den genauen Aufbau von Materialien klären. Die Erkenntnisse erweitern unser Verständnis der Natur und führen zu praktischen Anwendungen wie etwa neuen Medikamenten, effizienteren Prozessen in der chemischen Industrie oder neuen Materialien in der Elektronik.
Mehr dazu unter Überblick SwissFEL
Öffentliche Führung: Radiopharmazie
Tauchen Sie ein in die faszinierende Welt der Radiopharmazie am Paul Scherrer Institut. Erfahren Sie, wie radioaktive Stoffe zur Diagnostik und Therapie schwerwiegender Erkrankungen wie Krebs eingesetzt werden.
Öffentliche Führung: Hotlabor
Entdecken Sie bei unserer Führung die Kernanlage Hotlabor, eine für die Schweiz einzigartige Experimentiereinrichtung zur nukleartechnischen Untersuchung und Analyse von hochradioaktiven Materialien.
Operando phase mapping in multi-material laser powder bed fusion
This study introduces a custom-designed laser powder bed fusion machine, capable of operating in neutron instruments, to track material evolution during additive manufacturing. Using neutron imaging, this study uncovers how complex thermal cycling impacts phase development in multi-material parts, offering new insights into optimizing additive manufacturing processes and enhancing material properties for more precise and high-performance components.
Understanding the Interplay between Artificial SEI and Electrolyte Additives in Enhancing Silicon Electrode Performance for Li-Ion Batteries
Maintaining a stable solid electrolyte interphase (SEI) is crucial for Li-ion battery safety, especially with high-capacity anode containing silicon. Therefore, our study explored long-term cycling of Si electrodes with artificial alucone-based SEI, deposited by molecular layer deposition (MLD) in combination with a fluoroethylene carbonate (FEC) electrolyte additive. MLD of flexible Li-ion permeable artificial SEI coatings onto electrode resulted in improved capacity, enhanced Si electrode cycle life and capacity retention.
Operando Neutron Characterization During 3D Printing
A new laser powder bed fusion device enables real-time neutron diffraction and imaging, providing detailed insights into structural evolution, defect formation, and temperature mapping during metal additive manufacturing.
CSD Christmas
Our Christmas party was a truly unforgettable moment that brought us all a great deal of joy. The festively decorated room was bathed in warm light and the Christmas atmosphere was palpable from the very beginning. The scent of pine branches and mandarins was in the air and contributed to the cozy atmosphere.
«Die grösste Herausforderung ist die fehlende Akzeptanz für Windkraftanlagen»
Russell McKenna, Experte für Energiesystemanalyse, erzählt im Interview mit den ETH-News, wo er den grössten Handlungsbedarf sieht, um die Windenergie weiterzuentwickeln.
Die Polymechaniker im vierten Lehrjahr und ihr gemeinsames Projekt
Aus einer Idee entsteht ein Produkt für die ganze Werkstatt
YBa1−𝑥Sr𝑥CuFeO5 layered perovskites: An attempt to explore the magnetic order beyond the paramagnetic-collinear-spiral triple point
Layered perovskites of general formula AA'CuFeO5 are characterized by the presence of spiral magnetic phases whose ordering temperatures 𝑇spiral can be tuned far beyond room temperature by introducing modest amounts of Cu/Fe chemical disorder in the crystal structure. This rare property makes these materials prominent candidates to host multiferroicity and magnetoelectric coupling at temperatures suitable for applications. Moreover, it has been proposed that the highest 𝑇spiral value that can be reached in this structural family ( ∼400 K) corresponds to a paramagnetic-collinear-spiral triple point with potential to show exotic physics. Since generating high amounts of Cu/Fe disorder is experimentally difficult, the phase diagram region beyond the triple point has been barely explored. To fill this gap we investigate here eleven YBa1−𝑥Sr𝑥CuFeO5 solid solutions (0≤𝑥≤1 ), where we replace Ba with Sr with the aim of enhancing the impact of the experimentally available Cu/Fe disorder. Using a combination of bulk magnetization measurements, synchrotron x-ray and neutron powder diffraction we show that the spiral state with 𝐤𝑠=(1/2,1/2,1/2±𝑞) is destabilized beyond a critical Sr content, being replaced by a fully antiferromagnetic state with ordering temperature 𝑇coll2≥𝑇spiral and propagation vector 𝐤𝑐2=(1/2,1/2,0). Interestingly, both 𝑇spiral and 𝑇coll2 increase with 𝑥 with comparable rates. This suggests a common, disorder-driven origin for both magnetic phases, consistent with theoretical predictions.
Neues Verfahren steigert Leistung von Lithiumbatterien
Ein neuer Ansatz des PSI zur Leistungssteigerung von Akkus bietet der Industrie neue Chancen für effiziente und langlebige Energiespeicher.
Ein Tag im Personalrestaurant Oase
…..willst Du mehr wissen, was es alles braucht, um Dich im PSI zu verpflegen?
Araris Biotech: Strategische Partnerschaft im Bereich der Krebstherapie
Mit der neuen Partnerschaft mit Chugai Pharmaceutical Co. setzt Araris einen weiteren Schritt in der Weiterentwicklung innovativer Krebstherapien.
40 years of LNS
On 1st October 2024, the Laboratory for Neutron Scattering & Imaging turned 40 years old, which was celebrated during the traditional end-of-year party on 17th December.
Neue Schutzschicht macht Akkus leistungsfähiger
Die Energiedichte von Lithium-Ionen-Akkus erhöhen – eine am PSI entwickelte nachhaltige Methode zur Kathodenoberflächenbeschichtung macht’s möglich.
Connection between f-electron correlations and magnetic excitations in UTe2
The detailed anisotropic dispersion of the low-temperature, low-energy magnetic excitations of the candidate spin-triplet superconductor UTe2 is revealed using inelastic neutron scattering. The magnetic excitations emerge from the Brillouin zone boundary at the high symmetry Y and T points and disperse along the crystallographic b-axis. In applied magnetic fields ...
PSI-Jahresrückblick 2024
Lichtblicke – PSI-Forschung im Jahr 2024
Decentralized hydrogen-based stationary energy storage systems complemented by smart control can provide increased operational flexibility in the energy system
While the electrification of the energy system implies a reduction of greenhouse gas emissions greatly beneficial to society, it can also pose technical challenges. The most notable among these are that the capacity of the local electric grid may be exceeded, along with the occurrence of imbalances between decentralized renewable energy production and final consumption. Hydrogen-based energy storage systems (HESS) are regarded as promising solutions to address these challenges. However, the feasibility has not been demonstrated and the involved processes are not well characterized on a technical relevant power level, so far.
Small-angle scattering interferometry with neutron orbital angular momentum states
Methods to prepare and characterize neutron helical waves carrying orbital angular momentum (OAM) were recently demonstrated at small-angle neutron scattering (SANS) facilities. These methods enable access to the neutron orbital degree of freedom which provides new avenues of exploration in fundamental science experiments as well as in material characterization applications.
However, ....
Mitigating Cracks in Multi-Material Printing
Integrating metallic powders with thin foils in laser powder bed fusion can reduce interfacial cracks and improve microstructure quality in titanium-aluminum multi-material printing.
100 Tage als Mediamatik-Lernender am PSI
Als Mediamatiker helfe ich die Internetseite zu pflegen, auf Social Media zu posten sowie Fotos und Videos zu bearbeiten. In den ersten 100 Tagen meiner Lehre am PSI konnte ich schon viele grossartige Erfahrungen machen.
Die Kabel der SLS
Gebäudetechnik, Magnete, IT – viele Gruppen sind am Upgrade der SLS beteiligt. Ihr verbindendes Element sind mehrere hundert Kilometer Kabel.
IMPACT: Upgrade an PSI-Forschungsanlage beschlossen
Die Finanzierung der Umbauten an der Protonenbeschleunigeranlage des PSI wurde vom Schweizer Parlament bewilligt.
Fractional quasiparticles in three dimensions
Specific signatures of fractionalization have been observed in a three-dimensional system known as quantum spin ice.
Mapping the Nanoscale Architecture of Functional Materials
A new X-ray technique reveals the 3D orientation of ordered material structures at the nanoscale, allowing new insights into material functionality.
Evidence of antiferromagnetism in ultrathin metallic (111)-oriented LaNiO3 films
Antiferromagnets with exotic spin textures promise low-power spintronic devices with extremely high operating frequencies and resistance to external perturbations. In particular, the combination of highly tunable correlated electron physics, as in complex oxides, with metallicity and antiferromagnetism is desirable but exceedingly rare. LaNiO3, the lone example of a perovskite nickelate which is metallic across all temperatures, has long been a promising candidate, but the antiferromagnetic metallic state has remained elusive. We demonstrate the emergence ...
Exotics among the atoms
Muon experiments at the PSI are focusing on different isotopes.
Together for Science with Neutrons, Muons and X-rays
Strategic partnership between research facilities in UK and Switzerland will create new capabilities to address global challenges using neutrons, muons and X-rays.
ANAXAM feiert 5-jähriges Jubiläum
Wir gratulieren ANAXAM ganz herzlich zu seinem fünfjährigen Bestehen! Seit seiner Gründung im Jahr 2019 hat sich ANAXAM als verlässlicher Partner für die Industrie etabliert, der innovative Lösungen in der angewandten Materialanalytik bietet.
Jahresschlussapéro 2024
Ein erfolgreiches Berufsjahr geht zu Ende
Brigitte Decrausaz receives DECTRIS Award of Best Master's Thesis in Experimental Physics at UZH
Brigitte Decrausaz, PhD student at LNS, received the DECTRIS Award 2023/2024 for the Best Master's Thesis in Experimental Physics at the University of Zürich.