The PSI Laboratory for Neutron and Muon Instrumentation is central to the operation of the Swiss Spallation Neutron Source SINQ, the Swiss Muon Source SµS and the source for ultracold neutrons UCN.
Lab News & Scientific Highlights
Dichotomous Electrons: Travelling without Moving
Neutron scattering experiments give new understanding of how localized and free-flowing electrons collaborate to create material functionality.
Field-tuned quantum renormalization of spin dynamics in the honeycomb lattice Heisenberg antiferromagnet YbCl3
The basis for our understanding of quantum magnetism has been the study of elegantly simple model systems. However, even for the antiferromagnetic honeycomb lattice with isotropic spin interactions – one of the simplest model systems – a detailed understanding of quantum effects is still lacking. Here, using inelastic neutron scattering measurements of the honeycomb lattice material YbCl3, we elucidate how quantum effects renormalize ...
Swiss precision optics in Sweden
PSI has finalized the precision Selene neutron optics for the ESTIA instrument. The complex state-of-the-art guide was installed at the European Spallation Source as a Swiss in-kind delivery.
Upcoming Events
Publications
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Albà A, Adelmann A, Rochman D
Uncertainty quantification of spent nuclear fuel with multifidelity Monte Carlo
Annals of Nuclear Energy. 2025; 211: 110892 (17 pp.). https://doi.org/10.1016/j.anucene.2024.110892
DORA PSI -
Berry L, Vasiliev A, Rochman D, Hursin M, Frankl M, Ferroukhi H
Application of the PSI cycle check-up methodology for full-core Monte Carlo simulations verified using pin power estimates and validated for hot zero power conditions
Annals of Nuclear Energy. 2025; 211: 110939 (14 pp.). https://doi.org/10.1016/j.anucene.2024.110939
DORA PSI -
Cherezov A, Vasiliev A, Ferroukhi H
Application of backward differential formula and Anderson's method for multigroup diffusion transient equation
Annals of Nuclear Energy. 2025; 210: 110837 (19 pp.). https://doi.org/10.1016/j.anucene.2024.110837
DORA PSI