2025 SNS and HFIR Calendar Poster

The 2025 Neutron Sciences calendar poster features some of the scientific and operational achievements at Oak Ridge National Laboratory’s Spallation Neutron Source (SNS) and the High Flux Isotope Reactor (HFIR). These world-class user facilities attract scientists from around the globe to do research that helps answer big science questions about the fundamental nature of materials at the atomic scale and results in innovations that improve our daily lives.