The European Spallation Source (ESS), currently under construction in Lund, Sweden, has recently obtained the green light to begin test operations for neutron production. This development has been characterized as a significant milestone by Helmut Schober, the general director of ESS. The facility aims to be fully operational by 2028, where it will utilize proton acceleration to collide with a tungsten target station, generating neutrons for scientific research.

Once in full operation, ESS will accelerate protons to 96% of the speed of light using a linear accelerator. The resulting collisions will produce neutrons that will be directed to various instruments for researchers to explore atomic structures and investigate material behaviors. This capability will serve as a powerful tool for scientists across multiple fields, enhancing their understanding of the fundamental aspects of materials.

The approval for the test operations has been granted by the Swedish Radiation Safety Authority, which indicates a regulatory milestone in the development of the facility. The successful initiation of these test operations is a critical step towards the eventual functionality of ESS, positioning it as a key contributor to global research initiatives in the coming years.