Submit proposal ↗ FacilitiesOak Ridge National Laboratory (ORNL), SNS, Oak Ridge National Laboratory (ORNL), HFIRDeadline10 Mar 2027, 12:00 US Eastern (EST/EDT)TypeStandard General User proposal call for the Spallation Neutron Source (SNS) and High Flux Isotope Reactor (HFIR), Oak Ridge National Laboratory, for experiments July–December 2027 (cycle 2027-B).Deadline: 10 March 2027, noon US Eastern.