SNS Aerial View (IMAGE) DOE/Oak Ridge National Laboratory Caption The Spallation Neutron Source at Oak Ridge National Laboratory is powered by a 300-meter-long linear accelerator (seen at top) that has now reached a world-record 1.55 megawatts of operating power level. Credit Jason Richards/ORNL Usage Restrictions None License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.