Nuclear -- Scale and Speed (IMAGE) DOE/Oak Ridge National Laboratory Caption ORNL researchers simulated radiation transport in small modular reactors, or SMRs, by running Monte Carlo codes on Summit, the world's most powerful supercomputer. The simulations factor into part of an Exascale Computing Project called ExaSMR. Credit Steven Hamilton/Oak Ridge National Laboratory, U.S. Dept. of Energy Usage Restrictions None License Licensed 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.