Physicists Developing Pre-Exascale Computer Code (IMAGE) DOE/Princeton Plasma Physics Laboratory Caption PPPL physicists working on development of XGC code for simulating the behavior of transport barrier particles. From left: Robert Hager, Seung-Ho Ku, team leader C.S. Chang, Stephane Ethier. Credit Elle Starkman/PPPL Office of Communications 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.