Plasma testing in SMART (VIDEO) DOE/Princeton Plasma Physics Laboratory This video is under embargo. Please login to access this video. Caption A microwave-heated glow discharge runs in SMART as a test of the tokamak. Credit University of Seville Usage Restrictions Credit must be given to the creator. License CC BY 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.