Simulation of Fusion Plasma (IMAGE) DOE/Princeton Plasma Physics Laboratory Caption Simulation shows trapped electrons at left and passing electron at right that are carried in the bootstrap current of a tokamak. Credit Kwan Liu-Ma, University of California, Davis 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.