Representative Plasma Geometries (IMAGE) DOE/Princeton Plasma Physics Laboratory Caption This image shows representative plasma geometries, with the X-point location circled in red. Credit Reprinted from T. Stoltzfus-Dueck et al., <i>Phys. Rev. Lett</i>. 114, 245001 (2015). Copyright 2015 by the American Physical Society. 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.