Magnetic Island Geometry (IMAGE) DOE/Princeton Plasma Physics Laboratory Caption Magnetic island geometry showing the asymmetry effect that is crucial in determining the mechanism for the density limit. Credit Reprinted with permission from <i>Phys. Plasmas</i> 22, 022514 (2015). Copyright 2015 AIP Publishing LLC. 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.