Physicist Luis Delgado-Aparicio (IMAGE) DOE/Princeton Plasma Physics Laboratory Caption Physicist Luis Delgado-Aparicio with figure of Madison Symmetric Torus from paper.. Credit Photo and collage buy Elle Starkman/PPPL Office of Communications. Usage Restrictions No restrictions. License Public Domain 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.