Author information (IMAGE) National Research Council of Science & Technology Caption (From left to right) Corresponding author: Professor Yong-Su Na of Seoul National University, First Author: Dr. Hyunsun Han of Korea Institute of Fusion Energy, Sangjin Park of Seoul National University. Credit Korea Institute of Fusion Energy (KFE) Usage Restrictions The sources of photos and research results from the KFE must be specified. License Original 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.