Atom Defects 2 (IMAGE) DOE/Argonne National Laboratory Caption Researchers relied on powerful X-ray tools at the Advanced Photo Source to image material defects as they formed. Credit rk Lopez/Argonne National Laboratory 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.