Advanced Photon Source (IMAGE) DOE/Argonne National Laboratory Caption The Advanced Photon Source (APS) is one of several X-ray science facilities around the world banding together to fight the COVID-19 pandemic. Credit Image by 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.