APS-Argonne (IMAGE) DOE/Argonne National Laboratory Caption The Advanced Photon Source at Argonne is one of the most productive X-ray light sources in the world. In a typical year, 5,500 scientists from around the world use it for research in a wide variety of disciplines. Credit (Image by Argonne National Laboratory.) Usage Restrictions Original content 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.