Beamline at the APS (IMAGE) DOE/Argonne National Laboratory Caption From left: Physicist and Group Leader Shelly Kelly describes the unique monochromator in the recently upgraded 25-ID beamline at the APS to Senior Chemist Zonghai Chen, Postdoc Jiyu Cai and Physicist Zhan Zhang. Credit (Image by Argonne National Laboratory/Mark Lopez.) 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.