Phys.Org (Nov. 23) -- The Advanced Photon Source (APS), a U.S. Department of Energy (DOE) Office of Science User Facility located at Argonne National Laboratory, recently unveiled a new capability: the Intermediate Energy X-ray (IEX) beamline at sector 29. Like the formation of a new particle in a collider, it was the research trajectory of two scientists that forged the foundations for IEX beamline: Physicists Juan Carlos Campuzano of the University of Illinois at Chicago and Peter Abbamonte of the University of Illinois in Urbana Champaign.