In 1984, at the University of Florida, Nagler initiated a research program using both time-resolved X-ray scattering and neutron scattering, and he was a founding member of the MRCAT beamline at the Advanced Photon Source, located in Argonne, Illinois. Nagler joined the former Solid State Physics Division’s Neutron scattering Group in 1995 and served as group leader for Neutron spectrometry from 1996 to 2005.