Reiner Kruecken was appointed Nuclear Science Division Director in June 2022. An internationally renowned nuclear physicist, his primary research focuses on the structure and dynamics of atomic nuclei. Prior to joining Berkeley Lab, he worked across a broad spectrum of nuclear science, including exotic nuclei and nuclear astrophysics, neutrinoless double beta-decay, heavy-ion collisions, and applied nuclear physics. Kruecken received his Ph.D. in nuclear physics from the University of Cologne, Germany, followed by a postdoctoral position at Berkeley Lab studying nuclear physics using the Gammasphere detector.

Ren Cooper was appointed Nuclear Science Division Deputy for Science in October 2022. He is also the Head of the Applied Nuclear Physics Program. His research focuses on the development of new concepts, systems, and algorithms for radiation detection and imaging in basic science, nuclear security, and medicine and he currently leads a portfolio of projects ranging from the development of novel semiconductor detectors to networked sensing and associated data fusion methods. Ren received his Ph.D. from the University of Liverpool, UK, and prior to joining LBNL in 2011 undertook three years of postdoctoral research at Oak Ridge National Laboratory where he developed new detectors and signal processing algorithms for neutrinoless double beta decay studies.

Tom Gallant was appointed Nuclear Science Division Deputy for Operations in May 2024. He has served in the Nuclear Science Division Office since 2007.