Thom Mason

Dr. Thom Mason became the 12th Director of Los Alamos National Laboratory and President of Triad National Security, LLC in November 2018. The Laboratory is a principal contributor to the U.S. Department of Energy mission to maintain the nation’s nuclear weapons stockpile. Los Alamos uses innovative science and technology to enhance global nuclear security and protect the world.

For the past 30 years, Thom has been involved in the design and construction of scientific instrumentation and facilities and the application of nuclear, computing, and materials sciences to solve important challenges in energy and national security. Most recently, Thom was the Senior Vice President for Global Laboratory Operations at Battelle where he had responsibility for governance and strategy across the six National Laboratories that Battelle manages or co-manages. Prior to joining Battelle, Thom worked at Oak Ridge National Laboratory (ORNL) for 19 years, including 10 years as the Laboratory Director. He moved to ORNL from the University of Toronto, where he was a faculty member in the Department of Physics. Thom has also previously worked as a senior scientist at Risø National Laboratory and a postdoctoral researcher at AT&T Bell Laboratories. He holds a PhD in Experimental Condensed Matter Physics from McMaster University and a BSc in Physics from Dalhousie University.