About
Dr. Andrea "Annie" Kritcher is a distinguished nuclear engineer and physicist at Lawrence Livermore National Laboratory (LLNL), where she serves as the lead for Design and Integrated Modeling in the Inertial Confinement Fusion (ICF) program at the National Ignition Facility (NIF). She was the principal designer and campaign lead for the historic December 5, 2022, experiment that achieved the world's first controlled fusion ignition in a laboratory setting, producing more energy from fusion reactions (3.15 MJ) than the laser energy delivered to the target (2.05 MJ), marking a breakthrough in achieving scientific breakeven and fusion target gain exceeding unity. Her innovative target designs, incorporating advanced simulations, diamond ablators, and optimized laser conditions, have enabled repeated ignition shots and record yields up to 5.2 MJ, advancing both national security applications in stockpile stewardship and the prospects for inertial fusion energy. Kritcher began her career at LLNL as a summer intern in 2004, completed her Ph.D. thesis work there, became a Lawrence postdoctoral fellow, and joined the scientific staff in 2012. She holds a B.S.E. in Nuclear Engineering and Radiological Sciences from the University of Michigan (2005) and M.S. and Ph.D. degrees in Nuclear Engineering with a focus on plasma physics from the University of California, Berkeley. An American Physical Society Fellow, she has received numerous accolades, including the 2024 David J. Rose Excellence in Fusion Engineering Award from Fusion Power Associates, recognition on TIME magazine's 100 Most Influential People list in 2023, and widespread acclaim for tackling one of fusion's greatest challenges through rigorous, data-driven design leadership.
