Ruaridh Macdonald is a Ph.D. candidate in nuclear science and engineering at MIT. In 2014 he joined the zero-knowledge group in LNSP, where he works on monte-carlo modeling of image methods, statistics, and theoretical aspects of design. Ruaridh previously worked on designing a portable version of MIT's Fluoride Salt-Cooled High-Temperature reactor. He has also worked on convergence methods for monte-carlo neutron transport, off-shore grid-scale energy storage, and neutron reflectors for fast reactors. Ruaridh completed his B.S. in nuclear science and engineering at MIT in 2012. He is the recipeint of the Carl G. Sontheimer Prize for Creativity and Innovation in Design, and holds a patent for the development of long-endurance aluminum-based power sources for small unmanned underwater vehicles (UUVs).