In 1996, he received the James Clerk Maxwell Prize for Plasma Physics for "seminal contributions to plasma theory, including extension of Landau damping to the nonlinear regime and demonstration of the importance of particle trapping; discovery of the plasma-wave echo; and pioneering studies of the confinement, transport, and thermal equilibria of non-neutral plasmas, liquids and crystals. His theoretical work and active guidance of experiments with trapped, non-neutral plasmas provide much of the foundation for this branch of plasma physics".[2]
