Transport of alpha particles by 3D fields and MHD modes: perspectives from theory and modeling with implications for experiment

Elizabeth Tolman


Tuesday, April 9, 2019



PSFC Student Seminars

Next-generation tokamak experiments operating with DT fuel will have a significant population of energetic alphas from fusion. Good confinement of these alpha particles is important to experiment performance. Two effects which can degrade alpha confinement are ripple and Alfvén Eigenmodes. In this tutorial-style talk, we provide a brief introduction to three theoretical and computational methods for studying transport of alphas by these effects: collisionless guiding center calculations, drift-kinetic theory, and Monte Carlo orbit-following codes.  In addition, we offer a preview of recent work to advance understanding in these areas.