A method of removing helium ash and impurities from fusion reactors

By injecting streams of small pellets through the edge of a reactor plasma, helium ash and other impurities can be captured and removed from the reactor. Calculations show that sufficient pumping capacity is available to remove 1021 He/s and that the equilibrium density of pellet material in the plasma is probably tolerable. If successful, this method of ash removal and impurity control simplifies reactor design considerably