Fusion Science and Technology / Volume 47 / Number 3 / April 2005 / Pages 779-783
Technical Paper / Fusion Energy - Plasma Engineering, Heating, Current Drive, and Control
Pellet injection with a bent drift tube is considered as one of the flexible methods to have a variety of fueling locations and injection angles in fusion plasma. Since both pellet mass and velocity greatly affect the plasma properties, mass loss and velocity attenuation of the pellet in the drift tube should be evaluated properly. We focused on the impact of the pellet on the tube wall and numerically estimated the mass loss and the velocity attenuation.