4 papers · 1 filter
The pellet rocket effect in magnetic confinement fusion plasmas
Nico J. Guth, Oskar Vallhagen, Per Helander +3
Pellets of frozen material travelling into a magnetically confined fusion plasma are accelerated by the so-called pellet rocket effect. The non-uniform plasma heats the pellet abla…
The effect of plasmoid drifts on the pellet rocket effect in magnetic confinement fusion plasmas
N. J. Guth, O. Vallhagen, P. Helander +4
We detail here a semi-analytical model for the pellet rocket effect, which describes the acceleration of pellets in a fusion plasma due to asymmetries in the heat flux reaching the…
The importance of the classical channel in the impurity transport of optimized stellarators
S. Buller, A. Mollén, S. L. Newton +2
In toroidal magnetic confinement devices, such as tokamaks and stellarators, neoclassical transport is usually an order of magnitude larger than its classical counterpart. However,…
Effect of partially-screened nuclei on fast-electron dynamics
Linnea Hesslow, Ola Embréus, Adam Stahl +4
We analyze the dynamics of fast electrons in plasmas containing partially ionized impurity atoms, where the screening effect of bound electrons must be included. We derive analytic…