TY  - JOUR
AU  - Schluck, Friedrich
TI  - Kinetic modeling of seeded nitrogen in an ITER baseline scenario
JO  - Plasma research express
VL  - 2
IS  - 1
SN  - 2516-1067
CY  - Philadelphia, PA
PB  - IOP Publishing Ltd.
M1  - FZJ-2020-01345
SP  - 015015 -
PY  - 2020
AB  - ITER as the next-level fusion device is intended to reliably produce more fusion power than required for sustainably heating its plasma. Modeling has been an essential part of the ITER design and for planning of future experimental campaigns. In a tokamak or stellarator plasma discharge, impurities play a significant role, especially in the edge region. Residual gases, eroded wall material, or even intentionally seeded gases all heavily influence the confinement and, thus, the overall fusion performance. Nitrogen is such a gas envisaged to be seeded into a discharge plasma. By modeling the impurities kinetically using the full three-dimensional Monte-Carlo code package EMC3-EIRENE, we analyze the distribution of nitrogen charge-state resolved in a seeded ITER baseline scenario and draw conclusions for the hydrogen background plasma density. Lastly, we compare the influence of a more refined kinetic ion transport in EIRENE including additional physical effects on the impurity density.
LB  - PUB:(DE-HGF)16
DO  - DOI:10.1088/2516-1067/ab7c2e
UR  - https://juser.fz-juelich.de/record/874254
ER  -