  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.
