Multi-charge-state ion cross-field transport in presence of background ion species

Multi-ion cross-field transport is crucial for many plasma applications, including nuclear fusion. However, cross-field transport is sensitive to the ability of ions to occupy multiple charge states. We find that it is possible to generalize partial-ionization deconfinement effect [1] to the case when background ion species are present. Specifically, in the case of one background ion species and one ion species which can be in two charge states, individual ion density profiles have to be in generalized pinch (Taylor) equilibrium. Furthermore, we describe the limits of generalization and additional new effects if other background ion species or accessible charge states are introduced. These results provide an additional step toward the first-principles description of impurity transport in magnetic confinement fusion devices.