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The application of a bundling technique to model the diverse charge states oftungsten impurity species in total-f gyrokinetic simulations is demonstrated.The gyrokinetic bundling method strategically groups tungsten ions of similarcharge, optimizing computational efficiency. The initial radial configurationof these bundles and their respective charges are derived from a coronalapproximation and the quasi-neutrality of the plasma. A low-density JET H-modelike plasma is simulated using the neoclassical version of XGC across theentire plasma volume, spanning from the magnetic axis to the divertor. Anaccumulation of tungsten is observed at the pedestal top, as a result of low-Ztungsten ions moving inward from the scrape-off-layer (SOL) into the coreregion and high-Z tungsten ions moving outward from the core into the pedestal.This organization of the fluxes cannot be captured by a single tungsten-ionsimulation. Large up-down poloidal asymmetries of tungsten form in the pedestaland strongly influence the direction of neoclassical fluxes. The temperaturescreening effect and its correlation with asymmetries is analyzed.

Neoclassical transport of tungsten ion bundles in total-f neoclassical gyrokinetic simulations of a whole-volume JET-like plasma