[en] The density of the metal atoms from wall sputtering in the marginal plasma layer of Textor is measured by laser-induced fluorescence spectroscopy. Measurements in the vicinity of the semispherical reference limiter showed a decrease of the metal atom density in radial direction towards the core plasma and a maximum metal atom density in toroidal direction. The intensity and location of the peak are determined by the position of the reference limiter relative to the core plasma. In the direct vicinity of the core plasma, where sputtering of the limiter surface is mainly caused by the ions of the marginal plasma layer, the peak is very high and shifted towards the ion side with reference to the flux direction. The author investigates the effects of the geometry of the sputtered reference limiter and the characteristic length of the plasma density profile in the marginal layer on the metal atom density distribution. The theory is formulated initially for exponential plasma density profiles and constant electron temperature. (orig./GG)