Fig. 1From: Measurements of Defect Structures by Positron Annihilation Lifetime Spectroscopy of the Tellurite Glass 70TeO2-5XO-10P2O5-10ZnO-5PbF2 (X = Mg, Bi2, Ti) Doped with Ions of the Rare Earth Element Er3+ The examples of experimental PALS spectra of tellurite glasses and tellurite glasses doped Er3+ samplesBack to article page