Electron spin resonance studies of defect centers induced in a high-level nuclear waste glass simulant by gamma-irradiation and ion-implantation

Raman and EPR studies of β-irradiated oxide glasses: The effect of iron concentration

“…When adding iron these defects creation and tendency to lowmembered rings decrease. These results tally with GriscomÕs works about phosphate glasses [6]. The hypothesis of Debnath [7] about hopping processes between two iron ions could then be assumed.…”

“…Some works by Griscom et al [6] on iron doped phosphate glasses by Electron Paramagnetic Resonance (EPR) measurements have shown that this cation stops the production of paramagnetic defects under irradiation. An explanation has been proposed by Debnath [7] considering possible hopping processes between ferrous and ferric ions consuming the excitons produced during the electronic excitation which cannot be used for the production of defects.…”

Chemical Decomposition of High-Level Nuclear Waste Storage/Disposal Glasses Under Irradiation

“…Much of the research carried out under this grant has been described in depth in two published papers [ 12,131 which are only briefly summarized . and updated below.…”

Structural studies on iron–tellurite glasses prepared by sol–gel method

“…The two signals can be independent of each other, because the amount of interstitial Fe 3+ ions can vary from sample to sample, depending on the manufacturing process. (ii) The g ≈ 2 feature is assigned to a ferromagnetic resonance of the ferromagnetic or ferrimagnetic single domains encounter in glasses [35][36][37]. Another interpretation about the origin of the signal around g ≈ 2 is related to the oxygen hole centers that should arise with electron centers.…”