CC BY 3.0 DEEbeling, PolinaEhrt, DorisFriedrich, Manfred2024-01-052024-01-052000https://oa.tib.eu/renate/handle/123456789/14066https://doi.org/10.34657/13096For the X-ray irradiated fluoride-phosphate (EP) glasses with different phosphate eontent (from 0 to 20 mol%), a number of different radiation-induced defect centers (DC) were detected, which can be subdivided into three groups: phosphate, oxygen and fluorine related DC. The phosphate and oxygen related defects are paramagnetic, their optical absorptions were established by means of band separation and correlation to EPR signals. The non-paramagnetic fluorine-related color centers (FD centers) were found for FP glasses with lower (≤ 2 mol%) phosphate content by means of band separation of induced spectra of optical absorption and annealing experiments.enghttps://creativecommons.org/licenses/by/3.0/de/660Article