Radio-photoluminescence phenomenon in Cs2O-SrO-Al2O3-P2O5 glasses doped with different concentrations of Ag2O

In this study, Ag2O-Cs2O-SrO-Al2O3-P2O5 glasses with different Ag concentrations (0, 0.1, 0.3, 1.0, and 3.0 mol. %) were made by the melt-quenching method. In addition, the photoluminescence (PL) properties, the radio-photoluminescence (RPL) phenomenon, and spatial resolution on the X-ray imaging by the RPL were studied. The RPL was observed by irradiating with X-rays as an appearance of a new PL emission at around 590 nm. According to the shape of the PL spectrum and lifetime, the luminescence was confirmed to be due to Ag2+ with a lifetime constant of 14.7-45.5 ns. From the X-ray imaging resolution test, the 3.0% Ag-doped sample showed a spatial resolution of at least 10.0 LP/mm.

Automated summary

Ag2O-Cs2O-SrO-Al2O3-P2O5 glasses with different Ag concentrations (0, 0.1, 0.3, 1.0, and 3.0 mol. %) were prepared by the melt-quenching method. The photoluminescence properties were investigated and a new photoluminescence emission at around 590 nm was observed. The luminescence was confirmed to be due to Ag2+ with a lifetime constant of 14.7-45.5 ns according to the shape of the PL spectrum and lifetime. The 3.0% Ag-doped sample showed a spatial resolution of at least 10.0 LP/mm in X-ray imaging resolution test.