TL dosimetric properties of Li2O–B2O3 glasses for gamma dosimetry

In this work, the thermoluminescence (TL) dosimetric characteristics of lithium borate glasses have been studied in detail before and after doping with silver. The glass specimens were prepared using a conventional melt-quenching method and checked using X-ray diffraction (XRD) pattern. The resultant glow curve of the undoped γ-irradiated samples showed one strong peak at about 178 °C and at a constant heating-rate (β) of 5 °C/s. While, the Ag-doped samples showed two TL glow peaks around 220 and 320 °C, which were mainly attributed to the Ag+ ions. Trap parameters of glow peaks of the present glass systems were extracted. The dosimetric characteristics of glass specimens were read from the TL γ-dose response curve, which showed a reasonably good linearity behavior between glow peak areas and γ-dose values. The present results revealed the importance of using such current selective glass structures as γ-radiation detectors within the studied dose-range where an acceptably good fading response was observed.