High-precision dosimeters are needed in brachytherapy treatments to ensure safe operation and adequate working conditions, to assess the correspondence between treatment planning and dose delivery, as well as to monitor the radiation dose received by patients. In this paper we present the development of a multi-sensor dosimeter platform targeted for brachytherapy environments. The performance of different scintillating materials response is assessed. The emission bands of most common scintillator materials used in ionizing radiation detection are typically below 550 nm, thus they may be prone to stem effect response. To avoid this effect we propose the use of scintillators with longer wavelength emission. Samples of neodymium doped glasses are evaluated as new infrared radioluminescent scintillators for real-time dosimeters, namely lithium lead boron silver (LLB4Ag) and lithium bismuth boron silver (LBiB4Ag) glasses. Their response is compared with the response of organic scintillator BCF-60 with a 530nm response.
Glasses from the system 15PbO-5Li<sub>2</sub>CO<sub>3</sub>-(80-x)B<sub>2</sub>O<sub>3</sub>-xAg<sub>2</sub>O (x=0.5,1,2 and 4) have been prepared by the melting
quenching technique. Their physical and structural properties were accessed by means of XRD, FTIR, SEM and EDS.
The prepared materials present a glass surface and amorphous nature. FTIR and Raman results indicate that silver oxide
acts as a network modifier even at small quantities, by converting three coordinated to four coordinated borons. These
results were evaluated by measuring the relative concentrations of BO<sub>3</sub> and BO<sub>4</sub> units in the glass matrix. Other physical
properties, such as density are also affected by the silver oxide composition.