The dosimetric properties of Borosilicate glass doped with Rare earth oxides

Abstract

In this thesis, the thermoluminescence emission and the TL dosimetric characteristics of Sm-doped lithium borosilicate glasses are experimentally reported and analyzed to present a new preferable glass composite for radiation dosimetry applications. This thesis includes five chapters, as follows: we will explain a detailed presentation of the thermoluminescence phenomenon, and the difference between it and other luminescence behaviors. We will also discuss the most important applications that depend mainly on this phenomenon, such as TL Dating of Archaeological and Geological Samples, in addition to using this phenomenon in the fields of radiometric measurements which is defined by thermoluminescence dosimetry (TLD). We will also present information about the dosimetric properties of materials through which it is possible to determine whether any material can be used in these applications. At the end of the chapter, we will briefly mention some of the most important commercial materials used for this purpose and the efforts of researchers in developing their properties. Finally, we will discuss the goal and the main axis of this study. we will present some of the most important theoretical models used to analyze TL- phenomenon. In addition to the methods for calculating kinetic parameters that have a great role in determining the dosimetric properties of TL materials. Finally, introducing the principle of X-Ray Diffraction (XRD) that will be relied upon in determining the non-crystal structure of the proposed glass material.