Thermoluminescence Performance of Carbon–doped Aluminium Oxide for Dose Measurement by Various Preparation Methods

Abstract

Thermoluminescent dosimeter (TLD) of carbon–doped aluminium oxide (α–Al2O3:C) produced in the form of single crystals show high sensitivity to ionizing radiation (about 40–60 times higher than TLD–100 (LiF:Mg,Ti)). The present article offers a review of the materials preparation and corresponding thermoluminescence (TL) properties of α–Al2O3:C subjected to various types of ionizing radiations. Different methods of α–Al2O3:C preparation in form of single crystal and thin films are reviewed. The development of methods of preparation is based on the approaches that involve the evaluation of the luminescence light yield in TL process. Most of the methods used were suitable, but each of these methods has their advantages and disadvantages depending on the required form of materials. Considering the results presented by various authors, possible better method of material preparation is proposed. The potential alternative fabrication technique of α–Al2O3:C thin film by using radio–frequency magnetron sputtering is briefly discussed.