Thermoluminescence Characteristics of Neodymium-Doped Silicon Dioxide Optical Fibers Subjected to X-ray

Abstract

In this article, we investigate thermoluminescence properties of Nd3+ doped silicon dioxide opti cal fiber. The samples were exposed to 10 MV X ray using a linear accelerator. The optical fiber was read out using Harshaw 3500 TLD reader. Nd doped optical fiber displays a linear TL response for the absorbed dose. The sensitivity of Nd doped optical fiber is 82.87 nC. mg–1 Gy–1, which is more sensitive to the other types of optical fiber. Nd+3 doped optical fiber displays clear single glow peak around 180°C. The peak shape method analysis reveals that the peaks obey general order kinetics. The activation energy of Nd doped optical fiber is found to be nearly 0.5 eV less than TLD 100 (1.6 eV). Zeff of neodymium doped silicon dioxide optical fiber is 13.48 that is near to the human bone. All of these TL characteristics indicate that Nd107 doped opti cal fiber as a potential TL dosimeter, for measuring photon irradiation. DOI: 10.1134/S0018143916040032