Synthesis, thermoluminescence characterizations, and photon attenuation parameters of MgAl₂O₄ structure doped with different ions

Abstract

In this work, different ion co‐doped Mg1‐xAl2O4 nanophosphors, coded as M5Cr‐5LaA, M5Cr‐5CuA, M0.07Si‐0.03CeA, and M0.05Ti‐0.05LaA, where 5Cr‐5La, 5Cr‐5Cu, 0.07Si‐0.03Ce, and 0.05Ti‐0.05La representing the added ions (mol%), were prepared using the sol–gel method. Phase structure, transmission electron microscope (TEM) images, and element feasibility were checked using X‐ray diffraction, TEM analysis, and energy dispersive X‐ray (EDX) spectroscopy. Their thermoluminescence (TL) response was checked using a 5 Gy γ‐test dose. The M0.05Ti‐0.05LaA sample was found to be best for the TL response with an ~1.1 times response compared with that of the MTS‐700 commercial detector. A wide range of dose–responses for the M0.05Ti‐0.05LaA sample was found up to a 20 Gy γ‐dose with the lowest detectable dose of ⁓23 μGy. Photon attenuation parameter results were Zeff ⁓10, which mean that the M0.05Ti‐0.05LaA sample could be considered as a near tissue equivalent material. Due to this study, the M0.05Ti‐0.05LaA sample can be considered as a promising detector for application in personal and medical dosimetric monitoring.