Synthesis and thermoluminescence characterization of β-irradiated MgB4O7 phosphor co-doped with Dy and Na

İflazoğlu S., Kafadar V. E., YILMAZ A.

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, vol.197, 2025 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 197
  • Publication Date: 2025
  • Doi Number: 10.1016/j.jpcs.2024.112450
  • Journal Name: JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Chemical Abstracts Core, Chimica, Compendex, INSPEC, Metadex
  • Keywords: CGCD, Dosimetry, FT-IR, Kinetic parameters, MgB4O7:Dy, Na, Thermoluminescence (TL), XRD
  • Middle East Technical University Affiliated: Yes

Abstract

This study presents the successful synthesis of Dy and Na co-doped polycrystalline MgB4O7 phosphor via solidstate synthesis, followed by its thermoluminescence (TL) characterization after beta-irradiation. The crystal structure of the synthesized phosphor was confirmed through X-ray diffraction (XRD) analysis. The vibrational frequencies of the atomic/ionic bonds in the crystal lattice were examined using Fourier Transform Infrared (FT-IR) spectroscopy, while Scanning Electron Microscopy (SEM) was employed to investigate the morphological features of the MgB4O7:Dy,Na compound. Transmission Electron Microscopy (TEM) analysis was conducted to observe the structural characteristics and homogeneity in MgB4O7:Dy,Na. Furthermore, the thermoluminescence behavior of the phosphor was thoroughly assessed, revealing a TL glow curve comprising at least four distinct peaks, with the main dosimetric peak observed at approximately 200 degrees C. Repeatability and fading analyses indicate that this phosphor holds significant potential for application in radiation dosimetry under beta-irradiation.