TL and OSL characteristics of the fluoroperovskite KMgF3:Eu,Yb, Li for dosimetry applications

Guckan V., Altunal V., Polymeris G. S., Ozdemir A., Zhydachevskyy Y., Yegingil Z.

JOURNAL OF LUMINESCENCE, cilt.251, 2022 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 251
  • Basım Tarihi: 2022
  • Doi Numarası: 10.1016/j.jlumin.2022.119213
  • Dergi Adı: JOURNAL OF LUMINESCENCE
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Chemical Abstracts Core, Communication Abstracts, INSPEC
  • Anahtar Kelimeler: Perovskite, KMgF3, Optically stimulated luminescence, Radiation detection and measurement, Thermoluminescence, Radiation dosimetry, Emission spectra, OPTICALLY STIMULATED LUMINESCENCE, COMPUTERIZED CURVE DECONVOLUTION, LM-OSL, ELECTRONIC-PROPERTIES, DOSE-RESPONSE, DOPED KMGF3, CW-OSL, THERMOLUMINESCENCE, QUARTZ, PHOTOLUMINESCENCE
  • Çukurova Üniversitesi Adresli: Evet

Özet

The purpose of this work was to investigate the dosimetric and luminescence properties of the novel KMgF3: Eu-0.5%,Yb-0.1%,Li-15% fluoroperovskite synthesized using the sol-gel method. The luminescence signals were characterized using Optically Stimulated Luminescence (OSL) spectra, Linearly-Modulated OSL (LM-OSL), Continuous-Wave OSL (CW-OSL), and Thermoluminescence (TL) techniques. The blue light (470 nm) stimulated OSL associated with Eu2+, and Eu3+ emissions was correlated with the TL peaks up to 300 degrees C. The photoionization cross-section of each OSL component was evaluated using deconvolution analysis following two different optical stimulation modes, namely LM-OSL and CW-OSL. The activation energy values were evaluated using the T-m-T-stop and CGCD methods. OSL signal fading of 5% and 13% was observed at the end of 24 h and over the next three months, respectively. The results indicate that the OSL from KMgF3:Eu-0.5%,Yb-0.1%,Li-15% fluoroperovskite has suitable properties for dosimetry, including high sensitivity to ionizing radiation and a wide linear dose range (0.1-500 Gy). These results enhance the understanding of the origin of the luminescence properties in this material and this work paves the way toward its utility for dosimetry purposes.