Thermoluminescence properties of Tb doped Mg2SiO4 after beta irradiation

---

Atıf İçin Kopyala

AKÇA S., Portakal Z. G., DOĞAN T., Kucuk N., Canımoğlu A., TOPAKSU M., ...Daha Fazla

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, cilt.458, ss.12-20, 2019 (SCI-Expanded)

• Yayın Türü: Makale / Tam Makale
• Cilt numarası: 458
• Basım Tarihi: 2019
• Doi Numarası: 10.1016/j.nimb.2019.07.042
• Dergi Adı: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
• Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
• Sayfa Sayıları: ss.12-20
• Anahtar Kelimeler: Mg2SiO4, Rare earths, Thermoluminescence, Heating rate, Kinetic parameters, HEATING RATE DEPENDENCE, MAGNESIUM ORTHOSILICATE, STIMULATED LUMINESCENCE, ZNB2O4 PHOSPHORS, TERBIUM, TEMPERATURE, SM3+, SPECTRA, MODEL, PEAKS
• Çukurova Üniversitesi Adresli: Evet

Özet

In this study, we performed Thermoluminescence (TL) experiments to extract the trapping parameters and dosimetric properties of Tb-doped Mg2SiO4 phosphors. Glow peaks located at 193, 270, and 350 degrees C were observed in the glow curve but the peak at 193 degrees C was especially investigated as a dosimetric peak in this study. We also observed an anomalous heating rate effect in which the maximum TL intensity of the glow curve augmented with an increasing heating rate. The computerized glow curve deconvolution (CGCD) method, initial rise (IR) and Hoogenstraaten's method were used to determine the activation energies of associated trapping centers for both BSL-TL 365 nm and IRSL-TL wideband blue filters. The TL characteristics of this phosphor indicate that Mg2SiO4:Tb3+ could be a promising material for dosimetric applications. Efforts should be made to improve the fading behaviour by adding other activators as co-dopants.