Thermoluminescence properties of nano-alumina with two different particle sizes

S. Mammadov; M. Gurbanov; L. Ahmadzade; A. Abishov

doi:10.15330/pcss.24.3.584-588

Authors

S. Mammadov Institute of Radiation Problems, Azerbaijan National Academy of Science, Baku, Azerbaijan
M. Gurbanov Institute of Radiation Problems, Ministry of Science and Education; Baku, Azerbaijan
L. Ahmadzade Institute of Radiation Problems, Ministry of Science and Education; Baku, Azerbaijan
A. Abishov Institute of Radiation Problems, Ministry of Science and Education; Baku, Azerbaijan

DOI:

https://doi.org/10.15330/pcss.24.3.584-588

Keywords:

Activation energy, Frequency factor, GlowFit, Nano α-alumina, Thermoluminescence

Abstract

This research aims to examine the thermoluminescence (TL) properties of nano-sized alumina, including the relationship between TL intensity and absorbed dose, the identification of individual luminescence peaks, and determining trap parameters for use as a possible dosimeter. The samples were exposed to 530 to 2646 Gy doses from ⁶⁰Co irradiation. The results show that micro-sized α-Al₂O₃ had a main dosimetry peak at Tm = 435 K, while nano-α-Al₂O₃ samples with particle sizes of 40 and 50 nm displayed a TL luminescence glow curve, with the primary dosimetry peak located in the low-temperature range and a complex structure at higher temperatures (above 500 K). The primary dosimetry peak was influenced by nanoparticle size, with a maximum of 460 K for the 40 nm sample and 467 K for the 50 nm sample. The main dosimetry peak was described by the superposition of two peaks

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