Thermoluminescence characteristics of a novel Li2MoO4 phosphor: Heating rate, dose response and kinetic parameters

被引:14
|
作者
Souadi, G. [1 ]
Kaynar, U. H. [2 ]
Oglakci, M. [3 ]
Sonsuz, M. [3 ]
Ayvacikli, M. [4 ]
Topaksu, M. [3 ]
Canimoglu, A. [5 ]
Can, N. [1 ,6 ]
机构
[1] Jazan Univ, Dept Phys, Coll Sci, Jazan, Saudi Arabia
[2] Izmir Bakircay Univ, Dept Fundamental Sci, Fac Engn & Architecture, Izmir, Turkey
[3] Cukurova Univ, Arts Sci Fac, Dept Phys, TR-01330 Adana, Turkey
[4] Manisa Celal Bayar Univ, Hasan Ferdi Turgutlu Technol Fac, Mech Engn, Turgutlu Manisa, Turkey
[5] Nigde Omer Halisdemir Univ, Fac Arts & Sci, Dept Phys, Nigde, Turkey
[6] Manisa Celal Bayar Univ, Fac Arts & Sci, Dept Phys, Muradiye Manisa, TR-45010 Muradiye Manisa, Turkey
关键词
Li2MoO4; Thermoluminescence; Kinetic parameters; GOODNESS-OF-FIT;
D O I
10.1016/j.radphyschem.2022.110025
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Lithium molybdate (Li2MoO4) phosphor was synthesized by a gel combustion method and its thermoluminescence properties were studied with the irradiation of beta. Various Heating Rate (VHR), Initial Rise (IR), and Computerized Glow Curve Deconvolution (CGCD) methods were used to determine the kinetic parameters (activation energy E (eV), frequency factor s (s(-1)), and kinetic order b) of the visible glow peaks. According to the kinetic study, the TL glow curve is made up of seven separate peaks with activation energies of 1.05, 0.76, 0.40, 0.60, 0.78, 1.81 and 1.25 eV and these peaks follow general-order kinetics. The results clearly showed that undoped Li2MoO4 has a potential to be considered in dosimetric applications where high doses have to be monitored as in the case of clinical dosimetry.
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页数:8
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