The analysis of thermoluminescent glow peaks of copper doped ZnS thin films after β-irradiation

Yazici, A. Necmeddin; Öztaş, Mustafa; Kafadar, V. Emir; Bedır, Metin; Toktamiş, Hüseyin

doi:10.1016/j.jlumin.2006.01.362

Cited by 18 publications

(1 citation statement)

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“…By using several heating rates the following linear equation ln can be obtained. A plot of ln(T 2 M /β) against 1/kT M should give a straight line with slope E and intercept ln(E/sk) [14].…”

Section: Variable Heating Rate (Vhr) Methodsmentioning

confidence: 99%

Influence of heating rate on thermoluminescence of Mg₂SiO₄ : Tb dosimeter

Gökçe¹,

Oğuz²,

Karalı³

et al. 2009

J. Phys. D: Appl. Phys.

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In this paper the influence of different heating rates on thermoluminescence (TL) kinetics, glow-peak temperatures, heights and integrated TL intensities of the main glow peak of recently produced Mg2SiO4 : Tb dosimeters are reported. The TL properties of the phosphor were investigated after β-irradiation at room temperature. Glow curve shape, peak shape, repeated initial rise and variable heating rate methods were used to analyse the TL kinetics of the main glow peak at 473 K. Results show that the TL glow peak of Mg2SiO4 : Tb phosphor obeys second-order kinetics. Analysis of the main dosimetric peak by using the methods mentioned above revealed that activation energy (E) is about 1 eV and the pre-exponential factor (s) is in the range 1010–1011 s−1. In addition it is ascertained that the glow-peak temperature increases with heating rate. The glow-peak height showed two maxima in the heating rate range investigated. The behaviour of the integrated TL intensities and the maximum glow-peak temperatures related to the heating rate have been discussed in terms of thermal quenching and clustering formation.

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Section: Variable Heating Rate (Vhr) Methodsmentioning

confidence: 99%