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Title: Dependence of glow curve structure on the concentration of dopants in LiF:Mg,Cu,Na,Si thermoluminescent material
Authors: Vu, Thi Thai Ha
Nguyen, Thi Quy Hai
Nguyen, Ngoc Long
Keywords: glow curve structure;dopants;thermoluminescent material
Issue Date: 2009
Publisher: H. : ĐHQGHN
Series/Report no.: Journal of Mathematics- Physics
Abstract: Lithium fluoride (LiF) thermoluminescent powder doped with Mg, Cu, Na, and Si as activators was prepared. The dopant concentrations were varied over the wide ranges as follows: Mg (0.05 - 1.0 mol$\%$), Cu (0.01 - 1.0 mol$\%$), Na,Si (0.3 - 2.4 mol$\%$). The results indicated that the Mg and Cu activators are crucial dopants in the LiF:Mg,Cu,Na,Si phosphors. The LiF:Cu,Na,Si samples without Mg exhibit a peak at low temperature in the thermoluminescent glow curve and in the absence of Cu, the LiF:Mg,Na,Si samples exhibit a peak at high temperature. The Na,Si were effective dopants in producing the high intensity of the low-temperature peaks and the main peak. The emission spectrum measurements at each peak temperature of the TL glow curve were carried out for the LiF:Mg,Cu,Na,Si sample. The results showed that with increasing the peak temperature of the TL glow curve, the peak wavelength is generally shifted towards the low wavelength side.
ISSN: 2588-1124
Language: en
Appears in Collections:Mathematics and Physics

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