Study of Heating Rate Effect on Thermoluminescence Glow Curves of LiF: Mg, Cu, P
Main Article Content
Abstract
The samples of LiF: Mg,Cu,P powder (xeri: GR-200) were irradiated by the gamma radiation resource with varied exposed dose. The glow curves of thermoluminescence (TL) material were observed with the defferent heating rates. The influence of heating rate on the thermoluminescence property of LiF: Mg,Cu,P was analyzed. The results showed that as the heating rate increases, the peak intensity at the maximum decreases and shifts to higher temperature. The thermoluminesecnce sensitivity of the material also changes and has the optimal value at 6oC/s. This value is also adaptable for measurement of natural environmental and archaeologicaldose.
Keywords:
Thermoluminescence dosimetry, Environment, Archaeology
References
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[4] Vu Thi Thai Ha, Nguyen Thi Quy Hai, Nguyen Ngoc Long,Le Van Vu. “Preparation and characteristics of LiF:Mg,Cu,Na,Sithermoluminescent material”. VNU Journal of Science, Mathematics - Physics 23 (2007) 225-231.
[5] M.Oberhofer., A.Scharmann. “Applied Thermoluminescence Dosimetry”. AdamHilger, Bristolm(1981).
[6] S.W.S. McKeever. “Thermoluminiscence of Solids”, World Scientific, First edition, New Jersey(1985).
[7] C.R. Watson. “Linearity of TLD response curves”. Health Phys, 18, (1970) 168–169.
[8] D.R. Vij, “Thermoluminescent Material”, Prentice-Hall, Englewood Cliffs NJ, 1993.
[9] C.R. Hirning. “Detection and determination limitsfor thermoluminiscence osimetry”.Health Phys. 62(3), (1992) 223-230.