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Thermoluminescence Characteristics of Boron and Er³⁺ doped SiO₂

Suhaila Abu Bakar, and Yusoff Mohd. Amin, and Misni Misran, (2004) Thermoluminescence Characteristics of Boron and Er³⁺ doped SiO₂. Jurnal Fizik Malaysia, 25 (3 & 4). pp. 69-72. ISSN 0128-0333

Full text not available from this repository.

Affiliations

University of Malaya. Faculty of Science. Dept. of Physics
University of Malaya. Facuty of Science. Dept. of Chemistry

Abstract

The thermoluminescence (TL) emission properties of conventional silica (SiO₂) prepared by the sol gel technique are studied. The undoped monolithic silica glasses exhibit a TL peak at a temperature of 225°C ($T_{max}$), which can be used for ionising radiation dosimetry. The silica is doped with boron and erbium in order to increase TL response sensitivity and to widen the range of dose response. The boron doped SiO₂ is found to be more sensitive to radiation, and has shown almost no fading of TL signal compared with Er³⁺ doped SiO₂. The boron and Er³⁺ doped SiO₂ exhibited TL peaks at 370°C and 250°C, respectively, indicating the former had deep trapping levels. The boron doped SiO₂ showed a linear dose response over a range of ~1-250 Gy.

Item Type:Journal
Keywords:Silica, thermoluminescence emission
Subjects:Q Science, Computer Science
ID Code:2857

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[2] A. S. Marfunin, Spectroscopy, Luminescence and Radiation Centers in Mineral, 1st ed., Springer-Verlag, Berlin Heidelberg New York (1979), pp. 224-228.

[3] C. Jeffery Brinker and George W. Scherer, in Sol-Gel Science: The Physics And Chemistry Of Sol-Gel Processing, 1st ed., Academic Press, New York (1990), pp. 97-215.

[4] Masayuki Yamane, Sol-Gel Technology for Thin Film, Fibers, Preform, Electronics and Specialty Shapes, 1st ed. ed. L. C. Klein, Noyes, Park Ridge, N. J. (1988), pp. 200.

[5] K. Mahesh, P. S. Weng and C. Furetta, Thermoluminescence In Solids and Its Applications, 1st ed., Nuclear Technology Publishing, Kent, England (1989), pp. 85-87.

[6] S. W. S. Mckeever, in Thermoluminescence Dosimetry Material: Properties And Uses, 1st ed., Asford: Nuclear Technology Publications (1995), pp. 19-35.

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