Synthesis, Structural Characterization and Thermoluminescence Properties of β-Irradiated Wollastonite Nanophosphor

Autor:	B.M. Nagabhushana, H. Nagabhushana, K. V. V. S. B. S. R. Murthy, Rekha G. Damle, C. Shivakumara, S.R. Kulkarni
Rok vydání:	2011
Předmět:	Materials science Dosimeter Scanning electron microscope Analytical chemistry Mineralogy Phosphor engineering.material Wollastonite Thermoluminescence Nanocrystalline material Transmission electron microscopy Ceramics and Composites engineering Irradiation
Zdroj:	Transactions of the Indian Ceramic Society. 70:163-166
ISSN:	2165-5456 0371-750X
DOI:	10.1080/0371750x.2011.10600165
Popis:	Nanocrystalline wollastonite (?-CaSiO3) phosphor powder has been synthesized by low temperature combustion method and characterized by powder XRD (X-ray diffraction). The structural morphology and the particle size have been analyzed by SEM (scanning electron microscopy) and TEM (transmission electron microscopy) respectively. The powder has been subjected to ?-irradiation and the resulted thermoluminescence (TL) behaviour has been investigated. The TL glow curves reveal that the TL intensity increases with the radiation dose, a property desired by a TL dosimeter. The trapping parameters like activation energy (E) and order of kinetics (b) were estimated by deconvolution method using peak shape of 60 Gy glow curve and the results are discussed. © 2011 The Indian Ceramic Society.
Databáze:	OpenAIRE
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