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Study of the Thermoluminescent Characteristics of Ceramic Roof Tiles Exposed to Beta Radiation

Published online by Cambridge University Press:  20 December 2012

A. R. García-Haro ,
R. Bernal ,
C. Cruz-Vázquez ,
S.E. Burruel-Ibarra ,
V.R. Orante-Barrón  and
F. Brown
A. R. García-Haro
Affiliation:
Departamento de Investigación en Polímeros y Materiales de la Universidad de Sonora, Apdo. Postal 130, Hermosillo, Sonora 83000 México.
R. Bernal
Affiliation:
Departamento de Investigación en Física de la Universidad de Sonora, Apdo. Postal 5-088, Hermosillo, Sonora, 83000, México.
C. Cruz-Vázquez
Affiliation:
Departamento de Investigación en Polímeros y Materiales de la Universidad de Sonora, Apdo. Postal 130, Hermosillo, Sonora 83000 México.
S.E. Burruel-Ibarra
Affiliation:
Departamento de Investigación en Polímeros y Materiales de la Universidad de Sonora, Apdo. Postal 130, Hermosillo, Sonora 83000 México.
F. Brown
Affiliation:
Departamento de Investigación en Polímeros y Materiales de la Universidad de Sonora, Apdo. Postal 130, Hermosillo, Sonora 83000 México.
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Abstract

In this work, thermoluminescence (TL) characteristics of roof tile ceramic samples previously exposed to beta radiation are reported for the very first time. TL measurements were carried out using powdered samples obtained by the the fine-grained method, with grain size ranged from 300 nm to 5 μm. Characteristic thermoluminescence glow curves showed a complex structure with a dosimetric maximum located at ~ 200 °C. TL response of roof tile samples increases as the radiation dose increases in the 25 Gy to 1.6 kGy range. One response showed a linear behaviour, with no evidence of saturation within the dose interval investigated. The entire TL glow curve exhibited a remarkable reusability during 10 consecutive irradiation-TL readout cycles. The total TL signal showed a very low fading and remained almost constant after 3 h of irradiation and the corresponding TL readout. TL dosimetry features of powdered roof tile place it as a promising material in retrospective dosimetry as well as in possible TL dating applications.

Keywords

ceramicgrain sizeradiation effects
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1481: Symposium 2D – Structural and Chemical Characterization of Metals, Alloys and Compounds—2012 , 2012 , pp. 89 - 95
Copyright
Copyright © Materials Research Society 2012

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