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Temperature Effect on the Thermoluminescent Signal Induced by Gamma Radiation in NaCl

Published online by Cambridge University Press:  13 February 2015

Demetrio Mendoza Anaya ,
Pedro R. González Martínez ,
María E. Fernández García ,
Gilberto Mondragón Galicia  and
Claudia E. Gutiérrez Wing
Demetrio Mendoza Anaya*
Affiliation:
Instituto Nacional de Investigaciones Nucleares; Carr. México-Toluca s/n La Marquesa, Ocoyoacac, Edo. de México C.P. 52750, México.
Pedro R. González Martínez
Affiliation:
Instituto Nacional de Investigaciones Nucleares; Carr. México-Toluca s/n La Marquesa, Ocoyoacac, Edo. de México C.P. 52750, México.
María E. Fernández García
Affiliation:
Instituto Nacional de Investigaciones Nucleares; Carr. México-Toluca s/n La Marquesa, Ocoyoacac, Edo. de México C.P. 52750, México.
Gilberto Mondragón Galicia
Affiliation:
Instituto Nacional de Investigaciones Nucleares; Carr. México-Toluca s/n La Marquesa, Ocoyoacac, Edo. de México C.P. 52750, México.
Claudia E. Gutiérrez Wing
Affiliation:
Instituto Nacional de Investigaciones Nucleares; Carr. México-Toluca s/n La Marquesa, Ocoyoacac, Edo. de México C.P. 52750, México.
*
*[email protected]
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Abstract

The effects of thermal treatments on the thermoluminescent (TL) signal of NaCl (ACS reagent) induced by gamma radiation were investigated. Samples of NaCl were thermally treated at 500, 800 and 1000 °C and characterized by X-Ray diffraction and scanning electron microscopy. After their exposure 0.1 to 150 Gy of gamma radiation from a gamma-ray source of 60Co, a TL curve for each temperature of treatment was obtained. We observed a different TL behavior on the irradiated samples as a function of the temperature applied during the thermal treatments. For the sample treated at 500 °C, three peaks centered at 102, 133 and 228 °C were observed. Samples treated at 800 and 1000 °C showed two main peaks at 128 and 220 °C and 136 and 219 °C, respectively; however, the highest TL intensity signal was observed for the sample at 800 °C. All samples showed a linear dependency of the integrated TL intensity from the signal emitted as function of the irradiation time. This is an important advantage because NaCl could be applied as a very low cost thermoluminescent dosimetric material. A comparison between the TL signal induced by gamma radiation in pure and Eu doped NaCl is also reported.

Keywords

luminescenceradiation effectx-ray diffraction (XRD)
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1769: Symposium 6E – Materials for Nuclear Applications , 2015 , IMRC 2014 6E-22
Copyright
Copyright © Materials Research Society 2015 

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References

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