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Título

Gamma radiation-induced thermoluminescence emission of minerals adhered to Mexican sesame seeds

Autor Rodríguez Lazcano, Yamilet; Correcher, Virgilio; García-Guinea, Javier ; Cruz-Zaragoza, E.
Palabras clave Thermoluminescence
Feldspar
Sesame
Quartz
Detection of irradiated food
Fecha de publicación 2013
EditorPergamon Press
Citación Radiation Physics and Chemistry 83: 15- 18 (2013)
ResumenThe thermoluminescence (TL) emission of minerals isolated from Mexican sesame seeds appear as a good tool to discern between irradiated and non-irradiated samples. According to the X-ray diffraction (XRD) and environmental scanning electron microscope (ESEM) data, the adhered dust in both samples is mainly composed of different amounts of quartz and feldspars. These mineral phases exhibit (i) enough sensitivity to ionizing radiation inducing good TL intensity, (ii) high stability of the TL signal during the storage of the material, i.e. low fading, and (iii) are thermally and chemically stable. Blind tests were performed under laboratory conditions, but simulating industrial preservation processes, allow us to distinguish between 1. kGy gamma-irradiated and non-irradiated samples even 15 months after irradiation processing followed the EN 1788 European Standard protocol in sesame samples. © 2012 Elsevier Ltd.
URI http://hdl.handle.net/10261/103779
DOI10.1016/j.radphyschem.2012.09.017
Identificadoresdoi: 10.1016/j.radphyschem.2012.09.017
issn: 0969-806X
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