The thermoluminescence properties of the inorganic dust extracted from the Chile Guajillo (paprika) Mexicano, were studied in order to verify the possibility of using the TL technique to discriminate between irradiated and non irradiated peppers. The inorganic dust was found to consist of quartz 60%, albite (NaAlSi(3)O(8)) 30%, and ortose (KAlSi(3)O(8)) 10%. Its thermoluminescence dose response covers the wide dose range of 1 Gy--10 kGy, which was attributed mainly to feldspars. Its high sensitivity and its stability over 10 irradiation-readout cycles allow the application of a single grain--single aliquot regeneration dosimetry in Chile Guajillo (paprika). Evaluations based on trapping parameters show that thermal fading at room temperature for glow-peaks above 180 degrees C, is not a problem in the dosimetry of paprika.
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During the 2005 growing season, widespread virus-like symptoms were observed in pepper (Capsicum annuum) fields in north-central Mexico. Early in the season, plants were chlorotic and stunted with thickened, elongated leaves. From mid to late season, the affected plants showed severe yellowing, upwardly rolled, small leaves, and a few deformed fruits.
View Article and Find Full Text PDFThermoluminescence properties of Chile Guajillo paprika Mexicano.
Appl Radiat Isot
August 2005
Nuclear Physics Laboratory, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece.
The thermoluminescence properties of the inorganic dust extracted from the Chile Guajillo (paprika) Mexicano, were studied in order to verify the possibility of using the TL technique to discriminate between irradiated and non irradiated peppers. The inorganic dust was found to consist of quartz 60%, albite (NaAlSi(3)O(8)) 30%, and ortose (KAlSi(3)O(8)) 10%. Its thermoluminescence dose response covers the wide dose range of 1 Gy--10 kGy, which was attributed mainly to feldspars.
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