A practical and transferable methodology for dose estimation in irradiated spices, based on thermoluminescence dosimetry

Absorbed‐dose estimation and quality attributes of gamma‐irradiated fresh shiitake mushrooms

“…In ABD3, saturation was observed, especially for the sample irradiated with an original dose of 3 kGy where a polynomial expression could also not solve this problem. The saturation effect during the calculation of absorbed dose was also reported by D'Oca et al Previously, excellent results were reported for the irradiated oregano samples using the ABD1 . However, contradictory results were found for the fresh mushrooms, which might be because of the difference in mineral composition.…”

“…However, for quantitative identification results, a different approach from the ESR method is needed as TL analysis eliminates radiation‐induced luminescence signals (destructive technique) and the TL response is highly dependent upon mineral contamination (greatly variable) rather than the food matrix . Different approaches reported by D'Oca et al , were adopted with slight modifications and compared to estimate the original absorbed dose for the irradiated fresh mushrooms. Best‐dose estimation results were obtained by the ABD2 (Table ) where a linear fit was most appropriate, as no saturation was observed.…”

Thermoluminescence study of polyminerals extracted from clove and marjoram for detection purposes

“…This is a good result for dose estimation because the very good reproducibility of the signal after successive irradiation-readout cycles does not affect the obtained dose values. In other works, PSD of about 40% and 60% are reported (D'Oca et al, 2010). Furthermore, it seems that the presence of small concentration of the ions elements in the feldspars can improves the linearity and reproducibility of the TL signal, although more investigations are necessary to confirm the last assertion.…”

“…In all cases and regardless of the storage time it is possible to distinguish between irradiated and not irradiated samples (EN 1788(EN , 2001. Besides a very acceptable estimation of the irradiated dose with a PSDo30% can be obtained (D'Oca et al, 2010). Figs.…”

The identification of irradiated crustaceans and evaluation of the dose by thermoluminescence: Intercomparison between two methods for extracting minerals

“…The weaknesses of the method are: it lasts a few days; the high values of re-irradiation doses can induce saturation behavior and changes in sensitivity. To improve the method, calibration doses lower than 600 Gy have been successfully used (D'Oca et al, 2009b); this method has however the inconvenience that the European Protocol cannot be applied, since the irradiation at 1 kGy is not carried out and the TL Ratio needed for identification cannot be evaluated.…”