Food irradiation

To detect if food was exposed to ionising radiation

Food irradiation

ESR signal of unirradiated and irradiated chicken bone (courtesy Kuntz, Arahouni, Werner – Aérial)

Food stuff often is irradiated with ionizing radiation for sterilisation purposes. This requires the detection and estimates of the applied doses. The attached mineral dust or the food itself serves as dosimeter.

  • TL/OSL to detect irradiation of e.g. spicest

  • ESR to detect irradiation of e.g. bones

  • Presence/absence of signal specific features shows the irradiation

  • Dose estimates are possible for some materials

Jo, Y., Sanyal, B., Chung, N., Lee, H.-G., Park, Y., Park, H.-J., and Kwon, J.-H. (2015). Calibrated photostimulated luminescence is an effective approach to identify irradiated orange during storage. Radiation Physics and Chemistry 111, 81-86.