EPR study of irradiated bovine bone: application to radiation dosimetry

Document Type

Article

Publication Date

Summer 5-26-2025

Abstract

In the current work, the concentration of the radiation-induced free radicals in the gamma-irradiated bovine bone has been detected by EPR spectroscopy. The studied bovine bone was extracted from a bovine tibia, which was purchased from the local market. Response to ionizing radiation doses was fitted according to a polynomial function over the dose range 0.5–10 kGy. The temporal stability of these radiation-induced free radicals has been examined. Although the radiation-induced radicals are persistent for long periods, variations in the estimated irradiation doses may reach 1.7%. The first 90 minutes after irradiation show significant variation within ±2.2%, and stabilization thereafter is observed over the subsequent 2- hour range. The obtained results indicate that gamma-irradiated bovine bone can be identified accurately using EPR spectroscopic techniques.

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