EPR dosimetric properties of radiation--formed radicals in arginine monohydrochloride.

Arginine monohydrochloride rods (3×10 mm) were irradiated with (60)Co γ-rays to study radicals for dosimetric materials with Electron Paramagnetic Resonance (EPR). The rods have significant signal which develops upon irradiation and the intensity of signal increases upon the increase in irradiation dose. The rods can be used in the dose range from 5 to 120 KGy. The temperature coefficient was found to equal +0.22% °C(-1). The dose response, influence of humidity and post-irradiation storage at different conditions are discussed. The overall uncertainty for calibration of arginine monohydrochloride rode dosimeters at 2σ was found to be 2.85%. Crown