Surface irradiation installation based on URT-0.5M accelerator

Abstract

It was developed the surface irradiation installation based on the URT-0.5M accelerator (~0.45 MeV, 1 kW). It includes built-in radiation protection and a radiation-resistant conveyor of products under the beam. The circuit of high voltage pulse generation is located in the oil-filled tank of the accelerator, which has detachable side covers for easy installation and maintenance. For double-sided irradiation with a beam diameter of ~100 mm is used a vacuum diode. The pulse transformer core is made of 1V-M magnetic conductors. Tests of the installation showed the sufficiency of the resulting doses of the electron beam for surface disinfection of eggs (~12 kGy) simultaneously on both sides at a rate of movement of egg cassettes of 3.1 cm/s. It provides a productivity of up to 5400 eggs/hour. The designed protection provides the required level of safety, as the dosimetry showed.