Radiation dose simulation for high-current repetitively pulsed electron accelerator

In this study, the Geant4 Monte Carlo toolkit was used to simulate radiation doses for a high-current repetitively pulsed electron accelerator. We have created a model that allows us to predict the distribution of radiation doses around an operating accelerator. The materials and geometry of the accelerator were in accordance with the design documentation. The values of radiation doses were obtained for different initial parameters of the electron beam. The values obtained are compared with the measurement results. Application of the developed model will make it possible to predict the distribution of the radiation dose around the accelerator. Note that the developed model is sensitive to the initial parameters of the electrons. This opens up a wide field of activity for studying the radiation effects around an operating accelerator, depending on the magnetic field of the solenoid, the cathode type, collector materials and slow wave structure. In the future it is planned to conduct a detailed study of the dependence of radiation doses on the geometry and composition of the collector, where most of the accelerated electrons are utilised. These studies will help to significantly reduce the radiation doses around the working accelerator.