Calculated Study of Proton Interaction With Foils of the Cyclotron Target Device

The article studies the process of interaction of protons with the foils of the cyclotron target holder. The study was conducted using the SRIM calculation program, in which a three-layer model of the cyclotron target foil holder was created. The target was bombarded with 18 MeV protons at normal incidence, the number of protons was 300102. Nuclear reactions were not taken into account in the calculation. As a result of the conducted studies, it was found that for every 300100 protons that flew through the entire model, there were 2 backscattered protons. The results of the proton distribution along the calculation model and in the cross section at the end of the model are presented. The results of the conducted studies allow us to estimate the spatial and energy distribution of protons in the cyclotron target foil holder, which can be used to optimize the enriched water irradiation process by cyclotron operators. The obtained results can serve as a basis for further research aimed at assessing the fatigue level of target foils and developing recommendations for their replacement frequency during maintenance.