Separation of Nickel Isotopes during the Filling of a Cascade of Gas Centrifuges with Different Numbers of Stages

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The results of our study of the filling of a cascade of gas centrifuges with different numbers of stages for separation of nickel isotopes used in nuclear physical research and production of radioactive isotopes are presented. During the filling of the cascade, the natural mixture of nickel isotopes is separated, and the isotopes are concentrated in different cascade stages. The concentrations of nickel isotopes in the stages and flows of light and heavy fractions after the filling of the cascade were shown to depend on the number of stages in the cascade.