Abstract
The possibility of preparation of237U by the238U(γ, n)237U reaction, realized by irradiation of UO3 on the microtron, has been verified. The relation between yields for (γ, n) and (γ, f) reaction was determined. The activated uranium was separated from fission products by extraction into diethyl ether.237U was used for the study of the kinetics of heterogeneous isotope exchange in the system aqueous solution of UO2(NO3)2 — ion exchanger Wofatit CA-20 in UO22+ form. The experimental results were evaluated by a model based on particle diffusion with simultaneous isotope exchange between two uranium forms in the ion exchanger.
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