Abstract
The paper describes the development of the Ion Sputtering – Thermal Separation (IS-TS) technology for closed nuclear fuel cycle and spent nuclear fuel (SNF) reprocessing. The atomization of the SNF pellet is performed by the plasma discharge in an inert gas or hydrogen medium, sputtered SNF atoms in the gas flow move along the separating diffusion tube and deposite separately on selected sections of the tube due to differentiation by saturated vapor temperatures. Based on the numerical calculation of the temperature field and the velocity field of the carrier gas, the values of the thermophysical parameters of the technology are obtained, which make it possible to design a prototype of a diffusion separation system with the optimal mode of sputtering and separate collection of SNF elemental components.
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