Layer thickness evaluation for transuranic transmutation in a fusion-fission system

作者：Velasquez Carlos E; Pereira Claubia^*; Veloso Maria Auxiliadora F; Costa Antonella L

来源：Nuclear Engineering and Design, 2015, 286: 94-103.

DOI：10.1016/j.nucengdes.2015.01.022

Layer thickness for transuranic transmutation in a fusion fission system was evaluated using two different ways. In the first one, transmutation layer thicknesses were designed maintaining the fuel rod radius constant; in the second part, while the transmutation layer thickness increases, the fuel rod radius decreases maintaining k(s) (source-multiplication factor) approximate to 0.95. Spent fuel reprocessed by UREX+ method and then spiked with thorium and uranium composes the transmutation layer. The calculations were performed using MONTEBURNS code (MCNP5 and ORIGEN 2.1). The results indicate the best thickness and the volume ratio between the coolant and the fuel composition to induce transmutation.

• 出版日期2015-5