TeachMeFinance.com - explain Enrichment tails assay
Enrichment tails assay The term 'Enrichment tails assay' as it applies to the area of energy can be defined as ' A measure of the amount of fissile uranium (U-235) remaining in the waste stream from the uranium enrichment process. The natural uranium 'feed' that enters the enrichment process generally contains 0.711 percent (by weight) U-235. The 'product stream' contains enriched uranium (more than 0.711 percentU-235) and the 'waste' or 'tails' stream contains depleted uranium (less than 0.711 percent U-235). At the historical enrichment tails assay of 0.2 percent, the waste stream would contain 0.2 percent U-235. A higher enrichment tails assay requires more uranium feed (thus permitting natural uranium stockpiles to be decreased), while increasing the output of enriched material for the same energy expenditure'.
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