Transcription of 天然ウランの生産地、U235の濃縮過程とPu239の生産過程
1 U235 Pu239 . uranium production, enrichiment process of U235 and production of Pu239. 9. Ukraine 10. China U235 U235 U235. 8. USA 850t 827t etc 235 235 235. 2,177t 3 5% 80 90%. 1,660t 7. Uzbekistan 2,400t 1. Kazakhstan 3,562t 6. Russia . 17,803t 5. Niger 4,198t enrichment enrichment 4. Namibia 2. Canada U238 U238 U238. 238 238 238. 4,496t 3. Australia 9,783t % 95 97 % 10 20%. 5,900t ( U234 ) ) <20% ) >80%. (2010) reactor-grade weapons-grade uranium production natural uranium enriched uranium enriched uranium 53,663 tons (U235, Pu239, Pu241.
2 Enrichment U235 . bi-product . 235.. U235. 235. U235 . 235. 3 5% .. ( ). Pu239 Pu239. 239. 239. reprocessing U238 U238. 238 238. % 95 97 % Pu240-242. < U238 + n U239 Np239 Pu239 (Pu239 >93%). depleted uranium (1943) weapons-grade ( ) plutonium . ( ). + . add turbine Pu239 (& Pu241). 239 (& 241). 5 7 %.. ( ). (1956). ( 63 ). reprocessing Pu .. U238. 238 ( ). 1% .. Pu 1 . Pu239 . MOX . mixed-oxide fuel.
