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Scientists first created the artificial element neptunium in 1940, around the time they made the first atoms of plutonium. Having demonstrated a technology for extracting actinides from IFR wastes, Chang says, his team must now prove that recycled actinides will fission efficiently Late last month, they launched a two-year experiment to test just that by placing a small quantity of the actinides americium and neptunium into a fuel bundle that they inserted in an IFR-type reactor core. However, his group found that only neptunium dissolved. |
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