Sentences with phrase «neptunium in»

Not exact matches

A global team led by University of Edinburgh chemists made a series of metallo - carbon neptunium compounds and carried out in - depth analyses to determine their molecular and electronic structures.

[2] Minor actinides (MAs): Elements synthesized in nuclear fuel other than uranium and plutonium, such as neptunium, americium and curium.

In addition, an assembly carrying neptunium will be placed at the edge of the core to be transmuted by the fission reaction.

The gas - phase results are consistent with the spontaneous hydrolysis of PaO2 + in aqueous solution, this in contrast to heavier actinide dioxides of uranium, neptunium, and plutonium; the heavier actinide dioxides form stable hydrates in both solution and gas phase.

Chemical isolation of naturally occurring technetium, promethium, actinium, protactinium, neptunium, or americium would indicate the presence of superheavy particles in the forms RuX — , SmX — , 232ThX — , 235,236,238 UX — , 244PuX — , or 247CmX — .

Poneman said Monju came up in the discussions because of the possibility of using fast reactors to burn plutonium and the long - lived isotopes of elements such as neptunium and americium that account for much of the radiotoxicity of nuclear waste.

An optimized closed (fast - reactor) fuel cycle would recycle not just the uranium and plutonium but all actinides in the fuel, including neptunium, americium and curium.

In a once - through fuel cycle, more than 98 percent of the expected long - term radiotoxicity is caused by the resulting neptunium 237 and plutonium 242 (with half - lives of 2.14 million and 387,000 years, respectively).