Assertion: plutonium | /r/Synonym | reactor-grade plutonium
Facets:
Source sentences:
text: Plutonium containing lower concentrations, in the range of 50-60 % is known as reactor-grade plutonium.
text: In the United States, plutonium containing between 80 and 93 percent plutonium-239 is referred to as "fuel-grade" plutonium, while plutonium with less than 80 percent plutonium-239 -- typical of plutonium in the spent fuel of light-water and CANDU reactors at normal irradiation -- is referred to as "reactor-grade" plutonium.