Fast fission is fission that occurs when a heavy atom absorbs a high-energy neutron, called a fast neutron, and splits. Most fissionable materials need thermal neutrons, which move slower.
Read more about Fast Fission: Fast Reactors Vs. Thermal Reactors, Fissionable But Not Fissile, Differences in Fission Product Yield
Famous quotes containing the words fast and/or fission:
“Although knaves win in every political struggle, although society seems to be delivered over from the hands of one set of criminals into the hands of another set of criminals, as fast as the government is changed, and the march of civilization is a train of felonies, yet, general ends are somehow answered.”
—Ralph Waldo Emerson (1803–1882)
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