Fast Fission

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:

    Time flies like an arrow; the days and nights alternate as fast as a weaver’s shuttle.
    Chinese proverb.

    The pace of science forces the pace of technique. Theoretical physics forces atomic energy on us; the successful production of the fission bomb forces upon us the manufacture of the hydrogen bomb. We do not choose our problems, we do not choose our products; we are pushed, we are forced—by what? By a system which has no purpose and goal transcending it, and which makes man its appendix.
    Erich Fromm (1900–1980)