Fissile material
= Fissile material
{wiki}
Material capable of sustaining a <nuclear chain reaction> with slow neutrons in a suitable configuration. Fissility involves capture and fission probabilities, neutron production and losses, rather than positive fission <Q value> alone. <Uranium-235> and <plutonium-239> are common examples; fissile is more specific than fissionable by sufficiently energetic neutrons.