the most fissionable material
the basic fuel for nuclear paints
basic raw material for nuclear plants
the material which absorbs neutrons and undergoes spontaneous changes leading to the formation of fissionable material
%age of U235 has been artificially increased
%age of U has been artificially increased
%age of U234 has been artificially increased
extra energy is pumped from outside
nucleus
electron
proton
meson
neutron
atom
moderator is dispensed with.
graphite is used as the moderator
heavy water is used as the moderator
moderator may or may not be used