FOOTNOTES
[1]For more information about these devices, see Accelerators, a companion booklet in this Understanding the Atom series.
[2]For more information, see Synthetic Transuranium Elements, another booklet in this series.
[3]The designation ²³⁵U is a new format, now in international usage, for the more familiar style, U²³⁵, to designate isotopes.
[4]For more about plutonium, see Plutonium, a companion booklet in this series.
[5]For more information on reactors, see Nuclear Reactors, another booklet in this series.