Slow Neutrons, on the other hand, can enter nearly all atomic nuclei and induce fission of certain of the heavier ones.
"A Brief History of Element Discovery, Synthesis, and Analysis"
Glen W. Watson
"Heave some Neutrons into it.
"Rip Foster in Ride the Gray Planet"
Harold Leland Goodwin
The reaction had shorn some elements of their electrons and left a thin coating of material composed almost entirely of Neutrons.
"Rip Foster in Ride the Gray Planet"
Harold Leland Goodwin