Historians can use accidental neutron activation to authenticate atomic artifacts and materials subjected to neutron fluxes from fission incidents . For example , one of the fairly unique isotopes found in trinitite , and therefore with its absence likely signifying a fake sample of the mineral , is a barium neutron activation product , the barium in the Trinity device coming from the slow explosive lens employed in the device , known as Baratol
Trinity device
Trinity (nuclear test)
Neutron activation