Fast neutrons from one milliampere two hundred ... 239—Editor]) in which activity ascribed to barium was found after neutron bombardment, and that these particles are barium ions of about ...

By bombarding thorium with neutrons, activities are obtained which have been ascribed to radium and actinium isotopes 8. Some of these periods are approximately equal to periods of barium and ...

High-temperature superconducting magnets made from REBCO, an acronym for rare earth barium copper oxide, make it possible to ...

a few of the neutrons bombarding the uranium nucleus should cause it to fission and the telltale outcome would be a small but measurable amount of the element barium. After an hour, Jim switched ...