Before revision: This nuclear reaction can be used to construct a neutron source by mixing an alpha-emitting radioisotope such as radium, polonium, or americium with a low-atomic-weight isotope, usually by blending powders of the two materials.
After revision: This nuclear reaction can be used to construct a neutron source by mixing an alpha-emitter such as radium, polonium, or americium with a low-atomic-weight isotope, usually by blending powders of the two materials.