2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/161559A neutron howitzer was used to produce 239Np from the targets of natural U and a hot rock. An intrinsic Germanium detector enabled the observations of the gamma rays in the decay of 239Np and a determination of its half life of 2.3 days. This shows that 239Pu had been produced in both targets4 pages 3 figuresNuclear Experimenttext