The efforts to change the bleak image of the atom bomb galvanised the discourse
on the peaceful applications of nuclear energy. This contributed to a utopian vision of nuclear
energy, especially of the uses of radioactive isotopes in the immediate post-war period. Desire
for peace engendered dreams of a better future based on the use of radioactivity. These dreams
were first converted into reality using isotopes in medicine. These advances were subsequently
applied to industry and agriculture. This article gives an overview of the peaceful applications
of isotopes in industry and agriculture in Spain. It describes a period in which the initial dreams,
sometimes fantastic and other times down-to-earth, gave rise to the first applications to meet
the needs of economic growth in the 1960s