The invention relates to a method for producing a radioactive
brachytherapy source material comprising indium-114m in radioactive
equilibrium with indium-114 as main radioactive isotopes. A new
radioactive brachytherapy source material comprises indium-114m in
radioactive equilibrium with indium-114 as main radioactive isotopes. A
new encapsulated radioactive brachytherapy source comprises the new
radioactive brachytherapy source material.