Most radionuclides used in radionuclide therapy emit beta particles which have a low range of tissue penetration. A few emit auger electrons and alpha particles, and several also emit gamma rays and X ...

Iodine-131 Used to treat thyroid ... Carbon-14 decays by beta-emission and has a half-life of 5730 years. This means that the beta-decay emissions can be monitored and the data used to calculate ...