Indium-111

cyclotron-produced radionuclide with a half-life of 2.8049 days and with &#947;-ray emissions of 171.2 and 245.3 kiloelectron volts

Description
In a chloride form, indium-111 is used as a bone marrow and tumor-localizing tracer; in a chelate form, as a cerebrospinal fluid tracer. It is also used as a white blood cell labeling agent and as an antibody label.