indium 111

indium

 (In) [in´de-um]

a chemical element, atomic number 49, atomic weight 114.82. (See Appendix 6.)

indium 111 an artificial isotope of indium, having a half-life of 2.81 days and emitting gamma rays; it is used as a radioactive tracer in nuclear medicine.

in·di·um 111

(in'dē-um),

A cyclotron-produced radionuclide with a half-life of 2.8049 days and with gamma ray emissions of 171.2 and 245.3 kiloelectron volts. In a chloride form, it 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.

in·di·um 111

(¹¹¹In) (in'dē-um)

A cyclotron-produced radionuclide with a half-life of 2.8049 days and with gamma ray emissions of 171.2 and 245.3 kiloelectron volts.