A metal that, when processed a certain way, gives off ionizing radiation. It is used in food irradiation.
A radioactive form of the metal cobalt, which is used as a source of radiation to treat breast cancer.
A radioactive substance used as a radiation source to treat cancer.
A radioactive isotope used for gamma ray external-beam radiation therapy.
A radioisotope that emits gamma rays that can be used to sterilize medical products, enhance industrial materials, and pasteurize foods.
a radioactive isotope of cobalt having a mass number of 60 and a half-life of 5.2 years. Cobalt 60 is a nuclear waste product that generates gamma rays and is the leading nuclear source of radiation for food.