cobalt-60


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cobalt-60

A radioactive isotope of cobalt, having a half-life of 5.27 years. It formerly served as a source of beta and gamma rays in radiation units used to treat malignancies. Modern radiation units have replaced cobalt-60 by higher-energy sources, e.g., linear accelerators.
References in periodicals archive ?
The intellectual property that Nordion has acquired enables Cobalt-60 to be made in Pressurized Water Reactors (PWRs) and Boiling Water Reactors (BWRs), which represent the majority of the world's 400 nuclear reactors and the 100 reactors in the United States.
Cobalt-60 is employed as a gamma ray source as it can be produced in a predictable measure and high activity by bombarding cobalt-59 with neutrons.
The pencils were developed for blood irradiation but are expected to replace cobalt-60 for applications such as food irradiation, brachytherapy and sterilization of medical equipment.
The cobalt-60 that was missing for nearly two days was left in a rural area about a kilometer (about a half-mile) from Hueypoxtla, a farm town of about 4,000 people.
The truck was transporting the cobalt-60 from a hospital in the northern city of Tijuana to a radioactive waste storage center, and was stolen in Tepojaco, central Mexico's Hidalgo State, Mexican authorities said in a report sent to the Vienna-based International Atomic Energy Agency (IAEA), which announced the theft earlier Wednesday.
Luan, senior scientist and manager of radiation protection, Nuclear Science and Technology Association (NuSTA); consultant to NBC Society; former manager, Radioactive Waste Management Plant; and manager, Cobalt-60 Irradiation Plant of INER, AEC;
Cobalt-60 from a medical device, improperly disposed in Saudi Arabia and loaded with scrap metal bound for Italy, exposes the challenges of inspecting cargo containers
The International Atomic Energy Agency said in a statement that a plane carrying 36 Cobalt-60 sources -- each one radioactive enough to kill a person within minutes -- arrived in Russia from Lebanon on August 30.
Personally, I have no fear of nuclear power stations, after all cobalt-60, a radioactive isotope, is used in the treatment of cancer.
To determine the tolerance doses of cutaneous and mucosal tissues of normal birds in order to provide more effective radiation treatment for tumors that have been shown to be radiation responsive in other species, ingluvial mucosa and the skin over the ingluvies of 9 ring-necked parakeets (Psittacula krameri) were irradiated in 4-Gy fractions to a total dose of either 48, 60, or 72 Gy using an isocentric cobalt-60 teletherapy unit.
Samples were irradiated at absorbed dosages of 0, 5, and 10 kGy in a cobalt-60 source irradiator at about 18 C.
Cobalt-60 is used all over the world for medical and engineering purposes.