| 释义 |
cobalt-60
co·balt-60 (kō′bôlt-sĭk′stē)n. A radioactive isotope of cobalt with mass number 60 and exceptionally intense gamma-ray activity, used in radiotherapy, metallurgy, and materials testing.cobalt-60
cobalt-60[′kō‚bȯlt ′siks·tē] (nuclear physics) A radioisotope of cobalt, symbol 60Co, having a mass number of 60; emits gamma rays and has many medical and industrial uses; the most commonly used isotope for encapsulated radiation sources. cobalt-60
cobalt-60A 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. ThesaurusSeecobalt |