各种放射性同位素在科研、国防、医疗诊断和工农业生产等部门的应用已越来越广泛。在反应堆内照射各种材料的靶件是生产长、短寿命同位素的主要方法。其原理是利用反应堆产生的中子,使与靶核发生核反应,在核反应产物中提取需要的放射性同位素。 A variety of radioactive isotopes in scientific research, defense, medical diagnosis and industrial and agricultural production departments have become more and more widely used. Target irradiation of various materials in the reactor is the main method for producing long and short-lived isotopes. The principle is the use of neutrons produced by the reactor, the nuclear reaction with the target nuclear, nuclear products in the reaction of the required radioisotope extraction.