(alpha, beta, gamma).
(2) normal cells are damaged, so that people with nuclear lesions are exposed to radiation hazards, such as dizziness, fatigue, alopecia, erythema, leukopenia or increase, and thrombocytopenia; However, high-dose radiation can also cause leukemia, bone cancer, lung cancer and thyroid cancer and even death. Radioactivity can also cause gene mutation and chromosome aberration. Different rays do different harm to people. For example, the radioactive substance of σ- 1 particle will cause deep radioactive damage to the tissues it contacts; And-rays are mainly caused by external radiation; The penetration ability of β -rays is between the two, which can not only cause external radiation burns and skin deterioration, but also cause internal radiation damage through external tissues.