放射性沾染是核爆炸所致的四种杀伤因素之一。它与瞬时杀伤因素(光辐射、冲击波和早期核辐射)相比,具有作用时间长、作用范围广和作用方式多等特点。因此,了解放射性沾染的规律及其对人体伤害的特点,对做好核战争时卫勤保障工作具有重要的意义。一、放射性沾染的来源和性质核爆炸时会产生大量的放射性灰尘。这些灰尘(又称为放射性落下灰)在沉降过程中 Radioactive contamination is one of the four killer factors caused by nuclear explosions. Compared with the instantaneous killer (light radiation, shock wave and early nuclear radiation), it has the characteristics of long acting time, wide range of action and multiple modes of action. Therefore, to understand the law of radioactive contamination and its characteristics of harm to human beings is of great significance to the medical support in doing nuclear war. First, the source and nature of radioactive contamination Nuclear explosion will produce a lot of radioactive dust. These dusts, also known as radioactive fall ash, are in the process of settling