Its range is 0 to 600 roentgens. 112.3 List the 4 types of chemical casualty agents and their physical symptoms. One in which the point of detonation is at an altitude in excess of 100,000 feet. Above this level, air density is so low that interaction of the weapon energy with the surroundings is markedly different from that at lower altitudes and varies with the altitude. High-altitude nuclear explosions create spectacular visible effects that can be seen both locally and at great distances.
Air burst Immediately after a nuclear explosion, a huge, intensely hot fireball is formed.
An airburst is one in which the fireball does not touch the earth's surface. All materials within the fireball are vaporized. As the fireball rises, it cools to the point where the vapor condenses to form a highly radioactive cloud. At sufficiently low altitudes, the rising fireball creates strong circulating winds that suck up dust and other debris from the surface. This debris combines with the condensed vapor to form the familiar mushroom-shaped cloud.