방사능폭탄

방사능폭탄은 dirty bomb 이라고도 불리며 다이너마트 같은 폭발물로 방사능물질을 확산시키는 장치이다.

공포

방사능폭탄은 RDD(Radiological dispersal device, 방사능확산장지)라고도 불리운다. 대부분의 RDD는 사상자를 내거나 병증을 유발하기에는 출분하지 못하다. 일반적인 폭탄의 살상력이 터둘크다. 그러나, RDD는 공포를 야기하는 데 효과적이고 청소에 많은 비용이 들어간다. 즉각적이고 정확한 정보를 대중에게 알리는 것이 테러리스트에 의한 공포확산을 방지하는 방법이다.

효과

A dirty bomb is in no way similar to a nuclear weapon or nuclear bomb. A nuclear bomb creates an explosion that is millions of times more powerful than that of a dirty bomb. The cloud of radiation from a nuclear bomb could spread tens to hundreds of square miles, whereas a dirty bomb's radiation could be dispersed within a few blocks or miles of the explosion. A dirty bomb is not a "Weapon of Mass Destruction" but a "Weapon of Mass Disruption," where contamination and anxiety are the terrorists' major objectives.

피해

Impact of a Dirty Bomb The extent of local contamination would depend on a number of factors, including the size of the explosive, the amount and type of radioactive material used, the means of dispersal, and weather conditions. Those closest to the RDD would be the most likely to sustain injuries due to the explosion. As radioactive material spreads, it becomes less concentrated and less harmful. Prompt detection of the type of radioactive material used will greatly assist local authorities in advising the community on protective measures, such as sheltering in place, or quickly leaving the immediate area. Radiation can be readily detected with equipment already carried by many emergency responders. Subsequent decontamination of the affected area may involve considerable time and expense.

Immediate health effects from exposure to the low radiation levels expected from an RDD would likely be minimal. The effects of radiation exposure would be determined by:

• the amount of radiation absorbed by the body;
• the type of radiation (gamma, beta, or alpha);
• the distance from the radiation to an individual;
• the means of exposure-external or internal (absorbed by the skin, inhaled, or ingested); and the length of time exposed.

The health effects of radiation tend to be directly proportional to radiation dose. In other words, the higher the radiation dose, the higher the risk of injury.