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Radiation detector: master these four, successfully avoid radiation damage
2024-10-12
Many years ago, people were afraid to go to the hospital to see a doctor, especially for radiation.CT,X-ray, MRI and so on, every time before doing it, they would ask several times: "Doctor, is there any radiation in doing this? Does it have a big impact on the body?" Over time, when talking about nuclear discoloration, they did not dare to do anything about nuclear detection.
Nowadays, everyone is still afraid to avoid radiation, and many people's concerns about nuclear radiation are well documented. At the end of World War II, that is, on August 6, 2945, the US military dropped an atomic bomb over Hiroshima, Japan, causing a large number of civilian and military casualties, and 88000 people were killed in this nuclear explosion. In the future 74, the survivors of that incident can be seen alive like "monsters" in the network. Most of everyone's understanding of radiation still stays on some nuclear accidents in the online media. In fact, in our lives, radiation is everywhere. If there is no radiation, human beings will not be able to survive. Therefore, there is still a deep misunderstanding about radiation. In this regard, Haiyou Environmental Science and Technology is willing to give you some popular science.
First of all, human beings do not receive radiation exposure only after the widespread use of nuclear energy from nuclear radiation. In fact, human beings have always lived in an environment surrounded by radiation. Radioactive substances are everywhere in the water, land, animals, plants and air around us, not to mention household appliances in home life.
What is that againRadiation detection instrumentation? In simple terms, nuclear medicine examination is like the human body to irradiate trace amounts of nuclides, which are detected and imaged by scientific instruments through the rays emitted by the nuclides. Some scientists have found that the radiation rays existing on the earth are still good for human beings. They can constantly stimulate the human body to continuously improve its immunity and resistance. Therefore, as long as it is not excessive, radiation is not terrible.
The nuclear leakage accident of nuclear power plant refers to the leakage of radioactive materials in the nuclear reactor, which causes environmental pollution and makes the public suffer radiation hazards. The longer a person is exposed to radiation, or the closer he is to nuclear material, the greater his risk. Therefore, mastering the knowledge of nuclear irradiation will protect us in case of emergency.
The common effect of nuclear leakage on people is nuclear radiation, also known as radioactive materials. The energy emitted by radioactive materials in the form of waves or particles is called nuclear radiation. Both nuclear explosions and nuclear accidents have nuclear radiation. It has three forms of radiation: a, B and y. A radiation can be blocked with a piece of paper, but the harm of inhalation is great; B radiation is high-speed electrons, skin burns are the key; Y radiation and X-rays are similar, can penetrate the human body and buildings, damage long distances. The universe will naturally produce a large amount of radioactive materials, but the damage is not too great. Only the leakage of radioactive materials from a nuclear explosion or nuclear power plant accident will cause a large number of casualties.
In an emergency, remember the following four points:
2. Time: shorten the time to stay near the radioactive source, can reduce the damage of radiation;
2. Distance: The farther away, the less damage;''
3. Shelter; emergency, to ensure the above two cases, to find a safe shelter;
4. Standing potassium iodide: take potassium iodide as soon as possible to protect the thyroid gland from radiation iodine damage.
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