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How does the lead plate play a role in radiation protection

2021-04-27

How does the lead plate play a role in radiation protection

The primary component of the lead plate is lead, lead is a relatively important heavy metal, with many characteristics, which is more important is its density is relatively large, hardness and various anti-corrosion and anti-wear functions are relatively high. Has a relatively large quality and density, mainly used for the production of lead batteries, in the acid industry and metallurgical industry with lead plate, lead pipe for fabric maintenance equipment, electrical industry, lead used as cable sheath and fuse. Lead alloys containing tin and antimony are used for printing movable type, lead-tin alloys are used for making fusible lead electrodes, and lead plates and lead-plated steel plates are used in the construction industry. Lead has good absorption of X-rays and gamma rays and is widely used as maintenance data for X-ray machines and atomic energy equipment. Because of lead toxicity and economic reasons, lead in some areas has been or will be replaced by other information. One of the more important is used in the field of radiation protection. Let's understand how the lead plate plays a radiation protection effect:
Obviously, the higher the material density, the stronger the obstruction. As for the atomic number, generally the higher the atomic number, the stronger the frustrating ability. Gamma rays into the material, the general first attack photoelectric effect, Compton effect. The probability of the onset of the two effects is related to the atomic number of the obstructing substance. The higher the atomic number, the greater the probability of the effect. The atomic number of lead is 82. In addition to the above two elements, the lead plate is also related to the energy of the gamma ray itself. The higher the energy, the smaller the probability of the photoelectric effect and the Compton effect. The more penetrating the gamma rays are. Equivalent to the material obstruction can be weaker.
The atomic number of lead is 82, which is a substance with a relatively high atomic number in nature. Of course, the ability to block nuclear radiation is stronger. A substance that is higher than lead will be stronger. But unfortunately, these substances are rare substances on the earth, and the cost is relatively expensive (such as gold with atomic number 79 and bismuth with atomic number 83). What's more, these substances are generally radioactive. Of course, it would be better to use lead to block nuclear radiation protection.
From the above, it can be seen that the primary radiation protection function of the lead plate is superior. Through many rays and many radioactive gases, it has a relatively strong resistance effect, especially in hospitals, offices, railway stations, bus stations, campuses and other places, lead plates are used as an important method to resist radiation corrosion.