With the development of medical science, there is more and more radiation in life. In order to protect patients and other people from the harmful effects of ionizing radiation, we urgently need an excellent radiation-absorbing medium. Studies have found that the use of shields can reduce the amount of radiation. The material of the shield is closely related to the material density. The higher the density, the better the shielding effect. At this stage, high specific gravity tungsten alloy and lead materials are mainly used.
Lead material has been a very commonly used shielding material from the past until now. Although the price is low, the density is high, and the radiation protection level is not bad, it is itself toxic and will cause varying degrees of damage to the human body and the environment.
The density and radiation shielding level of high specific gravity tungsten alloy are not only higher than lead (more than 60% higher than lead density), but also non-polluting, non-toxic, good corrosion resistance, good machinability, high strength, recyclable and The advantage of long service life. Moreover, the volume of tungsten alloy is smaller than that of lead, but the shielding performance is equivalent to that of shielding parts of the same quality, which further reduces the risk of radiation exposure.
