Nuclear radiation is harmful to many creatures, so that it’s necessary to have nuclear radiation shields. Here we mainly talk about Tungsten nuclear radiation shield.

Tungsten nuclear radiation shield is a kind of radioactive shielding device. Radioactive substances would cause a certain degree of damage to the human body. Besides away from the radioactive material, put shielding devices is also an effective way to prevent radiation.

 

In the nuclear leakage and decommissioning nuclear facilities operations, the main nuclear radiations caused are X-ray, γ-ray and neutron beam irradiation, which needs higher requirements to deal with the safe handling of shielding materials. Heavy metals like tungsten and iron can weaken γ-ray effectively, and they have a good slow effect on fast neutrons. High-density tungsten-nickel-iron W-Ni-Fe alloy is widely used in shielding materials for its strong ability of anti-X-ray and anti-γ-ray.

 

 

There’s a close relationship between radiation resistance and material density. The higher the density is, the better the shielding performance is. Tungsten alloy has a high density, so it has good shielding performance. High-density tungsten-nickel-iron W-Ni-Fe alloy shielding effect of high-energy radiation is 1.5 times that of lead, better than steel and cement, and in achieving the same shielding effect of the required material, its thickness is the smallest, which is important for high-energy radiation shielding structures that require  compact space. In addition, the weight of the tungsten shield is 25 to 50 percent less than that of the lead. And it eliminates the associated toxic hazards and reducing the cost of the mixed waste treatment. The equivalent amount of tungsten alloy shield and lead shield, the former provides a lower risk.

 

In addition to high density, the W-Ni-Fe alloy has good strength and toughness, and it is very suitable for the tungsten nuclear radiation shielding material. The tungsten heavy alloy strengthened by hydrostatic extrusion deformation, hardness distribution and microstructure are more uniform better performance. It can make the shield not easy to wear, so that extends years of use.