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Why Choose Tungsten Heavy Alloy Anti-radiation Shielding

Views: 12     Author: Site Editor     Publish Time: 2020-04-07      Origin: Site

Tungsten alloys are widely used as shields in industry, nuclear energy, and medical fields. Due to its high density and large atomic number, tungsten alloy is the best material for shielding, which can shield gamma rays and X-rays. Lead and boron carbide can also be used as a shield, but the shielding effect is not as good as tungsten alloy.

Because tungsten alloy combines high density (density is 60% higher than lead), machinability, good corrosion resistance and high radiation absorption capacity (better than lead and steel), high strength, tungsten alloy is a tungsten alloy radiation protection container The best raw materials. Reducing the volume and thickness of the shield and the container, the shielding ability of the tungsten alloy shield is still comparable to lead. In addition, compared with lead and depleted uranium, tungsten alloy is a non-toxic and non-polluting material, which is more easily accepted by people.


Why use tungsten alloy shields?

Compared with traditional shielding materials, such as lead and boron carbide, the shields of the same weight have a smaller volume and the density of tungsten alloy shields is higher. Compared with lead shields of the same weight, the volume of tungsten alloy shields is only 1/3 of lead, but the high density makes it have the same radiation absorption capacity as lead. After the weight is determined, the density is higher, but the thickness of the tungsten alloy is thinner. Due to the high density of tungsten alloy, the thickness of the tungsten alloy radiation protection container is thinner, but the radiation absorption capacity is higher. This is why tungsten alloy becomes the best raw material for tungsten alloy anti-radiation container.


Formula: K = e0.693 d / △ 1/2

K: total weakening factor of the shielding layer

△ 1/2: half-value layer value of the shielding material

d: The thickness of the shielding layer, whose unit is the same as the thickness of the half-value layer. When the mass thickness of the half-value layer needs to be converted into the thickness of the material, it can be obtained by dividing by the density of the material.


One of the main uses of tungsten alloy products is as a tungsten alloy radiation container for medical and nuclear industries.


Due to the excellent radiation shielding capability of tungsten alloys, tungsten alloys are gradually replacing lead as a raw material for shields and used to shield radiation.


The tungsten alloy anti-radiation container is a tungsten alloy shield with high temperature resistance and strong applicability. Lead has been used as a raw material for shielding for a long time, but the shielding effect of lead is still not as good as tungsten alloy. Tungsten alloy shields are preferred. Due to its high density and small size, the shielding effect of the new generation of tungsten alloy shields is twice that of lead, which can greatly weaken the radiation level.


The tungsten alloy anti-radiation container can be designed into various shapes and has a strong applicability. The shielded radiation amount is increased from 5ram per person to 10ram per person per year. The shielding is much better than the same weight of lead. In addition, the weight of the tungsten alloy shield is only 25% to 50% of lead, and lead is toxic, and a considerable part of the material is discarded during processing.

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