It has been reported that the linear accelerator can emit high energy X-rays or electrons to conform to a tumor's shape and destroy cancer cells while sparing surrounding normal tissue. So, tungsten alloy, as a radiation shielding material, is often used to medical linear accelerators to shield the high-energy X-rays generated by the accelerator during clinical radiotherapy treatment.

Tungsten alloy shielding door has many unique excellent properties, such as high density, high strength, good radiation absorption performance, corrosion resistance, easy cutting processing, and environmental protection, etc., so it is suitable for applying to medical electron linear accelerator room to shield the X-rays and neutron rays, which are generated when the accelerator is working.

Tungsten alloy shielding is an advanced radiation protective material with better performance than the traditional lead shielding, so it is promising in applications in radiotherapy treatment room. It has been reported that tungsten alloy is an environmentally friendly material, which is non-toxic and non-polluting. While lead is a toxic heavy metal that will do harm human body and pollute the environment. In addition, tungsten alloy has higher strength and better processing performance than lead.

Tungsten alloy radiation shield is more suitable for shielding X-rays and neutrons generated from the electron linear accelerator than lead radiation shield as tungsten alloy has high density of 16.5-18.75 g/cm3, which is 50% higher than lead. Also, tungsten alloy also has a strong ability to absorb rays, which is 30-40% higher than lead. In addition, tungsten alloy has environmental protection characteristics.