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 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 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 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.

Tungsten alloy shielding part is more suitable for application of medical linear accelerator than lead shielding part to shield X-rays and neutron rays generated during the operation of the accelerator. That is because tungsten alloy is a new type of radiation shielding material with high density and high ray shielding performance. The density of tungsten alloy is 1.5 times that of lead. Also, tungsten alloy is environmentally friendly and pollution-free. While lead does harms to human body and pollutes the environment as it is toxic.

Yellow tungsten oxide nanocomposite film may be a nanocomposite film of polyainline (PANI) and tungsten trioxide (WO3), which may be fabricated by electropolymerization of aniline monomers onto WO3 coated ITO glass slides through spin coating technique and followed by annealing at 500 °C for 2h.

Yellow tungsten oxide nanowires have excellent gas sensitivity so that they are often used to prepare gas sensor. According to the experts, yellow tungsten oxide nanowires and silicon nanowires can be combined to obtain silicon nanowires - tungsten oxide nanowires composite structure, whose interface forms a homogeneous heterojunction. In NO2 gas, the increase of the width of the depletion layer in the heterojunction has an important effect on the improvement of its gas sensing performance.

Yellow tungsten oxide nanowires are considered to be the most promising semiconductor gas-sensing material, which can be used to prepare NO2 gas sensors. As we all know, air pollution is an important aspect of environmental pollution, and NO2 gas in the air will cause serious damage to human body. Therefore, the preparation of a gas sensor that can work at room temperature with low energy consumption and high sensitivity has attracted the attention of many researchers.

Yellow tungsten oxide for smart dimming glass is tungsten trioxide - an electrochromic material that is considered to be one of the most promising smart materials. Among many electrochromic materials, as the most common inorganic cathode electrochromic material, yellow tungsten oxide has the advantages of being cheap, non-toxic and stable with superior performance so that it has received wide attention.

Tungsten oxide nanopowder may be compounded with natural rubber to obtain a gamma ray shielding material with excellent mechanical properties and γ-ray shielding properties. You know, γ-rays have been widely used in nuclear facilities, aerospace, and radiomedicine fields, with short wavelengths and large energy, which have serious harm to the human body. Therefore, the shielding of γ-rays has received much attention. Traditional shielding materials, such as lead-containing plates and glass are heavy with high mobility and low shielding rates, which can no longer meet people's needs. Therefore, it is urgent to develop low-toxic, lightweight and efficient gamma ray shielding materials.