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.

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.

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 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.