Tungsten alloy is a non-toxic and environmentally-friendly alloy material. As a new radiation shielding material, tungsten alloy has a better shielding effect than the traditional radiation shielding material heavy metal lead. Research shows that for gamma rays of the same energy, the shielding effect of the new radiation shielding material tungsten alloy is far better than that of lead, which provides a reference for choosing tungsten alloy as a shielding material in special occasions, and provides a new choice in the selection of shielding materials in the field of radiation protection.

Many medical devices use gamma rays to treat tumors. In order to perform accurate radiotherapy and reduce the damage of radiation to patients, gamma ray shielding materials are necessary. Tungsten alloy such as W90Ni10 alloy is a kind of γ-ray shielding material with good absorption to gamma rays.

As a new radiation shielding material, environmentally-friendly and pollution-free tungsten alloy gamma ray shielding material is expected to replace toxic heavy metal lead for the manufacture of medical shields. It is reported that the greater the density, the stronger the ability to attenuate the rays. So, what is the density of a tungsten alloy gamma ray shielding material W94Ni6 alloy prepared by laser rapid prototyping?

Tungsten carbide reinforced aluminum matrix composite material is a new radiation protection material. Its γ-ray and neutron shielding performance is more excellent than lead. It also has the advantages of high specific stiffness, high specific strength, excellent plasticity, and high stability. More importantly, it is environmentally friendly. So, this new type of radiation protection material is widely used in medical shielding and other fields.

Non-toxic and environmentally-friendly tungsten heavy alloy is an ideal anti-radiation material for applying in the field of medical shielding. Tungsten heavy alloy is a ternary alloy composed of 90-98% W and a small amount of Ni, Fe or Cu. There are mainly two series of tungsten heavy alloys including W-Ni-Fe alloy and W-Ni-Cu alloy.

As a ray shielding material, tungsten-based composite material does not have the disadvantages of secondary toughening radiation, low hardness, and toxicity that exist in lead alloys and lead-containing glasses. Therefore, tungsten-based composite material is regarded as a potential substitute for lead to be used in medical shielding.

Tungsten alloy leaf can be applied to multileaf collimator - an important part of medical linear accelerator. And there are many tungsten alloy leaves arranged closely to replace a whole lead block on the head of accelerator. The distance between each tungsten alloy leaf is very small. If dust particles or other dirty things settle on tungsten alloy leaves, it will cause the multileaf collimator to malfunction, so these leaves should be cleaned. Well, how to clean tungsten alloy leaf of multileaf collimator?

Tungsten trioxide is an important electrochemical material for saving energy and protecting environment. You know, many people are becoming aware of the importance of renewable energy resources with the growth of world population and the subsequent growth of demands for energy. While the uncontrollable and periodic nature of these energy resources has intensified the need for an efficient energy savers system.

Tungsten trioxide is a new type of electrochromic material that is able to reversibly and persistently change its optical properties at an external voltage. Tungsten trioxide is considered as one of the most promising candidates for fabricating energy-saving smart window.

It has been reported that some experts fabricated nanocrystalline tungsten oxide based NO2 sensor by thin film microfabrication technique. And the sensitivity of this NO2 sensor was at parts per billion (ppb) level.