Radiation therapy is an advanced treatment method, which can cure many diseases, and plays a more and more important role in the treatment of cancer.

Radiation is a local method for the treatment of tumor. Radioactive rays include alpha, beta, gamma rays produced by radioisotopes, or X rays, electron beams, proton beams, and other particle beams produced by accelerators. However, radiation therapy will cause toxic side effects, such as radiation dermatitis, esophagitis, and anorexia, nausea, vomiting, abdominal pain, diarrhea, etc. Therefore, when using radioactive materials, it’s necessary to use medical radiation shielding facilities.

 

In the course of the treatment, tungsten alloy shielding wall can shield the radiation effects of the control area and non-control area to ensure the health of radiation workers and to reduce the level of occupational external irradiation dose. Tungsten alloy is the top choice for shielding wall materials in radiation therapeutic room,for its good shielding against X rays and gamma rays.

 

 

The principle of shielding is that the intensity of radiation will be weakened by shielding material and when it penetrates the substance. Put a shield that thick enough  between the radiation source and the people can reduce the radiation levels to ensure personal safety. Shielding key point is that radiation shielding material that can effectively absorb the radiation should be placed between the X-ray source and people. Tungsten alloy shielding walls are provided between the computer room and the control room during the CT scan to block the radiation.

 

Compared to traditional radiation shielding materials, such as lead and boron carbide, tungsten alloy has high density but small volume. Besides, tungsten alloy shielding wall can provide the same radiation absorption ability as lead with 1/3 space of lead when they are the same weight. Tungsten alloy shielding wall could be made with thinner thickness for the high density of tungsten alloy. As tungsten alloy shielding materials are environmental friendly, they are widely used in nuclear medicine as radiation shielding materials for radiotherapy, cancer, medical radiography and radioactive tracer.