Radium (Ra) was found by a French scientist named Marie Skłodowska-Curie and her husband from uraninite, it is a byproduct of the uranium production. The followed studies have shown that the radiation of the radium element can effectively inhibit the cells that sires fast. Radium, although is not the first radioactive element to be discovered, but it is the most important element in the rising modern nuclear industries, and can be widely used in scientific research, industrial, medical and other fields.

 

The application of radium in the medical treatment is to treat cancer, it is a topical treatment for cancer therapy of using radiation radiotherapeutic. Radiation includes the radioisotopes,which  produced α, β, γ-rays and the X-rays, electron beams, proton beams, and other particle beams produced by the various types of x-ray machine or accelerator. Due to the strong radioactivity of radium, which will release  two kinds rays of α ray and γ ray during the decay. And these two rays can destroy the cancer cells or other harmful cells in vivo, therefore to be well applied to the medical field. The strong radiation therapy brings the good therapeutic effect, while it also brings the additional harm --- radiation. The studies show that it may induce many diseases or adverse reactions under the laser radiation for a long time, such as dizziness, nausea, alopcia and other symptoms, if serious, it may induce bone cancer.

 

As we all know, high density is the most important performance of the materials for preparing shielding materials, as an high density element, although tungsten is not the highest density element in the world, but it is the most suitable material for the production of the shielding. Early in the 1930s, tungsten alloy had been successfully developed and applied in preparing radiation shielding materials. Thus, the tungsten alloy shielding materials apply in the radium therapy can well make up its shortcomings and make the treatment become a real treatments.