Tungsten Alloy Shielding For Dual-Energy X-Ray Absorptiometry

Dual-energy X-ray absorptiometry is a medical instrumentation of measuring bone mineral density and obtaining relevant data. Two X-ray beams, with different energy levels, are intended to the patient's bones. When soft tissue absorption is subtracted out, the bone mineral density can be determined from the absorption of each beam by bone. Dual-energy X-ray absorptiometry is the most widely used and most thoroughly studied bone density measurement technology. The test results of dual-energy X-ray absorptiometry is more accurate, and is the gold standard for bone density which WHO adopted. Dual-energy X-ray absorptiometry can be used to determine the absorption and ingestion conditions of the raw materials of bones during the process of growth and development of children, and analyze internal and external factors that may affect the growth of children, for the timely development of targeted nutrition programs and exercise plans, to ensure that the advantages of children in the aspects of bone growth and development.

The X-ray generated by dual-energy X-ray absorptiometry is an electromagnetic wave with short wavelength (shorter than the wavelength of visible light), large energy (tens to hundreds of thousands of times larger than the photon energy of visible light) and has penetrating effect, ionization effect and thermal effect. When the human body is irradiated with X ray, X ray can inhibit, destroy and even kill human cells, lead to varying degrees of changes in the physiology, pathology and biochemical aspects of human body. X-rays can also cause hair loss, skin burns, sight disorders, leukemia and other issues. In addition, X-rays also have an impact on the fetus by causing physical handicaps, fetal malformations, fetal brain dysplasia, as well as increasing the probability of childhood cancer. The tungsten alloy shielding can be used to shield X-ray radiation generated by dual-energy X-ray absorptiometry.

Tungsten alloy shielding for dual-energy X-ray absorptiometry is made of tungsten heavy alloy. Tungsten heavy alloy is a tungsten-based material that adds a small amount of nickel, copper, iron, cobalt, molybdenum, chromium and other metal binders. It has the characteristics of high density, high strength, good absorption capacity of rays and good machining property. Because the greater density of the metal means the better absorption capacity and shielding capability of rays, thus tungsten alloy shielding for dual energy X-ray absorptiometry  has excellent radiation shielding property that can effectively shield the X-ray generated by dual-energy X-ray absorptiometry.

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