Tungsten heavy alloy shield is made with high tungsten content and low amounts of Ni, Fe or Ni, Cu. Some tungsten alloy shields are added Co, Mo or Cr, etc. The density of tungsten heavy alloy could be as high as 16.8-18.8g/cm3.
More details, please visit:
http://www.tungsten-alloy.com/tungsten-alloy-radiation-shielding.html
Tungsten heavy alloy offers a number of advantages as a radiation shielding material for medical applications:
1. Good corrosion resistance under ambient conditions.
2. Low toxicity and completely lead-free.
3. Superior radiation attenuation compared to lead.
4. With higher mechanical properties, it is more damage resistant than lead.
5. Easily machined into complex geometries.
6. High hardness, high strength, and good ductility make for better durability than lead.
Owing to these excellent properties, tungsten heavy alloy shield is widely used in the medical applications including shields for radiography, X-ray collimators, CT detectors, PET syringe shield, vial shield, isotope container, FDG container, multileaf collimator, tungsten heavy alloy sheet, tungsten heavy alloy foil, etc.
