Lead is a conventional medical radiation protection material for radiation protection in nuclear medicine. Recently, tungsten alloy shield is developed as a new poison-free medical radiation protection material.
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You know, gamma ray is often used as the radiation source in diagnostic equipment. While gamma ray is an energetic ionizing radiation that can damage healthy cells as it slows down and transfers its energy to surrounding cancer cells. Lead and concrete have been used as radiation shielding materials. However, lead is toxic to harm people’s health and pollute the environment. Thus, there is an urgent need to find a sustainable radiation shielding material to safeguard the human and the environment from destructive impact of radiation. High atomic number and high-density materials such as tungsten are the best effective radiation shielding materials. Tungsten alloy is the most promising medical radiation protection material for medical shields.
