Tungsten Alloy Shielding And Radiation Protection

Tungsten alloy shielding plays an important role in the field of radiation protection with its great radiation shielding effectiveness. Radiation protection, sometimes known as radiological protection, is defined by the International Atomic Energy Agency (IAEA) as "The protection of people from harmful effects of exposure to ionizing radiation, and the means for achieving this". Its main tasks are to protect the health and safety of personnel engaged in radiation work, public and their descendants, to protect the environment, and to promote the development of atomic energy industry. The main content of the radiation protection consists of standards for radiation protection, radiation protection evaluation, radiation dosimetry, technology of radiation protection and radiation protection management. The factors of radiation protection include time, distance and shielding. Shielding means set a shielding material between the radiation source and the body to attenuate the intensity of radiation, thereby reducing the radiation levels.

Radiation is often classified as either ionizing radiation or non- ionizing radiation depending on the energy of the radiated particles. Ionizing radiation is radiation that carries enough energy to free electrons from atoms or molecules, thereby ionizing them. The common ionizing radiations are α particles, β particles, protons, neutrons, X rays, and γ rays. While non- ionizing radiation has lower energy than ionizing radiation and does not ionize atoms or molecules. For people involved with the radiation work, radiation hazards will occur when not take protective measures to protect body from being irradiated with a dose of radiation. Radiation can cause radiation sickness, making lesions in almost all human organs and systems (including the nervous system, blood-forming organs and the digestive system). And it can also cause acute radiation injury due to a certain dose of radiation exposition in a short time and chronic radiation injury whose irradiation time is longer. Chronic radiation injury will lead to skin damage, weakened immunity, impaired fertility and so on.

There are a many types of tungsten alloy shielding, including tungsten alloy shielding tank, tungsten alloy shielding container, tungsten alloy shielding cover, tungsten alloy shielding shell. Because the radiation shielding properties of a metal material increases with the increasing of its density, and tungsten alloy has great density, tungsten alloy shielding therefore has excellent radiation shielding capability and absorption capacity. Putting a tungsten alloy shielding between the body and the radiation source can effectively reduce the radiation intensity to avoid radiation damage. 

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