Factors of Selecting Radiation Shielding

The most common criteria for selecting shielding materials are radiation attenuation, ease of heat removal, resistance to radiation damage, economy and structural strength.

For the material, as we know, tungsten is always the suitable metal resistant to radiation damage, although there is some change in their mechanical properties after sintering.

Also the shielding cost is quite important; cost of tungsten must be a little expensive against the effect of shield size on other material, such as lead, for example, building size and support structure. However, its radiation absorption is excellent.

In that way to consider selecting a radiationshielding, then would be helpful to realize it varies with applications. The overall thickness of material is chosen to reduce radiation intensities outside the shield to levels well within prescribed limits for occupational exposure or for exposure of the general public. The reactor shield is usually considered to consist of two regions, the biological shield and the thermal shield. It is usually designed to absorb most of the energy of the escaping radiation and thus to protect the steel reactor vessel from radiation damage. It is often made of steel and is cooled by the primary coolant. The biological shield is added outside to reduce the external dose rate to a tolerable level.

Tungsten Radiation Shielding for X-rays

Major sources of radiation are nuclear reactors and associated facilities, medical and industrial x-ray and radioisotope facilities, charged-particle accelerators, and cosmic rays. Types of radiation are directly ionizing and indirectly ionizing, such as neutrons, gamma rays, and x-rays, etc. In most instances, protection of human life is the goal of radiation shielding. In other instances, protection may be required for structural materials which would otherwise be exposed to high-intensity radiation, or for radiation-sensitive materials such as photographic film and certain electronic components.

Gamma-ray and x-ray photons lose energy principally by some types of interactions: photoemission and pair production. Neutrons lose energy in shields by elastic or inelastic scattering. Elastic scattering is more effective with shield materials of low atomic mass, notably hydrogenous materials, but both processes are important, and an efficient neutron shield is made of materials of both high and low atomic mass.

Tungsten material could be used for radiation protection as its high density with excellent radiation absorption ability. For more details, you could visit tungsten radiation shielding for X-rays.

Tungsten Plastic for Radiation Shielding

Today, I received a sample of tungstenplastic for radiation shielding, which has the density about 10g/cm3 of a soft materiel could be shape various dimensions as per what you want.

It could be used as the radiation shielding clothing to shield the radiation such as X-ray, gamma ray, etc.

It has high shielding ability, environmental-friendly, flexibility for radiation shielding, compared to lead; tungsten plastic is lighter and thinner but with non-toxic and good radiation absorption ability. Also, if there is a need, it could be machined as it is soft enough to have a good machinability, so it could be used as clothing or be stuck onto the surface of the radiation room for radiation absorption. Different size will be available.

Also it could be used for medical imaging, radiotherapy systems, nuclear medicine, security systems, industrial CT, nuclear industry and other protective equipment for the operators.