Tungsten is Good Choice for Radiation Shielding

Unlike lead, tungsten material could reduce the size and volume to have the same radiation absorption as lead.

As we know, tungsten is widely used for radioactive source containers, gamma radiography, shields and source holders for oil-well, logging, and industrial instrumentation, because of its high density, much denser then better radiation absorption. Therefore, tungsten is also popular for medical radiation shielding such as used in cancer therapy, as well as syringe protection for radioactive injections, etc.

When you need to direct a specific amount of radiation to a targeted area, tungsten provides the control you need even under extreme, high-heat conditions.

Any more details could found in tungsten radiation shielding. 

Tungsten Alloy Tube for Radiation Shielding

Tungsten Alloy are more useful for detecting beta particles and gammas. Most counters cannot detect alpha particles. Remember that alpha particles are easily shielded. For this reason, tungsten alloy tube has to be made with a special window, or else the window itself will block the alpha particles and they won't be detected. Secondly, the counter must be held steady for several seconds at the same distance in order for us to obtain a good reading. Moving the counter around will change the number of particles that enter the tube; so make sure that you hold the tube the same distance from each object that you are trying to measure, or else your results will not be accurate. A third disadvantage of a Geiger counter is that it cannot measure very high amounts of radiation; in fact, the machine can be damaged if you expose it to an extremely high radiation, but that is unlikely in our case.

Different Radiation and Shielding

Lead
Lead, atomic number 82, is the most popular metal used for radiation protection due to its inexpensive cost. It works well in shielding against radiation because electrons stop x-rays, and lead has 82 protons and electrons, which is higher than many other metals. When using metals to stop x-rays from passing through, it is important to note that the thickness of the metal is just as important as the number of electrons in the metal. A metal with a lower number of electrons per atom, such as aluminum, could also be used, but it would have to be a lot thicker in order to provide the same level of protection.

Tungsten
Tungsten alloys, which form a solid microstructure of tungsten, protect against x-rays because of their high density. This means that tungsten alloys have a greater x-ray stopping ability than lead by up to 60 percent. Due to this greater x-ray stopping power, the metal can be manufactured into aprons and shields that are considerably less thick and bulky than those made out of lead. This is a newer technology than lead and is more expensive to manufacture, so it is currently not used as often. As technology continues to develop and tungsten alloy manufacturing becomes more common, the prices will likely drop and tungsten alloys will be utilized more often.

What Are the Different Types of Radiation Shielding?

Radiation shielding is the use of materials or devices to protect against ionizing radiation. Radiation occurs when energy is emitted from one substance and travels out in straight waves, possibly penetrating another substance. When this energy is absorbed, it can have the effect of exciting or destabilizing atoms. If a certain radiation penetrates an animal, it can have harmful impacts on the body, sometimes causing cancer or deformities. Shielding uses specific types of material, such as a leaded glass pane, a lead apron, or packed dirt, to act as a barrier between the body and the source of radiation.

However, compared with other materials, tungsten alloy material is the most suitable for radiation protection.As tungsten alloy is the right material for radiation protection, as its combination of radiographic density (more than 60% denser than lead), machinability, good corrosion resistance, high radiation absorption (superior to lead and steel), simplified life cycle and high strength.

Weather Station Radiation Shields

A well-designed radiation shield will reduce the temperature error or excess heating caused by the sun shining directly on the temperature sensing element.

A popular naturally ventilated radiation shield design is the Gill Multi-Plate Radiation Shield that protects temperature and relative humidity sensors from error-producing solar radiation and precipitation. This type of shield relies on a combination of plate geometry, material and natural ventilation to provide effective shielding. For best performance, the shield should be placed in a location with the following characteristics:

- Good air circulation around shield.
- Away from large masses (buildings, masts, solar panels) especially metal items.
- Away from exhaust vents, electrical machinery and motors.
- Away from water fountains and sprinklers.

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