Gamma Rays Absorbed by High Density Material

Gamma rays are better absorbed by materials with high atomic numbers and high density, such as tungsten alloy material. Although neither effect is important compared to the total mass per area in the path of the gamma ray. For this reason,lead shield is only modestly better (20–30% better) as a gamma shield, than an equal mass of another shielding material such as aluminium, concrete, water or soil, lead's major advantage is not in lower weight, but rather its compactness due to its higher density. Therefore, tungsten alloy material is better in its high density,good radiation absorption, etc.

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Tungsten and Radiation

Hey guys, I'm studying in physics recently.

Okay, here's my idea: We use lead to protect us from gamma radiation because it's dense enough to somewhat absorb the tiny wave length.

As I take it, tungsten is more dense than lead, right? Wouldn't it be safer to use tungsten instead of lead? (Looking away from the price aspect, of course...)

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Tungsten Alloy Radiation Parts

Tungsten alloys are used for radioactive source containers, gamma ray protection, radiation shields, x-ray shielding and source holders for oil-well, logging, and industrial instrumentation.

A particularly dense material with excellent shielding properties is needed to ensure that the surrounding tissue is protected and the radiation guided only to the intended locations--High density tungsten alloys are widely used as Medical and Industrial Radiation Shielding.

Chinatungsten's tungsten alloys are used for radioactive source containers, which can to be made as collimator and shielding for cancer therapy machines, and as syringe protection for radioactive injections.

There is no licensing required for tungsten alloy materials. Tungsten alloys are stable at high temperatures.

Non-Radioactive Tungsten Materials

Two significant alternative, non-radioactive tungsten materials have been developed. The first one, introduced in the 1980's, is most commonly available as 2% ceriated tungsten. This material is commonly used for lower amperage DC welding applications. In fact, it holds a very high market share in sales for the orbital welding process.

More recently, 1½% lanthanated tungsten has emerged as what could be the future standard for tungsten electrodes. The 1½% by weight content (as opposed to 2%) was chosen by three of the largest manufacturers as the optimum content amount based on scientific studies which showed that this content amount most closely mirrors the conductivity characteristics of 2% thoriated tungsten. Therefore, welders can usually easily replace their radioactive 2% thoriated material with this tungsten and not have to make any welding program changes. In addition, since the lanthanum oxide material is less dense that thorium oxide, a stick of 1½% (by weight) lanthanated tungsten actually contains 15% more oxides by volume than a stick of 2% (by weight) thoriated tungsten. This aids in arc starting and stability, as well as longevity, because the additional volume of oxides keep the tip cooler.

Finally, 1½% lanthanated tungsten is suitable for both AC and DC welding applications. Therefore, facilities that stock both 2% thoriated tungsten for DC welding and another tungsten type (usually pure or zirconiated tungsten) for AC welding, could stock only one tungsten type.

Tungsten Alloy X-Ray Tube

Tungsten alloy X-ray tubes used for diagnostic imaging typically consist of four main components: the anode, the cathode, the frame structure and the housing. The main function of the anode is to provide a track material for the electron beam, which is generally a tungsten-rhenium alloy. In general, the process of X-radiation production is only 1 % efficient at generating characteristic X-ray radiation, the rest is converted to heat. Heat management is paramount; particularly since higher power levels are desired due to the increase in X-ray efficiency with power, and faster imaging. Due to the large energy adsorption, it is necessary to rotate the anode to constantly bring cooler material under the electron beam.

Several different materials have been described as being useful as tungsten alloy x-ray tube anodes to give radiation protection.

Chinatungsten Could Offer Tungsten Heavy Alloy Radiation Shielding

Tungsten alloy radiation shielding could be used for shielding against automatic energy and X-rays. Chinatungsten could produce custom items to your specified dimensions and thickness. Compared with lead material, tungsten heavy alloy material will be much suitable for this filed as its high temperature resistance, high melting point, excellent radiation absorption, non-toxic, etc. For more details, you could visit website www.tungsten-alloy.com.

Tungsten Alloy Shielding for Reducing Harmful Radiation

Tungsten Alloy radiation shielding is becoming more and more popular, as it could protect people from harmful effects of ionizing radiation, a type of excellent radiation-absorbing material is badly needed.

Experts find that radiation exposure could be reduced by maxing shielding. The density of a material is related to its radiation stopping ability. Higher density means better stopping power and shielding. Due to a higher density, tungsten alloy radiation shielding has a much higher stopping power than lead. Its greater linear attenuation of gamma radiations means that less is required for equal shielding.

Tungsten heavy alloy is a suitable raw 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), simplified life cycle and high strength. It can provide the same degree of protection as lead whilst significantly reducing the overall volume and thickness of shields and containers. Besides, compared with lead or depleted uranium in the past, tungsten heavy alloy radiation shielding is more acceptable because they are non-toxic.