Tungsten and tungsten heavy alloy in metallic form and tungsten compounds are used in various forms of tungsten heavy alloy radiation shielding. Their high densities meet the primary requirement of a tungsten heavy alloy radiation shielding material and in certain tungsten radiation shielding application, tungsten's high atomic number is also important. The ease with which tungsten can be worked is of added value.

The tungsten heavy alloy radiation shielding of containers for radioactive materials is usually metallic tungsten. Radioactive materials in laboratories and hospitals are usually handled by remote control from a position of safety behind a wall of tungsten bricks and X-ray machines are normally installed in rooms lined with sheet tungsten.


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Tungsten metal is a grayish-white lustrous metal that is often brittle and hard to work. Of all metals in pure form, tungsten has highest melting point of all elements except carbon - vary between 3387°C and 3422°C. It also has good thermal and electrical conductivity. Its electrical conductivity at 0°C is about 28% of that of silver which itself has the highest conductivity of all metals. In addition, it has low vapor pressure at high temperatures.

Such properties make tungsten metal a high performance material in high temperature products and processes. Tungsten metal powder is used as a filler material in plastic composites, which are used as a nontoxic substitute for lead in bullets, shot, and radiation shields.



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Compared to traditional radiation shielding materials such as lead and boron carbide, tungsten funnel shielding provides excellent density with small capacity. At the same weights high density alloy can provide the same energy absorption as lead using 1/3 less material.

During design of tungsten funnel shielding, tungsten funnel shielding is calculated according to requirements of shield to abate the multiple shielding materials' thickness.



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Tungsten alloy collimator shielding is a device that narrows a beam of particles or waves. It belongs to input and output element of optical fiber communicaiton devices. It can be adopted as linear accelerator and cyclotron in medical treatment.

Tungsten alloy collimator shielding has a simple structure, through which the fiber radiate light can be converted into parallel light (gaussian beam). So its main fuction is to efficiently maximize the light coupling into the devic.


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