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Types of JEOL’s EB Tungsten Filament

What Is JEOL’s EB Tungsten Filament?

Evaporation source materials used for vapor deposition require excellent electrical conductivity, high melting point and low vapor pressure. Therefore, many vapor deposition accessories are made of tungsten. Filaments/heaters made of tungsten have the characteristics of high melting point, low thermal expansion coefficient, good corrosion resistance and long evaporation life.

Japan Electron Optical Laboratory is the full name of JEOL. After decades of exploration and research by the world's top scientific instrument manufacturers, they created this brand. And now their products are widely used in the fields of medicine, biology, biochemistry, agriculture, material science, metallurgy, chemical industry, petroleum, pharmaceutical, semiconductor and electronics. Their filaments are well known in the world and widely used in many files.

Their filaments have a powerful vacuum system and is widely used in SEM (Scanning Electron Microscope). These filaments use the latest optoelectronic systems to improve image quality in scanning electron microscopes.

EB tungsten filament photo The types of EB Tungsten Filament

They include 0.55mm of mosquito type, 0.65mm of mosquito type, 0.8mm of mosquito type, 0.8mm of eccentric type and 0.55mm of half-moon type. These filaments have strong plasticity in maintaining electron gun and optical coating.

1, Mosquito Coil: the shape of the filament is similar to the mosquito coil, therefore, it can be named as Mosquito Coil. And the Mosquito Coil can be divided into many specifications.

2, Pull-type: Pull-type is also known as the cavity type of Mosquito Coil.

3, U-shaped: this kind of filament is similar to the shape of the letter U.

4, U-shaped with folding legs: the feet of the filament has a curved.

5, Half Moon: the shape of this type is the shape of a half moon.

6, Straight shape

Our company is professional manufacturer of tungsten for more than two decades. EB Filaments especially JOEL types are available. Please feel free to contact us for more information.

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