Tungsten Electrode in Vacuum Electron Devices
Tungsten electrodes play a critical role in vacuum electron devices by enabling stable electron emission, electron control, and electron transmission under high-vacuum conditions. They are widely used in electron tubes, microwave devices, vacuum switches, electron guns, ion sources, and other vacuum electronic equipment. Tungsten features a high melting point of 3422°C, low vapor pressure, excellent high-temperature strength, and stable electron emission characteristics. It can maintain long-term structural and electrical stability under high-vacuum and high electric-field conditions, making it a key electrode material for vacuum electron devices.
1. Working Principle of Tungsten Electrodes in Vacuum Electron Devices
In a vacuum environment, tungsten electrodes emit electrons through thermionic emission or field emission. The emitted electrons are then accelerated, focused, controlled, or collected by electric fields. Due to tungsten's low evaporation rate and excellent high-temperature stability, it can maintain stable electron emission performance and dimensional accuracy during long-term high-temperature operation, ensuring device reliability and service life.
2. Types of CTIA’s Tungsten Electrodes in Vacuum Electron Devices
The materials and characteristics of CTIA’s tungsten electrodes in vacuum electron devices are shown in picture below:
3. Applications of CTIA’s Tungsten Electrodes in Vacuum Electron Devices
CTIA’s tungsten electrodes are used in: (1) vacuum interrupters and vacuum switch contacts; (2) anode, grid, and cathode systems in electron tubes; (3) microwave devices such as magnetrons and klystrons; (4) electron gun systems for electron beam welding equipment; (5) electron emission systems for electron microscopes; (6) ion source electrodes for ion implantation equipment; and (7) electron emission and focusing systems for X-ray generators.
4. Specifications of CTIA’s Tungsten Electrodes in Vacuum Electron Devices
(1) Materials: Pure Tungsten, Barium Tungsten, Tungsten Copper, Tungsten Rhenium
(2) Diameter: 0.1–20.0 mm, customizable
(3) Length: 5–500 mm, customizable
(4) Forms: Rods, pins, wires, and custom-machined components
(5) Note: CTIA provides customized tungsten electrode solutions based on vacuum electronic device structures and application requirements
CTIA GROUP brings more than 30 years of expertise in tungsten electrode manufacturing. CTIA offers pure tungsten, barium tungsten, tungsten copper, and tungsten rhenium electrodes with customized dimensions and configurations for vacuum electron devices, including electron tubes, microwave devices, vacuum switches, electron guns, and ion sources.
For any inquiry, please contact tungsten electrode manufacturer: CTIA GROUP
Email: sales@chinatungsten.com
Tel: 0086 592 5129696 / 0086 592 5129595
Website: www.tungsten.com.cn
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