The uses of diffused barium tungsten cathodes are mainly concentrated in vacuum electronic devices, especially those that require high-performance electron emission. The following are its main uses:
Microwave vacuum electronic devices
This is the main application area of diffused barium tungsten cathodes. In these devices, the performance of the cathode (such as electron emission performance, emitted electron uniformity and life) has a direct impact on the overall performance of the device. The diffused barium tungsten cathode can provide stable and efficient electron emission, meeting the needs of microwave vacuum electronic devices for high-performance electron sources.
High-power electron beam equipment
In high-power electron beam equipment, such as electron beam welding machines, electron beam melting furnaces, etc., high-energy density electron beams are required. The diffused barium tungsten cathode can generate a sufficiently powerful and stable electron beam to meet the working requirements of these devices.
Displays and picture tubes
Diffused barium tungsten cathodes were also widely used in early cathode ray tube (CRT) displays and picture tubes. They can produce uniform and stable electron beams to ensure the clarity and stability of image display.
In addition, the diffused barium tungsten cathode also has a certain versatility and can be customized and optimized according to specific application requirements. For example, by adjusting the cathode preparation process and material ratio, its electron emission performance can be optimized, its service life can be extended, or specific working environment requirements can be met.
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