Barium tungsten cathode has excellent performance in electron emission, which is mainly reflected in the following aspects:
Low operating temperature: Barium tungsten cathode can achieve good electron emission at relatively low temperature, which makes it suitable for applications in different temperature ranges.
High electron emission efficiency: Barium tungsten cathodes can achieve high-efficiency electron emission under appropriate conditions. After adding elements such as barium, the emission efficiency of electrons from the surface of the electrode is significantly improved, allowing the electrode to generate a stronger electron beam.
Stability: The electron emission performance of barium tungsten cathodes is usually relatively stable and can maintain consistent emission characteristics over a long period of time. This makes it suitable for long-running applications.
High-brightness electron source: The electron beam generated by the barium-tungsten cathode has high brightness, that is, the number of electrons per unit area is relatively large. This is very beneficial for applications that require a high intensity electron beam.
Electron beam control: The barium tungsten cathode can control the intensity and direction of the electron beam by adjusting the electric field, voltage and other parameters of the electrode, so as to adapt to different application requirements.
Adapt to high vacuum environment: The electron emission performance of barium tungsten cathode is also excellent in high vacuum environment, which makes it advantageous in applications requiring high vacuum conditions.
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