Barium tungsten cathodes generally have relatively stable electron emission characteristics, especially under proper operating conditions. The following are some key factors for the stability of barium tungsten cathodes:
Material stability: Barium tungsten cathodes are composed of stable tungsten materials and barium compounds. These materials can have good chemical stability under appropriate conditions and help maintain electron emission performance.
Cathode Design: The structure design and preparation process of barium tungsten cathode can affect its stability. Reasonable structural design and preparation process can reduce the performance degradation of the cathode in long-term use.
Working temperature: The electron emission performance of barium tungsten cathode is relatively stable in a certain temperature range. Proper working temperature can maintain the stability of the cathode.
Operating current: The operating current of the cathode will also affect its stability. Working in a suitable current range can reduce the variation of electron emission performance.
External environment: External environmental conditions, such as temperature, humidity, atmosphere, etc., may affect the stability of the barium tungsten cathode. Maintaining a suitable working environment helps maintain stable electron emission performance.
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