The hollow cathode of barium tungsten emitter has several significant advantages, which make it an ideal choice in various vacuum electronic devices.
Efficient electron emission
The hollow cathode of barium tungsten emitter forms a layer of barium atoms with low work function on the surface of the cathode through the reaction of active substances with tungsten matrix, thereby achieving efficient and stable thermal electron emission. This design enables the cathode to produce higher electron emission density and current density at a lower operating voltage, meeting the needs of generating high-frequency electromagnetic waves or particle beams.
Long service life
Because the barium tungsten emitter has a large amount of active substances stored inside, it can continuously replenish the barium loss caused by evaporation, gas poisoning, etc., so the cathode surface can maintain a stable low work function state, thereby achieving long-term stable thermal electron emission. This makes the hollow cathode of barium tungsten emitter have a long service life and reduces the maintenance cost of the equipment.
Uniform thermal emission performance
The structural design of the hollow cathode of barium tungsten emitter can optimize the impregnation of active substances and the diffusion migration of barium atoms, thereby ensuring the emission uniformity of the cathode surface. This uniformity is crucial to the performance of vacuum electronic devices and can avoid performance fluctuations or damage caused by uneven emission.
Wide adaptability
The preparation process of the barium tungsten emitter hollow cathode is relatively simple and compatible with a variety of vacuum electronic devices. At the same time, by optimizing the selection and preparation process of active materials, the performance of the cathode can be further improved to meet the needs of different applications.
Environmental protection
The barium tungsten emitter hollow cathode produces fewer harmful substances during operation and is easy to recycle and dispose of. This helps to reduce environmental pollution and resource waste, and meets the requirements of environmental protection and sustainable development.
In summary, the barium tungsten emitter hollow cathode has the advantages of high efficiency, stability, long life, good uniformity and environmental protection, which makes it have a wide range of application prospects in various vacuum electronic devices.
More details of tungsten barium electrode or tungsten barium cathode, please visit website: http://tungsten.com.cn/barium-tungsten-cathode.html
Please contact CHINATUNGSTEN ONLINE for inquiry and order of tungsten needles:
Email: sales@chinatungsten.com
Tel.: +86 592 5129595
