The application of tungsten needle in the field of X-ray source is as anode material. X-ray tube is a device that generates X-rays. Its anode material needs to withstand high current to emit electrons, and also needs to resist the influence of high temperature and vacuum environment. Because tungsten needle has the characteristics of high melting point, high density and excellent heat resistance, it is used as anode material for X-ray tube.
The application of tungsten needle in the field of X-ray source is specifically reflected in the following aspects:
1. Withstand high current: When the X-ray tube is working, the anode needs to withstand high current to emit electrons. As an anode material, tungsten needle can withstand the impact of high current and maintain stable performance.
2. Resist high temperature: When the X-ray tube is working, the surface of the anode will form high temperature, reaching a temperature of thousands of degrees Celsius. Tungsten needle has a high melting point and can resist the influence of high temperature environment and maintain stable performance.
3. Adapt to vacuum environment: X-ray tubes need to work in a high vacuum environment to avoid air absorption of X-rays. Tungsten needle has excellent heat resistance and chemical stability, and can adapt to the requirements of vacuum environment.
4. Improve service life: Tungsten needle has high density, which can effectively inhibit the diffusion of electrons in the material, thereby reducing the loss of the anode during operation and extending its service life.
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