What Is a Green Cathode?

Cathode rays were discovered in 1858 when studying gas discharge using a low-pressure gas discharge tube. In 1897, Joseph John Thomson determined that the particles in the cathode ray were negatively charged according to the trajectory of the cathode ray in the discharge tube under the action of electromagnetic fields and magnetic fields, and measured the charge-mass ratio. The electron was discovered twice, and 12 years later, American physicist Robert Andrew Milligan measured the charge of the electron using an oil droplet experiment.

From low pressure gas

Cathode rays are widely used. Oscilloscope in electronic oscilloscope, television

Crooks cathode ray tube at

The cathode ray has two properties, one is perpendicular to the cathode, and the other is negatively charged, and always starts from the cathode, and the end point has nothing to do with the anode.

Cathode ray tube is a kind of cathode ray tube which can reduce the power consumption of the cathode heater. Among them, the indirectly heated cathode structure has a metal substrate with a layer of thermionic emission material; a base for holding the base metal is provided at one end portion, and a tubular sleeve for storing free electrons of the heater is also provided inside; The tube diameter is large, the tube diameter on the side of the leg of the heater is small, and it is also a special-shaped support body that supports the sleeve.