Barium tungsten cathodes have important applications in laser photocathodes. A laser photocathode is a device that uses a laser beam to excite electrons to generate an electron beam. It is used in accelerators, free electron lasers (FEL) and other fields. The following is some information on the application of barium tungsten cathode in laser photocathode:
Electron emission: The barium tungsten cathode can emit electrons stably, and these electrons can form electron beams under the excitation of laser.
Laser Excitation: A laser photocathode uses a laser beam to excite electrons with enough energy to form an electron beam.
Electron beam generation: Through the excitation of the laser, the electrons on the barium-tungsten cathode are dissociated and accelerated to form a high-speed electron beam.
High Brightness Electron Source: The electron beam generated by the laser photocathode has high brightness and compactness, making it widely used in accelerators and free electron lasers.
Free electron laser: The high-brightness electron beam generated by the laser photocathode can be used to generate free electron laser for material research, biological science and other fields.
Particle acceleration: By sending the generated electron beam into an accelerator, it can be accelerated to high energy for particle physics research, etc.
Compactness: Laser photocathodes are compact compared to conventional accelerators, saving space and cost.
Scientific research: Laser photocathodes are widely used in material research, biological science, physical research and other fields to generate high-energy electron beams and free electron lasers.
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