Electron gun schematic (IMAGE)

DOE/Brookhaven National Laboratory

Electron gun schematic

Caption

Polarized electron gun: The cone-shaped high-voltage (HV) feedthrough connector delivers current to gun. When laser photons strike the gallium-arsenide (GaAs) photocathode, emitted electrons flow from cathode to anode and out of the gun as a highly polarized electron beam (e-beam).

Credit

Erdong Wang/Brookhaven National Laboratory

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