The electron source is the core source component of a particle accelerator, generating and emitting a high-quality electron beam. It typically consists of a cathode, an anode, a focusing electrode, and high-voltage insulation structures, operating on thermionic or field-emission principles. Its performance directly determines the overall beam quality of the accelerator. Key specifications include emission current density, beam emittance, energy spread, and long-term operating stability. A high-quality electron source delivers a beam with high brightness, low emittance, and excellent repeatability — the essential foundation for subsequent acceleration, focusing, and efficient applications such as free-electron lasers, synchrotron radiation, or industrial irradiation.
We provide electron beams with energies of 1 keV–200 keV, beam currents of 1 nA–15 mA, and spot sizes of 1 mm–50 mm. An optional scanning system enables uniform scanning over an area of up to 1000 mm×1000 mm.
Product Series
Product datasheets for the electron source series are in preparation — stay tuned. For custom electron source solutions, please contact us directly.