Abstract

A high-performance electron gun for crossed-beams electron-ion collision experiments is presented. First test measurements demonstrated high electron currents, e.g., 1 A at 3.5 keV electron energy verifying the results of electron optics simulations carried out prior to the mechanical construction of the gun. Presently, the device is implemented into an ultra-high vacuum setup that will allow for its integration into an ion beamline for cross section measurements.

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