Abstract

We present a high-performance electron gun to be employed in crossed-beams electron-ion collision experiments. High electron currents, e.g., 1 A at 3.5 keV, have already been demonstrated verifying the results of electron optics simulations carried out prior to the mechanical construction of the gun. Currently, the device undergoes a major test phase in a specifically constructed ultra high vacuum setup before the integration into the ion beamline of the Giessen crossed-beam experiment.

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