0.1-100 kV wide beam electron source

The European Space Agency commissions IRF in Sweden to produce electron spectrometers for use in the upper atmosphere and deep space. IRF required a test source to calibrate their equipment prior to flight. Kore was the only company in the world who was able to take on the challenge of an electron gun with such exceptional dynamic range.

The gun emits electrons in parallel paths to the nearest 0.2° over an 8cm diameter beam, with a current density continuously variable over seven orders of magnitude. One of the challenges was to keep the electron trajectories parallel over the full range of energies (100 eV to 100 keV) without compromising a third specification - that of uniform current density over the full beam diameter.

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Last updated: 10 September 2005 21:31