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A fast response Faraday cup has been developed for measuring low-energy, nanosecond-pulse ion beams. It is made of a coaxial Faraday cup before which a thin gold foil has been set, and it measures the waveform of low-energy, nanosecond-pulse ion beams by using the secondary electrons emitted in the forward direction from the foil.
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Iida et al. (1982) studied this question.
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