The Elements of Array and MicroChannel Plates

A typical single microchannel electron multiplier. Note how the primary ion beam causes a shower of electrons to form, The shower is accelerated toward the other end of the microchannel, causing the formation of more and more secondary electrons. 

Comparison of Multipoint Collectors (Detectors) of Ions Arrays and MicroChannel Plates 215 

A different form of miniature electron multiplier. The curved shape is used to reduce backscattering of the electrons. The final output of electrons flows along a wire to an amplifier. 

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