Electron multiplier

This can be repeated a number of times, resulting in a large shower of electrons all collected by a metal anode, all having been triggered by just one.

In 1930, Russian physicist Leonid Aleksandrovitch Kubetsky proposed a device which used photocathodes combined with dynodes, or secondary electron emitters, in a single tube to remove secondary electrons by increasing the electric potential through the device.

[3] A continuous dynode system uses a horn-shaped funnel of glass coated with a thin film of semiconducting materials.

Continuous dynode electron multipliers are also used in NASA missions and are coupled to a gas chromatography mass spectrometer (GC-MS) which allows scientists to determine the amount and types of gasses present on Titan, Saturn's largest moon.

The resulting image patterns the original and allows for better vision in the dark, while only using a small battery pack to provide a voltage for the MCP.