What is the electron multiplier?

Electron multiplier is a device that increases electron emissions of electron current. It bombes the emission material with a current of electrons, causing the material to emit electrons. Each electron that affects the emission material can cause up to three electrons to multiply the electron current emissions. The use of the electrical potential difference between the following boards causes the emitted electrons from the first board to jump onto the second plate, causing more electrons emissions from the second board. This process continues with a number of plates, resulting in emissions of many other electrons than in the early electron current. The anode then collects electrons produced by the electron multiplier.

The cascading effect of electrons requires the telektrons to hit the emission material with sufficient energy to cause secondary emissions. This requirement allows the electron multiplier to function as an ion detector. Photon current can also cause photon emissionsAs in the case of a photo -tube of the photomultiplier. This device separates each emission surface by a series of anodes known as dynodes. A number of resistors separate dynodes from each other so the electrical potential between consecutive dynodes is usually +100 volts on +200 volts

This structure requires that the electrode material has a high electrical resistance to the compliance with the voltage dividing function with the secondary issue function. The electron multiplier usually has the shape of a funnel and is made of glass. The glass funnel has a thin coating of a substance with a limited ability to perform electricity known as a semiconductor.

The

electrone sewing seams receives a high negative voltage at the wide end of the funnel and low positive voltage at the narrow end of the funnel. This voltage configuration causes the funnel to release electrons from its surface, which then moves from the wide end to the narrow end of the funnel. Electrons travel to a shortDistance before the surface of the funnel, causing more electrons emissions.

The anode at the narrow end of the funnel collects electrons. This arrangement is known specifically as a one -channel electron multiplier. The micro -channel plate is a more complex type of electron multiplier, which uses a two -dimensional field of single -channel electron multipliers.