sekundääriemissioon
Sekundääriemissio, also known as secondary emission, is a phenomenon where electrons are emitted from a material when it is bombarded by primary charged particles, typically electrons or ions. These emitted electrons are called secondary electrons. The process is crucial in the operation of various electronic devices.
The number of secondary electrons emitted per incident primary particle is quantified by the secondary emission
Secondary emission plays a significant role in vacuum tubes, such as photomultiplier tubes and cathode ray
However, secondary emission can also be an undesirable effect. In high-frequency circuits and high-power vacuum devices,