What Is A Photomultiplier Tube And How Does It work?
Among the photosensitive devices in use today, the photomultiplier tube is a multipurpose device that offers extremely high sensitivity as well as a fast response. This tube involves a photocathode followed by focusing electrodes, an electron collector, and an electron multiplier in a vacuum tube. At the point when light enters the photocathode, the photocathode radiates photoelectrons into the vacuum. These photoelectrons are then coordinated by the centering cathode voltages towards the electron multiplier, where electrons are increased by an optional emission cycle. With the help of an anode, the multiplied electrons are gathered as an output signal. Photomultiplier Tubes provide very high sensitivity as well as extremely low noise among the photosensitivity devices because of the secondary-emission multiplication. These photosensitive devices are used to identify radiant energy in the visible, ultraviolet, and near infrared-regions. The photomultiplier tubes are also appreciat