Photomultiplier tube working principle diagram

Photomultiplier Tube Working Principle Diagram


A photomultiplier tube (PMT) is a highly sensitive device used to detect and amplify light signals. It works by converting photons into electrons through the photoelectric effect, and then multiplying those electrons through a series of stages to produce a measurable electrical signal. The diagram illustrates the internal structure and operation of a PMT. At the heart of the device is a photocathode that emits electrons when struck by light. These electrons are then accelerated toward a series of dynodes, where each dynode multiplies the number of electrons through secondary emission. Finally, the electrons reach an anode, where they generate a current that can be measured. This process allows PMTs to detect even very weak light sources, making them widely used in scientific research, medical imaging, and optical sensing applications.

10-point Touch

capacitive touch sensor,PCAP sensor,pcap touch foil

Guangdong ZhiPing Touch Technology Co., Ltd. , https://www.zhipingtouch.com