A photomultiplier tube (PMT) is a highly sensitive electronic device used to detect and amplify weak optical signals. It is commonly employed in various applications that require the detection of low-intensity light, such as in particle physics experiments, medical imaging devices, analytical instruments, astronomy, and fluorescence-based measurements.
The basic structure of a photomultiplier tube consists of several key components:
Photocathode: This is the front surface of the PMT that absorbs incident photons (light) and emits electrons through the photoelectric effect. The material used for the photocathode depends on the application and desired wavelength sensitivity.
**Electron Multiplier (Dyna<|endoftext|>