EMI photomultiplier tube Type 6256B
PMTs are vacuum tubes that detect and amplify light in the ultraviolet, visible, and near-infrared ranges. Key features of PMTs:High Sensitivity:PMTs multiply the current produced by incident light by up to 100 million times, allowing detection of individual photons. Principle of Operation:They use the photoelectric effect, where light striking a photocathode releases electrons, which are then multiplied through a series of dynodes. Applications:PMTs are used for detecting faint optical signals in various fields, including scientific research, medical imaging, and industrial applications. Fragility:PMTs are sensitive devices and can be damaged by exposure to high-intensity light or physical impact. instant Response:PMTs respond quickly to changes in light, making them suitable for detecting fast events. Vacuum Tube:PMTs operate in a vacuum to ensure efficient electron multiplication and prevent interference.