Scintillation detectors are devices used to detect and measure ionizing radiation. They work by using a scintillator material, which emits flashes of light (or scintillations) when it interacts with radiation. This light is then converted into an electrical signal by a photodetector, such as a photomultiplier tube. These detectors are widely used in various fields, including nuclear medicine, radiation safety, and particle physics. They are valued for their sensitivity and ability to provide real-time measurements of radiation levels, making them essential tools in both research and practical applications.