Geiger–Müller tube

A Geiger–Müller (GM) tube is a type of radiation detector that measures ionizing radiation, such as alpha particles, beta particles, and gamma rays. It is widely used in various applications, including radiation safety, medical diagnostics, nuclear industry monitoring, and scientific research. The GM tube consists of a gas-filled chamber, typically containing a low-pressure inert gas like helium, neon, or argon, along with a halogen or other quenching gas.