Origin of Geiger counterafter H. Geiger (1882-1945), German physicist
an instrument for detecting and counting ionizing particles that pass through it: it consists of a needlelike electrode inside a hollow metallic cylinder filled with gas which, when ionized by the radiation, sets up a current in an electric field: a refined version (Geiger-Müller counter) with an amplifying system is used for detecting and measuring radioactivity
An instrument that detects and measures the intensity of radiation, such as particles from radioactive material, consisting of a Geiger tube and associated electronic equipment. Also called Geiger-Müller counter .
Origin of Geiger counterAfter Hans Wilhelm Geiger (1882-1945), German physicist
An electronic instrument that detects and measures nuclear radiation, such as x-rays or gamma rays. The Geiger counter consists of a gas-filled tube with a charged electrode connected to a counter. As radiation passes through the gas it ionizes atoms along its path. The ions are attracted to the charged electrode, creating pulses of electric current that are registered by the counter.
(plural Geiger counters)
- A device designed to detect radioactivity and measure its intensity.
Named after Hans Geiger who developed the first such device in 1908 together with Ernest Rutherford.