Definition of geiger counter in English English dictionary
device for detecting the presence and intensity of radioactivity, Geiger-Muller counter
A Geiger counter is a device which finds and measures radioactivity. an instrument that finds and measures radioactivity (Hans W. Geiger (1882-1945), German scientist who invented it (with Walter M. Müller)). or Geiger-Müller counter Device used for detecting and counting individual particles of radiation. Invented by the German physicist Hans Geiger (1882-1945) and later refined with help from Walther Müller, the device is a gas-filled metal tube with a wire through its axis and a high voltage applied to the wire. As particles enter the tube, they create a large avalanche of ionization in the gas, which then discharges, creating a brief electric pulse. The tube produces the same large output pulse for virtually every charged particle that passes through the gas and so is useful for detecting individual particles. It can therefore indicate lower levels of radiation than is possible with other types of detectors
A device that detects the passage of charged particles via the ionization of gas that they cause as they pass through a region Used to detect the particles produced in certain forms of radioactivity
A gas-filled electrical device which detects the presence of radioactivity by counting the formation of ions
A Geiger-Müller detector and measuring instrument It consists of a gas-filled tube that discharges electrically when ionizing radiation passes through it and a device that records the events
A Geiger-Müller detector and measuring instrument It contains a gas-filled tube which discharges electrically when ionising radiation passes through it and a device that records these events
An instrument for detecting and measuring ionizing radiation It contains a gas-filled tube which discharges electrically when ionizing radiation passes through it