Geiger Counter
| Also Known As | Geiger-Müller counter, GM counter, radiation detector, Geiger tube |
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What is Geiger Counter?
A Geiger counter (Geiger-Müller counter) is an instrument for detecting and measuring ionizing radiation. It consists of a gas-filled tube (usually helium, neon, or argon with a halogen) with a central wire electrode. When ionizing radiation enters the tube, it ionizes the gas and creates a detectable electrical pulse. Each pulse is counted or converted to an audible click.
Properties & Characteristics
Uses & Applications
Safety Information
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
Key Facts
Frequently Asked Questions
A Geiger counter (Geiger-Müller counter) is an instrument for detecting and measuring ionizing radiation. It consists of a gas-filled tube (usually helium, neon, or argon with a halogen) with a central wire electrode. When ionizing radiation enters the tube, it ionizes the gas and creates a detectable electrical pulse. Each pulse is counted or converted to an audible click.
Radiation safety monitoring and surveys. Nuclear power plant monitoring. Environmental radiation detection. Medical radioisotope handling facilities. Laboratory radiation safety. Emergency response to nuclear incidents. Prospecting for radioactive minerals. Educational demonstrations.
Device used for radiation safety — the instrument itself is not hazardous. May give false readings near electromagnetic interference. Battery depletion can cause false "safe" readings. Dead time can cause underestimation at very high dose rates. Regular calibration required.