Geiger

Definition

A Geiger counter is a device used for detecting and measuring ionizing radiation. It consists of a Geiger-Müller tube that produces an electrical signal when radiation is detected.

5 Must Know Facts For Your Next Test

1. The Geiger counter was invented by Hans Geiger in 1908.
2. It detects alpha, beta, and gamma radiation by ionizing the gas within the Geiger-Müller tube.
3. When radiation enters the tube, it ionizes the gas, creating ions and electrons that produce a measurable electrical pulse.
4. Geiger counters are widely used in nuclear research, radiological protection, and environmental monitoring.
5. The sensitivity of a Geiger counter can vary depending on the type and energy level of the radiation being measured.

Review Questions

Related terms

Ionizing Radiation:

Radiation with enough energy to remove tightly bound electrons from atoms, thus creating ions.

Geiger-Müller Tube: The primary component of a Geiger counter that detects ionizing radiation through ionization of gas within the tube.

Radiological Protection: Measures designed to protect people from harmful effects of exposure to ionizing radiation.