What type of radiation does a Geiger counter detect with high sensitivity?

A Geiger counter is designed to detect various types of ionizing radiation, but it is particularly sensitive to low levels of radiation, which makes it an effective tool for monitoring environmental radiation, contamination, and safety during radiological procedures. It can register counts per minute (CPM) and is calibrated to provide readings reflecting low radiation levels, which is crucial for ensuring safety in medical, industrial, and environmental applications.

While Geiger counters can detect alpha particles, high-energy beta particles, and even neutrons under certain conditions, these types of radiation often require specific configurations or additional shielding to effectively measure them. For example, alpha particles are typically less penetrating and may require a special window in the detector, while neutron detection often requires specific detectors designed for that purpose due to neutrons not being charged particles.

In essence, the strength of a Geiger counter lies in its ability to detect low levels of radiation with high sensitivity, making it particularly valuable for continuous monitoring and ensuring that radiation exposure stays within safe limits.