geigermittari

Geigermittari, often referred to as a Geiger counter, is an instrument used for detecting and measuring ionizing radiation. It was invented by Hans Geiger and Walther Müller in 1928. The device works by using a Geiger-Müller tube, which is a gas-filled tube containing a pair of electrodes. When ionizing radiation, such as alpha particles, beta particles, or gamma rays, enters the tube, it ionizes the gas within. This ionization creates a brief electrical pulse that is then detected and amplified by the instrument's electronics. The pulses are typically converted into audible clicks or displayed as a count rate on a meter, indicating the intensity of the radiation. Geiger counters are commonly used in various fields, including nuclear physics research, radiation monitoring in nuclear power plants, environmental surveying, and by first responders dealing with potential radioactive contamination. They are generally sensitive to different types of radiation, though their effectiveness and calibration can vary. Simple Geiger counters are relatively inexpensive and portable, making them accessible for a wide range of applications where radiation detection is necessary.