Geiger counter: How they detect and measure radiation - Livescience.com

Geiger counters use the natural process of ionization to detect and measure radiation levels

A Geiger counter, also known as the Geiger-Muller tube, is an inexpensive and useful instrument used to quickly detect and measure radiation.  There are two types of radiation , non-ionizing and io… [+3793 chars]

full article...