Using a Geiger counter The Geiger counter was developed by a German scientist named Hans Geiger in the early 1900s. The original tool could detect radiation but could not identify its source or type.

Which Geiger counter is best? If you want to monitor radiation levels from a specific source, you need a reliable Geiger counter. This tool can warn you when there is radiation, as well as measure ...

I got some Geiger tubes a few days ago and built a very simple Geiger counter circuit that is powered entirely through the microphone jack (microphone connection provides a little power for things ...

In this lesson, students will investigate the nature of radioactivity and the effect of both distance and shielding materials on different radioactive sources using a Geiger-Muller tube with a counter ...