Description: A geiger counter and a selection of radioactive sources ... Americium 241 smoke detector source; wrist watch with Radium dial The counter is a Ludlum Model 3 Survey Meter. The meter may ...

Even if you don’t work in a nuclear power plant, you might still want to use a Geiger counter simply out of curiosity. It turns out that there are a lot of things around which emit ionizing ...

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 ...

LONDON - Geiger Counter Limited, the investment company, has announced the purchase of 450,000 of its own ordinary shares on January 15, 2025. The shares were bought back at an average price of 49 ...

In lieu of spending a fair bit of money on dedicated muon detectors, you can also hack such a device together with two Geiger-Müller tubes and related circuitry for about $100 or whatever you can ...