The Geiger-Muller (GM) tube allows a user to measure different types of radiation, including alpha, beta, x, and gamma particles. A GM tube consists of one anode and one cathode enclosed in a ...
I got one today Ludlum 3 with the 44-9 probe. Anyhow coolest toy yet. I notice it clicks on occasion (background radiation) Some times I notice like a group of clicks all come in once in a while, is ...