Geiger-Muller Tube
Definition
A gas-filled cylindrical tube with a thin entrance window and a high-voltage central wire. An ionising particle entering the tube triggers a Townsend avalanche that produces a measurable pulse. Cheap, robust, alpha/beta/gamma sensitive, and famously not energy-resolving; every pulse looks like every other pulse.
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Explained in
- Radiochemistry: Radioactivity, Carbon Dating, Neutron ActivationA gas-filled cylindrical tube with a thin entrance window and a high-voltage central wire. An ionising particle entering the tube triggers a Townsend avalanche...