With this video I show you how to build a fully operational solid state Geiger counter with just three electronic components. You need a sensor BG51 for beta particles and gamma ray. This sensor is available at www.teviso.com.
With the BG51 Sensor three AAA batteries last for over five years uninterrupted operation.
The signal output of the BG51 provides pulses strong enough to produce one click in the headphone for each nuclear impact detected by the sensor.
As a next step you may want to monitor and record radiation dose. I suggest adding an Arduino board with a display and an appropriate program.
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