But as they are often built around the Soviet-era SBM-20 Geiger–Müller tube, these devices have generally ... An unfortunate bug was discovered in the HV circuit. That said, [g3gg0] decided ...

Over the years we’ve featured quite a few radiatioactivity detectors, which usually include a Geiger-Muller tube, or perhaps a large-area photodiode. But in the event of radiation exposure from ...

The ionising effect of radiation is used in the Geiger-Muller (GM) tube as a means of detecting the radiation. The GM tube is a hollow cylinder filled with a gas at low pressure. The tube has a ...