radioactivity – Geiger-Muller
Uses a separate Geiger probe to measure radioactive counts or count rate. Most useful are those that show the count rate at a point in time – with a fast decaying source you can plot a decay curve in real time. Its other use is for a visual display of the effect of distance, or materials on radioactivity. The types which work purely as a Geiger Counter – which accumulate counts – are best used as stand alone meters rather than with a computer. In its defence, the sensor may be better value for money than a scaler box. My rating was * / +
I’ve rated these sensors but your assessment will be different. I give * to **** for the sensor’s intrigue, interest, and learning potential. I give from + to ++++ for how often a science department might use it.