CHAPTER 36
Geiger Counter
This project uses a low-cost Geiger-Müller tube to detect gamma and beta radiation (Figure 36-1). If you do not have a radiation source, then the project is still interesting in that it will also detect cosmic rays.
FIGURE 36-1 Geiger counter.
WARNING This project generates the 450 V that the Geiger-Müller tube requires to operate. The voltage is generated from the Arduino’s USB power supply and is extremely low current (and therefore relatively low risk). However, you should take special care with this project ...
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