Handmade Air Geiger Counter


There is radioactivity. The radioactive rays are invisible. We are suffering from it. The sun is a nuclear fusion reactor. Are the radioactive rays dangerous? How far do we take a distance from radioactive obstacle for our safety?
I had lots of questions. First, I had wanted to measure radioactivity to understand the effect from the field.
Geiger counter, dosimeter, is a measurement device. But it is very expensive.
I made a sensor, geiger muller tube, with low cost. And I had success to count it.

Use this document at your own risk!
Danger high voltage in the geiger counter.

The Air Geiger Counter Kit has been launched by Bit Trade One, LTD which I have licensed. In detail http://j-kosaku.jp/
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