Fabrication of Geiger counter
I took advantage of it produced in their Geiger counter manufactured by Strawberry Linux. Geiger counter with a cylindrical core and has become the electrodes have a voltage of several hundred volts between them. Within the cylinder is filled with an inert gas such as helium. Radiation passes through the inside of the cylinder, the discharge electrons of the inert gas is ionized, it is and electron cations, it is intended that measures the amount of radiation at times flows of pulse current generated at that time.