How do geiger counters work?

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How do geiger counters work?

In: Technology

2 Answers

Anonymous 0 Comments

They are chambers filled with a special gas (Boron Triflouride) that interacts with high energy photons and neutrons by releasing electrons. These electrons are attracted to a positively charged center rod in the chamber, and as they accelerate towards this rod, they create secondary reactions in the gas, releasing more electrons. When this large group of electrons hit the center charged rod, it created a momentary difference in voltage which is interpreted in the circuitry as a count and moves the needle on the Geiger counter a bit.

Anonymous 0 Comments

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