Ionization Chambers - Video Lesson

Hey, everybody. Welcome back. This lesson is about ionization chambers, one of the most common radiation detection devices. So here's how they work. Ionization chambers are built around a very simple air chamber or gas chamber. It's literally a metal chamber filled with air or gas. Radiation interacts with air in the chamber. And causes ionization to take place when electrons are knocked out of their orbit. These free electrons create a measurable electric current that can be converted into a useful radiation measurement, such as exposure, which is coolant per kilogram, air chroma, which is measured in gray, or equivalent dose in air, which is measured in sieverts. It's a very basic device, especially used for measuring radiation in air. And that's why it's constructed out of an air chamber or gas chamber. The most common ionization chambers are called geiger counters or