Introduction to Radiation

Small amounts of radioactive materials can be found in our bodies, in products we use daily, in the ground, in building materials, and in outer space. They are a natural part of our everyday life. We commonly find radiation devices such as x-ray machines in a hospital or at the airport. We use radiation mainly for its beneficial purposes such as in medicine to diagnose disease, in industry to generate electricity, and in smoke detectors to make our homes safer.