Background radiation is the invisible radiation that is always present in our environment. It comes from a variety of sources, both natural and man-made. Natural sources include cosmic rays from space ...

Radioactive sources contain radioactive material of a particular radionuclide (an unstable form of an element emitting radiation), which can vary based on the application for which the source was ...

Knowing that you're living with radiation sources might make you feel like there are scary dangers lurking around your home. But radioactive materials are actually found everywhere — in the earth, our ...

Congress asked the National Academies to review the civilian uses of radiation sources that contain radionuclides and the potential replacements for sources that pose a high risk to public health or ...

The IAEA has published a safety guide to protect students and researchers who use radioactive material or radiation in learning or research. Students and researchers who work with radiation sources ...