These fact sheets provide common radiation concepts where some basic knowledge of science or radiation is helpful. Acronyms (PDF) Background Radiation Natural versus Man-Made (PDF) Biological Effects from Acute Exposure (PDF) Contamination versus Irradiation (PDF) Electromagnetic Pulse (EMP) (PDF) Emergency Response and the Office of Radiation Protection (PDF) How Do We Compare Activity and Dose? How Many PicoCuries in a Chest X-Ray? (PDF) How is Dose Measured? (PDF) How to Reduce Exposure to Radiation - Time, Distance and Shielding (PDF) Medical Uses for Radioactivity (PDF) Mobile Phone Use - see Non-Ionizing Radiation Nuclear Fission (PDF) Nuclear Weapon Detonation (PDF) Office of Radiation Protection Roles and Responsibilities (PDF) The Peaceful Atom (PDF) Potassium Iodide (KI) (PDF) Radiation Terms and Definitions (PDF) Transportation and Packaging (PDF) What is Ionizing Radiation? (PDF) What You Should Know if There is an Attack Involving Radioactive materials (PDF) More Resources About Radiation, NRC Radiation and Life, World Nuclear Association