Radiation Protection

Learn About Radiation Units

Different terms and units are used to measure radioactivity and estimate health effects.

View the Radiation Units Page

Calculate Your Radiation Dose

Try our Radiation Dose Calculator 

You can estimate your yearly dose from natural, technological, and medical sources of ionizing radiation. 

View the Dose Calculator

Understand Radiation Health Effects

Low Dose = Low Risk

Health effects from radiation exposure depend of the type of radiation, how much of it was absorbed by the body, and how it was received.  

View the Health Effects Page

Radiation Communication Tools

Pre-scripted messages for emergency response

Q&As and templates for users of the 2017 Protective Action Guide (PAG) Manual

View Public Communication Tools