Understanding Radiation

This page provides introductory information about many varieties of radiation, with different levels of detail: 

• At a Glance: engaging online presentations (requires Adobe Flash player)
• Frequently Asked Questions: information presented in question and answer format
• Information sheets: Introductions to topics, about 1-5 pages long, with some illustrations and references
• Understanding radiation - topics: detailed outlines of topics, with links to HPA publications and statement