What Is Muon Vision?
- Managing Editor
- Clay Dillingham
Muons are subatomic particles created when very high-energy cosmic-ray particles from outer space collide with atomic nuclei in the upper layers of Earth’s atmosphere.
Muons travel at nearly the speed of light and rain down on Earth’s surface from random locations and random directions; every second, 100 muons hit each square yard of Earth’s surface. Their tremendous energy enables them to penetrate most objects and even travel hundreds of feet into Earth’s crust. Yet, muons compose fewer than 10 percent of all background radiation and are harmless to people.