(Infographic: M.Platonova/ IAEA). The circle in the middle of the trefoil represents an atom and the blades represent the three common types of ionizing radiation emanating from it — alpha (α), beta ...

Gamma rays can only be detected by sensors made of dense metals and takes over six feet (1.8 meters) of concrete to block. Gamma rays are high-energy photons produced by some of the most violent ...

Its symbol is α. These alpha particles are often ... end of the electromagnetic spectrum have no mass known as gamma rays. Gamma rays and X-rays are high-energy waves that can travel far beyond ...

These sources emit ionizing radiation, typically in the form of alpha and beta particles, gamma rays or neutron radiation ... The black, magenta or yellow trefoil symbol or the words “radiation” or ...