Neutron radiation is also made from nuclear reactors in power plants and nuclear-powered ships and in particle accelerators, devices used to study subatomic physics. In many cases, a nucleus that has undergone alpha decay, beta decay or spontaneous fission will be highly energetic and therefore unstable. It will eliminate its extra energy as an electromagnetic pulse known as a gamma ray . Gamma rays are made of energy, not moving particles like alpha and beta particles. While on the subject of various rays, there are also cosmic rays bombarding the earth at all times.
Cosmic rays originate from the sun and also from things like exploding stars.
It is the speed of the particles, by the way, that gives them their abilities to penetrate matter. When they hit the atmosphere, they collide with atoms in the atmosphere in various ways to form secondary cosmic rays that have less energy. These secondary cosmic rays then collide with other things on Earth, including humans. Inc. All rights reserved. Simply register for a free Postbox in the country where your merchant is located.